Document Document Title
US08891851B2 Home healthcare management system and hardware
A home healthcare management system wherein a patient conducts self diagnoses and self testing, and manages their own medical records at home. A digital microscope is utilized as part of the system that is smaller, of lower cost, faster, of a higher dynamic range, and has a higher resolution than conventional microscopes. The microscope consists of an illumination source, a spatial sub-sampling device and a detector device. The digital microscope provides a vectored method of collecting images from a digital microscope that is independent of the optical resolution, and a slide based coordinate system, and a method of displaying images and communicating such images over the Internet in a file format that does not require a header or prior knowledge of magnification, coordinate system, or tiling structure. The system further includes an interface for physiological monitoring devices and a connection to the Internet for more comprehensive services.
US08891848B2 Automated vertebral body image segmentation for medical screening
A method is disclosed for fully automated segmentation of human vertebral body images in a CT (computerized tomography) study with no user interaction and no phantoms, which has resiliency to anatomical abnormalities, and protocol and scanner variations. The method was developed to enable automated detection of osteoporosis in CT studies performed for other clinical reasons. Testing with 1,044 abdominal CTs from multiple sites, resulted in detection of 96.3% of the vertebral bodies and 1% false positives. Of the detected vertebral bodies, 83.3% were segmented adequately for sagittal plane quantitative evaluation of vertebral fractures indicative of osteoporosis. Improved results were observed when selecting the best sagittal plane of 3 for each vertebra, yielding a segmentation success rate of 85.4%. The method is preferably implemented in software as a building block in a system for automated osteoporosis detection.
US08891841B2 Mobile dermatology collection and analysis system
A method, performed by a mobile communication device, may include obtaining one or more images, extracting one or more features from the one or more images, and determining a dermatological classification for the obtained one or more images based on the extracted one or more images and based on a dermatological analysis model. The method may further include determining a recommendation based on the determined dermatological classification and providing information about the determined dermatological classification along with the recommendation to a user of the mobile communication device.
US08891835B2 System and method for matching faces
Disclosed herein are systems, computer-implemented methods, and tangible computer-readable media for matching faces. The method includes receiving an image of a face of a first person from a device of a second person, comparing the image of the face of the first person to a database of known faces in a contacts list of the second person, identifying a group of potential matching faces from the database of known faces, and displaying to the second person the group of potential matching faces. In one variation, the method receives input selecting one face from the group of potential matching faces and displays additional information about the selected one face. In a related variation, the method displays additional information about one or more face in the displayed group of potential matching faces without receiving input.
US08891832B2 Computer-vision-assisted location check-in
In one embodiment, an uploaded multimedia object comprising a photo image or video is subjected to computer vision algorithms to detect and isolate objects within the multimedia object, and the isolated object is searched against a photographic location database containing images of a plurality of locations. Upon detecting a matching object, the location information associated with the photograph in the database containing the matching object may be leveraged to automatically check the user in to the associated location.
US08891831B2 Method and apparatus for conservative motion estimation from multi-image sequences
Apparatus and methods are presented for estimating the velocity field based on a multi-image frame sequence having an integer number M frames, M is greater than two, in which a set of M−1 displaced frame difference (DFD) equations is solved using a set of iteration equations to determine a velocity field.
US08891821B2 Object tracking device, object tracking method, and object tracking program
An object tracking apparatus is provided that enables the possibility of erroneous tracking to be further reduced. An object tracking apparatus (300) is an apparatus that tracks the position of an object displayed in video using a particle filter, and has: a feature calculation section (340) that generates a plurality of particles indicating candidates for the position of the object, and calculates a feature of an image of the object and features of images of the particles; a likelihood calculation section (350) that calculates, for each particle, the likelihood of that particle being the position of the object from similarity between a feature of an image of that particle and a feature of an image of the object; a position estimation section (360) that estimates the position of the object based on the calculated particle likelihood; and a likelihood correction section (390) that performs likelihood correction when there are a plurality of objects and a plurality of positions estimated in correspondence to these overlap.
US08891813B2 Media fingerprints that reliably correspond to media content with projection of moment invariants
A portion of media content is accessed. Components from a first and each subsequent spatial regions of the media content are sampled. Each spatial region has an unsegmented area. Each subsequent spatial region includes those within its area as elements thereof or the spatial regions may partially overlap. The regions may overlap independent of a hierarchical relationship between the regions. A media fingerprint is derived from the components of each of the spatial regions, which reliably corresponds to the media content portion, e.g., over geometric attacks such as rotation.
US08891812B2 Secure prescription computer for generating prescriptions that can be authenticated and verified
A method to secure unique information about a handwritten document and to provide verification of document's authenticity, integrity and non-repudiation. The method includes the following steps: creating a document having an area of interest containing information, segmenting the area of interest on the document into a plurality of elements, obtaining the average gray scale of each element, inserting the average gray scale of each element into an identifier, and attaching the identifier to the document.
US08891808B2 Micro-speaker
Disclosed is a micro-speaker. The micro-speaker includes a frame, a magnetic circuit unit assembled with the frame, a diaphragm extending along a longitudinal direction, a coil, an elastic member and an FPC. The diaphragm includes a top plate and a periphery portion surrounding the top plate. The top plate includes a supporting portion extending from the top plate towards the base wall of the frame and disposed at a periphery portion of the top plate in the longitudinal direction. The elastic member includes an elastic part, a first end connecting to the supporting portion of the diaphragm and a second end connecting to the frame.
US08891806B2 Mobile terminal
A mobile terminal including a case forming an external appearance, a circuit board positioned in the case, an acoustic output unit, and a connector joined to the acoustic output unit and electrically connected to the circuit board is provided. The connector contacts one lateral surface of the circuit board and is elastically deformed through the contact. The connector may include a fixed end portion inserted into the acoustic output unit and a free end portion connected to the fixed end portion to be elastically displaced.
US08891804B2 Electroacoustic transducer
An electroacoustic transducer is disclosed. The electroacoustic transducer includes a frame forming a hollow space, an elastic plate mounted on the frame, a vibrating member suspended in the hollow space by the elastic plate, a diaphragm arranged facing the vibrating member, a voice coil positioned on the diaphragm. The vibrating member includes a yoke defining a bottom wall, a side wall extending upwardly and perpendicularly from an outer periphery of the bottom wall, a lapel extending vertically from the side wall. A width of the lapel is greater than that of the side wall or the bottom wall.
US08891802B2 Enclosure and enclosure system for a speaker of an electronic device
The disclosure relates to a system for adjusting a response signal of a transducer of an electronic device is provided. The system comprises: a substrate, such as a printed circuit board (PCB), having a first side and a second side; a transducer making an electrical connection with the first side of the PCB; and an enclosure mounted on the second side of the PCB. The enclosure defines a volume by an interior space of the enclosure and the second side of the PCB. In the system, the PCB, the transducer and the enclosure are contained within a housing for the device; and the transducer is in communication with the volume.
US08891800B1 Earbud charging case for mobile device
A case for a mobile device includes a rear panel, a plurality of walls extending around the rear panel, a base portion having a jack configured to receive a power cord input, a first aperture configured to receive a first earbud, a first electrical contact of the first aperture configured to engage a first corresponding charging contact of the first earbud, a second aperture configured to receive a second earbud, a second electrical contact of the second aperture configured to engage a second corresponding charging contact of the second earbud, a first electrical connection configured to engage the jack with a power input port of the mobile device, and a second electrical connection configured to engage the jack with the first electrical contact and the second electrical contact.
US08891799B2 Earphone
An earphone includes a cylindrical portion having an opening in one end and an audio output unit which outputs sound from one face. The audio output unit is fixed to the cylindrical portion such that another face is in contact with an end face of the one end of the cylindrical portion. The audio output unit and the cylindrical portion are insertable at least partially in the external auditory canal of a human being. The earphone further includes a thin-wall part provided in the cylindrical portion and a ring, made of a material of a greater specific gravity than the cylindrical portion, which is fixed to the inner surface. The ring is fixed in a position such that the ring overlaps in the axial direction of the cylindrical portion with respect to the thin-wall part.
US08891798B1 Headphones with asymmetric coupling
Headphones can be configured such that back surfaces of the speaker housings can be coupled to form a loop enabling users to wear the headphones around their necks when the speakers are not in use. In various embodiments, faces of the respective speaker housings may comprise asymmetrical, complementary surfaces. In such embodiments, the users can distinguish between the speakers intended to correspond with respective right and left stereo channels by tactile feel. In some embodiments, the interlocking of the housing structures can be achieved by magnetic force to maintain the coupling when the speakers are not in use but can be decoupled by the user without undue effort. In some embodiments, the speaker housings are configured to constrain the housings to a specific orientation when mated.
US08891797B2 Audio format transcoder
An audio format transcoder for transcoding an input audio signal, the input audio signal having at least two directional audio components. The audio format transcoder including a converter for converting the input audio signal into a converted signal, the converted signal having a converted signal representation and a converted signal direction of arrival. The audio format transcoder further includes a position provider for providing at least two spatial positions of at least two spatial audio sources and a processor for processing the converted signal representation based on the at least two spatial positions to obtain at least two separated audio source measures.
US08891793B1 Remote control for a hearing assistance device
The present subject matter provides systems and methods for remotely controlling a hearing assistance device, including using a personal wireless device such as a cellular telephone. One embodiment includes a communication system for controlling a hearing assistance device. The system includes a personal wireless device including a short range radio transmitter. The short range radio transmitter is programmed to transmit instructions to the hearing assistance device by conversion of inputs to the personal wireless device into control signals for the hearing assistance device using on/off keying of the short range radio transmitter.
US08891790B2 Methods for using an accessory to communicate with an electronic device
Electronic devices and accessories such as headsets for electronic devices are provided. A microphone may be included in an accessory to capture sound for an associated electronic device. Buttons and other user interfaces may be included in the accessories. An accessory may have an audio plug that connects to a mating audio jack in an electronic device, thereby establishing a wired communications link between the accessory and the electronic device. The electronic device may include power supply circuitry for applying bias voltages to the accessory. The bias voltages may bias a microphone and may adjust settings in the accessory such as settings related to operating modes. User input information may be conveyed between the accessory and the electronic device using ultrasonic tone transmission. The electronic device may also gather input from the accessory using a voltage detector coupled to lines in the communications path.
US08891784B2 Microphone assembly for use with an aftermarket telematics unit
A microphone assembly for use with an aftermarket telematics unit mounted in a passenger compartment of a vehicle is disclosed herein. The aftermarket telematics unit has a chamber having an opening that generally faces towards a rear of the vehicle and the microphone assembly includes, but is not limited to, a directional wideband microphone disposed within the chamber. A preamplifier is internally mounted within the directional wideband microphone. The preamplifier has an electrical lead and is both electrically and structurally attached to the aftermarket telematics unit via the electrical lead. The electrical lead is the sole means of physical attachment between the directional wideband microphone and the preamplifier, on the one hand, and the aftermarket telematics unit on the other hand.
US08891783B2 Directional sound system
A directional sound system is disclosed. The directional sound system (400) comprises a plurality of equalization stages (404, 406) configured to equalize an input signal; and a transducer stage (412) configured to transmit the equalized input signal; wherein the plurality of equalization stages (404, 406) comprises a first equalization stage (404) configured to employ an approximated model of the transducer stage (412) and a second equalization stage (406) configured to compensate for differences between the approximated model of the transducer stage (412) and an actual model of the transducer stage (412).
US08891780B2 Microphone array device
A microphone array device includes a first sound reception unit configured to obtain a first sound signal that is input from a first microphone, a second sound reception unit configured to obtain a second sound signal that is input from a second microphone, a noise state evaluation unit configured to compare the first sound signal and the second sound signal and to obtain an evaluation parameter to evaluate an influence of a non-target sound included in the second sound signal on a target sound included in the first sound signal according to a result of the comparison, a subtraction adjustment unit configured to set a suppression amount for the second sound signal based on the evaluation parameter and to generate a third sound signal; and a subtraction unit configured to generate a signal to be output based on the third sound signal and the first sound signal.
US08891779B2 In-ear earphone
There is provided an in-ear earphone comprising a housing having at least one electroacoustic transducer, a control unit which outputs a test signal to the electroacoustic reproduction transducer for reproduction, and a tightness measuring unit for measuring a parameter representative of the tightness of a fit of the earphone in an ear canal. The control unit is adapted to output a second audio signal as confirmation of a tight fit of the earphone to the electroacoustic reproduction transducer for reproduction.
US08891777B2 Hearing aid with signal enhancement
A method of binaural signal enhancement in a binaural hearing aid system, includes providing at least one microphone audio signal in response to sound, providing an estimate of one of a target signal and a noise signal based on the at least one microphone audio signal, phase shifting the estimate of one of the target signal and the noise signal, providing a phase shifted signal in which the phase shifted estimate of one of the target signal and the noise signal substantially substitutes the respective one of the target signal and the noise signal, transmitting a first signal representing the phase shifted signal towards a first eardrum of a user of the binaural hearing aid system, and transmitting a second signal representing the at least one microphone audio signal towards a second eardrum of the user. A system for performing the method is also described.
US08891776B2 Decoding of multichannel audio encoded bit streams using adaptive hybrid transformation
The processing efficiency of a process used to decode frames of an enhanced AC-3 bit stream is improved by processing each audio block in a frame only once. Audio blocks of encoded data are decoded in block order rather than in channel order. Exemplary decoding processes for enhanced bit stream coding features such as adaptive hybrid transform processing and spectral extension are disclosed.
US08891764B2 Quarantine method for sellable virtual goods
A method is disclosed for quarantining digital content data for a service in a terminal device. In an embodiment, the method includes creating a digital content data item, e.g. a digital still image or a video stream, in the memory of the terminal device, generating a symmetric encryption key for encrypting the created digital content data item, encrypting the digital content data item using the generated symmetric encryption key, encrypting the generated symmetric encryption key using public key of the service, deleting the unencrypted version of the digital content data item and of the symmetric encryption key from the memory of the terminal device, sending the encrypted version of the digital content data item and of the symmetric encryption key to a server of the service, and receiving from the server of the service at least one of the following: instruction to delete the encrypted digital content data item from the memory of the terminal device, and decrypted version of the symmetric encryption key for decrypting the encrypted digital content data item in the memory of the terminal device.
US08891760B2 System for checking acceptance of string by automaton
A server having an automaton whose state transitions in accordance with received characters, determines whether the automaton has transitioned to a final state on the basis of the characters. The server receives a coding sequence from the client in the characters included in the string. The coding sequence elements corresponding to the characters are values encrypting a non-unity using a first encryption scheme having homomorphism, and whose elements not corresponding to the characters are values encrypting a unity using the first encrypting scheme. The server generates, in response to receiving the coding sequence, exchange data encrypting a subsequent state key corresponding to each of a plurality of previous states of the automaton on the basis of the coding sequence using the first encryption scheme; encrypts exchange data with the corresponding previous state key and sends the encrypted exchange data to the client.
US08891754B2 Method and system for automatically routing a telephonic communication
A method for automatically routing a telephonic communication to at least one of a plurality of communication destination addresses is provided. The method is implemented by a computer readable medium having a plurality of code segments. The method comprises the step of receiving customer identifier and communicating with a customer history database configured to store historic data. The method also includes determining whether the received customer identifier corresponds to a stored customer identifier in the customer history database. Historic data corresponding to the stored customer number is identified based on the comparison of the received customer identifier and the stored customer identifier. The telephonic communication is associated with a predetermined communication destination based on the identified historic data. The associated communication data is transmitted to a switching signal.
US08891749B2 System and method for providing emergency wireline telephone services to residences
A system and method for providing wireline telephone services may include providing wireline telephone services to a residence to enable a user to place telephone calls. In response to receiving an access code, the user may be enabled to place telephone calls. The user may be billed for placing the telephone calls on a per-usage basis.
US08891747B2 Method and apparatus for assessing the status of work waiting for service
The present invention provides a system and method for assessing the status of work waiting for service in a work queue or a work pool. Work items are placed in the work queue or work pool and have a service time goal. The work items in the work queue or work pool are scanned and a required queue position for each work item is calculated according to the amount of time remaining prior to the expiration of the service time goal and weighted advance time for servicing of work items in the work queue or pool. An array of counters has elements which correspond to required queue positions. Upon the calculation of the required queue position for a work item, the counter corresponding to the required queue position is incremented. When all of the work items are scanned, the array of counters is analyzed to predict a future state of the work queue or work pool.
US08891743B2 Gain control enhancement for modulated communications
In one implementation, a method for implementing gain control enhancement for modulated communications includes establishing a communication session between a first endpoint and a second endpoint. The communication session involves forwarding a call signal using an initial gain level until a state transition is detected in the communication session at a digital signal processor. The detection may occur in a transmitting gateway associated with the first endpoint or a receiving gateway associated with the second endpoint. The state transition indicates modulated communications, which may include fax, modem, or text telephony. For example, communication session may be fax over IP (FoIP). The call signal is forwarded using an adjusted gain level based on the state transition. The adjusted gain level may be selected to avoid clipping in the call signal.
US08891742B2 IP handset-based voice mail notification
A system and method that notifies the receipt of a voicemail message at an IP telephone using one or more of instant messaging and short message service. A preferred embodiment of the invention provides an IP telephone that prepares a notification regarding the receipt of a voicemail message. In one embodiment, the IP telephone queries the availability of an instant messaging client via an instant messaging presence server, and forwards the notification to the instant messaging presence server if the instant messaging client is available. In another embodiment, the IP telephone sends the notification to a short message service client via a short message service gateway. In still another embodiment, the IP telephone sends the notification to both instant messaging client and short message service clients.
US08891741B2 Call control element constructing a session initiation protocol (SIP) message including provisions for incorporating address related information of public switched telephone network (PSTN) based devices
A Session Initiation Protocol (SIP) message adapted for use by a multi-media services provider system to form a multi-media communication path between at least a calling communication device adapted to operate using a first protocol (e.g. SIP) and at least a destination communication device adapted to operate using a second protocol, such as Integrated Services Digital Network User Part (ISUP). The SIP message includes a header region having a number of header fields, a first body region having Session Description Protocol (SDP) information related to the calling communication device and a second body region having ISUP related addressing information associated with the destination communication device.
US08891740B2 Voice input state identification
A method for indicating voice input state for a call on a communications device. A processor unit identifies the state of voice input for the call. In response to the state of the voice input being a mute state, the processor unit identifies a mute setting for the mute state based on a user profile. Thereafter, first audio data specified by the mute setting is played with audio data from the call on the communications device. In response to the state of the voice input being an unmute state, the processor unit identifies an unmute setting for the unmute state based on the user profile. Thereafter, second audio data specified by the unmute setting is played with the audio data from the call on the communications device.
US08891738B2 Method of processing telephone voice output, software product processing telephone sound, and electronic device with telephone function
A method of processing telephone voice output is applied in an electronic device with telephone function. When any one of the two communicators is a hearing-impaired user, at least one of the electronic devices will obtain the corresponding voice adjustment parameters according to the receiver identification of the hearing-impaired user. Therefore, the voice adjusting program is able to process the voice in advance based on the voice adjustment parameters to help the hearing-impaired user hear better.
US08891734B2 Portable digital radiography detector loss prevention
A method for managing a portable x-ray detector for an x-ray imaging apparatus registers at least one portable detector with a processor that is associated with the x-ray imaging apparatus. A generated signal is indicative of the location of the registered portable x-ray detector relative to the x-ray imaging apparatus. An alert indication is provided when the generated signal indicates separation of the registered portable x-ray detector from the x-ray imaging apparatus beyond a predetermined distance.
US08891732B2 Apparatus and method for detecting marks and semiconductor device processing system
The present invention discloses an apparatus and a method for detecting a mark as well as a semiconductor device processing system. In order to address the problem existing in the prior art that detection of a mark in a layer of a semiconductor device has a low accuracy, the present invention uses an X-ray emitter and an X-ray detector to image the mark contained in the layer of the semiconductor device supported on the supporting member. According to the present invention, due to the use of the X-ray, even if the mark is covered by multiple layers which are opaque to visible light, the mark may be clearly imaged.
US08891730B2 Apparatus for monitoring the connection of a conveyor belt by means of high-energy rays
The invention is directed to an apparatus for continuous and non-destructive monitoring of the connection of a conveyor belt. During movement of the conveyor belt, a radiation source emits rays in the direction of the belt surface. The rays are of such high energy that they penetrate the conveyor belt and the connection thereof within a material-free region. A sensor detects the rays which have passed through. A process computer evaluates the result of the radiographic examination by comparing the actual connection values to set connection values and connection limit values. The radiation source and the sensor are accommodated in a housing. The housing has two openings between the radiation source and the sensor through which the moving conveyor belt passes without contact. The housing is integrated into the lower run of a conveyor system.
US08891728B2 Specimen supporting member for X-ray microscope image observation, specimen containing cell for X-ray microscope image observation, and X-ray microscope
A specimen supporting member (10) includes: a specimen supporting film (11) such as a silicon nitride film, a carbon film, and a polyimide film; an X-ray radiation film (13) provided on one principal surface of the specimen supporting film, and for radiating a characteristic X-ray in a soft X-ray region upon irradiation with charged particles; and a specimen adsorption film (12) which is a metal film provided on another principal surface of the specimen supporting film (11), and which fixes by adsorption a specimen (1) to be observed. Since a protein which is a constitutive substance of a biological specimen has a characteristic to easily adsorb to a metallic ion, a specimen adsorption film (12) is formed on one principal surface of the specimen supporting film (11) so that an observation specimen adsorbs thereto.
US08891715B2 Digital pre-distortion
A pre-distortion circuit that may introduce a pre-distortion signal in a communication channel by determining a harmonic signal of the signal to be output. One or more image correction signals of the signal to be output may be determined. The one or more image correction signals may be complex conjugate signal variations of the signal to be output. The harmonic signal, the one or more image correction signals and the signal to be output may be combined into a combined output signal. The combined output signal may be transmitted to a digital-to-analog converter. The predistortion circuit may be implemented in a FPGA, an ASIC, a digital-to-analog converter, and/or a separate IC package.
US08891713B2 System for adaptive sampled medical signal interpolative reconstruction for use in patient monitoring
A patient medical signal processing system adaptively reconstructs a medical signal sampled using a varying sampling rate. The system includes an input processor and a signal processor. The input processor receives first data and second data. The first data represents a first portion of a medical signal derived by sampling at a first sampling rate and the second data represents a second portion of the medical signal derived by sampling at a second sampling rate. The first and the second sampling rates are different and comprise a master clock rate or an integer division of the master clock rate. A signal processor provides a reconstructed sampled medical signal by, interpolating the second data to provide third data at the first sampling rate and combining the first data and the third data to provide the reconstructed sampled medical signal.
US08891693B2 Signal processing method and receiver for wireless communication system
A receiver selects, regarding each of signals corresponding to component elements of a transmission column vector, a number of transmission signal candidates equal to a number according to a predetermined parameter based on inter-signal point distances between a plurality of transmission signal candidates regarding the transmission column vector and the signal from among the plural transmission signal candidates. Then, the receiver reproduces the transmission signal by determining a unique set of transmission signal candidates regarding each component element of the transmission column vector based on the sum total of the inter-signal point distances between the selected transmission signal candidates and the signals.
US08891692B2 Data processing apparatus and method for interleaving and deinterleaving data
A data processing apparatus is arranged to map input data symbols to be communicated onto a predetermined number of sub-carrier signals of Orthogonal Frequency Division Multiplexed OFDM symbols. The predetermined number of sub-carrier signals is determined in accordance with one of a plurality of operating modes and the input data symbols are divided into first sets of input data symbols and second sets of input data symbols.
US08891691B2 Data processing apparatus and method for use in an interleaver suitable for multiple operating modes
A data processing apparatus maps input symbols to be communicated onto a predetermined number of sub-carrier signals of an Orthogonal Frequency Division Multiplexed (OFDM) symbol. The data processor includes an interleaver memory which reads-in the predetermined number of data symbols for mapping onto the OFDM sub-carrier signals. The interleaver memory reads-out the data symbols on to the OFDM sub-carriers to effect the mapping, the read-out being in a different order than the read-in, the order being determined from a set of addresses, with the effect that the data symbols are interleaved on to the sub-carrier signals. The set of addresses are generated from an address generator which comprises a linear feedback shift register and a permutation circuit.
US08891690B2 Methods and apparatuses for transmitting and receiving preamble for multiple channel estimation
The present invention provides a method and apparatus for transmitting a preamble for multiple channel estimation. The method includes generating a channel estimation sequence, allocating the channel estimation sequence to some of a plurality of symbols in which a preamble is transmitted, and transmitting the preamble. The channel estimation sequence is generated by bisecting a sequence having a length N, generating a first sequence and a second sequence by adding a Zero-padded Suffix (ZS) having a zero value to a last part of each of the two bisected sequences, copying the first sequence and the second sequence at least once, and allocating the first sequences and the second sequences to some of the symbols.
US08891687B1 Digital system and method of estimating non-energy parameters of signal carrier
Navigation satellite receivers have a large number of channels, where phase discriminators and loop filter of a PLL operate in phase, with data bits and control of numerically controlled oscillator (NCO) carried out simultaneously on all channels. Since symbol boundaries for different satellites do not match, there is a variable time delay between the generation of control signals and NCO control time. This delay may be measured by counting a number of samples in the delay interval. A proposed system measures non-energy parameters of the BPSK signal carrier received in additive mixture with noise when a digital loop filter of PLL controls NCO with a constant or changing in time delay. A control unit controls bandwidth and a LF order by changing transfer coefficients based on analyzing estimated signal parameters and phase tracking error at a PD output.
US08891686B2 Data signal detection in optical and/or optoelectronic receivers and/or transceivers
Methods for detecting and/or indicating the presence of valid data and threshold setting and data detection circuitry are disclosed. The threshold setting and data detection circuitry and related methods may be useful for fast and accurate reception of optical signals. The detection circuit generally comprises (i) a first circuit configured to regulate or control a DC offset of a differential input signal, and (ii) a second circuit coupled to the first circuit, the second circuit configured to indicate the presence of a data signal at the differential input signal when a voltage difference between true and complementary nodes of the differential input signal is above a predetermined threshold.
US08891684B2 Nonlinear estimating apparatus and method and receiver
The present invention provides a nonlinear estimating apparatus and method, and a receiver. The nonlinear estimating apparatus includes: an information sequence acquiring unit, configured to acquire a symbol information sequence of the pulse signal inputted by a transmitting side; a perturbation quantity generating unit, configured to calculate the weighted sum of the interaction items of the pulses on one or more moments relative to the current moment, so as to obtain an additive perturbation quantity and a multiplicative perturbation quantity produced on a transmission link with a certain length; and a signal estimating unit, configured to estimating the signal received at a receiving side according to the symbol information sequence, the additive perturbation quantity and the multiplicative perturbation quantity. With the embodiments of the present invention, the accuracy of estimation of nonlinear signals may be further improved.
US08891683B2 IBOC broadcast receiver
A broadcast receiver suitable for receiving broadcast signals transferred by use of signal format of IBOC system. The broadcast receiver comprises a receiving means that holds information related to channels that can be acquired by a digital signal decoding process. If information related to a channel is to be used and is held by the information holding means, then it is used.
US08891681B2 Transmitters and methods
A transmitter comprises a baseband signal path, which is designed to provide a first baseband signal having an in-phase component and a quadrature component in a first mode of the transmitter and to provide a second baseband signal having an amplitude component and a phase component in a second mode of the transmitter; an oscillator circuit, which is designed to provide an oscillator signal, wherein the oscillator circuit is furthermore designed to provide the oscillator signal as an unmodulated signal in the first mode and to provide the oscillator signal as a modulated signal in the second mode, wherein a modulation of the oscillator signal in the second mode is based on the phase component of the second baseband signal; and a radio-frequency digital-to-analogue converter (RF-DAC), which is designed to receive the oscillator signal, the first baseband signal and the amplitude component of the second baseband signal, wherein the RF-DAC is furthermore designed to provide the vector-modulated RF output signal on the basis of the first baseband signal and the oscillator signal in the first mode and to provide the polar-modulated RF output signal on the basis of the amplitude component of the second baseband signal and the oscillator signal in the second mode.
US08891677B2 Power scaling for retransmissions in uplink MIMO hybrid ARQ
A method includes obtaining a precoder for retransmission of one codeword responsive to known precoding matrix P of rank r and modulation and coding scheme MCS assignments used in an original transmission, and a desired retransmission rank r′; and scaling power in the retransmission responsive to at least two of 1) information parameters Index of UL precoder in previous transmission, 2) rank r of uplink UL precoder in previous transmission, 3) MCS assignments in previous retransmission (MCSi), 4) rank r′ for UL retransmission 5) number of retransmit antennas used for codeword to be retransmitted x in previous transmission, 6) number of retransmit antennas x′ used for retransmission, 7) precoder for UL retransmission, 8) UL precoders and channel information for previous transmission, and 8) latest channel measurements.
US08891676B2 Antenna device and method in a MIMO system
The invention relates to the technical field of radio communications, and in particular to an antenna device for a radio base station, and a method of operating an antenna device in a Multiple-Input Multiple-Output system. Embodiments of the invention disclose a secondary precoder (24) in series with a Multiple-Input Multiple-Output precoder (22). The Multiple-Input Multiple-Output precoder (22) has a first plurality of inputs (26, 28) for one or more Multiple-Input Multiple-Output data streams, and a first plurality of outputs (30, 32) for the one or more Multiple-Input Multiple-Output data streams. The secondary precoder has a second plurality of inputs (34, 36) and a second plurality of outputs (38, 40). The first plurality of outputs (30, 32) are in communication with the second plurality of inputs (34, 36). The antenna device further comprises a controller device (64), and the antenna device is operable to control an output power value of the one or more data streams at the second plurality of outputs (38, 40).
US08891675B2 Power-indexed look-up table design of digital pre-distortion for power amplifiers with dynamic nonlinearities
This invention is a method of power amplifier digital pre-distortion which measures a current power level of the power amplifier, stores in a look up table entries consisting of a power level and a corresponding set of digital pre-distortion coefficients, selects a set of digital pre-distortion coefficients corresponding to the measured power level. If the measured current power level is near a power level index, the digital pre-distortion coefficients correspond to the power level index. If the measured current power level is greater than the maximum power level entry, the digital pre-distortion coefficients is of the maximum power level entry. If the measured current power level is less than the minimum power level entry, the digital pre-distortion is of the minimum power level entry. If the measured current power level is not near a power level index, the digital pre-distortion coefficients are an interpolation.
US08891673B1 System and method for a multichannel transmitter and receiver
A image converter receives and mixes a plurality of input signals with an impulse signal to generate an alias signal spectrum. An analog post-processor receives the alias signal spectrum and separates out a plurality of bandlimited signals and recombines them into a transmit signal. A processor monitors a power level of the plurality of input signals and dynamically, separately modifies one of the plurality of bandlimited signals with a command signal to the analog post-processor in response to a change in power level in the corresponding input signal.
US08891670B2 CATV transmission system using analog small form factor pluggable modules
A method includes reading operation parameters from a non-volatile memory located in a pluggable module that is coupled to a host module; processing the operational parameters with a processor located in the host module to control operation of a predistortion circuit located in the host module; adding predistortion to a signal with the predistortion circuit located in the host module and then sending the predistorted signal to the pluggable module. An apparatus includes a host module including a predistortion circuit and a processor coupled to the predistortion circuit; and a pluggable module coupled to the host module, wherein the pluggable module includes a non-volatile memory containing operational parameters for the predistortion circuit of the host module, wherein the operational parameters are processed by the processor of the host module to control the predistortion circuit of the host module.
US08891667B2 Transmission apparatus, transmission method and method of altering transmission band
A transmission apparatus for transmitting frames accommodating client data over a transmission network, comprising a clock generation unit that generates a clock for timing processing period of signal processing, a deviation detection unit that detects clock deviation between the clock generated by the clock generation unit and the clock used for timing processing period of signal processing by other transmission apparatus that receives the client data from outside the transmission network and adds them to frames, and a timing generation unit that generates timing signal of processing period of signal processing corrected with the clock deviation.
US08891665B2 Transmitting apparatus and communication system
Parallel/serial conversion is performed on an N (where N is a natural number)-bit first parallel data signal with a first converted clock acquired by multiplying a reference clock by N, and parallel/serial conversion is performed on an (N×K)-bit (where K is a natural number) second parallel data signal with a second converted clock acquired by multiplying the reference clock by N×K.
US08891653B2 MU-MIMO transmission method in wireless LAN system
A Multi-User-Multiple Input Multiple Output (MU-MIMO) transmission method performed by an AP in a Wireless Local Area Network (WLAN) system is provided. The method includes transmitting an MU-MIMO initiation message to a destination STA which is a target of a MU-MIMO transmission, the MU-MIMO initiation message informing that MU-MIMO transmission will be initiated, receiving a sounding frame transmitted by the destination STA as a response to the MU-MIMO initiation message and performing MU-MIMO transmission on data by beamforming based on channel information obtained from the sounding frame. The sounding frame includes precoded and virtualized channel information Hvirtual between the AP and the STA. A dimension of the Hvirtual is lower than a dimension of channel information H between the AP and the STA.
US08891651B2 Data transmission device and method in a wireless communications system
The present invention provides a data transmission device and method in a wireless communication system. The device comprises a processor which is connected with the M antennas and which is formed so as to generate data to be transmitted through the M antennas, on the basis of a precoding matrix; the precoding matrix is generated based on a plurality of matrices; and a first matrix, which is one matrix among the plurality of matrices, is selected from within a codebook for N antennas (where N
US08891640B2 Uplink training for MIMO implicit beamforming
In a method for beamforming in a multiple input multiple output (MIMO) communication system, a data unit is received from a communication device via a MIMO communication channel, and it is determined whether the data unit satisfies one or more selection criteria. Further, when it is determined that the data unit satisfies the one or more selection criteria, the data unit is selected to be used in developing a steering matrix for transmitting data units to the communication device.
US08891639B2 System and method for representing a multi-tone signal
The present invention is related to a system (1) for determining a representation of a multi-tone signal (2) comprising a plurality of phase coherent tones, at least two of said phase coherent tones being modulated by a modulating signal, said system comprising an input (3) for applying the multi-tone signal (2), phase coherent mixing means (5) for demodulation in connection with data acquisition means (6) for digitization, said mixing means and data acquisition means arranged for being fed with the multi-tone signal and with a reference signal (8) comprising said phase coherent tones, each pair of phase coherent tones having a fixed phase difference, whereby the data acquisition means is arranged for being triggered by a trigger signal (4) for yielding a representation of said modulation signals with fixed delay, processing means (7) arranged for receiving digital signals output from the data acquisition means and for comparing phase information of a downconverted tone of the multi-tone signal after demodulation with phase information derived from the corresponding tone of the demodulated reference signal and further arranged for controlling the phase coherent mixing means for sequential downconversion, such that a representation of said multi-tone signal can be determined.
US08891636B2 Apparatus and method for wireless communication
In a wireless communication method, a first wireless communication apparatus transmits through a first wireless resource to a second wireless communication apparatus a first signal generated from a second signal for use in processing performed by the second wireless communication apparatus and a third signal for use in error checking of the second signal. The second wireless communication apparatus detects a second wireless resource to be used in the processing on the basis of the first signal, and performs the processing by using the second signal and the detected second wireless resource. For the detection, a section of the first signal corresponding to the second wireless resource is scrambled, or the first signal is scrambled with a scrambling sequence corresponding to the second wireless resource, or the bit order in at least part of the first signal is changed in a manner corresponding to the second wireless resource.
US08891634B2 Adaptive filtering based upon boundary strength
Adjacent regions are identified in an image. Coding parameters for the adjacent regions are identified. Selective filtering is performed at the region between the identified adjacent regions.
US08891632B1 Method and apparatus for encoding video and method and apparatus for decoding video, based on hierarchical structure of coding unit
An apparatus and method for encoding video data and an apparatus and method for decoding video data are provided. The encoding method includes: splitting a current picture into at least one maximum coding unit; determining a coded depth to output an encoding result by encoding at least one split region of the at least one maximum coding unit according to operating mode of coding tool, respectively, based on a relationship among a depth of at least one coding unit of the at least one maximum coding unit, a coding tool, and an operating mode, wherein the at least one split region is generated by hierarchically splitting the at least one maximum coding unit according to depths; and outputting a bitstream including encoded video data of the coded depth, information regarding a coded depth of at least one maximum coding unit, information regarding an encoding mode, and information regarding the relationship.
US08891630B2 Significance map encoding and decoding using partition set based context assignment
Methods of encoding and decoding for video data are describe in which significance maps are encoded and decoded using non-spatially-uniform partitioning of the map into parts, wherein the bit positions within each part are associated with a given context. Example partition sets and processes for selecting from amongst predetermined partition sets and communicating the selection to the decoder are described.
US08891626B1 Center of motion for encoding motion fields
A system and method for encoding and decoding a video is disclosed having a plurality of frames with spatially correspondent blocks comprised of pixels. The encoding method includes determining a motion field for a plurality of pixels in a first frame having a same direction of movement as each other, the motion field having a center of motion, at least one dimension defining a shape of the motion field and a motion vector, encoding the motion field into a bitstream, associating at least one block of the first frame with the motion field and encoding each block associated with the motion field into the bitstream without a separate motion vector. Motion fields can be reused across multiple frames, decreasing the number of bits spent to encode motion vectors.
US08891623B2 Method to derive at least one motion vector of a bi-predictive block in a current picture
In one embodiment, a method for a moving picture coding system to derive at least one motion vector of a bi-predictive block in a current picture from a motion vector of a first block in a first picture includes selecting, by the moving picture coding system, a list 1 motion vector of the first block in the first picture as a motion vector for deriving list 0 and list 1 motion vectors of the bi-predictive block if the first block only has the list 1 motion vector, the first picture being permitted to be located temporally before the current picture and permitted to be located temporally after the current picture and deriving the list 0 and list 1 motion vectors of the bi-predictive block by applying a bit operation to the selected motion vector, the bit operation including 8 bits right shift.
US08891622B2 Motion picture coding apparatus, motion picture coding method and computer readable information recording medium
A motion picture coding apparatus divides an image into plural blocks and codes the image; determines a coding mode to be used for each of the blocks; determines, for coefficients of each of the plural blocks coded in the determined coding mode, a position for which coefficients in the block are replaced by “0” based on rate information; determines whether a to-be-processed block is a first block for which referring to pixel values of an upward adjacent block is not allowed; changes, for coefficients of a block of DC components after orthogonal transformation or quantization in the block determined as the first block, the determined position to a position at which the number of coefficients to be replaced by “0” is reduced; and replaces coefficients of the block of DC components after orthogonal transformation or quantization in the block determined as the first block based on the changed position.
US08891619B2 Rate control model adaptation based on slice dependencies for video coding
Statistics for estimating quantization factors of a coding-unit type (e.g., B-coded or I-coded) pictures are determined from other, possibly different (e.g., P-coded) pictures, or previously coded coding-units. Bit rate and quality relationships between such coding-unit types may be used with the quantization parameters. Estimating bit rate and quality relationships between coding-unit types enables accurate rate control for pictures regardless of their coding-unit type. Bit rate and quality relationships between coding-unit types can be used with multiple rate control models to increase compression. Rate control parameters may be adjusted with statistics generated by a motion estimation and compensation framework. Rate control performance may be controlled in transcoding compressed bit streams.
US08891615B2 Quantization based on rate-distortion modeling for CABAC coders
This disclosure describes techniques for quantizing coefficients of a video block for a video coding process that supports context-based adaptive binary arithmetic coding (CABAC). A method may comprise generating a plurality of sets of quantized coefficients for the video block, wherein each of the sets of quantized coefficients is defined based on an assumption that a particular one of the coefficients of the video block corresponds to a last non-zero coefficient of the video block, estimating a plurality of costs associated with coding the video block via the CABAC, wherein the estimated costs are based respectively on different ones of the sets of quantized coefficients, and selecting a given one of the sets of quantized coefficients associated with a lowest cost.
US08891614B2 Method and system on chip (SoC) for adapting a runtime reconfigurable hardware to decode a video stream
A method and System on Chip (SoC) for adapting a runtime reconfigurable hardware to decode a video stream, wherein the video stream is of one of a plurality of video types is disclosed. The method includes determining a video type of the video stream and identifying at least one functional block of a set of functional blocks in the runtime reconfigurable hardware in response to determining the video type. A functional block of the set of functional blocks corresponds to a decoding sub function of the video type. Thereafter, the method configures the one or more functional block based on a plurality of configuration parameters of the video type. Further, the method decodes the video stream using the one or more functional blocks in response of configuring the one or more functional block.
US08891608B2 Method for performing localized multihypothesis prediction during video coding of a coding unit, and associated apparatus
A method for performing localized multihypothesis prediction during video coding of a coding unit includes processing the coding unit. More particularly, the step of processing the coding unit further includes: obtaining at least two sets of motion information derived from a set of coded units for multihypothesis motion compensation of the coding unit; and utilizing a linear combination of a plurality of pixel values derived from the at least two sets of motion information derived from the set of coded units as a predicted pixel value of the coding unit. An associated apparatus is also provided.
US08891606B2 Method and system for low complexity conjugate gradient based equalization in a wireless system
Methods and systems for processing signals in a receiver are disclosed herein and may include updating a plurality of filter taps utilizing at least one channel response vector and at least one correlation vector, for a plurality of received clusters, based on initialized values related to the at least one channel response vector and the at least one correlation vector. At least a portion of the received signal clusters may be filtered utilizing at least a portion of the updated plurality of filter taps. The update may be repeated whenever a specified signal-to-noise ratio (SNR) for the received signal clusters is reached. The initialized values may be updated during a plurality of iterations, and the update may be repeated whenever a specified number of the plurality of iterations is reached.
US08891602B1 Analyzing jitter with noise from the measurement environment
An apparatus and method for receiving a signal waveform representing a signal-under-test (SUT), and a noise waveform representing noise measured in the absence of the SUT. An environment waveform is derived from the noise waveform and the signal waveform, and a jitter spectrum is computed from the environment waveform. An environment spur is detected, where the environment spur includes a spur in the jitter spectrum of the environment waveform. A jitter spectrum of the signal waveform is computed, and one or more signal spurs are detected, where the one or more signal spurs include one or more spurs in the jitter spectrum of the signal waveform. A measure of jitter for the SUT is derived from the one or more signal spurs after reducing the presence of at least one of the one or more signal spurs in response to detecting the environment spur.
US08891600B2 Network device
A network device includes: a connector connected to a network; a receiving line connected to the connector; a transmitting line connected to the connector; a communication control unit configured to control communication with an external network device by receiving a signal from the network through the connector and the receiving line, and transmitting the signal to the network through the transmitting line and the connector; and a loop-back processing unit configured to loop back the signal transmitted through the receiving line, to the transmitting line when the communication control unit is in a power-off state or a standby state.
US08891597B1 Calibration for implicit transmit beamforming
In a beamforming method, one or more compensation factor sets are applied to antennas of a first communication device. A modulation and coding scheme (MCS) for communicating with a second communication device is selected while applying a first compensation factor set to the antennas of the first communication device. For each of the one or more compensation factor sets, (i) a steering matrix is developed based on a data unit received at the first communication device from the second communication device, (ii) one or more data units are transmitted from the first communication device to the second communication device while applying the steering matrix and the compensation factor set to the first plurality of antennas, and (iii) a channel performance indicator is determined based on the one or more data units. A compensation factor set to be used in subsequent beamforming operations is selected based on the channel performance indicator.
US08891588B1 On-demand medium to low transmission power channel switching in computer networks
In a multiple interface, low power and lossy network comprising a plurality of nodes, a low transmission power and medium transmission power topology are defined for the network and a channel-hopping schedule is defined for the devices operating in each topology. A sender determines that data is capable of being transmitted via a link on the low transmission power topology. The sender determines the transmission parameters for the transmission of the data over the link on the low transmission power topology and determines a low transmission power channel for transmission of the data. The sender transmits the determined channel and the transmission parameters to the receiver. The sender transmits the data via the determined channel in the low transmission power topology.
US08891585B2 Heating electrode assembly for crystal growth furnace
A heating electrode assembly for a crystal growth furnace includes: a heat insulation board unit that is disposed between a furnace wall and a heater, that includes a first surface facing the furnace wall and a second surface facing the heater, and that is formed with a hole extending through the first surface and the second surface; an electrode unit that includes an electricity input portion mounted to the furnace wall, a post portion disposed in the hole, and an abutment flange connecting the post portion and the heater; and an electrical insulating unit including a tubular sleeve that is disposed in the hole and that surrounds the post portion, and a pad that is clamped between the abutment flange and the second surface.
US08891584B2 Shaft high temperature continuous graphitizing furnace
The present invention provides a shaft high temperature continuous graphitizing furnace comprising a furnace body comprising a feeding inlet and a discharging outlet, an electrode pair, a cooling system and a discharging device; the furnace body is designed to be a shaft cylindrical structure; the electrode pair is provided within the furnace body and comprise an upper electrode and a lower electrode, the upper electrode is located below the feeding inlet, and an umbrella or cone table shape electric field having a lower cross section area greater than its upper cross section area arises between the upper electrode and eh lower electrode; and the cooling system is located between the lower electrode and the discharging outlet. For the shaft high temperature continuous graphitizing furnace of the present invention, a perpendicularly placed column electrode is used as the upper electrode, a horizontally placed circular hollow electrode is used as the lower electrode, an umbrella high temperature area is formed between the electrode pair, and the natural flow law of an object is used to have materials pass a high temperature graphitizing area and then discharged, which ensures the quality of the product.
US08891583B2 Refining and casting apparatus and method
An apparatus for casting metals by a nucleated casting technique to create a preform, the apparatus including a mold having a base and a side wall where the base can be moved relative to the side wall to withdraw the preform as it is being created. In various circumstances, portions of a droplet spray created by an atomizing nozzle, i.e., overspray, may accumulate on a top surface of the side wall and prevent or inhibit the preform from being moved relative to the side wall. The atomizing nozzle can be oriented such that the droplet spray passes over the top of the side wall to remelt and remove at least a portion of the overspray that has accumulated thereon. The mold can be rotated such that the overspray formed on a region of or on the entire perimeter of the top surface can pass through the droplet spray and can be removed from the side wall.
US08891581B2 Multi-wavelength semiconductor laser device
A multi-wavelength semiconductor laser device includes a block having a V-shaped groove with two side faces extending in a predetermined direction; and laser diodes with different light emission wavelengths mounted on the side faces of the groove in the block so that their laser beams are emitted in the predetermined direction.
US08891578B2 Optical semiconductor device having diffraction grating disposed on both sides of waveguide and its manufacture method
An active layer (18) is formed over a semiconductor substrate having a pair of facets (15A, 15B) mutually facing opposite directions. An upper cladding layer (19) is formed on the active layer, having a refractive index lower than that of the active layer. A diffraction grating (25) is disposed in the upper cladding layer on both sides of a distributed feedback region in a waveguide region (22), the waveguide region extending from one facet to the other of the semiconductor substrate. End regions (22B) are defined at both ends of the waveguide region and the distributed feedback region (22A) is disposed between the end regions. Low refractive index regions (26) are disposed in the upper cladding layer on both sides of each of the end regions of the waveguide region, the low refractive index regions having a refractive index lower than that of the upper cladding layer.
US08891577B2 System and method for a micro ring laser
A system and method for an electrically pumped laser system is disclosed. The system includes a silicon micro-ring resonator 405. A quantum well 412 formed of a III-V group semiconductor material is optically coupled with the micro-ring resonator 405 to provide optical gain. A trapezoidal shaped buffer 414 formed of a III-V group semiconductor material and doped with a first type of carrier is optically coupled to the quantum well 412. A ring electrode 410 is coupled to the trapezoidal shaped buffer 414. The trapezoidal shaped buffer 414 enables the ring electrode 410 to be substantially isolated from an optical mode of the micro-ring resonator 405.
US08891576B2 High SMSR unidirectional etched lasers and low back-reflection photonic device
Unidirectionality of lasers is enhanced by forming one or more etched gaps (78, 80) in the laser cavity. The gaps may be provided in any segment of a laser, such as any leg of a ring laser, or in one leg (62) of a V-shaped laser (60). A Brewster angle facet at the distal end of a photonic device coupled to the laser reduces back-reflection into the laser cavity. A distributed Bragg reflector is used at the output of a laser to enhance the side-mode suppression ratio of the laser.
US08891573B2 6.1 angstrom III-V and II-VI semiconductor platform
Use of semiconductor materials having a lattice constant of within +/−1.6% of 6.1 angstroms facilitates improved semiconductor device performance and new semiconductor structures, for example integration of field-effect devices and optoelectronic devices on a single wafer. High-mobility channels are enabled, improving device performance.
US08891572B2 Semiconductor laser device having reflecting and emitting surfaces
A semiconductor laser device has structure including: a semiconductor laser chip having an emission surface and a reflection surface which are opposing end surfaces of a resonator; and a photodiode for detecting light that exits from the reflection surface side, the photodiode being used in a wavelength band where a sensitivity of the photodiode rises as a wavelength lengthens, in which the emission surface has a first dielectric multilayer film formed thereon and the reflection surface has a second dielectric multilayer film formed thereon, and in which, when a wavelength at which a reflectance of the first dielectric multilayer film peaks is given as λf and a wavelength at which a reflectance of the second dielectric multilayer film peaks is given as λr, a relation λf<λr is satisfied.
US08891571B2 Vertical cavity surface emitting laser device, vertical cavity surface emitting laser array, optical scanning apparatus, image forming apparatus, optical transmission module and optical transmission system
A disclosed vertical cavity surface emitting laser device emits light orthogonally in relation to a substrate and includes a resonator structure including an active layer; and semiconductor multilayer reflectors disposed in such a manner as to sandwich the resonator structure between them and including a confinement structure which confines an injected current and transverse modes of oscillation light at the same time. The confinement structure has an oxidized region which surrounds a current passage region. The oxidized region is formed by oxidizing a part of a selective oxidation layer which includes aluminum and includes at least an oxide. The selective oxidation layer is at least 25 nm in thickness. The semiconductor multilayer reflectors include an optical confinement reducing section which reduces optical confinement in a transverse direction. The optical confinement reducing section is disposed on the substrate side in relation to the resonator structure.
US08891568B2 Laser diode device and method of manufacturing laser diode device
A laser diode device includes: a semiconductor substrate including a semi-polar surface, the semiconductor substrate being formed of a hexagonal III-nitride semiconductor; an epitaxial layer including a light emitting layer, the epitaxial layer being formed on the semi-polar surface of the semiconductor substrate, and the epitaxial layer including a ridge section; a first electrode formed on a top surface of the ridge section; an insulating layer covering the epitaxial layer in an adjacent region of the ridge section and a side surface of the ridge section, the insulating layer covering part or all of side surfaces of the first electrode continuously from the epitaxial layer; a pad electrode formed to cover a top surface of the first electrode and the insulating layer, the pad electrode being electrically connected to the first electrode; and a second electrode formed on a surface, of the semiconductor substrate, opposite to the semi-polar surface.
US08891563B2 Multi-chip OPS-laser
A two-chip OPS laser includes first and second OPS-chips each emitting the same fundamental wavelength in first and second resonators. The first and second resonators are interferometrically combined on a common path terminated by a common end-mirror. The interferometric combination provides for automatic wavelength-locking of the laser, which can eliminate the need for a separate wavelength selective device in the laser.
US08891561B2 50 Gb/s ethernet using serializer/deserializer lanes
Systems, devices, and methods of implementing 50 Gb/s Ethernet using serializer/deserializer lanes are disclosed. One such device includes circuitry operable to provide a media access control (MAC) interface. The MAC interface is associated with a port having a 50 Gb/s link rate. The device also includes circuitry operable to generate Ethernet frames from data received at the MAC interface and circuitry operable to distribute the Ethernet frames across a group of serializer/deserializer (SERDES) lanes associated with the port, the group having size N. The device also includes circuitry operable to transmit the distributed Ethernet frames on each of the SERDES lanes at a 50/N Gb/s rate.
US08891556B2 Signal for transmission in single-carrier communication system
An apparatus and method for generating a signal for transmission in a single-carrier communication system are disclosed. The apparatus comprises a reference signal inserter, which multiplexes data symbols with reference signal symbols in time domain to form a plurality of symbol blocks as the signal for transmission, wherein the plurality of symbol blocks include symbol blocks of a first type and symbol blocks of a second type, wherein each of the symbol blocks of the first type includes only data symbols, and wherein each of the symbol blocks of the second type includes both data symbols and reference signal symbols.
US08891554B2 Method for data transmission in an automation system using dynamic frame packing
A method for data transmission in an automation system from a second field device via a first field device to a receiver, wherein, at the first field device, a first data subframe is created, a second data frame is received from the second field device, and a first data frame including the first and the second data subframe is sent correctly-timed by Dynamic Frame Packing to the receiver. In the event the second data subframe is unable to be appended directly to the first data subframe at the latest after the correctly-timed sending of the first data subframe, the sending of the first data frame is shifted by a time value, where the time value is calculated so that immediately after the sending of the first data subframe, the second data subframe is able to be appended directly to the first data subframe.
US08891550B2 Platform independent configuration of multiple network services
Embodiments of the present invention address deficiencies of the art in respect to network services protocol implementation configuration and provide a method, system and computer program product for platform independent configuration of multiple network services protocol implementations. In one embodiment of the invention, a method for configuring a network services protocol implementation can include configuring a platform independent configuration for a network services protocol implementation. Thereafter, a target node can be selected to receive a deployment of the network services protocol implementation and the configured platform independent configuration can be transformed into a platform specific configuration for the target node. Finally, the transformed platform specific configuration can be deployed onto the target node.
US08891545B2 System and method for a thin-client terminal system supporting USB devices
Thin-client terminal systems allow computer systems to be shared by multiple computer users. With modern technology, the cost of implementing a thin-client terminal system can be very low. To improve thin-client terminal systems, a thin-client terminal system accepts user input data in a first serial interface format and transcodes the user input data into a second serial interface format for transmission to a server.
US08891541B2 Systems, methods and algorithms for named data network routing with path labeling
A method implemented in a computer system for routing at least one interest packet in a named data network including a plurality of nodes is provided. The method comprises: mapping, with the computer system, each of a plurality of names of a respective plurality of data objects to one of a plurality of path labels, wherein each path label uniquely identifies a path between a source node and a destination node; and providing, with the computer system, an interest packet having both the name of a requested data object and one of the path labels, wherein the path label provided with the interest packet points to the requested data object at the destination node of the path label provided with the interest packet.
US08891538B2 State synchronization of serial data link sessions connected across an IP network
In one embodiment, a router maintains a communication session between a local terminal unit and a remote terminal unit, the local terminal unit interconnected to the router over a local serial data link, and the remote terminal unit interconnected to the router over an Internet Protocol (IP) session via a remote router and a corresponding remote serial data link. The router may then monitor a state of the local serial data link, and communicates this state with the remote router over the IP session, as well as a remote state of the remote serial data link. The router may then correspondingly control the state of the local serial data link to match the remote state of the remote serial data link.
US08891533B2 Methods systems and apparatuses for dynamically tagging VLANs
Systems, mechanisms, apparatuses, and methods are disclosed for dynamically tagging VLANs. For example, in one embodiment such means include: means for receiving a packet having identified therein a source Media Access Control (MAC) address and a Virtual Local Area Network (VLAN) Identifier, wherein the VLAN identifier corresponds to a VLAN which is non-existent on a network switch; means for modifying the packet received to include two VLAN tags, a first VLAN tag corresponding to the VLAN identifier identified within the packet received and a second VLAN tag, distinct from the first; means for determining no forwarding database entry exists for the modified packet; and means for creating the VLAN on the network switch to handle received packets tagged with the VLAN identifier.
US08891526B2 Data communication method and data communication apparatus
A data communication method and a data communication apparatus are provided. The method mainly includes: receiving, by an adapter card, information elements sent by a first switching network board, in which a format of the information element is an information element format capable of being identified by the first switching network board; and performing, by the adapter card, format conversion on the information elements according to an information element format capable of being identified by a second switching network board, and sending the converted information elements to the second switching network board. In this manner, different types of switching network boards can be interconnected and communicate with each other, so as to implement data transmission between network devices having different structures.
US08891525B2 Fixed mobile convergence techniques for redundant alarm reporting
Alarm reporting systems and methods for reporting alarms to a central monitoring station using fixed mobile convergence (FMC) techniques. An alarm reporting system comprises a plurality of sensors, an alarm reporting module that receives alarm signals from the plurality of sensors, and a logic unit that generates an alarm message related to the alarm signal. The alarm reporting module further comprises at least two transceivers, the first of which is a wi-fi transceiver that communicates with a central monitoring station via a wireless access point further connected to an internet connection. The second transceiver is a cellular tranceiver that communicates with the central monitoring station via a cellular network further connected to an internet gateway. The second tranceiver provides redundancy in case the wireless access point or the first internet connection become unavailable.
US08891524B2 Method and apparatus of automatically providing registration information
An apparatus for, and method of, automatically providing network device warranty data to a destination process operating on a server remote from the apparatus are described. A process may comprise authorizing a source process to automatically upload warranty data to the destination process. The source process is then operable, on an automatic basis, to integrate device data stored in a first format into a standard format and transfer the integrated data to the destination process.
US08891522B2 Reliable, high-throughput, high-performance transport and routing mechanism for arbitrary data flows
The present invention leverages an existing content delivery network infrastructure to provide a system that enhances performance for any application that uses the Internet Protocol (IP) as its underlying transport mechanism. An overlay network comprises a set of edge nodes, intermediate nodes, and gateway nodes. This network provides optimized routing of IP packets. Internet application users can use the overlay to obtain improved performance during normal network conditions, to obtain or maintain good performance where normal default BGP routing would otherwise force the user over congested or poorly performing paths, or to enable the user to maintain communications to a target server application even during network outages.
US08891521B2 Triggering bandwidth reservation and priority remarking
In one embodiment, a reservation proxy monitors for received connectivity check messages or beginning-of-media-flow indication messages. When either type of message is observed, the reservation proxy requests resource allocation for a media flow associated with the received message. The amount of resource allocation requested may be coordinated by exchanging messages with a call controller or policy server for one of the endpoints of the media flow, or the amount of resource allocation may be identified within the received message.
US08891520B2 Scaling redundancy elimination middleboxes
A capability is provided for scaling Redundancy Elimination (RE) middleboxes. The RE middleboxes include an RE encoding middlebox and an RE decoding middlebox. The RE middleboxes may employ max-match-based RE techniques or chunk-match-based RE techniques. The RE middleboxes may utilize Distributed Hash Tables (DHTs) to maintain content stores, respectively. The RE middleboxes may be scaled for use with cloud applications (e.g., for use in transfer of data between a customer network and a cloud side, for use in transfer of data between two cloud sites, or the like).
US08891512B2 Method of handling a VoIP connection of a mobile device and related communication device
A method of handling a voice over internet protocol (VoIP) function of a mobile device in a wireless communication system is disclosed. The method comprises arranging a user interface in the mobile device, for a user of the mobile device to control the VoIP function via the user interface; and processing a requested data connection between the mobile device and a network of the wireless communication system according to the VoIP function, when the requested data connection is determined to be a VoIP connection.
US08891506B2 Method and apparatus for providing mobile IP service through a network address translation gateway
Method and apparatus for providing Mobile internet protocol (IP) service through a network address translation gateway. In one example, a gateway between a local area network (LAN) and a wide area network (WAN) is provided. A foreign agent (FA) module is configured to advertise a care-of address (CoA) on the LAN and process registration and mobile IP communication traffic on the LAN and the WAN side of the gateway. A control module is configured to identify the registration and the mobile IP communication traffic on the LAN and the WAN. The control module sends mobile IP traffic to the FA and other traffic to a network address translation (NAT) module. In this manner, network address translation of mobile IP traffic is advantageously omitted. This allows the IP-in-IP tunnels used by mobile IP to pass through the gateway.
US08891505B2 Wireless communication system and communication method for wireless communication system
A mobile device includes a transmitting unit that, each time an ON operation of a switch in a first mode is performed, transmits a wireless signal corresponding to the first mode ON operation by changing a frequency band among three or more frequency bands and that, when an ON operation of the switch in a second mode is performed, transmits a wireless signal, corresponding to the second mode ON operation, in the frequency band selected at that time. The transmitting unit includes a frequency band computing unit that selects one of the three or more frequency bands through a computation for changing a communication environment when the second mode ON operation of the switch is repeatedly performed. A receiver of the in-vehicle device receives a wireless signal transmitted from the transmitting unit and recognizes command information allocated in advance in correspondence with each ON operation mode of the switch.
US08891501B2 Method, apparatus, and system for routing user plane data in mobile network
A method, an apparatus, and a system for routing user plane data in a mobile network are disclosed in the embodiments of the present invention, relate to the field of communications, and solve the problem that transmission delay of packet service data is relatively great in the prior art. The method for routing user plane data in the mobile network includes that: an access network bearer and a PDN gateway bearer of a user equipment are directly interconnected through a tunnel established between an access network and a PDN gateway; and data between a Home NodeB, a Home NodeB Gateway or a macro network access network and the PDN gateway is directly routed through the tunnel. The method, the apparatus, and the system can be applied to a mobile communication system.
US08891498B2 Method for wireless network re-selection in a plurality of networks environment
The present invention discloses method for wireless network re-selection in a plurality of networks environment, comprising: when a user terminal changes from a current serving network to another network, sending a network re-selection request that includes a network information to a network side; establishing a connection of said another network if said another network indicated in said network re-selection request is different from said current serving network. By applying this method, the user terminal can re-select another network when already accessed to a network.
US08891497B1 Method and apparatus for coordinating a wireless PAN network and a wireless LAN network
Devices of a personal area network (PAN) use a wireless medium that is shared with a wireless local area network (WLAN) using power-efficient methods. PAN devices power up as needed to listen for frames. Once a PAN device determines that a frame is not for a PAN device, the PAN device can return to a power down state. In some cases, where a PAN coordinator determines that the wireless medium is congested, setting a PAN device backoff period during which the PAN device can remain in a power down state for an additional time period. Where collisions of PAN device frames are detected, differential backoffs for colliding PAN devices can be assigned. Where the PAN coordinator device needs to send precursor frames into the wireless medium prior to communications with the PAN device, it can arrange for PAN devices to remain powered down during at least a part of the time period during which a precursor frame is being transmitted.
US08891496B2 System and method for improved control channel transmit diversity
A method for providing transmit diversity in wireless network communications is presented. An indication of a slot structure is received. The slot structure identifies at least a first location of a reference signal within a slot. A first reference signal is transmitted within a first slot using a first antenna. A location of the first reference signal within the first slot is determined by the slot structure. A second reference signal is transmitted within the first slot using a second antenna. A location of the second reference signal within the first slot is determined by the slot structure. In some cases, the slot structure identifies a second location of a reference signal within the slot structure. The second location being offset from the first location, and a third reference signal is transmitted within the first slot at the second location on the first antenna.
US08891495B2 Process for slot synchronization of the P-SCH sequence in a UMTS communication system and a receiver for the same
A Process for achieving slot synchronization of the P-SCH sequence in a UMTS communication system, involving the step of receiving (41) said signal including a synchronization sequence (P-SCH); performing a correlation (42) of each received sample with a known synchronization sequence (P-SCH) in order to generate a correlation profile; determining (43) the level of noise and computing a first threshold; suppressing (44) any peaks within said correlation profile having a magnitude inferior to said first threshold; detecting (45) the persistent local maximum peaks over a period of N slots; applying a predetermined mask positioned with respect to said persistent peaks and associated to at least one second threshold value distinctive from said first threshold.
US08891494B2 Method and apparatus for the use of multiple-input, multiple output (MIMO) systems for multi-packet reception (MPR) in a distributed time slot assignment protocol
A method of multiple packet reception (MPR) using distributed time slot assignment (TDSA) in a multi-user network where receivers can detect two packets at the same time includes the steps of requesting information on slot assignment in a contention area, setting a frame length and acquiring a the slot assignment, selecting the assigned slot, and announcing and confirming information about the frame length and the assigned slot. The step of requesting information on slot assignment, setting a frame length and acquiring a slot assignment, and selecting the assigned slot are performed in a network where receivers can detect two packets at the same time, where time slots are assigned to nodes instead of links, where one-hop neighbors are assigned to different time slots since they may form a link together, while sharing one time slot with one of the two-hop neighbors in a non-interfering assignment.
US08891493B2 Method and device for assigning reference signal sequences in mobile communications system
A reference signal sequence assignment method and device are provided by which the influence of inter-cell interference can be reduced and the number of usable cyclic shifted sequences per sector can be increased. In a mobile communications system with a structure including multiple cells each including multiple sectors, a sequence assignment method is employed by which pseudo-orthogonal sequences used for reference signals are assigned to cells or sectors. According to this method, the multiple pseudo-orthogonal sequences are assigned to cells or sectors by using multiple repetition patterns.
US08891492B1 Power save mechanisms for dynamic ad-hoc networks
Techniques for establishing a dynamic ad-hoc wireless network are disclosed. A node transitions between wake and sleep modes during periods defined as beacon intervals. Before a network connection is established and while it is awake, the node transmits network connection request and also listens for network activity. If a beacon or response message is not detected while the node is listening, the node enters sleep mode and thereby conserves power. The node optionally changes the duration of its detection period and/or the time at which it listens for network activity relative to the start of each beacon interval. Information elements are optionally included with transmitted beacons or response messages.
US08891484B2 Facilitating method for handover of a mobile communication device
A method, performed in a long term evolution (LTE) communications network, of facilitating handover of a mobile communication device from a source node to a target node includes receiving, in the target node, downlink user data packets forwarded from the source node via a first interface, receiving, in the target node, downlink user packets from an external source via a second interface, buffering the received user data packets during handover prior to sending to the mobile communication device, ordering the downlink data packets in the target node based on the interface from which the data packets are received, and sending the ordered downlink data packets from the target node to the mobile communication device after completion of handover from the source node to the target node.
US08891483B2 Wireless gateway supporting a plurality of networks
In accordance with various aspects of the disclosure, systems and methods are illustrated for an apparatus comprising a modem component, a wireless communications component, at least one processor, and at least one tangible electronic memory storing data and numerous computer-executable modules to enable wireless hotspots with multiple network identifiers. Examples of at least some of the computer-executable modules includes, but is not limited to an input module, network identifier module, session management module, network management module, automatic location management module, authentication module, bandwidth negotiation module, billing interface module, and activity-based location module.
US08891479B2 Method for transmitting control information and apparatus therefor
The present invention relates to a wireless communication system. Specifically, the present invention relates to a method for transmitting uplink control information and an apparatus therefore, which includes the steps of selecting one uplink control channel resource corresponding to a plurality of HARQ-ACKs from a plurality of uplink control channel resources, and transmitting bit values corresponding to the plurality of HARQ-ACKs using the selected uplink control channel resource.
US08891478B2 Mobile terminal apparatus and radio communication method
The present invention provides a mobile terminal apparatus and a radio communication method which can feed back precoders that are essential to generate precoding weights in downlink MIMO transmission. With the present invention, in the first mode to feed back subband second PMIs that are selected per bandwidth part through a physical uplink control channel, a subband second PMI and a wideband second PMI are selected from a second codebook, the subband second PMI and the wideband second PMI are multiplexed on a subframe, and the multiplex signals is transmitted to a radio base station apparatus through the above physical uplink control channel.
US08891475B2 WLAN service method and WLAN system
Provided is a method for WLAN service performed by an access point (AP) in a WLAN system including the AP and a plurality of stations (STAs) each of which can associate with the AP, the method comprising: dividing frequency bandwidth of available channel into a plurality of frequency-selective subchannels; receiving, from at least some STAs (first STAs) among the plurality of STAs, CRQ (Contention Resolution reQuest) frame including a signature of the first STAs through at least some of the subchannels, the signature identifying the first STAs; identifying the first STAs using the received CRQ frame; estimating uplink channel quality of the first STAs using the received CRQ frame; allocating subchannels for each of the first STAs; and broadcasting result of subchannel allocation using CRP (Contention Resolution rePly) frame.
US08891472B2 Method and apparatus for reporting channel state information in a wireless communication system
A method and apparatus are provided for reporting Channel State Information (CSI) for operation of a network, when a Precoding Matrix Indicator (PMI) and a Channel Quality Indicator (CQI) cannot be calculated. The method includes reporting a first Precoding Matrix Indicator (PMI); detecting that a Rank Indicator (RI) is changed before a second PMI is reported, the RI being changed within an RI group; calculating the second PMI and a Channel Quality Indicator (CQI) using the first PMI; and reporting the second PMI and the CQI.
US08891471B2 Wireless communication device, and wireless communication method
Disclosed are a wireless communication method and device which can maintain frequency scheduling flexibility and improve system throughput performance. A Walsh sequence number determination unit (108) acquires Walsh sequence numbers used in each cluster according to a bandwidth notification order indicated by a plurality of RIVs, on the basis of associations between the bandwidth notification order indicated by the plurality of RIVs and Walsh sequence numbers used in each cluster. Furthermore, the Walsh sequence number determination unit (108) independently sets the acquired Walsh sequence number to each cluster multiplexed between two different terminals in the same bandwidth.
US08891470B2 Method and apparatus for feedback transmission in a wireless communication system
The present invention provides a method and an apparatus for feedback transmission in a wireless communication system. A terminal receives downlink control information from a base station and transmits to the base station event-driven feedback information over a first feedback channel. The downlink control information includes information about a short-term feedback period that corresponds to a short period of time for transmitting feedback information and information about a long-term feedback period that corresponds to a long period of time for transmitting feedback information, and the event-driven feedback information is transmitted on the basis of the long-term feedback period.
US08891466B2 Method of handling soft buffer for carrier aggregation and related communication device
A method of handling a soft buffer of a mobile device in a wireless communication system is disclosed. The mobile device is configured a plurality of component carriers (CCs) by a network of the wireless communication system. The plurality of CCs comprise a primary CC (PCC) and at least one secondary CC (SCC). The method comprises determining a plurality of weightings corresponding to the plurality of CCs according to an indication; determining a plurality of sizes of a plurality of sub-blocks according to the plurality of weightings; and dividing the soft buffer into the plurality of sub-blocks according to the plurality of sizes of the plurality of sub-blocks, to arrange a plurality of hybrid automatic repeat request (HARQ) processes of the plurality of CCs in the plurality of sub-blocks.
US08891465B2 Digital broadcasting transmitter, digital broadcasting receiver, and methods for configuring and processing a stream for same
The method for transporting a digital broadcast stream includes: receiving a transport stream, including mobile broadcast data that is placed in at least a part of a normal data area allocated to normal data and signaling data that includes an FIC chunk header with a variable length; decoding the signaling data; and decoding the mobile data using the decoded signaling data.
US08891462B2 Methods and apparatuses for downlink channel resource assignment
Certain aspects of the present disclosure provide techniques for determining resources for transmission of acknowledgement messages to a user equipment (UE). The techniques involve receiving a plurality of codewords from the UE via an uplink component carrier, and determining at least first and second index pairs identifying resources of a downlink channel to be used for transmitting acknowledgement messages for the received codewords. The first index pair is determined based on a first set of parameters, and the second index pair is determined based on the first set of parameters and a second set of one or more parameters. At least one of the parameters in the second set is a fixed value.
US08891459B2 Spectrum interpretation in a heterogenous network
Certain aspects of the present disclosure provide for the application of extension carriers and carrier segments in the context of heterogeneous networks. As described herein, different parts of the spectrum may be interpreted differently by different type of nodes.
US08891454B2 Method, apparatus and system for sending messages
The present invention discloses a method for sending messages, including: acquiring a destination region to which an outgoing message is to be sent; determining a first base station identifier corresponding to the destination region, and acquiring a first unique user identifier corresponding to the first base station identifier; and sending the outgoing message to a mobile terminal of a first user, where the first user is a user identified by the first unique user identifier. The present invention also discloses an apparatus for sending messages, including: a destination region acquiring module; a user identifier determining module; and an outgoing message sending module. According to the embodiments of the present invention, a first base station identifier corresponding to the destination region is determined, a first unique user identifier corresponding to the first base station identifier is acquired, and the outgoing message is sent to the a corresponding first user, such that a server is capable of acquiring information of actual geographical location of a mobile terminal user. This improves precision in sending messages to mobile terminal users according to regions, and enhances effects of information release.
US08891452B2 Communication device and communication method
A communication device and a communication method capable of suppressing an increase of bits used for a request to send a reference signal and flexibly setting a resource used for sending a reference signal. In a base station (100), a transmission processing unit (104) transmits, in one of a plurality of formats, control information containing a request to send a sounding reference signal (A-SRS), and a reception processing unit (108) receives the transmitted A-SRS using the resource specified by the format of the transmitted control information. Then, the plurality of formats is associated with each different SRS resource by a setting unit (101).
US08891449B2 Communication system and communication controlling method
A communication method in LIPA/SIPTO architecture is provided which, when a user equipment (UE) is to connect from a serving area to an external network, allows re-selection of an optimal gateway. The communication method allows selecting a gateway apparatus physically or topologically close to a site, where the user equipment is attached.
US08891447B2 Method and a mobile terminal for roaming in a mobile network
The invention comprises a method for a mobile terminal (1010) to register to a generic access node controller, GANC (1030) in a Circuit Switched Services over Long Term Evolution using Generic Access Network, CSOLTEVGAN architecture. In current procedures for roaming, the mobile terminal (1010) receives an address to a serving GANC (1030) in the same VPLMN from a default GANC (1050) in the HPLMN, This procedure results in a lot of signaling towards the default GANC (1050). The current invention overcomes this problem by adapting the mobile terminal (1010) to determine system information about the E-UTRAN cell by which the mobile terminal (1010) is served and to build a FQDN string based on the system information. This FQDN string is sent to a DNS server (1060) which resolves it to an IP address to a GANC (1030) located in the same VPLMN as the mobile terminal (1010). This IP address is used by the mobile terminal (1010) to connect and register itself to the GANC (1030).
US08891446B2 Power control with cross-subframe assignment
A method includes receiving a cross-subframe assignment in a first subframe, targeting a second subframe in which a transmission power control (TPC) command is to be applied. The method may also include adjusting transmit power in accordance with the TPC command during a third subframe, a predefined number of subframes after the first subframe. Another method includes receiving a cross-subframe assignment in a first subframe. The cross-subframe assignment targets a second subframe in which a first TPC command is to be applied. The method may also include receiving a nominal grant in the first subframe that targets an identified subframe to which a second TPC command is to be applied. The method may also include adjusting the transmit power according to the first TPC command, the second TPC command or a function of the first TPC command and the second TPC command during the second subframe or the identified subframe.
US08891445B2 Base station apparatus and communication control method
A base station apparatus includes a measurement gap assignment unit configured to assign a user equipment a measurement gap for measuring received quality for a frequency different from a frequency assigned to the user equipment and a DRX duration assignment unit configured to assign a DRX controlled user equipment a DRX duration. The measurement gap assignment unit sets the measurement gap to except the DRX duration and a duration for retransmitting a downlink signal.
US08891441B2 L2 tunneling-based low latency single radio handoffs
An example of this invention provides low latency handovers between Mobile WiMAX and 2G/3G/LTE networks with only a single radio transmitting at any given point in time, by establishing L2 tunnel between 3GPP MME and WiMAX ASN for control plane signaling to perform pre-registration, pre-authentication and context transfer to the target network, while UE maintains its connection to the source network, and by setting up bearer path for packet forwarding between Servicing Gateway and WiMAX ASN. An example of this invention uses a virtual eNB to facilitate low latency L2 handoffs to legacy 2G/3G networks with minimum impact to SGSN and MME.
US08891440B2 Transmission of control information after optional selection and compression within a radio communication network
A remote transmission station (S1), for a transmission installation (ID) in a radio communication network with a control unit (MS) for transmission stations with selected administration protocol, comprises controlled units (E11, E21) and is located in a part of the network separated from the control unit (MS) by a transmission connection (SAT) within the installation (ID). The station (S1) further comprises control means (MG) for obtaining control information statuses relating to the controlled units (E) and processing means (MT) for i) storage of the states previously obtained by the control means (MG), ii) for comparison of the currently obtained states with the states previously stored and to determine each change in state and iii) to generate messages comprising each determined change in state for transmission thereof to the control unit (MS) by the connection (SAT).
US08891438B2 Packet-data network and methods for RAN-agnostic multimedia content distribution
Embodiments of a packet-data network (PDN) and methods for RAN-agnostic multimedia content distribution are generally described herein. In some embodiments, the PDN may dynamically distribute IP packets of a single service flow to two or more RANs associated with two or more available radio links for subsequent transmission to a user terminal when each of the two or more available radio links meet the QoS requirements of the single service flow.
US08891434B2 Efficient control signaling over shared communication channels with wide dynamic range
Embodiments provide methods, apparatuses, and systems for efficient control signaling over shared communication channels with wide dynamic range. Some embodiments includes a gateway configured to encode and to transmit multiple physical layer headers, including a first physical layer header and a second physical layer header. The first physical layer header may span a first length and represent a first modcode; the second physical layer header may span a second length and represent a second modcode. The second length may be longer than the first length. Embodiments may include multiple terminals in wireless communication with the gateway via satellite, including a first terminal configured to decode the first physical layer header and to determine the first modcode. Embodiments may include a second terminal configured to decode the second physical layer header and determine the second modcode.
US08891433B2 Mobile communication system and operation method in mobile communication
A mobile communication system includes: a base station configured to form a cell and transmit a downlink signal which has been spread with a downlink scrambling code, toward the cell; a mobile station connected with the base station by radio when the mobile station is in the cell, and configured to communicate with a counter side station through the base station; and a relay station configured to receive the downlink signal, generate a limitation downlink signal showing a limitation area in which a function of the mobile station is limited, based on the downlink signal, and transmit the limitation downlink signal which has been spread with a specific scrambling code different from the downlink scrambling code, toward the limitation area. The downlink signal contains a base station peripheral cell list showing a scrambling code used in another base station on a periphery of the base station. The relay station determines the specific scrambling code based on the base station peripheral cell list when receiving the downlink signal.
US08891432B2 Routing method, routing system, mobile node, home agent, and home base station
Disclosed in a technique for registering, with a home agent, a routing rule for specifying packets destined to a second address generated from a home prefix as well as a home address and/or flow destination interfaces without increasing the number of messages. According to this technique, when a UE 10 is communicating (flow 1 and flow 2) with a CN 17 using the HoA, a routing rule indicating, for example, that flow 1 of packets destined to a HNP address is forwarded to a 3GPP interface IF1 and flow 2 of packets destined to the HNP address is forwarded to a WLAN interface IF2 is registered with a P-GW 13 through a routing rule registration message 21 such as a BU message at the time of starting simultaneous connections of the interfaces IF1 and IF2.
US08891429B2 Method and apparatus for determining number of idle state terminals and method for controlling data transmission using the same
Disclosed are a method and apparatus for determining the number of idle state terminals that determines the number of terminals in an idle state and controls data transmission for a multicast or broadcast service (MBS), and a method of controlling data transmission. The method of determining the number of idle state terminals in the MBS according to the present invention includes: transmitting, by a transmitter, a base station signal for verifying the number of idle state terminals; determining whether a radio terminal signal transmitted from an idle state terminal using the base station signal is present, or a the number of radio terminal signal types; and determining the number of idle state terminals based on whether the radio terminal signal is present or the number of radio terminal signal types.
US08891428B2 Structure of an efficient relay medium access control protocol data unit in a broadband wireless access system, and data transmission method using same
A broadband wireless access system including a relay station and a structure of a relay medium access control (MAC) protocol data unit (PDU) are disclosed. A method in which a base station (ABS) transmits data for a plurality of mobile stations (AMSs) to a relay station (ARS) in a broadband wireless access system includes generating second transmission unit data using a plurality of first transmission unit data oriented toward the plurality of mobile stations and using mobile station identifier information for indicating mobile stations to which each of the plurality of first transmission data unit data is to be transmitted and transmitting the second transmission unit data to the relay station.
US08891427B2 Method and a system for providing MBMS counting
A method and a system for implementing a MBMS counting in a wireless communication network environment, wherein a plurality of User Equipments and at least one Radio Network Controller are located in the wireless communication network. The method comprises: confirming a counting response from the UE by means of sending a first message containing a Service ID list and a counting sequence number (CSN) to the UE when the CRNC receives a connection request from the UE; storing the CSN in the UE and starting a timer Tcsn configured in the UE when the UE receives the first message; not responding to a counting when a further CSN and a further Service ID list in a further message received from the CRNC are the same as the CSN and the Service ID list stored in UE and the timer Tcsn does not expire; starting a new counting response by responding to the counting and stopping the timer Tcsn when either the further CSN or the Service ID list in the further message is distinguishing from the CSN and the Service ID list stored in UE and when the timer Tcsn does not expire. According to the method and system of the present invention, the UTRAN radio resource is saved and the UEs consume less power. Meanwhile, the interferences to other users caused by the RRC connection can be avoided.
US08891420B2 Fusion of cellular and non-cellular communications
A method for wireless communications, includes determining capacity of a non-cellular wireless link associated with a wireless broadcast area, determining congestion of a cellular link associated with the wireless broadcast area, determining a sublayer of a protocol of the cellular link based on the determined non-cellular wireless capacity and the determined congestion, dividing cellular data to be sent between a wireless device and a base station using the protocol of the cellular link into protocol data units of the sublayer, encapsulating the protocol data units of the sublayer into transmission units of the non-cellular link, and sending the resulting transmission units of the non-cellular wireless link.
US08891418B2 Uplink resynchronization for use in communication systems
A method and apparatus for reusing an uplink control channel configuration associated with an uplink control channel, the method comprising the steps of, at a user agent, receiving an uplink control channel resource configuration assigned by an access device, transmitting to the access device using the control channel resources associated with the received uplink control channel resource configuration and, after a time alignment timer expires, retaining the uplink control channel resource configuration.
US08891412B2 Circuit configuration for a mobile radio device and method for operating the same
A circuit arrangement for a mobile radio device includes a first transmission path for a first communication system with TDD duplex operation and a second transmission path for a second communication system with FDD duplex operation. The first transmission path contains a first transmission filter and the second transmission path contains a first duplexer. The first and second communication systems use transmission frequency bands that are arranged within the same octave. A transmitted signal from the first communication system can be routed switchably and thus either via the first or the second transmission path.
US08891411B2 System and method for a conference foyer
Disclosed are systems, methods, and non-transitory computer-readable storage media for implementing a conference foyer for conferencing. The system receives a request to join a conference call that is hosted on a specific conference server. The system receives the request via a call from a caller using a specific phone number. The system is a back-to-back user agent configured to transfer requests to one or more SIP-based conference servers. Based on the request, the system identifies a specific conference server hosting the requested conference. The system uses a conference code included in the request to identify the specific conference server hosting the conference call. The system then transfers the call to the specific conference server, which can join the call to the conference requested by the caller. This approach provides a flexible, efficient, and scalable way to increase the number of conference calls associated with a specific phone number.
US08891399B2 Method of reducing intercell interference in wireless communication system and apparatus thereof
A method for transmitting a downlink signal through coordinated beamforming with a neighboring cell at a serving cell includes transmitting first subframe information for designating one or more subframes to the neighboring cell, transmitting first Precoding Matrix Index (PMI) restriction related information including one or more PMIs to a User Equipment (UE) of the serving cell, the PMIs forming a beam so that interference affecting the neighboring cell in the one or more subframes has a constant characteristic, receiving first Channel State Information (CSI) reporting measured in the one or more subframes based on the first PMI restriction related information from the UE of the serving cell, and transmitting a downlink signal to the UE of the serving cell based on the first CSI reporting, the neighboring cell receiving CSI reporting corresponding to the neighboring cell, measured by the UE of the neighboring cell in the one or more subframes.
US08891397B2 Lawful interception in a mobile data network with data offload at the basestation
Lawful interception (LI) is supported on a flat mobile data network with breakout services at the basestation. A first service mechanism at the basestation is prevented from breaking out services for subscribers that are part of LI. A second service mechanism in the core network maintains a subscriber list of subscribers that are subject to LI. In response to a PDP context activation by a subscriber on the list, the second service mechanism does not supply PDP context information to the first service mechanism for data breakout thus preventing breakout for the subscriber subject to lawful interception.
US08891392B2 Dynamic latency analysis system
An automated method for analyzing a plurality of network messages received by a network testing device is disclosed. The method may comprise, during a current window of time, receiving from a target network device a network message associated with an original network message determining a latency value for the received network message comparing the determined latency value with the threshold latency value; and incrementing either the first counter or the second counter based on the comparison of the determined latency value with a threshold latency value. The method may further comprise, at the end of the current window of time, storing the first and second counter values resulting from the analysis of the plurality of original network messages.
US08891387B2 UE based conditional enabling of ULTD
In a communication system, user equipment (UE) conditionally performs uplink transmit diversity (ULTD) either by Switched Antenna Transmit Diversity (SATD) or Beamforming Transmit Diversity (BFTD) using a first antenna and a second antenna. Either a serving node or the UE determines that uplink transmit diversity is conditionally authorized. Either a serving node or the UE measures a value. The UE transmits using ULTD in response to determining that an enabling condition based on the value is satisfied. The UE can also disable uplink transmit diversity in response to determining that a disabling condition based on the value is satisfied. The disabling condition comprises a disabling threshold that equals the enabling condition comprising an enabling threshold with a threshold adjustment for hysteresis.
US08891386B2 Method of transmitting data, corresponding systems and computer program product therefor
A method of transmitting signals from a base station towards user terminals in a cellular communication system. The method includes generating diversity signals, wherein at least one of the diversity signals is subjected to a selectively variable RF phase shift. Specifically, a set of radio link quality indicators is determined at the base station, wherein each radio link quality indicator is representative of the quality of the radio link between the base station and a respective one of the user terminals. The set of radio link quality indicators is used to generate an aggregated radio quality indicator, which in turn is used to selectively vary the variable RF phase shift. For example, the phase shift may be selected, which optimizes the aggregated radio quality indicator.
US08891384B2 Circuit emulation service for carrying time division multiplexed SCADA traffic
Embodiments of the invention employ specially adapted P2MP and MP2P transmission techniques to communicate traffic of a TDM based SCADA system over an IP/MPLS based network. Advantageously, by specially adapting P2MP and MP2P transmission techniques to carry TDM based SCADA traffic over an IP/MPLS network, an existing TDM based SCADA system can be migrated to an IP/MPLS network and operated in an easy to manage and bandwidth efficient manner as compared to a solution that employs point-to-point connections between a SCADA master node and subsystems over an IP/MPLS network. Furthermore, since TDM based SCADA equipment would not need to be replaced with IP based SCADA equipment in such a migration, significant equipment and installation costs associated with such replacement can be avoided.
US08891382B2 Impairment aware path computation element method and system
The disclosure includes an apparatus comprising: a path computation element (PCE) comprising a processor configured to: receive a path computation element protocol (PCEP) path computation request from a path computation client (PCC), wherein the path computation request comprises an impairment validation request that directs the PCE to perform an impairment validation of a network path; after receiving the path computation request, compute a network path; and perform an impairment validation of the network path specified by the impairment validation request. In another embodiment, the disclosure includes a method comprising: sending, by a PCC a PCEP path computation request to a PCE, wherein the request directs the PCE to perform routing and wavelength assignment (RWA) and a first impairment validation of a network path, wherein the request comprises a type of signal quality of the network path which indicates the first type of impairment validation to be performed.
US08891381B2 Path testing and switching
A method may include forming a first path from a first node to a second node and transmitting data via the first path. The method also includes measuring a performance parameter associated with transmitting data via the first path and determining whether the measured performance parameter meet a required performance parameter. The method also includes sending a notification to a customer associated with the first path when the measured performance parameter does not meet the required performance parameter, where the notification indicates that the first path is unavailable.
US08891378B2 Method and system for hybrid automatic repeat request operation for uplink coordinated multi-point signaling
A method and system for hybrid automatic repeat request operation for uplink coordinated multi-point signaling, the method in one embodiment sending a data packet from a user equipment to a plurality of network elements; waiting for a control indication from at least one of the plurality of network element; and retransmitting the data packet to the plurality of network elements if the control indication specifies retransmission is required.
US08891377B2 Packet receiving and transmitting method
An embodiment of the invention provides a method of receiving packets from a transmitting station at a receiving station in a mobile communication system. The packet receiving method includes receiving a radio resource including a data packet and a packet indicator related to the data packet, identifying the packet indicator, and processing the data packet according to the content of the packet indicator. Another embodiment of the invention provides a method of transmitting packets from a transmitting station to a receiving station in a mobile communication system. The packet transmitting method includes receiving a response signal of a first data packet from the receiving station, allocating a second data packet to a radio resource according to the response signal, allocating a packet indicator related to the second data packet to the radio resource, and transmitting the second data packet and the packet indicator to the receiving station.
US08891376B1 Quantized Congestion Notification—defense mode choice extension for the alternate priority of congestion points
A method, computer program product and computer system to extend Quantized Congestion Notification protocol to receive a signal to activate Quantized Congestion Notification with a hybrid congestion notification control choice, the signal additionally including an alternate priority value. The per-port per-priority protocol variables and per-device per-Congestion-Notification-Priority-Value protocol variables are set to automatically assign a defense mode. The per-port per-priority protocol variables and a per-device per-Congestion-Notification-Priority-Value protocol variables are set to manually assign an alternate priority value.
US08891373B2 System and method for synchronizing quality of service in a wireless network environment
A method is provided in one example embodiment and includes receiving a plurality of status signals, for a plurality of radio links, at a microwave device; detecting a bandwidth anomaly based on the status signals; and communicating a quality of service (QoS) control signal, which is based on the bandwidth anomaly, to a gateway coupled to at least one of the radio links.
US08891372B2 Application data flow management in an IP network
A method for serving an aggregate flow in a communication network node includes a plurality of individual flows. The method includes identifying in the aggregate flow, based on serving resources allocated to the network node, individual flows that may be served without substantial detriment to perceived performance, and serving the identified individual flows with priority with respect to the remaining individual flows in the aggregate flow. The method allows the presence of individual flows that may not be served without substantial detriment to perceived performance due to shortage of serving resources to be notified to an external control entity.
US08891369B2 Network node and method of operating a network node
Network node comprising input equipment, switching equipment and output equipment, the input equipment is arranged to be capable of packetizing time division multiplexed (TDM) traffic flows, the switching equipment is arranged to be capable of routing the packetized data from the input equipment to the output equipment, and the output equipment is arranged to be capable of reassembling the flows into time division multiplexed format, wherein the input equipment is also arranged to be capable of causing the data frequency of the packetized data sent to the switching equipment to be substantially equal to a predetermined data frequency.
US08891368B2 Presentation of a selected port
Back pressure is mapped within a network, and primary bottlenecks are distinguished from dependent bottlenecks. Further, the presently disclosed technology is capable of performing network healing operations designed to reduce the data load on primary bottlenecks while ignoring dependent bottlenecks. Still further, the presently disclosed technology teaches identifying and/or suggesting a switch port for adding a node to the network. More specifically, various implementations analyze traffic load and back pressure in a network, identify primary and dependent bottlenecks, resolve the primary bottlenecks, collect new node parameters, and/or select a switch port for the new node. Further, a command can be sent to a selected switch to activate an indicator on the selected port. New node parameters may include new node type, maximum load, minimum load, time of maximum load, time of minimum load and type of data associated with the new node.
US08891361B2 Method of transfer of a call connection connecting a telecommunications base station and a mobile user terminal between dedicated and shared channels, and a corresponding telecommunications system
A method is provided of transfer of a call connection connecting a telecommunications base station and a mobile user terminal between dedicated channels in both directions therebetween and shared channels in both directions therebetween. The transfer is made dependent upon the amount of data buffered at the base station and the user terminal for transmission therebetween and/or the rate that data arrives at the base station and user terminal for transmission therebetween. The transfer is also dependent upon the value of a measured parameter of the signals between the base station and the user terminal, the parameter being signal attenuation or propagation delay.
US08891359B2 Selective link aggregation in a virtualized environment
A method for selective link aggregation in a virtualized data processing environment is provided in the illustrative embodiments. A data packet is received at a switch. An identifier associated with the data packet is determined. The identifier corresponds to a logical partition in a logical partitioned data processing system. A lookup is performed in a data structure to determine a set of ports associated with the identifier. The set of ports is retrieved from the data structure. A port is selected from the set of ports and the data packet is transmitted from the port to the logical partition.
US08891358B2 Method for application broadcast forwarding for routers running redundancy protocols
A method for application broadcast forwarding for routers running redundancy protocols in a network is provided. The network includes a first router running at least one program instance of a redundancy protocol at one interface, and a second router running at least one program instance of the redundancy protocol at one interface. A relay agent is enabled on both the first and second routers. The method includes, for each router, determining at least one preference ID for the router, determining a broadcast ID of each incoming broadcast packet, matching the broadcast ID of the incoming broadcast packet with the at least one preference ID of the router, and relaying the incoming broadcast packet from a first network domain to a second network domain if the broadcast ID of the incoming broadcast packet matches one preference ID of the router.
US08891352B2 Data transmission and receiving method and apparatus
A data transmission method is disclosed in the present invention, where the method includes: mapping a data stream to be transmitted to an orthogonal frequency division multiplexing access, OFDMA, sub-carrier; scheduling the OFDMA sub-carrier; multiplexing the OFDMA sub-carrier to generate an OFDMA frame; and transmitting the OFDMA frame. A data transmission apparatus and a data receiving apparatus are also disclosed in the present invention. Through the present invention, a cross connection capability on the basis of the OFDMA sub-carrier is implemented, and in this way, not only all convergence services from a slave node to a master node are supported, but also a private line connection between two slave nodes is supported.
US08891351B2 Orthogonal variable spreading factor code sequence generation
An apparatus generally having a first circuit and a second circuit is disclosed. The first circuit may be configured to generate (i) a plurality of first code bits in response to an index value and (ii) a plurality of first intermediate bits in response to the index value. The first code bits may be generated in parallel with the first intermediate bits. The second circuit may be configured to generate a plurality of second code bits in response to all of (i) the index value, (ii) the first code bits and (iii) the first intermediate bits. A combination of the first code bits and the second code bits generally forms one of a plurality of orthogonal codes.
US08891350B2 Method and apparatus of data transmission over guard sub-carriers in multi-carrier OFDM systems
A method of data transmission over guard sub-carriers is provided in a multi-carrier OFDM system. Adjacent radio frequency (RF) carriers are used to carry radio signals transmitted through adjacent frequency channels. A plurality of guard sub-carriers between adjacent frequency channels are aligned and identified for data transmission in a pre-defined physical resource unit. The identified guard sub-carriers do not overlap with normal data sub-carriers of the radio signals transmitted through the adjacent frequency channels. At least one of the identified guard sub-carriers is reserved as NULL sub-carrier. A flexible multi-carrier transceiver architecture is also provided in a multi-carrier OFDM system. Different multi-carrier and/or MIMO/SISO data transmission schemes are implemented by adaptively reconfigure same hardware modules including common MAC layer module, physical layer entities, and RF entities. Furthermore, the flexible multi-carrier transceiver architecture can be used to support data transmission over guard sub-carriers.
US08891343B2 Method for formatting and reading data disks
The present techniques present methods and systems for increasing a data reading rate on optical data disks using a single reading head. The methods take advantage of the difference between a mean focal distance (MFD), or minimum spacing that the detector can distinguish between bits, and the minimum separation of bits in a single track to increase the reading speed. As the bits may be more closely spaced across adjacent tracks or layers, these techniques may be used to increase the reading speed of the disk. Specifically, the data symbols that make up a single bit-stream may be stored in a pattern horizontally across adjacent tracks, or vertically across adjacent layers. Accordingly, the focal point of the detector is scanned across the disk in the same pattern to read the individual data symbols.
US08891340B2 Heat source management in data storage device
An apparatus and associated method is presently disclosed for a control circuitry capable of managing a heat source used in data storage applications. Various embodiments of the present invention are generally directed to a heat source directed at a data storage medium with a synchronization signal and a serial interface that are each selectively activated via a demultiplexed write gate signal. The selective activation allows for pulsed operation of the heat source resulting in reduced duty cycle and temperature during a write operation.
US08891339B2 Timepiece movement of reduced height with a large power reserve
Timepiece gear train device (1) of reduced height with a large power reserve, driving display means (4) including a cannon-pinion (5) and an hour wheel (6), which are driven about a main pivot axis (AP), secant to a barrel (3), by a motion work (7) and including a driving wheel (8), which pivots about a secondary pivot axis (AS) external to said barrel (3) and is friction coupled to said motion work (7) on a friction surface (9) coaxial to said secondary pivot axis (AS).Said driving wheel (8) includes a driving cannon pinion (83) pivoting about a wheel body (80) along said secondary pivot axis (AS) and coupled by a friction spring (84) to a shoulder (85) of said wheel body (80) forming said friction surface (9), said driving cannon-pinion (83) cooperating with a minute wheel (14) pivoting about a minute axis (AM).
US08891335B2 Generation of ultra-high frequency sound
An apparatus for generating ultra-high frequency sound waves with frequencies between (1 GHz-10 GHz) is proposed. The apparatus comprises a magnetic phonon-gain medium configured to generate high frequency non-equilibrium phonons by non-equilibrium magnons having the magnon velocity exceeding the sound velocity in the magnetic phonon-gain medium. The non-equilibrium magnons having the magnon velocity exceeding the sound velocity in the magnetic phonon-gain medium are generated by injected non-equilibrium electrons having spin opposite to the direction of magnetization of the magnetic phonon-gain medium. The apparatus further comprises a means for outputting the ultra-high frequency non-equilibrium phonons.
US08891333B2 Oscillator and electronic device
An elastic vibration plate (110) is divided into a plurality of elastic vibrating regions (112) through slits (111) having a predetermined shape, a plurality of piezoelectric vibrators (120) which are individually mounted on at least some of the plurality of elastic vibrating regions (112) on the elastic vibration plate (110) undergo elastic vibration due to application of an electric field. Therefore, it is possible to vibrate the plurality of elastic vibrating regions (112) on a single elastic vibration plate (110) using the plurality of piezoelectric vibrators (120). Therefore, it is possible to adjust the peak value and the like of the oscillation frequency at will in each of the plurality of elastic vibrating regions.
US08891331B2 Steerable source array and method
Method and marine acoustic source array for generating an acoustic wave in a body of water. The marine acoustic source array includes first and second external source sub-arrays, each sub-array including one or more individual source elements; a first actuator device connected to the first external source sub-array; and a second actuator device connected to the second external source sub-array. The first actuator device has a corresponding cable configured to connect to a first lead-in, and the second actuator device has a corresponding cable configured to connect to a second lead-in such that a position of the source array as a whole is controllable along a line substantially perpendicular to a path of the source array.
US08891328B2 Low voltage metal gate antifuse with depletion mode MOSFET
An antifuse according to an embodiment of the invention herein can include a depletion mode metal oxide semiconductor field effect transistor (“MOSFET”) having a conduction channel and a metal gate overlying the conduction channel. A cathode and an anode of the antifuse can be electrically coupled to the gate and spaced apart from one another in a direction the gate extends, such that the antifuse is programmable by driving a programming current between the cathode and the anode to cause material of the metal gate to migrate away. The gate may be configured such that, under appropriate biasing conditions, when the antifuse is unprogrammed, the conduction channel is turned on unless a voltage above a first threshold voltage is applied to the gate to turn off the conduction channel. The gate can be configured such that when the antifuse has been programmed, the conduction channel remains turned on even if a voltage above the first threshold voltage is applied between the gate and a source region of the MOSFET.
US08891326B1 Method of sensing data in magnetic random access memory with overlap of high and low resistance distributions
A method of writing to a magneto tunnel junction (MTJ) includes writing data to the MTJ, reading the written data using a first reference MTJ and reading the written data using a second reference MTJ. Based on the reading steps and the result of the comparing step, setting a select bit to select the proper reference for future reads.
US08891324B2 Memory device from which dummy edge memory block is removed
A semiconductor memory device having an open bitline memory structure from which an edge dummy memory block is removed, the semiconductor memory device includes a memory block, an edge sense amplification block including a first sense amplifier having a first bitline, a first complementary bitline, and a first amplification circuit comprising a first transistor having a first size, a central sense amplification block including a second sense amplifier having a second bitline, a second complementary bitline, and a second amplification circuit comprising a second transistor having a second size different from the first size, a capacitor block electrically connected to the edge sense amplification block.
US08891322B2 Memory system with a layer comprising a dedicated redundancy area
Systems and methods are disclosed that may include a first layer comprising a first redundant memory element, an input/output interface, a first layer fuse box, and a fuse blowing control. These systems and methods also may include a second layer coupled to the first layer through a first connection comprising a second layer memory element and a second layer fuse box coupled to the first redundant memory element. In addition, these systems and methods may further include a redundancy register coupled to the first layer, wherein upon the failure of part of the second layer memory element, the redundancy register provides information to the fuse blowing control that allocates part of the first redundant memory element to provide redundancy for the failed part of the second layer memory element by blowing elements in the first layer fuse box and the second layer fuse box.
US08891318B2 Semiconductor device having level shift circuit
A semiconductor device includes: two level shift circuits having substantially the same circuit configuration; an input circuit that supplies complementary input signals to the level shift circuits, respectively; and an output circuit that converts complementary output signals output from the level shift circuits into in-phase signals and then short-circuits the in-phase signals. According to the present invention, the two level shift circuits having substantially the same circuit configuration are used, and the complementary output signals output from the level shift circuits are converted into in-phase signals before short-circuited. This avoids almost any occurrence of a through current due to a difference in operating speed between the level shift circuits.
US08891316B2 Nonvolatile memory devices including notched word lines
Nonvolatile memory devices can include a floating gate on a substrate, with a first tunnel insulating film therebetween. A memory gate can be on the floating gate, with a blocking insulating film therebetween. A word line can be located at a first side of both the memory gate and the floating gate, with a second tunnel insulating film therebetween. The first side of the floating gate can protrude beyond the first side of the memory gate toward the word line.
US08891313B2 Memory device and read operation method thereof
A read operation for a memory device. In response to an input address indicating to read data from a different page, a selected word line, first and second global bit lines and a selected first bit line group are precharged. A first cell current flowing through the selected word line, the first and the selected first bit line groups is generated. A first reference current flowing through the second global bit line group is generated. A first half page data is read based on the first cell current and the first reference current. The selected word line, the first and the second global bit lines are kept precharged. A second cell current flowing through the selected word line is generated. A second reference current is generated. A second half page data is read based on the second cell current and the second reference current.
US08891312B2 Method and apparatus for reducing erase time of memory by using partial pre-programming
Memory cells of a nonvolatile memory array are characterized by one of multiple threshold voltage ranges including at least an erased threshold voltage range and a programmed threshold voltage range. Responsive to an erase command to erase a group of memory cells of the nonvolatile memory array, a plurality of phases are performed, including at least a pre-program phase and an erase phase. The pre-program phase programs a first set of memory cells in the group having threshold voltages within the erased threshold voltage range, and does not program a second set of memory cells in the group having threshold voltages within the erased threshold voltage range in the group. By not programming the second set of memory cells, the pre-program phase is performed more quickly than if the second set of memory cells were programmed along with the first set of memory cells.
US08891310B2 EEPROM memory protected against breakdown of control gate transistors
The disclosure relates to an electrically erasable and programmable memory comprising at least one word of memory cells with first and second control gate transistors in parallel to apply a control gate voltage to the memory cells of the word. The memory also comprises s first control circuit to supply a first control voltage to a control terminal of the first control gate transistor through a first current limiter, and a second control circuit to supply a second control voltage to a control terminal of the second control gate transistor through second current limiter.
US08891305B2 Apparatuses and methods involving accessing distributed sub-blocks of memory cells
Apparatuses and methods involving accessing distributed sub-blocks of memory cells are described. In one such method, distributed sub-blocks of memory cells in a memory array are enabled to be accessed at the same time. Additional embodiments are described.
US08891300B2 Nonvolatile memory device, memory system having the same and block managing method, and program and erase methods thereof
In one embodiment, the method includes overwriting a memory cell storing m-bit data to store n-bit data, where n is less than or equal to m. The memory cell has one of a first plurality of program states when storing the m-bit data, and the memory cell has one of a second plurality of program states when storing the n-bit data. The second plurality of program states include at least one program state not in the first plurality of program states.
US08891297B2 Memory cell sensing
This disclosure concerns memory cell sensing. One or more methods include determining a data state of a first cell coupled to a first data line in response to a request to sense a data state of a second cell coupled to a second data line, applying a reference voltage to the first data line, floating the second data line while adjusting a voltage of the first data line to an adjusted voltage associated with the determined data state of the first cell, determining an effect on the second data line due, at least in part, to the adjusting the voltage of the first data line, and sensing the data state of the second cell by applying a particular sensing voltage to a selected access line to which the first cell and the second cell are coupled, the particular sensing voltage based on the determined effect on the second data line.
US08891294B2 Multilevel differential sensing in phase change memory
Methods and systems for multi-bit phase change memories. Using differential sensing for memory reads provides advantages including improved temperature and drift resilience, improved state discrimination and increased storage density.
US08891292B2 Magnetoresistive layer structure with voltage-induced switching and logic cell application
Embodiments of the invention include a voltage-switching MTJ cell structure that includes two sub-MTJs in series. Each free layer can be switched independently from the other. Each sub-MTJ has a high and a low resistance state and the MTJ cell structure can have three or four discrete resistance states. By taking advantage of the electrical field induced anisotropy combining with the spin torque effect, free layer-1 and free layer-2 can be controlled individually by voltage pulses having selected sign (polarity) and amplitude characteristics. The MTJ cell structure can be used as a fully functional logic cell with two input bit values corresponding to the high or low resistance of the two sub-MTJ structures and the output of a logical operation, e.g. an XOR function, determined by the resistance state of each MTJ cell.
US08891291B2 Magnetoresistive logic cell and method of use
A magnetoresistive logic cell (MRLC) is described that includes two MTJs in series that share a common free layer (CFL). The relative magnetization orientations of the CFL and the switchable reference layer (SRL) in MTJ-1 dominate the overall resistance of the MRLC without regard to the fixed magnetization orientation of the nonswitchable reference layer in MTJ-2. High and low resistance states of the MRLC occurs based on the relative magnetization orientations of SRL and CFL. This behavior allows the MRLC to be used as a logical comparator. The CFL is switched by STT effect by application of selected relatively short voltage pulses that do not switch the SRL. A voltage-induced switching principle can be used with MRLC embodiments of the present invention to switch the SRL to parallel or anti-parallel with respect to the magnetization CFL in both perpendicular and in-plane anisotropy embodiments.
US08891290B2 Method and system for providing inverted dual magnetic tunneling junction elements
A method and system for providing a magnetic junction residing on a substrate and usable in a magnetic device are described. The magnetic junction includes a first pinned layer, a first nonmagnetic spacer layer having a first thickness, a free layer, a second nonmagnetic spacer layer having a second thickness greater than the first thickness, and a second pinned layer. The first nonmagnetic spacer layer resides between the pinned layer and the free layer. The first pinned layer resides between the free layer and the substrate. The second nonmagnetic spacer layer is between the free layer and the second pinned layer. Further, the magnetic junction is configured such that the free layer is switchable between a plurality of stable magnetic states when a write current is passed through the magnetic junction.
US08891289B2 Ten-transistor dual-port SRAM with shared bit-line architecture
A 10-transistor dual-port SRAM with shared bit-line architecture includes a first memory cell and a second memory cell. The first memory cell has a first storage unit, a first switch set, and a second switch set. The second memory cell has a second storage unit, a third switch set, and a fourth switch set. The second switch set is coupled to a complement first A-port bit line and a complement first B-port bit line, and connected to the first storage unit. The third switch set is connected to a complement second A-port bit line, a complement second B-port bit line, and the second storage unit. Thus, the second memory cell can make use of the third switch set to share the complement first A-port bit line and the complement first B-port bit line with the first memory cell.
US08891288B2 8T SRAM cell with one word line
An integrated circuit with SRAM cells containing dual passgate transistors and a read buffer, all connected to one word line is disclosed. The read buffer and one passgate transistor may be variously configured to a separate read data line and write data line, or a combined data line, in different embodiments. The read buffer in addressed SRAM cells may be biased during read operations. The read buffer in half-addressed SRAM cells may be biased or floated, depending on the configuration of the read data line and the write data line. The read buffer in addressed and half-addressed SRAM cells may be biased or floated, depending on the configuration of the read data line and the write data line.
US08891283B2 Memristive device based on current modulation by trapped charges
A memristive device includes a first electrode; a second electrode; a junction between the first electrode and the second electrode, the junction including a semiconductor matrix and particles embedded in the semiconductor matrix, the particles being configured to hold a selectable level of electrical charge, the electrical charge controlling the amount of current flowing through the junction for a given reading voltage. A method for using a memristive device includes: applying a first voltage across a memristive junction, the memristive junction including a semiconductor matrix and particles embedded in the semiconductor matrix; electrical charges introduced into the semiconductor matrix by the first programming voltage being trapped within the particles; applying a reading voltage across the memristive junction; and measuring a current across the junction, the current being reduced proportionally to the electrical charges trapped within the potential wells, the current being used to determine a state of the junction.
US08891280B2 Interconnection for memory electrodes
Row and/or column electrode lines for a memory device are staggered such that gaps are formed between terminated lines. Vertical interconnection to central points along adjacent lines that are not terminated are made in the gap, and vertical interconnection through can additionally be made through the gap without contacting the lines of that level.
US08891276B2 Memory array with local bitlines and local-to-global bitline pass gates and gain stages
A memory array includes wordlines, local bitlines, two-terminal memory elements, global bitlines, and local-to-global bitline pass gates and gain stages. The memory elements are formed between the wordlines and local bitlines. Each local bitline is selectively coupled to an associated global bitline, by way of an associated local-to-global bitline pass gate. During a read operation when a memory element of a local bitline is selected to be read, a local-to-global gain stage is configured to amplify a signal on or passing through the local bitline to an amplified signal on or along an associated global bitline. The amplified signal, which in one embodiment is dependent on the resistive state of the selected memory element, is used to rapidly determine the memory state stored by the selected memory element.
US08891275B2 Stacked dynamic random access memory
A memory includes at least one first substrate on which unit memory arrays are disposed as a matrix type, each unit memory array including unit memory cells disposed in an array, a second substrate stacked with the at least one first substrate, the second substrate including a sense amplifier region in which sense amplifiers configured to sense information stored in the unit memory cells are disposed, and a plurality of vertical conduction traces configured to electrically connect the at least one first substrate with the second substrate. The sense amplifier region is disposed in a memory region of the second substrate, wherein the memory region of the second substrate corresponds to the memory region of the first substrate.
US08891274B2 Semiconductor device
A semiconductor device includes a first memory block configured to include first active areas extended parallel in a first direction, a second memory block adjacent to the first memory block and configured to include second active areas extended parallel in the first direction, the second active areas being staggered from the first active areas, first bit lines disposed on the first active areas, and second bit lines disposed on the second active areas.
US08891269B2 Full bridge converter
Methods and circuits for balancing current in a transformer are disclosed herein. An embodiment of the method includes sensing the magnitude and direction of current flow through the primary side of the transformer. The magnitude of current flowing in a first direction is compared to the magnitude of current flowing in a second direction through the primary side of the transformer. An AC signal driving the primary side of the transformer is adjusted so that the current flow in the first direction is substantially the same as current flow in the second direction.
US08891264B1 Series circuits and devices
Embodiments of the present invention relate to a rectifier circuit and methods of making the same for use in wireless devices (e.g., RFID tags). The present invention is drawn to a rectifier circuit comprising first and second diode-wired transistors in series, each having a gate oxide layers of the same target thickness. The first diode-wired transistor receives an alternating current and the second diode-wired transistor provides a rectifier output. The first and second diode-wired transistors are configured to divide between them a first voltage differential across the rectifier circuit. The gate oxides are exposed to a peak stress that is similar to a stress on the gate oxide of logic transistors made using the same process. The present invention is further drawn to a method of making a rectifier circuit, comprising printing a plurality of transistor bodies on a substrate, forming a gate oxide on each of the transistor bodies and a gate on each gate oxide, doping exposed portions of the transistor body to form first and second source/drain terminals therein, and forming interconnects electrically connecting the first source/drain terminals to the gate over the corresponding transistor body.
US08891263B2 Inverter apparatus having power supply circuit
An inverter apparatus having a power supply circuit includes a converter circuit for rectifying AC power into DC power, a smoothening circuit for smoothening the rectified DC power, an inverter circuit for converting the smoothened DC into AC at a variable frequency through a plurality of switches to control a load, and a current detection circuit for detecting overcurrent from the smoothened DC supplied from the inverter circuit, wherein the inverter circuit applies bootstrap power for driving the switches to the current detection circuit to use the bootstrap power as power of the current detection circuit. When bootstrap power for driving switch gates is used, it is possible to use the bootstrap power as the power of the current detection circuit by adding the auxiliary circuit composed of a small number of passive elements.
US08891260B2 Power converter with voltage fluctuation suppression in switching elements
A switching element connects/disconnects an input end to/from at least either of power supply lines. A switching element is provided between the power supply lines. One end on the low potential side of a power supply unit is connected to the switching element on the side of either of the power supply lines. One end of a capacitor is connected between the switching element and the input end. The other end of the capacitor is connected to one end on the high potential side of the power supply unit. The capacitor and the power supply unit respectively serve as operation power supplies for outputting switch signals to the switching elements. A voltage adjustment unit maintains voltage across both ends of the capacitor.
US08891253B2 Inverter, system and method comprising a DC-DC push-pull converter with a transformer
A grid tied inverter connectable to an electricity grid, the grid tied inverter comprising a DC to DC current fed push-pull converter operable to generate a current waveform from a DC voltage source, the current waveform being substantially synchronized to the electricity grid, the push-pull converter comprising a transformer having a first side connectable to a battery and a second side connectable to the grid, wherein each of the two primary sides is connected to ground via a switching transistor; and respective voltage clamps are connected between the respective primary side of the transformer and the respective switching transistor, the voltage clamp commutating the current from the respective primary side of the transformer when the switching transistor is turned off.
US08891250B2 Audio device with integrated switching power supply
An integrated audio device, such as, for example, a table-top radio, including a housing, a speaker disposed within the housing, a switching power supply disposed within the housing, and audio circuitry disposed within the housing and coupled between the digital switching power supply and the speaker.
US08891243B2 Wall mounted diagnostic cabinet assembly
A cabinet assembly for holding electronic instruments comprising a mounting rail defining a channel therein, the mounting rail defining a plurality of spaced apertures and center cutouts and a chassis coupler mounted to mounting rail. A housing is mounted to the chassis coupler and an exterior housing cover is mounted to the housing. The mounting rail is covered by a rail cover panel having wiring raceways and an access cover panel is mounted at the base of the rail cover panel.
US08891240B2 Apparatus and method for cooling a semiconductor device
An apparatus and method for cooling a semiconductor device. The apparatus comprises a chamber configured for receiving a cooling fluid; and a plurality of contact elements comprising respective first ends disposed within the chamber; wherein, during operation, respective second ends of contact elements contact a surface of the semiconductor device for transferring heat generated in the semiconductor device to the cooling fluid.
US08891236B2 Housings that move using a link that slidingly engages cams
An apparatus includes a first housing having a first cam and a second housing having a second cam. A link is configured and disposed to slidingly engage these cams. The first housing moves with respect to the second housing between a first position (that comprises a stacked configuration) and a second position (that comprises a deployed configuration). The aforementioned link can include a pair of substantially collinear slots disposed therethrough. The cams, in turn, can be at least substantially pear shaped and can be disposed offset to one another and substantially longitudinally parallel to one another as well. Also if desired, such cams can be disposed on interior surfaces of both housings, and on both sides of the housings as well.
US08891233B2 Cable management module
A cable management module having of a first module capable of connecting to a hard disk drive drawer; a second module releasably connected to the first module. A plurality of pairs of connecting arms connect the first module to the second module with each of the pairs of connecting arms being pivotally joined to each other at an intermediate point. A catch member is located on at least one side of the first module and a locking release mechanism is attached to the second module and to a locking member capable of engaging the catch member. A method for accessing a hard disk drive without disconnecting input/output cables and a method of replacing the input/output cables is also disclosed.
US08891231B2 Hinge configuration for an electronic device
Particular embodiments described herein provide for an electronic device, such as a notebook computer or laptop, that includes a circuit board coupled to a plurality of electronic components (which includes any type of components, elements, circuitry, etc.). The electronic device may also include a base portion and a lid portion coupled to the base portion at a hinge configured such that the base portion and the lid portion can rotate between an open configuration of the electronic device and a closed configuration of the electronic device. The lid portion can include at least one segment that is to raise at least a portion of the base portion in response to a rotation toward the open configuration (e.g., opening the lid portion to access a touchpad or a keyboard of the electronic device, or to see a display of the electronic device).
US08891230B1 Tablet computer protector and covering assembly
A tablet computer protector and covering assembly includes a panel that having a top side and a bottom side and a perimeter wall attached to the top side. The perimeter wall extends around a receiving space for receiving a tablet computer. A covering includes a back cover, a front cover and a medial section attached to and positioned between the front and back covers. The medial section is pivotable with respect to the front and back covers to allow closing or opening of the covering. The back cover and the front cover each have an inner surface and an outer surface. The inner surfaces face each other when the covering is in the closed position. A coupler releasably couples the tablet computer receiver to the back cover such that the bottom side faces the inner surface.
US08891225B2 Ceramic electronic component and method for manufacturing the same
A ceramic electronic component includes a ceramic element assembly and external electrodes. The external electrodes are disposed on the ceramic element assembly. The external electrodes include an underlying electrode layer and a first Cu plating film. The underlying electrode layer is disposed on the ceramic element assembly. The first Cu plating film is disposed on the underlying electrode layer. The underlying electrode layer includes a metal that is diffusible in Cu and a ceramic bonding material. The metal that is diffusible in Cu is diffused in at least a surface layer in the underlying electrode layer side of the first Cu plating film.
US08891224B2 Capacitor with multiple elements for multiple replacement applications
A capacitor provides a plurality of selectable capacitance values, by selective connection of six capacitor sections of a capacitive element each having a capacitance value. The capacitor sections are provided in a plurality of wound cylindrical capacitive elements. Two vertically stacked wound cylindrical capacitance elements may each provide three capacitor sections. There may be six separately wound cylindrical capacitive elements each providing a capacitor section. The capacitor sections have a common element terminal.
US08891221B2 Electrical installation, installation kit, and branch off device
An electrical installation with circuit integrity of an electric through line under fire impact. Branch off devices are connected to the through line, and branch lines are connected to the branch off devices. The branch off devices include a thermally triggering disconnect device for providing circuit integrity of the through line under fire impact. The disconnect device is configured to disconnect an electrical connection between the branch line and the through line self-acting when an ambient temperature increases to a predetermined value that is typical for a fire. An installation kit and a branch off device for such an electrical installation.
US08891220B2 Overcurrent cutoff device, and overcurrent detecting element to be used in overcurrent cutoff device
An overcurrent cutoff device includes a heat generating unit located in series with a path leading from a battery B for a vehicle to a motor via a wire, and a heat sensing unit with characteristics varying with the temperature supplied from the heat generating unit. The overcurrent cutoff device cuts off overcurrent by activating a switching element, based on a signal in accordance with the temperature obtained from the heat sensing unit. The overcurrent cutoff device includes an overcurrent detecting element in which the heat generating unit and the heat sensing unit are integrally covered with a molded resin section.
US08891215B2 High noise immunity with latch-up free ESD clamp
A triple stack NMOS integrated circuit structure protection circuit for a plurality of terminals operative at respective voltage levels is coupled between the plurality of terminals. First and second NMOS elements of the triple stack NMOS share a common active region. A third NMOS element, vertically positioned with respect to the first and second NMOS elements, has an active region separate from the active region of the first and second NMOS elements. The first, second and third NMOS elements are connected in series between two terminals of the plurality of terminals.
US08891213B2 Integrated electrostatic discharge (ESD) device
A semiconductor device for ESD protection includes a semiconductor substrate of a first conductivity type and a well region of a second conductivity type formed within the substrate. The well region is characterized by a first depth. The device includes an MOS transistor, a first bipolar transistor, and a second bipolar transistor. The MOS transistor includes a first lightly doped drain (LDD) region of a second depth within the well region, and a drain region and an emitter region within in the first LDD region. The emitter region is characterized by a second conductivity type. The first bipolar transistor is associated with the emitter region, the first LDD region, and the well region, and is characterized by a first trigger voltage. The second bipolar transistor is associated with the first LDD region, the well region, and the substrate, and is characterized by a second trigger voltage.
US08891210B2 Electronic control unit including discharging circuit with plurality of resistors connected in series
An electronic control unit mounted on a vehicle includes: a capacitor that smoothes voltage of a DC power source electrically isolated from a body of the vehicle; a resistor circuit including a plurality of resistors connected in series, which is connected in parallel to the capacitor to discharge electric charge stored in the capacitor; and a fault judging circuit that judges whether or not the resistor circuit is in a fault condition by comparing the voltage across the resistor included in the resistor circuit with a fault threshold value. The fault judging circuit is adapted to change the fault threshold value based on the voltage of the DC power source.
US08891204B2 Biasing structure for write element domain control in a magnetic writer
A magnetic writer includes a write element having a first domain pattern when in a quiescent state and a second domain pattern when in an active state. A biasing structure is configured to induce the write element into the first domain pattern when the magnetic writer is in the quiescent state.
US08891201B2 Information processing unit with curvilinear track
A medium processing device includes: an information processor that performs at least one of record processing and read processing of information to each of recording media; a magazine that includes storage units which store the recording media, respectively, the storage units which adjoin each other being rotatably connected via a hinge member; a conveyance route that guides the magazine; a first introduction ejector that introduces or ejects the magazine; a second introduction ejector that introduces or ejects the magazine; a driving device that conveys the magazine introduced from any one of the first introduction ejector and the second introduction ejector, to a position where the magazine is capable of being ejected from another one of the first introduction ejector and the second introduction ejector; and a medium mover that moves each of the recording media between each of the storage units of the conveyed magazine and the information processor.
US08891200B1 Impedance mitigation of a microactuator conductive joint
Apparatus and method for mitigating impedance changes in a microactuator conductive joint. In accordance with some embodiments, a microactuating element has a conductive input junction, the junction having dissimilar metals in contact with one another. The microactuating element is adapted to mechanically deform to displace a control object responsive to a micractuation control signal that is applied to the junction. A control circuit applies a bi-directional transition signal to the conductive input junction to reduce an increased impedance of the junction.
US08891198B2 Method and apparatus for operating a tape storage device
In a method for operating a tape storage device comprising a tape head for reading and/or writing data from/to a tape in the tape storage device, a first tape skew value concerning a skew of the tape is determined and the first tape skew value is converted into a first skew control signal by means of a skew feedback controller. A second tape skew value concerning the skew of the tape is determined, and the second tape skew value is converted into a second skew control signal by a feed-forward controller. At least one compensation signal for the second skew control signal is determined, and at least one of a rotational orientation of the tape head and a tape motion direction of the tape is controlled dependent on the second skew control signal and the compensation signal in case the first skew control signal fails.
US08891195B1 Method and system for compensating for track squeeze
A storage device includes a storage medium having a plurality of tracks of data. Reading apparatus for reading a current track of data that has been subject to previous encroachment to an extent from at least one adjacent track of data includes a write head that writes interfering data to the adjacent track of data while intentionally encroaching at least to that extent onto the current track of data, and circuitry that recovers data on the current track of data using the interfering data. A method for reading a current track of data, that has been subject to previous encroachment to an extent from at least one adjacent track of data, includes writing interfering data to the adjacent track of data while intentionally encroaching at least to that extent onto the current track of data, and recovering data on the current track of data using the interfering data.
US08891183B2 Image lens assembly
An image lens assembly includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element. The first lens element with positive refractive power has a convex object-side surface. The second lens element has refractive power. The third lens element has positive refractive power. The fourth lens element has negative refractive power. The fifth lens element with positive refractive power has a convex object-side surface and a concave image-side surface. The sixth lens element with positive refractive power has a convex object-side surface and a concave image-side surface, wherein the image-side surface thereof changes from concave at a paraxial region to convex at a peripheral region. The fifth and sixth lens elements are made of plastic, and the surfaces thereof are aspheric.
US08891175B2 Lens-frame moving mechanism
A lens-frame moving mechanism includes a lens frame guided to move between a ready-to-photograph position and a retracted position, the lens frame being biased forwardly by a biaser; an intermediate linearly movable member, wherein the lens frame contacts the intermediate linearly movable member; a leading screw formed on the drive shaft of a motor; a nut member screw-engaged onto the leading screw, wherein the nut member does not rotate relative to the lens frame and moves the intermediate linearly movable member in the optical axis direction; and a rearwardly-movable member which rearwardly moves the lens frame against the biasing force such that the lens frame moves away from the intermediate linearly movable member in the optical axis direction while the lens frame is moved from the ready-to-photograph position to the retracted position.
US08891174B2 Zoom lens and projector using the same
A zoom lens includes, in order from an enlargement side to a reduction side, a first lens unit having positive refractive power and not moving for zooming, a second lens unit having negative refractive power and moving for zooming, a stop, a zooming lens unit having positive refractive power and moving for zooming, and a final lens unit having positive refractive power and not moving for zooming. During zooming from a wide-angle end to a telephoto end, the second lens unit moves to the reduction side and the zooming lens unit moves to the enlargement side. The zooming lens unit includes a cemented lens. The cemented lens includes a negative lens and a positive lens cemented in order from the enlargement side. A cemented surface of the cemented lens has a convex shape on the enlargement side. The zoom lens satisfies predetermined conditions.
US08891170B2 Laser irradiation apparatus and manufacturing method of semiconductor device
A deflecting mirror which deflects a laser beam emitted from a laser oscillator, a transfer lens, a cylindrical lens array which divides the laser beam having passed through the transfer lens into a plurality of laser beams, and a condensing lens which superposes the laser beams formed in the cylindrical lens array are included. The following formula is satisfied: 1/f=1/(a+b)+1/c, when: “a” is a distance between an emission opening of the laser oscillator and the deflecting mirror; “b” is a distance between the deflecting mirror and the transfer lens; “c” is a distance between the transfer lens and an incidence plane of the cylindrical lens array; and “f” is a focal length of the transfer lens.
US08891169B2 Optical sheet and display device
Provided is an optical sheet hardly causing a change in color depending on the observation angle of an image, the optical sheet including a plurality of layers, at least one of the layers being an optical functional sheet layer including prisms arranged in parallel along a surface of the optical sheet such that light is transmittable; and light-absorbing portions arranged in parallel between the prisms in a way to absorb light, at least another one of the layers being a light diffusing material-containing layer with optical diffusing particles dispersed in a base material, and the optical sheet satisfying a relation of NdK
US08891168B2 Optical element and optical apparatus
The present invention provides a small and inexpensive optical element that integrates a reflecting mirror and a wave plate function. A reflecting wave plate is configured by arranging a periodic metal comb-like structure whose pitch is equal to or below a wavelength and a mirror structure with a distance equal to or below a coherence length.
US08891164B2 System for wavefront analysis and optical system having a microscope and a system for wavefront analysis
An optical system, comprising a microscope housing having a coupling opening for a detachable coupling of an objective lens of the optical system such that the objective lens is arranged in a microscope beam path of the optical system for imaging an object region of the objective lens. The optical system further comprises an assembly. The assembly comprises an assembly housing having a coupling element for the detachable coupling of the coupling element and the coupling opening of the microscope housing; a wavefront analysis system, which provides a wavefront beam path; and a beam splitter, which is arranged in the wavefront beam path. The objective lens, the beam splitter and the wavefront analysis system are arranged such that during the coupling of the coupling opening and the coupling element, the objective lens is arranged in the microscope beam path and the object region is arranged in the wavefront beam path.
US08891163B2 Reflective optical element and EUV lithography appliance
A reflective optical element and an EUV lithography appliance containing one such element are provided, the appliance displaying a low propensity to contamination. The reflective optical element has a protective layer system includes at least two layers. The optical characteristics of the protective layer system are between those of a spacer and an absorber, or correspond to those of a spacer. The selection of a material with the smallest possible imaginary part and a real part which is as close to 1 as possible in terms of the refractive index leads to a plateau-type reflectivity course according to the thickness of the protective layer system between two thicknesses d1 and d2. The thickness of the protective layer system is selected in such a way that it is less than d2.
US08891161B2 Optical device, laser apparatus, and extreme ultraviolet light generation system
An optical device may include: an optical module disposed in a beam delivery path of a laser beam; a beam adjusting unit disposed in the beam delivery path for adjusting the beam delivery path of the laser beam; a measuring unit disposed in the beam delivery path for detecting the beam delivery path; and a control unit for controlling the beam adjusting unit based on a detection result of the beam delivery path of the laser beam detected by the measuring unit.
US08891158B2 Distributed thermal system for nonlinear optical frequency conversion
A laser frequency converter includes a first substrate material forming a first planar surface that includes a first nonlinear material situated along a portion of the first planar surface of the first substrate material to perform a frequency conversion of a laser signal. The frequency converter includes a second substrate material forming a second planar surface and separated by a distance from the first planar surface of the first substrate material. The second substrate material includes a second nonlinear material situated along a portion of the second planar surface of the second substrate material to perform the frequency conversion of the laser signal in conjunction with the first non-linear material. The second nonlinear material is offset from the first nonlinear material along an axis of propagation for the laser signal.
US08891154B2 Electrochromic device having an improved fill port plug
An electrochromic device including: (a) a first substantially transparent substrate having an electrically conductive material associated therewith; (b) a second substrate having an electrically conductive material associated therewith; (c) an electrochromic medium contained within a chamber positioned between the first and second substrates which includes: (1) a solvent; (2) an anodic material; and (3) a cathodic material, wherein both of the anodic and cathodic materials are electroactive and at least one of the anodic and cathodic materials is electrochromic; (d) wherein a seal member, the first substrate, the second substrate, and/or the chamber includes a plug associated with a fill port; and (e) wherein the plug is at least partially cured with an antimonate photo initiator and/or is a one- or two-part plug which comprises a resin or mixture of resins that are substantially insoluble and/or substantially immiscible with an associated electrochromic medium while in the uncured state.
US08891153B2 Method of manufacturing electrooptic devices
This invention discloses a low cost method to manufacture electrooptic devices at low cost and discloses materials that may be used in fabrication of electrooptic devices.
US08891143B2 Sheet feeding device, image forming apparatus, and image scanning apparatus
A sheet feeding device includes a sheet supporting portion, a sheet feeding portion, and a movable regulating portion. The sheet feeding portion feeds a sheet bundle uppermost sheet. The movable regulating portion is disposed downstream of the sheet bundle in a sheet feeding direction such that the movable regulating portion is tiltable between a regulation position and a regulation release position. While the movable regulating portion regulates the sheet bundle movement in the regulation position, the sheet feeding portion forms a loop in the uppermost sheet between the sheet feeding portion and the movable regulating portion, the movable regulating portion is moved to the regulation release position after loop formation to remove the formed loop, and the movable regulating portion is returned to the regulation position after loop removal such that the movable regulating portion raises the uppermost sheet leading end to separate the uppermost sheet from other sheets.
US08891141B2 Image reading apparatus and image forming apparatus having the same
An image reading apparatus according to one aspect of the present disclosure includes a document sheet table, a first carriage, a photoelectric converting portion, and a position detecting portion. First carriage has lighting portion. Position detecting portion detects initial position in reciprocating of first carriage. Lighting portion includes: light guide member on which the light from light source is incident, and which guides incident light in primary scanning direction and applies the light to document sheet table; and heat dissipating member that dissipates heat generated in light source. Position detecting portion includes: light emitter that emits light; light receiver that receives light emitted from light emitter; and detection member that moves in secondary scanning direction along with reciprocating of first carriage, in order to detect initial position of first carriage. Detection member is formed as flat plate that is integrated with heat dissipating member and extends in secondary scanning direction.
US08891137B2 Data communication system
In a system in which a facsimile apparatus is connected to a LAN (Local Area Network) to which a plurality of computer terminals are connected, image data obtained by reading an original image by the scanner of the facsimile apparatus under the control of the operation unit of the facsimile apparatus is transmitted to a destination designated by the operation unit. In this operation, if a user ID is designated, transmitted image data and information (destination, transmission time/date, or the like) related to transmission is transferred to the LAN to notify the information to a user corresponding to the user ID. In this manner, data communication performed by a local operation of the facsimile apparatus and data communication performed by a remote designation from the computer terminal can be managed together.
US08891136B2 Method and system for generating a document having a layered void pantograph
A method and system for generating a document having a void pantograph highlight pattern is presented. The method includes computing a score for a void pantograph highlight pattern layer in relation to a document formatted content layer, incrementing a relative position of the void pantograph highlight pattern layer and the document formatted content layer, repeating the computing and the incrementing steps to obtain a plurality of scores at a plurality of relative positions, evaluating the plurality of scores to determine an optimal alignment, and printing the document using variable-data printing techniques, wherein the printed document has a multi-layer architecture including the document formatted content layer and the void pantograph highlight pattern layer. The system includes a control processor, a score computation unit and an evaluation unit. The control processor provides a printer with data containing a multi-layer architecture document having a document formatted content and a void pantograph highlight pattern.
US08891130B2 Print control terminal device, image forming apparatus, print control method, and image forming method
A print control terminal device, which is connected to an image forming apparatus, includes: a User Interface (UI) unit which receives a print command for a target document; a printer driver unit which detects a transparency region, which is a region to which transparency is applied, from the target document by analyzing one or more rendering commands for each object included in the target document, and generates print data by inserting transparency information into pixel data corresponding to the detected transparency region; and a communication interface unit which transmits the generated print data to the image forming apparatus.
US08891126B2 Systems and method for roll based label printing
A method is provided for laying out labels and other printable items in a gang of print jobs that comprises a first print job and a second print job; laying out the first type of labels consecutively in a first lane, from a start point until one of (a) the end of the first lane is reached and (b) the end of the number of labels is reached for the first type; continuing laying out the first type of labels consecutively in a second lane if the end of the number of labels for the first type is not reached in the first lane; and laying out labels consecutively of the second type starting at the end point of the labels of the first type; and printing the gang of labels according to the layout for the gang of label print jobs. Efficient label printing is enabled.
US08891124B2 Printing apparatus, data control method therein, and storage medium storing program
A printing apparatus prints based on print data in the first state if printing is executable in the first state, and prints based on the print data in the second state different from the first state if printing is not executable in the first state. When deleting print data which meets a predetermined condition, the printing apparatus specifies print data which meets the predetermined condition, among print data which has been printed in the first state.
US08891120B2 Image processing device, image forming device and image processing device management system
An image processing device is connected to a management server that analyzes a data file in which information is described in a predetermined format and provides an administrator with the information. The image processing device includes a data file format management table that arranges and stores data, which is information of the image processing device, an input part that accepts from the user an instruction for changing the data in the predetermined format, a data file format management table update part that rearranges the data stored in the data file format management table based on the instruction, a data file generation part that generates a file by describing the data stored in the data file format management table after the rearrangement, and a communication part that transmits the file as the data file to the management server.
US08891109B2 Printing device capable of displaying thumbnail image of image file
An image processing apparatus comprising an retrieving unit configured to retrieve a first image file representing a motion image and a second image file representing a still image, a display image file generating unit configured to generate, from the first image file, a first single display image file comprising a plurality of frame images extracted from the first image file; a display control unit configured to display the first single display image file and a second single display image file adjacent to each other, the second single display image file comprising the still image represented by the second image file; a selection accepting unit configured to accept a selection of one from among the first single display image file and the second single display image; and a printing data generation unit configured to generate print data to be used for printing based upon the selection.
US08891108B2 Printing system according to detection of the print preview command
A print device according to the present disclosure having a print part for a print operation an image of a print data on a medium includes a memory part configured to memorize a unit price of the medium, and an analysis part configured to analyze whether or not a medium cost determined from the unit price of the medium memorized in the memory part exceeds a predetermined cost, and to create preview data of a print result when the medium cost determined from the unit price of the medium exceeds the predetermined cost.
US08891106B1 Access control system and method for mobile printing
A system and method are configured to provide print services for mobile printing to terminals. A subnet proxy discovers printers on one or more subnets of a network and advertises print services.
US08891105B2 Data printing method and system using the same
A data printing method adapted for a control end device and a system using the data printing method are provided. The data printing method includes steps of: receiving an operation command; splitting printing data into a plurality of split files; sequentially transmitting the split files to a printing device through a main transmission interface; determining whether the main transmission interface is disconnected; if the main transmission interface is disconnected, transmitting the split files that are not yet transmitted through one of at least one substitute transmission interface.
US08891104B2 Secure printing from cloud print server by suspending print job with valid pin code and requesting user pin code when reacquiring job list
A printer performing printing for a cloud print server that provides a print service includes an acquisition unit, a determination unit, a flag enabling unit, a request unit, and a control unit. The acquisition unit acquires a job list from the cloud print server. The determination unit determines presence/absence of a job including a valid PIN code. A valid PIN code indicates that the job is to be secure printed. The flag enabling unit does not enable a suspension flag in response to determining the absence of the job, and enables the suspension flag in response to determining the presence of the job. The request unit requests input of a PIN code if the suspension flag is enabled when the acquisition unit acquires the job list again. The control unit controls printing of the job to be secure printed based on the input PIN code.
US08891095B2 Image forming system and image forming apparatus
An image forming system contains a multifunctional printer that has a plurality of functional units and is capable of controlling transition to a power saving mode for each functional unit. Further, the image forming system includes personal computers and a server. The server, in the power saving mode, sets one or more functional units that are determined to be switched over to the power saving mode from among the plurality of functional units based on time entry, log-in states of users to the personal computers, and a history of past usage of the multifunctional printer.
US08891092B2 Image forming apparatus and image forming method
If pixel segment insertion/extraction control by random number control which is uniform irrespective of a type of image data is performed, in the case of a character or diagram, main scanning positions where the pixel-segment insertion/extraction is executed become discontinuous in a sub-scanning direction, and image quality deteriorates. To solve the above problem, there is provided an image forming apparatus having: a unit for dividing an image into a plurality of areas in the main scanning direction; a unit for setting a reference area for performing pixel segment insertion/extraction control in each of divided areas; and a unit for deciding a position where the pixel segment insertion/extraction control in each of the divided area, in accordance with attribute information of image data in the set reference area.
US08891086B2 Optical scanning systems and methods for measuring a sealed container with a layer for reducing diffusive scattering
Disclosed are apparatus, kits, methods, and systems that include a radiation source configured to direct radiation to a sample; a detector configured to measure radiation from the sample; an electronic processor configured to determine information about the sample based on the measured radiation; a housing enclosing the source, the detector, and the electronic processor, the housing having a hand-held form factor; an arm configured to maintain a separation between the sample and the housing, the arm including a first end configured to connect to the housing and a second end configured to contact the sample; and a layer positioned on the second end of the arm, the layer being configured to contact the sample and to transmit at least a portion of the radiation from the sample to the detector.
US08891081B1 Raman spectroscopy method of measuring melamine contents in dairy products having different matrixes
A raman spectroscopy method of measuring melamine contents in dairy products having different matrixes. The method includes: (a) establishing a database of characteristic curves of dairy products having different matrixes; (b) taking several copies of the dairy products having one certain unknown matrix and adding melamine standard solutions having different concentrations therein, to obtain a series of dairy product samples in which the relative concentrations of the melamine are known; (c) performing raman spectrum testing analysis and obtaining corresponding characteristic peak intensities to obtain a slope of the characteristic curve showing variation of the characteristic peak intensities with the relative concentrations of the melamine; (d) searching the database of step (a) using the slope of the characteristic curve of the dairy product samples to find a matching characteristic curve, and (e) calculating concentration of melamine in the dairy products by using the matched characteristic curve and the characteristic peak intensity.
US08891080B2 Contaminate detection and substrate cleaning
Detection of periodically repeating nanovoids is indicative of levels of substrate contamination and may aid in reduction of contaminants on substrates. Systems and methods for detecting nanovoids, in addition to, systems and methods for cleaning and/or maintaining cleanliness of substrates are described.
US08891077B2 Shack-Hartmann sensor and wavefront measuring method utilizing the same
A wavefront measuring method using a Shack-Hartmann sensor includes the steps of provisionally determining one of a plurality of light receiving elements as a center-of-gravity position in a spot having a light intensity distribution of light condensed on the light receiving element, calculating a distance between the provisionally determined center-of-gravity position and an adjacent center-of-gravity position, setting an area smaller than and inside of a spot that partially overlaps another spot, and setting a spot that does not overlap another spot to the area, calculating a center-of-gravity position for each area, and calculating the wavefront based upon a shift amount between an ideal center-of-gravity position when parallel light enters the micro lens array and the center-of-gravity position of each area.
US08891073B2 Apparatus, system, and method for laser-induced breakdown spectroscopy
In laser-induced breakdown spectroscopy (LIBS), an apparatus includes a pulsed laser configured to generate a pulsed laser signal toward a sample, a constructive interference object and an optical element, each located in a path of light from the sample. The constructive interference object is configured to generate constructive interference patterns of the light. The optical element is configured to disperse the light. A LIBS system includes a first and a second optical element, and a data acquisition module. The data acquisition module is configured to determine an isotope measurement based, at least in part, on light received by an image sensor from the first and second optical elements. A method for performing LIBS includes generating a pulsed laser on a sample to generate light from a plasma, generating constructive interference patterns of the light, and dispersing the light into a plurality of wavelengths.
US08891071B2 Apparatus and method for detecting pressure signals
An apparatus comprising an encoded pressure signal propagating in a fluid flowing in a conduit. An optical fiber measurement element has a reflector on one end and is disposed around at least a portion of the conduit. A light source injects a second optical signal and a third optical signal propagating in first and second optical fibers, respectively. A delay section is disposed in the second optical fiber. The second optical signal and the third optical signal are directed into the optical fiber measurement element and are reflected back from the reflective end such that at least a portion of the reflected second and third optical signals propagate through the second and first optical fibers respectively to an optical detector. The optical detector senses an interference between the reflected optical signals and outputs a first signal related thereto.
US08891069B2 Coherent LIDAR system based on a semiconductor laser and amplifier
The present invention relates to a compact, reliable and low-cost coherent LIDAR (Light Detection And Ranging) system for remote wind-speed determination, determination of particle concentration, and/or temperature based on an all semiconductor light source and related methods. The present invention provides a coherent LIDAR system comprising a semiconductor laser for emission of a measurement beam of electromagnetic radiation directed towards a measurement volume for illumination of particles in the measurement volume, a reference beam generator for generation of a reference beam, a detector for generation of a detector signal by mixing of the reference beam with light emitted from the particles in the measurement volume illuminated by the measurement beam, and a signal processor for generating a velocity signal corresponding to the velocity of the particles based on the detector signal.
US08891065B2 Patterning non-planar surfaces
A system for forming a pattern on a part comprises a chamber base, a pressure vessel and a retaining device. The retaining device is positionable between the chamber base and the pressure vessel to secure a deformable mask therebetween. The system further comprises a first pressure source, a second pressure source and a third pressure source. The first pressure source provides a negative pressure within the chamber to draw the mask towards a part installed within the chamber base. The second pressure source provides a positive pressure within the pressure vessel to direct the mask towards the part so that the mask corresponds to at least one complex non-planar surface of the part. The third pressure source provides a negative pressure within pressure vessel. An exposure source exposes the part through the mask while the mask is deformed corresponding to the at least one complex non-planar surface of the part.
US08891063B2 Lithographic apparatus and device manufacturing method
A lithographic apparatus comprises an object table for receiving an object, an actuator for moving the object table and a handler for transferring the object to or from the object table. The apparatus is provided with a controller operable connected with the actuator and/or the handler. The controller is programmed and/or arranged to drive the actuator and the handler so as to provide that the object table and the handler substantially follow each other in a direction perpendicular to a transfer direction during transfer in the transfer direction of the object to or from the object table.
US08891058B2 Extreme UV radiation generating device comprising a contamination captor
The invention relates to an improved EUV generating device having a contamination captor for “catching” contamination and/or debris caused by corrosion or otherwise unwanted reactions of the tin bath.
US08891055B2 Maintenance method, maintenance device, exposure apparatus, and device manufacturing method
An exposure apparatus is provided with a nozzle member that has at least one of a supply outlet which supplies the liquid and a collection inlet which recovers the liquid. By immersing the nozzle member in cleaning liquid LK stored in container, the nozzle member is cleaned.
US08891054B2 Stage device including a heat insulating sheet supported by an auxiliary member
A stage device includes a base and a stage movable portion that is movable along a surface of the base. An interferometer measures a position of the stage movable portion using measurement light. At least one of a piping element and a wiring element are connected to the stage movable portion. An auxiliary member, including a plurality of members connected with each other along an axial direction of the piping element, guides a bend of the at least one of the piping element and the wiring element. A plurality of heat insulating sheets are supported by the plurality of members of the auxiliary member. The plurality of heat insulating sheets are provided between a space through which the measurement light of the interferometer passes, and the at least one of the piping element and the wiring element.
US08891050B2 Liquid crystal display device and method for fabricating the same
A liquid crystal display device is disclosed. The liquid crystal display device includes: a substrate; gate and data lines arranged to cross each other on the substrate and to define a pixel region; a switching element disposed at an intersection of the gate and data lines; and pixel electrodes and common electrodes arranged alternately with each other and parallel to the data line, within the pixel region. The pixel electrode and the common electrode are formed to have a stacked layer structure of a transparent conductive material layer and an opaque metal layer, each having a line-width of 3.5 μm or less. Such a liquid crystal display device can enhance the transmittance of a pixel region with preventing the chuck stain by forming electrodes in a double layer structure with a transparent conductive material layer and an opaque metal layer.
US08891049B2 In-plane switching mode liquid crystal display device
There is provided an in-plane switching mode liquid crystal display device which includes a lower substrate defined and surrounded by a plurality of gate lines, common lines, and data lines, and including a thin film transistor, a plurality of common electrodes extending from the common line, and a plurality of pixel electrodes extending from a lead interconnection line connected with a drain electrode of the thin film transistor, and having sub-pixels aligned in a matrix shape and divided into an aperture region and a non-aperture region; an upper substrate having sub-color filters and a black matrix completely overlapping with the non-aperture region inside the sub-pixel, formed thereon; and a liquid crystal layer interposed between the lower substrate and the upper substrate.
US08891042B1 Electro-optic liquid crystal camera iris providing angle independent transmission for uniform gray shades
A high-contrast electro-optic liquid crystal camera iris provides angle independent transmission for uniform gray shades. The liquid crystal iris comprises a combination of first and second liquid crystal devices arranged in optical series and positioned between optical polarizers. The director field of the second liquid crystal device is a mirror image of the director field of the first liquid crystal device, and the first and second liquid crystal devices are placed together so that the azimuthal directions of the surface-contacting directors are in parallel alignment at the adjoining or confronting surfaces of the substrates of the first and second liquid crystal devices. The liquid crystal iris provides, therefore, less angular variation of intermediate transmittances compared with that provided by prior art liquid crystal iris.
US08891040B2 Backlight unit and liquid crystal display device
A liquid crystal display device (100) of the present invention includes an edge light type backlight unit (10) and a liquid crystal panel (20). The backlight unit (10) includes a light guide plate (2) and a light source (1) that emits light to a light entrance end surface (2a) of the light guide plate (2). An opposite end surface (2b), of the light guide plate (2), which is opposite to the light entrance end surface (2a), is shaped to have one or more triangular shape(s) or one or more rounded shape(s) in a cross section both in a thickness direction of the light guide plate (2) and in a peak luminance direction of light from the light source (1). Light parallel to the peak luminance direction, which light is from the light source (1), is suitably reflected without being scattered by an inclined surface of the opposite end surface (2b).
US08891033B2 Display device
In a three-dimensional display device using a liquid crystal lens, a planer electrode is formed on an upper substrate of the liquid crystal lens and strip-like electrodes are formed on a lower substrate of the liquid crystal display lens. The distance between the upper and lower substrates is provided by a bead. At this time, if the bead is present on the strip-like electrode, the lens formed thereon is distorted. In order to prevent this, a bump is formed to cover the strip-like electrode. The distance between the bump and the upper substrate is small, so that the bead is pushed out of the upper part of the strip-like electrode, preventing the lens from being distorted. As a result, it is possible to prevent the crosstalk caused by the lens distortion due to the presence of the bead on the strip-like electrode.
US08891031B2 Sensing device and method of sensing a light by using the same
In a sensing device and a method for sending a light by using the same, the sensing device includes: a lower panel; an upper panel facing the lower panel; a liquid crystal layer disposed between the lower panel and the upper panel; an infrared ray sensor formed in at least one of the lower panel and the upper panel; and a visible ray sensor formed in at least one of the lower panel and the upper panel. The sensing device simultaneously includes the infrared ray sensor and the visible ray sensor such that a touch sensing function or an image sensing function having high reliability may be realized.
US08891021B2 System and method of detecting strobe using temporal window
A video processing device is provided that includes a buffer, a luminance component, a maximum threshold component, a minimum threshold component and a flagging component. The buffer can store frame image data for a plurality of video frames. The luminance component can generate a first luminance value corresponding to a first frame image data and can generate a second luminance value corresponding to a second frame image data. The maximum threshold component can generate a maximum indicator signal when the difference between the second luminance value and the first luminance value is greater than a maximum threshold. The minimum threshold component can generate a minimum indicator signal when the difference between the second luminance value and the first luminance value is less than a minimum threshold. The flagging component can generate a flagged signal based on the maximum indicator signal and the minimum indicator signal.
US08891020B2 Method and apparatus for automatically categorizing potential shot and scene detection information
A method and apparatus are provided for categorizing pre-processing video information derived from video content prior to processing the video content. The apparatus includes a categorizer for identifying at least one of scenes and shots in the video content that have a likelihood of causing errors during subsequent processing based on at least the pre-processing video information. Moreover, the categorizer is for categorizing the identified scenes and shots into one or more respective categories based on at least the pre-processing video information.
US08891017B2 Video processing apparatus, display apparatus, and video processing method
A video input section acquires a video signal formed of a plurality of frames. A frame separator separates the video signal acquired by the video input section on a frame basis and distributes the separated video signals. A plurality of parallel processors perform video processing in parallel on the separated video signals corresponding to the frames separated and distributed by the frame separator. A frame combiner combines the separated video signals on which the plurality of parallel processors have performed the video processing.
US08891014B2 Systems and methods for latency stabilization over an IP network
An exemplary embodiment of the present invention provides a latency stabilization system for stabilizing the display latency between a source and a renderer over an IP network. The latency stabilization system comprises a frequency syntonization module, a frequency lock detection module, and a phase correction module. The frequency syntonization module can be configured to syntonize a frequency of a source signal from the source and a frequency of a display signal to be displayed on the renderer. The frequency lock detection module can be configured to detect whether the frequency of the source signal and the frequency of the display signal are locked. The phase correction module can be configured to, synchronize a phase of the source signal and a phase of the display signal, and generate correction data based in part on synchronization of the phase of the source signal and the phase of the display signal.
US08891005B2 Imaging apparatus
An imaging apparatus includes a lens unit including a lens and an image sensor, a lens unit supporting unit for supporting the lens unit, a base unit for supporting the lens unit supporting unit in a manner that can tilt, a fixing base unit for supporting the base unit, a dome cover mounted to the fixing base unit, and an elastic member for elastically supporting the lens unit so that the lens unit can perform a retreat operation in an opposite direction from an object and along an optical axis direction of the lens unit when a force is applied thereto from the dome cover and even if the lens unit supporting unit leans in a tilt direction.
US08891000B2 System and method of driving shutter by tendency of moving object
A system and method of driving shutter by an object moving tendency. In this method, an image capture process is performed, wherein a sensor captures a first image of a moving object in a first resolution in the image capture process. Then, a prediction moving module analyzes the first image to acquire a prediction time for the moving object to reach a feature position. Finally, an automatic shutter control process is performed according to the prediction time, and a second image with a second resolution is captured, wherein the value of the second resolution is larger than that of the first resolution. This method automatically captures the second image of the moving object when situated at the feature position by using the prediction moving system to analyze the moving object.
US08890995B2 Image pickup apparatus, semiconductor integrated circuit and image pickup method
An image pickup device includes an image pickup element; a lens optical system including a focus lens; a driving section for driving one of the image pickup element and the focus lens so as to change a distance between the image pickup element and the focus lens; a displacement control section configured to output an instruction to the driving section to control displacement of the image pickup element or the focus lens which is driven, based on a prescribed displacement pattern; and a synchronization section configured to control the displacement control section based on timing for exposing the image pickup element.
US08890992B2 Mobile electronic device
A mobile electronic device 10 includes a projector 34, a camera 36, and a processing unit 22. The projector 34 projects an image, and the camera 36 captures the image projected by the projector 34. Based on first image information for causing the projector 34 to project a predetermined image and second image information obtained by capturing the image projected by the projector 34 based on the first image information by the camera 36, the processing unit 22 determines whether the projector 34 projects the predetermined image. When determining that the projector 34 fails to project the predetermined image, the processing unit 22 suppresses output of the projector 34 for projecting the image.
US08890982B2 Solid-state imaging device and driving method as well as electronic apparatus
A solid-state imaging device includes first and second sets of pixels. The first pixels have light reception elements and a discharging unit that discharges charge corresponding to light received by the first pixels. The second pixels have corresponding light reception elements but are covered with a light shielding film. Signals stored in the second light reception elements are read to a next stage when the discharging units corresponding to the first light reception elements are enabled.
US08890978B1 Accurately extracting information using multiple images
During an information-extraction technique, a user of the electronic device may be instructed by an application executed by an electronic device (such as a software application) to point an imaging sensor, which is integrated into the electronic device, toward a location on a document. For example, the user may be instructed to point a cellular-telephone camera toward a field on an invoice. After providing the instruction, the electronic device captures multiple images of the document by communicating a signal to the imaging device to acquire the images. Each of these images has an associated exposure setting with a different point of interest proximate to the location). Then, the electronic device stores the images and the points of interest. Furthermore, the electronic device analyzes the images to extract the information proximate to the location on the document.
US08890973B2 Image processing apparatus, image processing method, and storage medium
An image processing apparatus includes a first calculation unit configured to calculate a first white balance correction value for correcting white balance for image data based on a pixel value in a divided region, among a plurality of divided regions into which the image data is divided, where a color evaluation value is within a predetermined color range, and a second calculation unit configured to calculate, if the first white balance correction value is at a high temperature side of a predetermined threshold value, a second white balance correction value for correcting white balance for the image data based on a pixel value in a divided region within a color range where a color range at a low temperature side of the predetermined color range is limited.
US08890971B2 Image processing apparatus, image capturing apparatus, and computer program
An image processing section includes: a motion vector calculation section for receiving information representing the magnitude of motion of an image capturing section and calculating a motion vector by performing a matching operation between first and second frames within a search range determined based on the magnitude of motion (a first search range and a second search range different from the first search range); and an interpolation frame generating section for generating an interpolation frame in accordance with the motion vector calculation result.
US08890970B2 Portable hand-held device having stereoscopic image camera
A portable hand-held device is provided having a digital camera and a processor. The digital camera has two image sensors respectively arranged to capture corresponding images of the same scene. The processor image processes the images captured by the image sensors so as to output three dimensional stereoscopic images. The processor has two interfaces for respectively receiving the images captured by the image sensors.
US08890969B2 Portable device with image sensors and multi-core processor
A portable device that has first and second image sensors and a central processor. The central processor has a first sensor interface and a second sensor interface for receiving data from the from the first and second image sensors respectively such that the data is simultaneously processed in the multiple processing units. The central processor integrates the multiple processing units and the first and second sensor interfaces onto a single chip.
US08890968B2 Image capturing apparatus and control method therefor with defect correction information used both for defective pixel and detection pixel identification
An image capturing apparatus includes an image sensor 104 in which at least part of pixels arranged in two dimensions are configured as focus detection pixels with divided-pupil, a memory control circuit 113 configured to read out from a memory position information for the focus detection pixels 401, 402 stored in the memory, and a correction circuit 110 configured to identify positions of the focus detection pixels 401, 402 in the image sensor 104 based on the position information for the focus detection pixels 401, 402 and to correct a defective focus detection pixel signal using defect-free focus detection pixel signals.
US08890967B2 Method apparatus for controlling exposure amount of an imaging device
An imaging control unit includes: a calculating unit that obtains block brightness-values of a plurality of blocks from each pixel of an image data of a frame, the image data of a frame being divided into the plurality of blocks; a limiting unit that limits to a first limit brightness-value a block brightness-value which is larger than the first limit brightness-value among the plurality of block brightness-values; and a controlling unit that controls an exposure amount of an imaging unit so that a representing brightness-value of the plurality of the block brightness-values correspond to a target brightness-value which is less than first limit brightness-value.
US08890963B2 Image quality evaluation device, terminal device, image quality evaluation system, image quality evaluation method and computer-readable recording medium for storing programs
The present invention evaluates the quality of an image shot by a terminal device in a state closer to that seen with the eye. A computer evaluates the quality of an image obtained by shooting a photographic subject including a periodic pattern that fluctuates periodically in one direction. A Fourier transform unit accomplishes a two-dimensional Fourier transform on the image to obtain two-dimensional spatial frequency spectrum components. An analysis unit analyzes the resolution of the image on the basis of spectrum components of spatial frequencies included in the periodic pattern, among the two-dimensional spatial frequency spectrum components obtained by the Fourier transform unit, and analyzes the deterioration of the image on the basis of spectrum components other than these.
US08890960B2 Digital camera
A digital single-lens reflex camera that can reduce deterioration in image quality due to a camera shake or an object movement and easily pick up an image with a good image quality. In the digital single-lens reflex camera, when a body microprocessor judges that an object speed detected based on a detected object movement is smaller than a threshold value, a conversion lens camera shake correcting device in a conversion lens or a camera body shake correcting device in a camera body is controlled to carry out camera shake correction. If the object speed is equal to or more than the threshold value, the body microprocessor makes a digital signal gain setting unit high in gain so as to increase the ISO sensitivity or makes a shatter speed faster to set a shorter exposure time and has a plurality of images continuously picked up under different exposure conditions.
US08890959B2 Configuration of image capturing settings
There is provided a method for configuring a set of image capturing settings of a camera for a first scene condition type currently viewed by the camera. The method comprises detecting the first scene condition type; instructing the camera to acquire a plurality of test images, each test image corresponding to a set of image capturing settings; receiving input relating to a selected test image, and storing the set of image capturing settings corresponding to the selected test image as the configured set of image capturing settings for the first scene condition type to be used by the camera upon future detections of the first scene condition type.
US08890955B2 Adaptable wireless vehicle vision system based on wireless communication error
A vision system for a vehicle includes a camera subsystem and a display subsystem. The camera subsystem includes an imaging sensor disposed at an equipped vehicle that captures image data, and the camera subsystem wirelessly transmits the image data. The display subsystem includes a video display screen disposed in the equipped vehicle for displaying images for viewing by a driver of the equipped vehicle when the driver is normally operating the equipped vehicle. The display subsystem is operable to receive the transmitted image data from the camera subsystem. The display subsystem transmits an error signal responsive to processing of the image data and the camera subsystem receives the error signal and at least one of (a) adjusts a compression factor of the image data responsive to the error signal and (b) adjusts a transmission rate of the image data responsive to the error signal.
US08890951B2 Clear path detection with patch smoothing approach
A method for detecting a clear path of travel for a vehicle utilizing analysis of an image generated by a camera device located upon the vehicle includes monitoring the image, identifying through patch-based clear path detection analysis of the image a first patch within the image that indicates a not clear path, analyzing the first patch through patch smoothing, invalidating the first patch based upon the analyzing the first patch through patch smoothing, utilizing the invalidated first patch to define a clear path of travel for the vehicle, and utilizing the clear path of travel to navigate the vehicle.
US08890950B2 Methods and arrangements for processing image data
The present disclosure provides methods and systems for processing data. One claim recites a method practiced using used a user's camera-equipped portable computer system. The method includes the acts of: capturing image data corresponding to a region using the camera of the portable computer system; applying a filter to the captured image data, in which the filter prioritizes image data at a center of the region and averages images data at a relative distance from the center region; and searching the filtered image data for hidden keys. Of course, other combinations and claims are provided as well.
US08890946B2 Systems and methods for spatially controlled scene illumination
A scene illumination system is provided that produces spatially uniform or controlled brightness levels for machine vision applications. The system includes a camera, multiple light sources that preferentially illuminate different regions within the camera's field-of-view, and a processing unit coupled to the camera and light sources. Focal regions of the light sources within the camera's field-of-view are sampled to determine average regional brightness and compared to target brightness levels. The processing unit controls the light sources to increase or decrease illumination levels to converge toward the target brightness levels within the field-of-view. This modulation of the light sources may be repeated with successive video images until target brightness levels are achieved. Once achieved, the iterative feedback control may be locked-in for some applications, while for others, the iterative process may continue periodically or continuously to account for different scenes or changes in lighting conditions.
US08890944B1 Firearms pulverizer system and method
A firearms pulverizer system is disclosed which comprises a pulverizer unit having an inlet chute, a cutting chamber, and an outlet, a first image capturing device positioned above the inlet chute for capturing an image of an identification number associated with a firearm, and a second image capturing device positioned above the cutting chamber for recording destruction of the firearm inserted into the cutting chamber.
US08890943B2 Three dimensional image system
The present disclosure relates to a three-dimensional image system. The present disclosure suggests a three dimensional image system comprising: a display device configured to suggest a left image and a right image alternately; a liquid crystal shutter having a liquid crystal layer and configured to switch between a λ/2 phase retardation state and a 0 phase retardation state; polarized glasses including a right glass window having a first polarization axis and a left glass window having a second polarization axis. According to the present disclosure, the left image and the right image can be exactly recognized by the left eye and the right eye, respectively, without any cross-talk problem.
US08890941B2 Methods and apparatuses for viewing three dimensional images
Systems and methods for viewing stereoscopic television are described. The methods generate stereoscopic views from 3D content; synchronize with external view ware (e.g., shuttered glasses) to include shutter information and viewing geometry; sequence 3D content for multiple viewers at multiple perspective views; and output to a display component for viewing.
US08890940B2 Stereo image capture and processing
Apparatus and systems, as well as methods and articles, may operate to capture a portion of an omniscopic or omni-stereo image using one or more image capture media. The media may be located substantially perpendicular to a converging ray originating at a viewpoint on an inter-ocular circle and having a convergence angle between zero and ninety degrees from a parallel viewpoint baseline position that includes a non-converging ray originating at the viewpoint. The media may also be located so as to be substantially perpendicular to a non-converging ray originating at a first viewpoint at a first endpoint of a diameter defining an inter-ocular circle, wherein the origin of the non-converging ray gravitates toward the center of the inter-ocular circle as spherical imagery is acquired.
US08890938B2 Digital photographing apparatus and method of controlling the same
A digital photographing apparatus and a method of controlling the same. The digital photographing apparatus that generates a 3D image includes a digital signal processing unit that generates the 3D image based on a first image obtained by photographing a predetermined object and a second image sent from another digital photographing apparatus photographing the object.
US08890936B2 Utilizing depth information to create 3D tripwires in video
A method of processing a digital video sequence is provided that includes detecting a foreground object in an image captured by a depth camera, determining three-dimensional (3D) coordinates of the foreground object, and comparing the 3D coordinates to a 3D video tripwire to determine if the foreground object has crossed the 3D video tripwire. A method of defining a 3D video tripwire is also provided.
US08890934B2 Stereoscopic image aligning apparatus, stereoscopic image aligning method, and program of the same
A stereoscopic image aligning apparatus (200) automatically aligns image pairs for stereoscopic viewing in a shorter amount of time than conventional apparatuses, which is applicable to image pairs captured by a single sensor camera or a variable baseline camera, without relying on camera parameters. The stereoscopic image aligning apparatus (200) includes: an image pair obtaining unit (205) obtaining an image pair including a left-eye image and a right-eye image corresponding to the left-eye image; a corresponding point detecting unit (252) detecting a corresponding point representing a set of a first point included in a first image that is one of the images of the image pair and a second point included in a second image that is the other of the images of the image pair and corresponding to the first point; a first matrix computing unit (254) computing a homography transformation matrix for transforming the first point such that a vertical parallax between the first and second points is smallest and an epipolar constraint is satisfied; a transforming unit (260) transforming the first image using the homography transformation matrix; and an output unit (210) outputting: a third image that is the transformed first image; and the second image.
US08890928B2 Method, system and device for conference switching
Embodiments of the present invention provide a method, system and device for conference switching, relating to communications technologies, which solve the technical problem in the prior art that the operation during conference switching is complicated and user experience is poor. The method embodiments of the present invention include: receiving, from a conference terminal, a switching request message requesting switching to a destination conference, where the switching request message includes information of the destination conference; and determining, according to the switching request message, to switch to the destination conference indicated by the information, and performing the process of switching to the destination conference. The embodiments of the present invention are mainly applicable to the field of multimedia communication technologies.
US08890927B2 Visual telephony apparatus, system and method
A visual telephony apparatus, system and method are provided. In one embodiment, the visual telephony method includes a method implemented using a processor, the method including the steps of: detecting at least one telephony attribute associated with a voice call directed from a voice communication device to a publicly switched telephone network number; identifying a visual content that has been preassociated with the at least one telephony attribute; initiating a request for the visual content in response to the detecting step; and receiving the visual content in response to the initiating step, the visual content being received at a display device.
US08890924B2 Video conference control method and conference terminal
The present invention discloses a video conference control method and a conference terminal. The method includes: receiving multi-video information, where the multi-video information includes videos of at least two remote conference sites; displaying the multi-video information on a display screen, where the display screen includes a main video display area and an auxiliary video selection area; and performing, according to a received conference control operation request, a corresponding conference control operation on a conference site corresponding to a video displayed in the auxiliary video selection area. According to the present invention, the display screen is divided into the main video display area and the auxiliary video selection area, so that a user may perform a conference control operation on a video of a remote conference site through the auxiliary video selection area, a conference site that needs to be viewed is displayed in the main video display area.
US08890923B2 Generating and rendering synthesized views with multiple video streams in telepresence video conference sessions
Techniques are provided for establishing a videoconference session between participants at different endpoints, where each endpoint includes at least one computing device and one or more displays. A plurality of video streams is received at an endpoint, and each video stream is classified as at least one of a people view and a data view. The classified views are analyzed to determine one or more regions of interest for each of the classified views, where at least one region of interest has a size smaller than a size of the classified view. Synthesized views of at least some of the video streams are generated, wherein the synthesized views include at least one view including a region of interest, and views including the synthesized views are rendered at one or more displays of an endpoint device.
US08890922B2 Video communication method, device and system
In the field of communication, embodiments of the present invention provide a video communication method, device and system. The technical solutions provided by the present invention include: at least two local video cameras, configured to shoot at least two channels of local video images; an apparatus for local shooting, stitching, and fusing, configured to fuse the at least two channels of local video images, generate a panoramic video image, encode the panoramic video image into a video code stream, and transmit the video code stream to a video communication site at a remote end; a local display fusing apparatus, configured to obtain at least two channels of video data by decoding a video code stream received from the remote end, fuse the at least two channels of video data, and output the fused video data to local display apparatuses for display.
US08890915B2 Printing method and apparatus
A thermal transfer printer comprises a print head drive mechanism that is configured to reciprocally move a print head parallel to movement of a carrier ribbon past the print head. A controller is configured to control the print head drive mechanism to move the print head in a first direction along the carrier ribbon to transfer ink material from the carrier ribbon to a substrate to print a first portion of an image on a first area of the substrate. The controller is also configured to control movement of the print head in a second direction opposite to the first direction as the carrier ribbon and substrate are also moved in the second direction to position the print head relative to the carrier ribbon so that a second portion of the image is printed on a second are of the substrate adjacent to the first area of the substrate.
US08890914B1 Thermal printer with easy assebly
A thermal printer includes a casing, a thermal head module and a guiding component. The thermal head module is detachably installed inside the casing, and the thermal head module includes a bracket, a thermal head and a pivoting component. The thermal head is installed on the bracket, and the pivoting component is disposed on an end of the bracket. The pivoting component is pivotally engaged with the casing. The guiding component is rotatably installed inside the casing and for guiding a printing medium. The guiding component includes a holding portion for holding the pivoting component of the thermal head module as the guiding component rotates in a first rotating direction relative to the casing, so as to drive the pivoting component to separate from the casing, so that the thermal head module is detached from the casing.
US08890910B2 Image display based on multiple brightness indicators
Methods for controlling light sources in displays in response to image data determine both a central tendency for brightness and an upper extreme for brightness of an area of an image. Brightness of a light source is controlled based upon both the central tendency and the upper extreme. Controllers in displays such as televisions, computer monitors, digital cinema and the like may control light source in a manner that reduces or avoids perceptible haloing.
US08890908B2 Method and apparatus for display calibration
A calibration system may be provided for calibrating displays in electronic devices during manufacturing. The calibration system may include calibration computing equipment and a test chamber having a light sensor. The calibration computing equipment may be configured to operate the light sensor and the display to gather display intensity performance data for obtaining a display gamma model. The display intensity performance data may be gathered using a range of display control settings that will be used in performing color calibration operations for the display. The calibration computing equipment may be configured to operate the light sensor and the display to gather display color performance data for determining a display white point calibration. Display white point calibration data may be provided to the electronic device and stored in volatile or non-volatile memory in the device or may be permanently stored in circuitry associated with the display.
US08890907B2 Method of controlling electro-optical device, control device for electro-optical device, electro-optical device, and electronic apparatus
A method of controlling an electro-optical device includes controlling a driving section such that, when an image is rewritten from a first image displayed in a first gradation to a second image including a background image portion to be displayed in the first gradation and a main image portion to be displayed in a second gradation, the same potential as a counter electrode is supplied to a pixel in the background image portion, and a potential corresponding to the second gradation is supplied to a pixel in the main image portion. The driving section is controlled such that at least one of the magnitude and application time of a voltage applied between the pixel electrode and the counter electrode is smaller in a pixel corresponding to an edge portion in the main image portion than in a pixel corresponding to a non-edge portion in the main image portion.
US08890905B2 Reflectors with spatially varying reflectance/absorption gradients for color and luminance compensation
A Point Spread Function (PSF) of a light source is controlled by the provision of a PSF modifier on a reflector at or near the light source. The modifier may be a gradient or spatially varying application of any of transmission holes, filters, and absorptive dots. The invention may be applied to displays (e.g., backlighting of displays), and arrangement of the modifiers may include patterns that vary according to artifacts occurring in the display. The PSF modifier may flatten, remove, or increase tails, or mitigate fringing colors or patterns. In backlight arrays, the PSF modifier may be similar for all centrally located light sources, and exhibit differences when applied to light sources near edges or other anomalies in the backlight or surrounding structure.
US08890900B2 Liquid crystal display and method of local dimming thereof
A liquid crystal display includes a display panel, a backlight unit providing light to the display panel, a representative value adjusting unit that divides an input image in conformity with a plurality of blocks divided from the display panel and a light emitting surface of the backlight unit, selectively adjusts a representative value of each block based on a luminance difference between the blocks and a grayscale banding degree of each block, and generates a modified representative value of each block, a dimming value determining unit that maps the modified representative value of each block to a predetermined dimming curve and selects a dimming value of each block, and a light source driver for driving light sources of the backlight unit based on the dimming value of each block.
US08890895B2 User interface device, user interface method and information storage medium
To allow a user to issue an adequate instruction concerning a process in connection with a plurality of discrete objects placed in a virtual space. A user interface device comprises a virtual space image display section for producing an image of a virtual space where a plurality of objects are placed, on a real time basis according to a position of a viewpoint defined in the virtual space, and sequentially displaying the image; a viewpoint position change section for changing the position of the viewpoint defined in the virtual space according to a first operation by the user; and an object selection section for selecting one or more objects among the objects placed in the image displayed by the virtual space image display section, according to a second operation by the user.
US08890890B2 Pluggable web-based visualizations for applications
The pluggable web-based visualization technique described herein pertains to a method for providing pluggable web-based visualizations for applications. The method selects visualizations from the web to be embedded into a host application on a desktop computing device. The visualizations can be plugged in to a variety of host applications. This empowers end-users, application designers, and visualization designers by allowing greater reuse of existing code. Additionally, end-users do not have to wait for new revisions of existing applications to use the latest techniques. Designers of domain specific visualizations can work on just the visualization and have them incorporated into a variety of different host applications. Users can perform local processing and visualizations on their own machine, yet obtain new visualizations from the web where they can be updated more frequently and where special purpose visualizations are available.
US08890885B1 Efficiently copying and blending a source region into a target region
A method and apparatus for copying and blending a source region of an image into a target region of an image is presented herein. Specifically, a method is described for generating a difference color map from colors sampled in a source region and colors sampled just outside of a target region. The difference color map is applied to the source region stored. The results are stored in the target region. If no additional input has been received to modify the source region or the target region, then a larger difference color map may be generated and used to copy and blend the source region into the target region. A source region may appear to be better blended into the target region if a larger difference color map is used.
US08890881B2 Mapping method and video system for mapping pixel data included in the same pixel group to the same bank of memory
Provided are a mapping method and a video system for mapping pixel data included in the same pixel group to the same bank of a memory, A method for mapping the position of pixel data of a picture to an address of a memory comprises a pixel group dividing operation and an address mapping operation. The pixel group dividing operation divides the pixels of the picture into at least one pixel group. The address mapping operation maps pixel data of pixels included in the same pixel group to the same bank of the memory.
US08890880B2 Graphics pipeline scheduling architecture utilizing performance counters
A method, device, and system are disclosed. In one embodiment the method includes determining a current computing-memory ratio. Then the method compares the current computing-memory ratio to a lower ratio threshold value. Then the method configures a next draw command to be performed using a graphics memory efficiency operational mode when the current computing-memory ratio is below the lower ratio threshold value.
US08890879B1 Update traversal of object trees for multiprocessor systems
A system may include a processor and memory that stores instructions to cause the processor to create a first set of objects in a first structure based on first data, where the first set of objects describes a graphical scene specified by the first data. The processor may add a command for at least one object, of the first set of objects, to a composite command that includes commands for the graphical scene and create a second set of objects in a second structure based on the first set of objects in the first structure and the composite command. The processor may receive second data, change one or more objects of the first set of objects based on the second data, and change one or more objects of the second set of objects based on the changes to the one or more objects of the first set of objects. The processor may further provide the changed second set of objects to a browser for rendering a new graphical scene.
US08890870B2 System and method for visualizing relationships between objects
A graphical user interface transforms objects into nodes and relationships that are shared between the objects into edges. The edges are labeled with the relationship types. Multiple edges are ordered automatically or manually. Multiple edges are collapsed onto a single line and labels applied to the single line for each collapsed edge. The labels applied to the single line are ordered along the line according to relationship type. When there are multiple types of relationships within the same class, each class is collapsed onto a single line and ordered accordingly. A user selects the objects that are displayed by the GUI. The user can add additional objects or relationships and filter the results.
US08890868B2 Three dimensional image data processing
An apparatus generates three dimensional image data. Specifically, image data for a first image layer and image data for a second image layer is generated together with depth indication data for at least one of the first image layer and the second image layer. The two image layers may be used e.g. for dependent images, such as foreground and background images, or for independent images, such as initial and final images for a cross fade. A dependency indicator which is indicative of a dependency between the image layers is generated and included in the three dimensional data. A rendering device may receive the three dimensional data and generate images for a three dimensional representation based on the data. The three dimensional processing is adapted in dependence on the dependency indicator. For example, interlayer de-occlusion processing may only be performed if the dependency indicator is indicative of dependent image layers.
US08890866B2 Method and apparatus of providing street view data of a comparable real estate property
Video drive-by data provides a street level view of a neighborhood surrounding a selected geographic location. A video and data server farm incorporates a video storage server that stores video image files containing video drive-by data corresponding to a geographic location, a database server that processes a data query received from a user over the Internet corresponding to a geographic location of interest, and an image processing server. In operation, the database server identifies video image files stored in the video storage server that correspond to the geographic location of interest contained in the data query and transfers the video image files over a pre-processing network to the image processing server. The image processing server converts the video drive-by data to post-processed video data corresponding to a desired image format and transfers the post-processed video data via a post-processing network to the Internet in response to the query.
US08890864B2 Mobile terminal and controlling method thereof
A mobile terminal and 3D image controlling method therein are disclosed to create a 3D image. The present invention includes displaying a map in a prescribed range on a display unit with reference to a current location, setting 1st area to create a 3D space image on the display map, displaying a 1st shot location information for obtaining a plurality of right and left eye images within the set 1st area using at least one of a distance information and an angle information, consecutively obtaining a plurality of the right and left eye images within the set 1st area, creating a source image of the 3D space image for the 1st area by synthesizing a plurality of the obtained right and left eye images together, and outputting the created source image to be outputted as a 3D image of a stereoscopic type via the display unit.
US08890860B2 Stereoscopic EL display device with driving method and eyeglasses
The present invention relates to an EL display device in which a stereoscopic image is perceived and eyeglasses having a switching means with which an image for a left eye or an image for a right eye is selectively perceived. The image for the left eye and the image for the right eye are displayed in a display portion of the EL display device by holding an image signal from a signal line in a first capacitor in a first period, holding the image signal held in the first capacitor in a second capacitor to control current that flows through an emission-control transistor in a second period, and turning on a driving transistor to control light emission of a light-emitting element and holding an image signal from a signal line in the first capacitor in a third period.
US08890853B2 In-pixel ultrasonic touch sensor for display applications
A video display is provided with a planar piezoelectric transmitter to transmit ultrasound signals, and a display panel including a plurality of pixels. Each pixel has a data interface to accept a video signal with a variable voltage associated with a range of light intensity values, and to supply a touch signal with a variable voltage derived from a range of reflected ultrasound signal energies. Each pixel is made up of a light device to supply light with an intensity responsive to the video signal voltage, and a storage capacitor to maintain a video signal voltage between refresh cycles. A piezoelectric transducer accepts a reflected ultrasound signal energy and maintains a touch signal voltage between refresh cycles. In one aspect, the storage capacitor and the piezoelectric transducer are the same device. The light device may be a liquid crystal (LC) layer or a light emitting diode.
US08890848B2 Optical touch device
An optical touch device includes: two light beam scanning modules each scanning a touch region of a panel body with a scanning light beam, whose incident angle varies with time, and outputting a time index signal associated with the incident angle; two light sensor modules each sensing a corresponding reflected scanning light beam generated due to presence of a touch within the touch region so as to output a sensing signal; and a processing unit for locating the touch based on the time index signal from each light beam scanning module, the sensing signal from each light sensor module, and a look-up table having pieces of angle information corresponding to a series of time indexes and associated with the incident angle of each scanning light beam.
US08890847B2 Optical touch system and touch point calculation method thereof
An optical touch system and a touch point calculation method thereof are provided. The optical touch system includes a first lens, a second lens and a screen. The first and second lenses are disposed on the same side of the screen and face to the other side of the screen. In the method, images of a touch object above the screen are captured and used to calculate a first and a second touch signal of the touch object touching the screen before and after a preset time. Then, it is determined whether a width difference of the first and second touch signals exceeds a predetermined threshold. If yes, a third touch signal corresponding to the first touch signal relative to the second touch signal is calculated. Finally, positions of the first touch signal and the third touch signal are taken as locations of two touch points on the screen.
US08890846B2 System and method for touchless switch interface
A method and system for guiding a trigger agent to activate a touchless switch having a proximity sensor and a plurality of activatable indicator lights. The method comprises detecting the trigger agent within a proximity threshold, activating at least one of the indicator lights according to a first indicator format, detecting a continuing presence of the trigger agent to progressively activate additional indicator lights as the trigger agent continues within the proximity threshold, detecting a retracting movement of the trigger agent away from the proximity sensor to progressively de-activate the activated indicator lights as the trigger agent retracts, and in response to detecting that the trigger agent has reached an activation time threshold, activating the touchless switch while activating the indicator lights according to a second indicator format.
US08890845B2 Optical touch screen
An optical touch structure including a light guide element, a light source, a reflecting mirror, and an image sensor is provided. The light guide element has a light-emitting surface. The light guide element guides the light provided by the light source to the light-emitting surface. The extending direction of the reflecting mirror is substantially perpendicular to the light-emitting surface. The intersection of the reflecting mirror and the light guide element is defined as a first position. The light guide element and the reflecting mirror define a touch range. The image sensor is disposed on a second position opposite to the first position. The sensing area of the image sensor at least covers the touch range. When the proceeding path of the first direction light is shorter than that of the second direction light, the strength of the second direction light is larger than that of the first direction light.
US08890842B2 Eraser for use with optical interactive surface
An eraser is usable in a display system having a display surface. The eraser includes one or more optical detection elements for determining the coordinates of the eraser relative to the display surface.
US08890840B2 Method and apparatus for using oscillation signals with different phases to detect capacitance values at capacitive sensing nodes of touch panel
A method for detecting capacitance values of a plurality of capacitive sensing nodes located at intersections of a plurality of drive lines and a sense line on a touch panel is provided. The method includes at least the following steps: obtaining a plurality of touch sense signals corresponding to the sense line during a plurality of time slots, respectively; demodulating the touch sense signals with a first oscillation signal to generate a plurality of first demodulated signals; demodulating the touch sense signals with a second oscillation signal to generate a plurality of second demodulated signals, wherein the second oscillation signal is different from the first oscillation signal; and determining the capacitance values according to at least the first demodulated signals and the second demodulated signals.
US08890839B2 Capacitive proximity switch
A capacitive proximity switch having a display panel including a translucent region. A first circuit board is translucent to light at least in the region of the translucent region of the display panel and supports capacitance-forming sensor layers. Light wells enclose the sensor layers on the side facing away from the observer, and protrude from the first circuit board to a second circuit board parallel to the first circuit board. Light sources are disposed within the light wells. A contact element leads from the first circuit board to the second circuit board. Optical fibers are applied on the first circuit board in the region of the translucent region. The first circuit board is encapsulated by an opaque plastic functional carrier. An opaque decorative layer covers the observer side of the optical fibers and the functional carrier, and includes characters and/or symbols in the region of the translucent region.
US08890828B2 Digitizer
Disclosed herein is a digitizer including: an input unit having a magnetic field shielding part embedded therein; a driving coil supplied with current to induce a magnetic line of force; a sensing coil to which voltage is induced by the magnetic line of force; and a control unit supplying current to the driving coil and measuring voltage induced to the sensing coil, wherein the control unit senses variation of voltage induced to the sensing coil to calculate coordinates of the input unit when the voltage induced to the sensing coil is changed by the magnetic field shielding part.
US08890827B1 Selected content refinement mechanisms
Computer-implemented methods for refining a selection of content using touch input are provided. In one aspect, a method includes receiving a first touch input from a user for selecting content displayed on a device, providing, for display, a visual indicator of the content that has been selected, and receiving a second touch input indicating a refinement to the selection of the content. The refinement of the selection of the content is based on at least one referent entity identified with the selected content. Systems and machine-readable media are also provided.
US08890823B2 System and method for reducing occurrences of unintended operations in an electronic device
A method of operating an electronic device, and an electronic device, are disclosed in which occurrences of unintended operations of the electronic device, such as can occur in response to inadvertent actuations of actuators of the electronic device, are reduced. In one example embodiment, the method 500 includes detecting 510 an actuation of a first sensor that is associated with a first touch-sensitive component of the electronic device, and acquiring 512 data from an additional sensor of the electronic device. The method also includes determining 518, based at least in part upon the data, whether the actuation is valid, and either performing 524 or refraining 522 from performing at least one operation based at least in part upon the determining. In at least one additional embodiment, the first sensor is a piezoelectric sensor and the additional sensor is an accelerometer.
US08890822B2 Method for controlling operations of a touch panel
A method for controlling operations of a touch panel includes synchronizing timing of a plurality of gate lines and timing of a plurality of touch sensors; determining whether polarities of common voltages of a display layer are consistent when driving signals are outputted to a first gate line and a second gate line, the second gate line following the first gate line; and if the polarities are consistent, outputting at least one driving pulse to a touch sensor of the plurality of touch sensors after image data corresponding to the second gate line is transmitted to the display layer.
US08890817B2 Centralized processing of touch information
Centralized processing of touch information obtained by multiple touch sensing controllers connected to a touch sensing surface is provided. Each touch controller can obtain touch information of sense signals from different sense lines of the touch sensing surface and can store the touch information in a corresponding memory of the controller. The touch information of one or more of the touch sensing controllers can be transmitted as results data to a processor that processes all of the touch information. In some cases, prior to transfer of the results data, a determination of the validity of a sense channel can be made, and invalid channels can be excluded from the transfer.
US08890816B2 Input system and related method for an electronic device
An input system for an electronic device including a main body includes an input device installed outside of the main body, comprising a plurality of input units denoted by a plurality of corresponding input symbols, a control device installed outside of the main body for pressing at least one of the plurality of input units for generating an indication signal, a camera for taking an image of the control device pressing the input unit, the image including the indication signal, and an image processing unit installed in the main body and coupled to the camera, for recognizing the pressed input unit according to a location of the indication signal in the image and generating input data corresponding to an input symbol denoting the pressed input unit.
US08890815B2 Incorporating chromatic sensors in computer mice
Methods and apparatuses are disclosed that incorporate chromatic sensors in a mouse to vary the operation of the mouse. Some embodiments may include a method of modifying the programming of a mouse that includes sampling, with the chromatic sensor, an optical property of a surface upon with the mouse is operating (such as color of the surface), and then dynamically modifying the programming of the mouse based upon the sampled optical property. In this manner, the operation of the mouse, such as tracking resolution, may be customized based upon the properties of the surface upon which the mouse is operating. Other embodiments may include utilizing the mouse with the chromatic sensor as a scanner to display images on a housing of the mouse.
US08890813B2 Cross-user hand tracking and shape recognition user interface
Embodiments include vision-based interfaces performing hand or object tracking and shape recognition. The vision-based interface receives data from a sensor, and the data corresponds to an object detected by the sensor. The interface generates images from each frame of the data, and the images represent numerous resolutions. The interface detects blobs in the images and tracks the object by associating the blobs with tracks of the object. The interface detects a pose of the object by classifying each blob as corresponding to one of a number of object shapes. The interface controls a gestural interface in response to the pose and the tracks.
US08890811B2 Projection controlling apparatus and projection controlling method
According to an aspect, a projection controlling apparatus for causing a projector to project an image includes a detector, an extractor, and a projection unit. The detector detects a point directed to a first image projected by the projector. The extractor extracts a first object contained in the first image based on the point. The projection unit causes the projector to project a second image that is an image with a pointing index added to the first object in the first image.
US08890809B2 Image recognition apparatus, operation determining method and computer-readable medium
An accurate determination of an operation is possible. Data photographed by a video camera is read by an image reading unit, and an image of an operator is extracted from the data by an image extracting unit. As a result of such preparation, a virtual operation screen and an operation region are created based upon the extracted image of the operator. In a case of an adult operator, an operation region can be created in consideration with a length (position of sight line) or a length of an arm, and in a case of a child, since a length is lower and a length of an arm is shorter, an operation region can be set to match it.
US08890808B2 Repositioning gestures for chromeless regions
In graphical computing environments, applications are often presented as windows and other regions with visual controls that enable standardized region management functions, including repositioning the regions. However, in some scenarios (particularly devices with small displays), such user interface “chrome” may undesirable diminish the size of the region devoted to the output of the application, and removing such visual controls without eliminating repositioning functionality may be advantageous. Presented herein are repositioning gestures that may be invoked to request repositioning of a selected region by “hovering” a pointer near an edge of the display that is near the selected region; optionally by activating the pointer; and by moving the pointer away from the edge of the display (e.g., “dragging” the pointer while depressing a mouse button). This gesture may easily and unambiguously invoke a region repositioning mode for the selected region, despite the absence of visual repositioning controls confluent with the region.
US08890803B2 Gesture control system
A method for controlling a device comprises: a) providing a mobile device comprising a camera; b) positioning said mobile device such that said camera acquires the image of an operator's hands; c) analyzing the movements of said operator's hands to derive a control command therefrom; and d) transmitting said control command to a controlled device.
US08890799B2 Display with red, green, and blue light sources
A display has a screen which incorporates a light modulator. The screen may be a front projection screen or a rear-projection screen. The screen is illuminated with light from a light source comprising an array of controllable light-emitters. The controllable-emitters and elements of the light modulator may be controlled to adjust the intensity of light emanating from corresponding areas on the screen. The display may provide a high dynamic range.
US08890796B2 Method and circuit for synchronizing input and output synchronizing signals, backlight driver in liquid crystal display device using the same, and method for driving the backlight driver
A method and a circuit for synchronizing input and output synchronizing signals are disclosed. The method for synchronizing input and output synchronizing signals includes detecting an Nth (N is a positive integer) input period of the input synchronizing signal, determining whether the detected Nth input period is the same with a prior (N−1) the output period of the output synchronizing signal, detecting a difference between an end time of the (N−1)the output period and an end time of the Nth input period, if the detected Nth input period is not the same with the (N−1)the output period, operating the detected difference with the Nth input period, and setting the operated value as an Nth output period, and generating and outputting the output synchronizing signal having the set Nth output period.
US08890785B2 Display panel and gate driving circuit thereof
A display panel and its gate driving circuit are provided. The gate driving circuit includes a plurality of shift registers. Each of the shift registers includes a first scan signal generator for generating a first scan signal, a second scan signal generator for generating a second scan signal, a first control unit for generating a first control signal, and a second control unit for generating a second control signal. Here, the first control signal and the second control signal are shared by the first scan signal generator and the second scan signal generator. Based on the above, the abatement of signal intensity of the first scan signal and the second scan signal caused by circuit sharing can be precluded, and a chip area occupied by each of the shift registers can be reduced.
US08890781B2 Display device and electronic device including display device
Objects are to provide a display device the power consumption of which is reduced, to provide a self-luminous display device the power consumption of which is reduced and which is capable of long-term use in a dark place. A circuit is formed using a thin film transistor in which a highly-purified oxide semiconductor is used and a pixel can keep a certain state (a state in which a video signal has been written). As a result, even in the case of displaying a still image, stable operation is easily performed. In addition, an operation interval of a driver circuit can be extended, which results in a reduction in power consumption of a display device. Moreover, a light-storing material is used in a pixel portion of a self-luminous display device to store light, whereby the display device can be used in a dark place for a long time.
US08890780B2 Semiconductor device, display panel and electronic apparatus
A semiconductor device includes a plurality of thin film transistors of a single channel formed on an insulating substrate, and a buffer circuit including an outputting stage; a first inputting stage; a second inputting stage; a seventh thin film transistor; and an eighth thin film transistor.
US08890777B2 Organic light emitting display and method of driving the same
An organic light emitting display capable of compensating for threshold voltage variations of a driving transistor may include scan and data drivers, pixels, an initial power source unit, a switching unit, a compensating unit, and a timing controller. The scan and data drivers may control current that flows from a first to a second power source via an OLED. The switching unit may selectively couple the initial power source unit to the data driver. The compensating unit may store second data corresponding to a threshold voltage of a driving transistor and may transmit the stored second data to the data driver. The timing controller may transmit the externally supplied first data input to the data driver and may control the scan driver, the data driver, and the compensating unit. The data driver may generate and supply third data signals to the pixels using the first and the second data.
US08890775B2 Information display apparatus
An information display apparatus includes a fan face that is openly/closably bent like bellows, the fan face comprising a thin film flat display formed on a flexible and bendy thin film, the thin film flat display comprising a full color organic EL display capable of displaying a full color television image, a pair of main ribs joined to respective ends of the fan face, the fan face being disposed between the main ribs, a plurality of intermediate ribs interposed between the main ribs, the fan face being joined to the intermediate ribs, and a pivot for turnably fixing the main ribs and the intermediate ribs in a root portion. A television receiver circuit is disposed in one of the main ribs.
US08890773B1 Visible light transceiver glasses
An LED light and communication system includes Visible Light Communication Transceiver Glasses having at least one projector, lense(s), and optical transceiver, the optical transceiver including a light support and a processor. The light support has at least one light emitting diode and at least one photodetector attached. The processor is in communication with the at least one light emitting diode and the at least one photodetector. The processor is capable of illuminating the at least one light emitting diode to create at least one light signal which is not observable to the unaided eyes of an individual. The second light signal includes at least one data packet. The processor may generate a signal for the projector to display information on the lense(s).
US08890771B2 Transparent electronic device
A method and system for displaying images on a transparent display of an electronic device. The display may include one or more display screens as well as a flexible circuit for connecting the display screens with internal circuitry of the electronic device. Furthermore, the display screens may allow for overlaying of images over real world viewable objects, as well as a visible window to be present on an otherwise opaque display screen. Additionally, the display may include active and passive display screens that may be utilized based on images to be displayed.
US08890769B2 Display system and control method
According to an aspect, a display system includes a first display unit, a second display unit, an operating unit, and a control unit. The second display unit is provided with a first icon arranged thereon. The operating unit detects an operation. When an operation of moving the first icon to a first area on the second display unit is detected by the operating unit, the control unit displays a first image associated with the first icon on the first display unit and in a second area on the second display unit.
US08890768B2 Smartpad screen modes
A multi-display device is adapted to be dockable or otherwise associatable with an additional device. In accordance with one exemplary embodiment, the multi-display device is dockable with a smartpad. The exemplary smartpad can include a screen, a touch sensitive display, a configurable area, a gesture capture region(s) and a camera. The smartpad can also include a port adapted to receive the device. The exemplary smartpad is able to cooperate with the device such that information displayable on the device is also displayable on the smartpad. Furthermore, any one or more of the functions on the device are extendable to the smartpad, with the smartpad capable of acting as an input/output interface or extension of the device. Therefore, for example, information from one or more of the displays on the multi-screen device is displayable on the smartpad.
US08890767B2 Active metamaterial device and manufacturing method of the same
Provided are an active metamaterial device operating at a high speed and a manufacturing method thereof. The active metamaterial device includes a first dielectric layer, a lower electrode disposed on the first dielectric layer, a second dielectric layer disposed on the lower electrode, metamaterial patterns disposed on the second dielectric layer, a couple layer disposed on the metamaterial patterns and the second dielectric layer, a third dielectric layer disposed on the couple layer, and an upper electrode disposed on the third dielectric layer.
US08890764B2 Array antenna apparatus having shortest wiring distance to antenna elements
An array antenna apparatus includes a radio circuit; an array antenna that includes a plurality of antenna elements; feeder lines that connect the radio circuit to the respective antenna elements; and a delay circuit provided at each of one or more of the feeder lines. An amount of delay of the delay circuit is set so that the sum of a phase delay by the delay circuit and a phase delay due to a difference between a length of the corresponding feeder line and a predetermined reference length is an integer multiple of 360 degrees.
US08890763B2 Multiantenna unit and communication apparatus
This multiantenna unit includes a first antenna element, a second antenna element and a non-grounded passive element arranged between the first and second antenna elements. The passive element includes a first portion arranged on a front surface of a substrate and an extensional portion, connected to the first portion, extending perpendicularly to the front surface of the substrate.
US08890761B2 Structure, printed circuit board, antenna, transmission line to waveguide converter, array antenna, and electronic device
A structure includes a first conductor plane; a plurality of second conductor planes, at least a portion thereof being provided facing the first conductor plane; a transmission line that is provided with at least a portion thereof facing one conductor plane of the first conductor plane and the second conductor plane, and that is disposed on an opposite side of the other conductor plane with respect to the one conductor plane; and a first conductor connecting portion that electrically connects the transmission line with the other conductor plane, and a unit structure that includes at least the second conductor plane, the transmission line, and the first conductor connecting portion is repeatedly disposed.
US08890758B2 Antenna arrangement
An antenna (100,200,300, 400, 500) comprising first (110, 210, 310, 410, 430) and second (120, 220, 320, 420, 440) structures for guiding electromagnetic waves, each comprising groups (111, 130, 150, 230, 330; 140,160, 240, 340, 445, 470) of radiation elements. For adjacent sections in 5 the structures, at least one applies: ?Groups of radiation elements are distributed along the two structures such that a group (110, 130, 150) in the first structure overlaps a group (120, 140,160) in the second structure partially or not at all. ?Radiation elements within said groups (230; 240) exhibit a common 10 main direction of extension within the group, and differs between the first and the second groups by an angle of at least 10 degrees. ?The radiation elements of the groups (330, 340) are distributed along the structures (310, 320) on sides of the structures which face different directions.
US08890752B2 Reconfigurable antenna
A reconfigurable antenna comprises two or more mutually coupled radiating elements and two or more impedance-matching circuits configured for independent tuning of the frequency band of each radiating element. In addition, each radiating element is arranged for selective operation in each of the following states: a driven state, a floating state and a ground state.
US08890748B2 Method and device for discriminating among locations of a mobile terminal
A location-information discrimination method and device are provided that can accurately discriminate between locations of a mobile terminal in keeping with an actual environment. A discrimination value calculator calculates a discrimination value that is dependent on the amount of a change, from a predetermined value, in the received power of a radio signal received by a mobile terminal from a base station and on the duration of that change in the received power. The determination section compares the discrimination value with a predetermined value, thereby determining whether the mobile terminal is located indoors or outdoors.
US08890745B2 RF gun barrel detection system
A method of detecting an object includes receiving first reflected radio frequency (RF) signals from a region using an antenna and generating a first backscattering signature of the region from the first reflected RF signals. The method further includes receiving second reflected RF signals from the region subsequent to receiving the first reflected RF signals and generating at least one second backscattering signature of the region from the second reflected RF signals. The method further includes detecting a difference between the first backscattering signature and the second backscattering signature, and providing a warning indication in response to the difference between the first backscattering signature and the second backscattering signature.
US08890740B2 Comparator and correction method therefor
A comparator has a comparator circuit to output an output voltage based on a voltage difference between a first and second input voltage, a variable capacitor connected to an output terminal, an input voltage control circuit to generate a common voltage and add the common voltage to the first and the second input voltages, and a correction circuit to control the variable capacitor to control the common voltage. The correction circuit controls a first capacitance value of the variable capacitor so that the output voltage is reversed when the voltage difference equals a first voltage difference, and controls a second capacitance value of the variable capacitor so that the output voltage is reversed when the voltage difference equals a second voltage value, and controls the common voltage so that a difference between the first capacitance value and the second capacitance value becomes equal to a predetermined capacitance value.
US08890737B2 Current balancing, current sensor, and phase balancing apparatus and method for a voltage regulator
Described are apparatuses and methods of current balancing, current sensing and phase balancing, offset cancellation, digital to analog current converter with monotonic output using binary coded input (without binary to thermometer decoder), compensator for a voltage regulator (VR), etc. In one example, an apparatus comprises: a plurality of inductors coupled to a capacitor and a load; a plurality of bridges, each of which is coupled to a corresponding inductor from the plurality of inductors; and a plurality of current sensors, each of which is coupled to a bridge to sense current through a transistor of the bridge.
US08890736B2 Signal mixing circuit and associated converter
A signal mixing circuit which mixes input signal(s) and oscillation signal(s) by mixer block(s) to provide a mixed signal. Each mixer block includes a summing node and a circuit unit; the summing node is arranged to provide a sum signal by summing an input signal and an oscillation signal, and the circuit unit is arranged to alternate between a first state and a second state in response to alternating of the oscillation signal; wherein the circuit unit is arranged to provide driving contribution to the mixed signal in response to the sum signal during the first state, and to stop providing driving contribution during the second state. An associated converter, e.g., a digital-to-analog converter, is also disclosed.
US08890735B2 Multi-level sigma-delta ADC with reduced quantization levels
A multi-level sigma-delta Analog to Digital converter provides multi-level outputs using a quantizer with reduced quantization levels. The converter comprises a direct path comprising a computation block, an analog integrator and the quantizer with reduced quantization levels. Further, the converter comprises a feedback path arranged to provide to the computation block a feedback analog signal. The direct path comprises a first amplification block having a gain factor which is the inverse of the gain factor of a second amplification block of the feedback path. The converter allows reduction of the complexity of the quantizer.
US08890733B2 Device, system and method for analogue-to-digital conversion using a current integrating circuit
A device including a sample and hold circuit for providing a signal related to an input analogue current signal, by sampling the input analogue current signal and integrating it on capacitive means, thereby charging the capacitive means to a charge value. The capacitive means being configurable to dynamically change its effective capacitance value in order to shape a voltage signal present on the capacitive means such that the charge value remains unchanged. The device also including an analogue-to digital conversion (ADC) and control circuit arranged for performing an ADC of the at least one related signal at the output of the sample and hold circuit into an output digital signal, the ADC and control circuit including successive approximation ADC means for considering the value of the voltage signal on the capacitive means and converting the charge value present in the capacitive means into the digital output signal.
US08890732B2 Sampling circuit for ADC
A sampling circuit for ADC includes an external input terminal, a sampling circuit and an auxiliary circuit which are connected with the external input terminal, a clock circuit and an external output terminal which are connected with the sampling circuit, and a clock feedthrough circuit connected with the auxiliary circuit, wherein the clock feedthrough circuit is respectively connected with the clock circuit and the external output terminal. The sampling circuit for ADC of the present invention decreases the impact of clock feedthrough on signal sampling, improves linearity of sampling FET, reduces harmonic distortion of the sampling circuit and improves sampling speed thereof, and improves sampling accuracy of the sampling circuit for ADC.
US08890729B2 Randomized time-interleaved sample-and-hold system
A time interleaving Analog-to-Digital Converter (ADC) comprises a plurality of ADCs; a timing generator that generates a dock signal for each of the plurality of ADCs such that edges of said clock signals trigger sampling of an input signal by the plurality of ADCs; and a timing adjustment circuit to receive and adjust the dock signals before the dock signals are received by the ADCs such that samplings of said input signal are spaced in time and occur at a rate of 1/N times a desired sampling rate; and a random number generator to pseudo randomly select which ADC samples the input signal; and a circuit for adjusting the bandwidth of the plurality of ADCs.
US08890723B2 Encoder that optimizes bit allocation for information sub-parts
A digital information encoder including a divider configured to divide a block of information into a plurality of sub-parts, an initial bit allocator configured to perform an initial allocation of bits to a KTH sub-part of said plurality of sub-parts, a processor configured to compute an estimated number of bits for encoding said KTH sub-part, and a bit allocation adjuster configured to obtain an adjusted bit allocation for said KTH sub-part by adjusting said initial allocation of bits to said KTH sub-part based, at least in part, on said estimated number of bits, wherein the encoder encodes said KTH sub-part using said adjusted bit allocation for said KTH sub-part.
US08890720B2 Illuminated keyboard
A light guide is provided for illuminating innumerable constructions, but which is ideally suited for illuminating the keys of a keyboard. The light guide includes a translucent planar plate having a top, a bottom and sides. Further, the light guide includes one or more cavities which project upwardly into the translucent plate from its bottom surface. The cavities are hollow or filled with a translucent material so that the translucent plate and the one or more cavities form translucent interfaces where the cavities interface with the plate. The light guide also includes a reflector which covers the plate bottom and cavity openings.
US08890717B2 System and method for monitoring and updating speed-by-street data
System and method for identifying speeding violations, comprising determining a current speed and a current location of a vehicle, determining a posted speed limit for the current location from a speed-by-street database, comparing the current speed of the vehicle to the posted speed limit, and evaluating whether the current speed exceeds the posted speed limit. Errors are identified in the speed-by-street database by storing a plurality of speeding violation records, wherein the speeding violation records each include a speeding event location; analyzing the speeding violation records to identify one or more speeding event locations having multiple speeding violations; comparing a posted speed limit at the one or more speeding event locations having multiple speeding violations to corresponding speed limit data in the speed-by-street database; and identifying one or more speed limit entries in the speed-by-street database that do not match the posted speed limit.
US08890715B2 Navigation apparatus, server apparatus and method of collecting parking location information
A navigation apparatus (200) comprises a processing resource (202) operably coupled to a receiver (224) for location-related data and arranged to perform, when in use, location determination. The processing resource (202) supports a parking location determination module (266). The parking location determination module (266) is arranged to determine when the location determined is substantially unchanged and to determine that the location determined constitutes a candidate parking location in response to the location determined remaining substantially unchanged relative to a predetermined period of time.
US08890713B2 Device and method for outputting a signal when there is a hazardous underlying surface under a vehicle
A method and a device for outputting a signal when there is a hazardous surface under a vehicle includes providing an optical surface sensor for determining one or more parameters of the underlying surface, a stationary-state-determining device for determining whether the vehicle is stationary or is to be brought to a standstill, and an output device that outputs a signal if the underlying surface has been determined to be hazardous on the basis of the parameter(s), and the vehicle is stationary or is to be brought to a standstill.
US08890710B2 Method and system of an electromagnetic telemetry
An electromagnetic telemetry repeater. At least some of the illustrative embodiments are methods comprising inducing an electrical signal along a metallic tubular (the electrical signal carrying the information and the inducing within a borehole beneath the ocean floor), sensing an electric field proximate to the ocean floor, sensing a magnetic field proximate to the ocean floor, recreating the information using one sensed field as indicative of the information and the other sensed field as indicative of the noise, and sending the information toward the ocean surface.
US08890708B2 Mixed element strobe
A strobe device that includes multiple strobe elements is disclosed. The strobe device may include a first strobe element and a second strobe element, where at least one aspect of the first strobe element differs from the second strobe element. For example, the first strobe element may be a Xenon flash tube strobe element and the second strobe element may be an LED-based strobe element. In response to receiving a command to generate an output, the controller determines which of the first strobe element and/or the second strobe element to activate, and sends one or more signals to the first strobe element and/or the second strobe element based on the determination. The controller may activate both of the first strobe element and the second strobe element (such as alternating activation of the first strobe element and the second strobe element). Or, the controller may select one of the first strobe element and the second strobe element. For example, depending on the ambient light at or near the strobe device, the controller may activate either the first strobe element or the second strobe element.
US08890707B2 Mixed element strobe
A strobe device that includes multiple strobe elements is disclosed. The strobe device may include a first strobe element and a second strobe element, where at least one aspect of the first strobe element differs from the second strobe element. For example, the first strobe element may be a Xenon flash tube strobe element and the second strobe element may be an LED-based strobe element. In response to receiving a command to generate an output, the controller determines which of the first strobe element and/or the second strobe element to activate, and sends one or more signals to the first strobe element and/or the second strobe element based on the determination. The controller may activate both of the first strobe element and the second strobe element (such as alternating activation of the first strobe element and the second strobe element). Or, the controller may select one of the first strobe element and the second strobe element. For example, depending on the ambient light at or near the strobe device, the controller may activate either the first strobe element or the second strobe element.
US08890703B2 Passive water heater anode rod depletion sensor algorithm
The present subject matter relates to methodologies and algorithms for providing anode rod depletion detection and warnings thereof to consumers. Consumers general are not concerned with monitoring consumption of protective anode rods incorporated within water heaters, The present subject matter provides automatic monitoring of anode rod depletion and provides the consumer with notification of rod depletion beyond a predetermined amount by one or more of optical, audible, or electronic devices. Aspects of the algorithm include handling of start-up conditions, service board replacement conditions, and properly defining the anode rod depletion threshold. Additional algorithm aspects include considerations for taking into consideration power outage conditions and accurately estimating galvanic current.
US08890702B2 Defibrillator delivering audible prompts to earpiece
Defibrillators, software and methods are provided, for transmitting inaudible audio information to one or more external personal sound devices. The audio information may encode an audible indication, which can thus be played by an external personal sound device to a user such as a rescuer.
US08890695B2 Method and system for locating and communicating with a user of a wireless communication device
A system and method provides a notification to a user via a wireless communication device when the wireless communication device leaves a predetermined area. Components within the wireless communication device are utilized to determine the location of the wireless communication device. When the wireless communication device is no longer within the predetermined area, a notification is provided to the user.
US08890691B2 Programmable security system and method for protecting merchandise
A programmable security system and method for protecting an item of merchandise includes a programming station, a programmable key and a security system. The programming station generates a security code and communicates the security code to a memory of the programmable key. The programmable key initially communicates the security code to a memory of the security device and subsequently operates the security device upon a matching of the security code in the memory of the security device with the security code in the memory of the programmable key. The programmable key may also transfer power via electrical contacts or inductive transfer from an internal battery to the security device to operate a lock mechanism. The security code may be communicated by wireless infrared (IR) systems, electrical contacts or inductive transfer. A timer inactivates the programmable key and/or the security device after a predetermine period of time. A counter inactivates the programmable key after a predetermined maximum number of activations.
US08890689B2 Adjustable dual loop cable security device
Various embodiments of the invention may be directed to a security device comprising a housing, a rotatable assembly, a locking assembly, and a cable. The rotatable assembly may include a plurality of locking teeth, a spool, and an engagement portion configured to facilitate rotation the rotatable assembly. The locking assembly may include biasing elements configured to apply a biasing force so that the locking assembly and the rotatable assembly may be configured in a locked position. Further, the locking assembly may include magnetically attractive elements configured to counteract the biasing force when a specifically configured key is applied to the housing of the security device. The security device may further include a security element, an alarm, and other components.
US08890688B2 Communicating radio frequency modem for intrusion detection and tracking
A cellular modem may give notice of changes in modes. The modem will change modes as a result of the breaking of a trip wire or the closing of contacts that are normally open or the opening of contacts that are normally closed or sensing motion or light, or sensing variations in resistance. One contact is provided to wake the unit from “sleep” and the other is provided to detect intrusion, motion, etc. Light detectors can detect light, such as when a closed container is opened. Closed contacts can be used in parallel to change any mode or open/closed contacts in parallel/series. The modem can be used to apprehend people breaking into or stealing luggage, equipment, boxes, etc. The present invention informs the user when the object being monitored is being moved or opened and can track the object's location.
US08890683B2 Device, system and method for tracking mobile assets
A device attached to an outside surface of a shipping container for tracking the shipping container includes a solar panel, a battery, a GPS receiver module, a cellular data transceiver module, and a microcontroller for controlling the GPS receiver module and the cellular data transceiver module to periodically obtain the location of the shipping container and transmit the location to a tracking database of a central tracking computer. The solar panel, battery, GPS receiver module, cellular data transceiver module and microcontroller are integrated into a one-piece, watertight master control unit. The master control unit may further include a local wireless network master transceiver module. The local wireless network master transceiver module is for communicating with a wireless sensor located within the shipping container through the walls of the shipping container.
US08890682B2 Blood glucose measuring device
A blood glucose measuring instrument is configured to output guidance allowing a subject to take appropriate countermeasure. The blood glucose measuring instrument includes a first setting device for receiving a static limit value wirelessly transmitted from an authenticated external apparatus and setting the static limit value, storage for classifying and storing blood glucose level data acquired by a blood glucose measurement based on classification according to the measurement timing, a second setting device for calculating, using past blood glucose level data stored in classified groups in the storage, a distribution for each classified group and setting a dynamic limit value based on the calculated distribution, and a notifying device which compares blood glucose level data with the static limit value and the dynamic limit value for the classified group to which the blood glucose level data belongs to provide notification about a result of the comparison.
US08890679B2 Smart power device
A power device may include channels coupled to conductors in lines, where each one of the channels is coupled to a different one of the lines than the other channels and where the channels deliver direct current power signals over the conductors to the load devices. Each one of the load devices may be powered by a different one of the direct current power signals. The power device may include a power communicator that communicates with the load devices over the conductors that propagate the direct current power signals. The power communicator may determine a target power level for the load devices based on the communication over the conductors. The load device may adjust an amount of power in the direct current power signals in order to match the target power level.
US08890678B2 Plug-and-play sensor peripheral component for process instrumentation
A plug-and-play sensor peripheral component includes an electrically conductive physical connector; an electrical connector; a transformer; and an RF communication and data storage circuit. The electrical connector is electrically connected to the physical connector by a first conductive path. The transformer is electrically connected to the RF communication and data storage circuit. The transformer and the RF communication and data storage circuit are electrically isolated from the physical connector and the electrical connector. Electrically connecting the physical connector to the electrical connector by other than the first conductive path inductively couples the RF communication and data storage circuit to the first conductive path.
US08890674B2 Driver assistance detection system
A driver assistance detection system and method for determining levels of functionality of an interactive device in a vehicle are provided. The driver assistance detection system comprises a vision-based detection device, a processing device, and an interactive device. The vision-based detection device is configured to visually detect objects, recognize whether the object is an object of interest, and then obtain data regarding a status of the object. The processing device is configured to receive data from the vision-based detection device, run a set of instructions and switch the interactive device between a first mode and a second mode. The interactive device is configured to have at least two modes, wherein the second mode has reduced functionality relative to the first mode.
US08890673B2 System and method for detecting use of a wireless device in a moving vehicle
A system and method for detecting use of a wireless device is disclosed. In one embodiment, wireless device activity data is received from a wireless network. User account data is searched using selected parameters from the wireless device activity data to identify one or more subscribers that are or were using a wireless device. One or more subscriber vehicles or vehicle monitoring systems associated with each of the one or more subscribers are identified. Vehicle operation data from one or more vehicle monitoring systems is received. The vehicle operation data is used to determine whether any of the one or more subscriber vehicles were moving during use of an associated wireless device.
US08890672B2 Metal tooth detection and locating
A machine tooth for heavy equipment can be monitored by coupling an RFID tag to the heavy machine tooth and positioning an RFID reader to read the RFID tag. The RFID reader provides an indication that the heavy machine tooth is separated from the heavy machine. The heavy machine tooth is configured, for example, to be mounted on a bucket of a heavy machine.
US08890664B2 Serial programming of a universal remote control
A method and system for programming a universal remote control (URC) to operate with a remote-controlled device is disclosed. After initiating a serial programming mode on the URC, a user may be instructed to operate a plurality of control elements of an original remote control (ORC) of the remote-controlled device in a predetermined sequence. As a result of operating the ORC control elements, a plurality of programming codes for the remote-controlled device may be received by the URC. Alternatively, the ORC may be requested to transmit a plurality of programming codes for the remote-controlled device. The URC may be configured to use at least one of the programming codes to remotely control the remote-controlled device.
US08890663B2 Transmission of power and data at multiple power levels
In one embodiment, an apparatus includes a circuit coupled to a line, where the circuit may power a device, and where the power is transmitted to the device over the line as a pulse-width modulated signal. The circuit may set a duty cycle of the pulse-width modulated signal in order to transmit a determined power level to the device. The apparatus may vary a frequency of the pulse-width modulated signal to transmit data to the device while the duty cycle of the pulse-width modulated signal is fixed in order to continue to transmit the determined power level to the device. A variation in the frequency of the pulse-width modulated signal may be detectable by the device and represents at least a portion of the data.
US08890661B2 Method, apparatus and computer program product for invoking local communication application services
It is presented a method for invoking an application service in response to a tag reading by a mobile terminal. The method comprises the steps of: receiving an input message, the input message comprising data being associated with a tag read by the mobile terminal using local communication, the input message further comprising a recipient identifier linked to the mobile terminal; determining, using a plurality of parameters associated with the tag reading, a plurality of matching application servers, wherein conditions of a tag reading subscription for each of the matching application servers matches the plurality of parameters; and sending an invocation message to each of the matching application servers to invoke a respective application service of each of the matching application servers, the invocation message comprising the recipient identifier enabling each of the application services to send content to the user equipment and the tag data.
US08890658B2 RFID system and communication method thereof
An RFID system using an M pulse amplitude modulation (M-PAM) or M quadrature amplitude modulation (M-QAM) scheme using a plurality of load-modulators, a plurality of antennas, and a communication method thereof are provided. The RFID system includes: an RFID tag; and a reader device communicating with the RFID device, wherein the RFID tag includes: N load-modulators an N antennas communicating with the reader device in any one scheme of M-pulse amplitude modulation (M-PAM) and M-quadrature amplitude modulation (M-QAM) in which modulation of an M level is performed and operated corresponding to the M level.
US08890656B2 Mobile panic button for health monitoring system
In one example, a mobile device with a panic button includes a surface structured to removably engage a surface of a docking station. The mobile device includes a first interface to communicatively couple the mobile device to the docking station at least when the surfaces are engaged, the first interface comprising a short range wireless transceiver or an electrical connector to make contact an electrical connector of the docking station. The mobile device includes a second interface comprising a long range wireless radio. A processing device of the mobile device is configured to relay messages between the docking station and a remote caregiver computing device using the first and second interfaces to enable synchronization between the mobile device and the docking station.
US08890655B2 Intelligent observation and identification database system
An intelligent video/audio observation and identification database system may define a security zone or group of zones. The system may identify vehicles and individuals entering or exiting the zone through image recognition of the vehicle or individual as compared to prerecorded information stored in a database. The system may alert security personnel as to warrants or other information discovered pertaining to the recognized vehicle or individual resulting from a database search. The system may compare images of a suspect vehicle, such as an undercarriage image, to standard vehicle images stored in the database and alert security personnel as to potential vehicle overloading or foreign objects detected, such as potential bombs. The system may track individuals or vehicles within a zone or between zones. The system may further learn the standard times and locations of vehicles or individuals tracked by the system and alert security personnel upon deviation from standard activity.
US08890654B2 Methodology for emergency transfer of keys for vehicle equipped with biometric access and start
A system may include a system controller in communication with a function controller and configured to receive an authentication request. The authentication request may include a user input and the user input may be authenticated by matching the user input with at least one stored input. The controller may determine a vehicle mode and update, via the function controller, a status associated with a key fob in response to the vehicle mode being in an authenticated mode.
US08890645B2 Composite isolating transformer
A composite isolating transformer includes a main winding rack and a support rack. The main winding rack includes two winding portions coaxially formed to hold respectively a primary coil and a secondary coil, and a separating portion between the two winding portions. The support rack includes a first support half member and a second support half member coupling together to encase at least one winding portion. The first and second support half members have respectively a first cover and a second cover to cover two lateral sides of the winding portion, respectively a first insulating portion and a second insulating portion corresponding to the separating portion and extending towards the separating section to couple together, and respectively a first isolating portion and a second isolating portion extended from the first and second insulating portions towards the winding portion to cover another two lateral sides of the winding portion.
US08890641B2 Method for controlling the magnetic clamping of a part and magnetic clamping device using such a method
In this method, magnetic studs housed in a plate are connected to magnetic flux measuring circuits, which define measuring zones, and to power circuits that make it possible to magnetize or demagnetize the studs. The method comprises prior steps that consist in determining (100) at least two treatment zones each defined by at least one measuring zone and defining (102) a surface of the clamping plate in contact with the part to be clamped, as well as following steps consisting, for each treatment zone, in identifying (103) one or more magnetic studs included in a surface of the clamping plate in contact with the part to be clamped, measuring (105) the magnetic flux produced by the stud or studs identified previously, calculating (106) an actual magnetic clamping force based on the measurement of the preceding step and on the identification made previously, calculating (108) a theoretical magnetic force thanks to this identification.The magnetic clamping device, comprises means intended to implement a method such as described hereinabove and a clamping plate that comprises at least two measuring circuits arranged one on top of the other, in relation to a plan perpendicular to the weight of the part to be clamped.
US08890636B2 Device comprising a controlled matching stage
A device includes a matching stage coupled between a first signal terminal and a second signal terminal. A signal path extends between the first signal terminal and the second terminal. An adjustable impedance element is connected to the signal path. A detection circuit is coupled to the signal path and configured to derive matching information. A control circuit is coupled between the detection circuit and the adjustable impedance element. The control circuit is configured to control the adjustable impedance element.
US08890633B2 Resonant circuit with automated trimming capabilities
According to an example embodiment, a device includes a resonant circuit configured and arranged to provide a peak current flow at a resonance frequency. A trimming circuit provides variable impedances to the resonant circuit and thereby changes the resonance frequency for the resonant circuit. A driver circuit is configured to generate a trimming signal that oscillates at a desired frequency. A switch circuit couples and decouples the driver circuit to the resonant circuit for driving the resonant circuit with the trimming signal. An amplitude detection circuit detects amplitudes for signals generated in response to the trimming signal being connected to the resonant circuit. A processing circuit correlates detected amplitudes from the amplitude detection circuit with different impedance values of the variable trimming circuit.
US08890630B2 Oscillator apparatus and method with wide adjustable frequency range
An oscillator formed from low cost discrete semiconductors and passive devices creates a linear periodic ramp of constant frequency with ramp slope based on an external voltage signal. Parameters are stable over a wide range of temperatures and variations of transistor parameters that normally degrade in extreme environments. The oscillator period can be phase and frequency synchronized to an external clock source over a wide range of frequencies. The oscillator ramp generator phase can be synchronized on a cycle by cycle basis for incorporation in power converters employing spread spectral EMI reduction techniques, multi-converter systems employing clock interleaving for distribution bus filter optimization, and resonant mode converters employing zero voltage switching techniques. Oscillator ramp rate is independent of frequency and can be synchronized to DC (inhibit) for use in ultra low power burst mode power conversion.
US08890626B2 Divider-less phase locked loop (PLL)
One or more techniques and systems for a divider-less phase locked loop (PLL) and associated phase detector (PD) are provided herein. In some embodiments, a pulse phase detector (pulsePD) signal, a voltage controlled oscillator positive differential (VCOP) signal, and a voltage controlled oscillator negative differential (VCON) signal are received. An up signal and a down signal for a first charge pump (CP) and an up signal and a down signal for a second CP are generated based on the pulsePD signal, the VCOP signal, and the VCON signal. For example, CP signals are generated to control the first CP and the second CP, respectively. In some embodiments, CP signals are generated such that the CPs facilitate adjustment of a zero crossing phase of the VCON and VCOP signals with respect to the pulsePD signal. In this manner, a divider-less PLL is provided, thus mitigating PLL power consumption.
US08890622B2 Cascode amplifier
A cascode amplifier includes: first transistors; second transistors cascode-connected with respective first transistors; a first line connected at spaced points to control terminals of the first transistors; a second line connected at spaced points to control terminals of the second transistors; and a capacitance connected between one end of the second line and ground. The second line includes at least two lines connected in parallel with each other.
US08890618B2 Zero-voltage-switching contour based outphasing power amplifier
A zero-voltage-switching contour based outphasing power amplifier having two class-E power amplifiers connected in an out-phasing architecture coupled on opposite sides of a load being driven. The pair of class-E power amplifiers receive separate digital drive signals with an amount of phase difference that is adjusted based on the load. Variable capacitor arrays are coupled in parallel on the class-E power amplifiers and controlled in response to system parameters including duty cycle of the input signal. Efficiency of the power amplifier is maintained despite variation in output loading.
US08890609B2 Systems and methods for band-limited adaptation for PA linearization
Systems and methods are disclosed for providing band-limited power amplifier linearization. In one embodiment, a system includes a power amplifier configured to amplify a power amplifier input signal to provide a power amplifier output signal and a digital predistortion system configured to compensate for up to a predefined maximum order of non-linearity of the power amplifier. The digital predistortion system includes a band-limited adaptation subsystem. As compared to conventional adaptation subsystems, the band-limited adaptation subsystem is significantly less complex and consumes less power.
US08890607B2 Stacked chip system
A stacked chip system is provided to comprise a first chip, a second chip, a first group of through silicon vias (TSVs) connecting the first chip and second chip and comprising at least one first VSS TSV, at least one first VDD TSV, a plurality of first signal TSVs and at least one first redundant TSV and a second group of through silicon vias (TSVs) connecting the first chip and second chip and comprising at least one second VSS TSV, at least one second VDD TSV, a plurality of second signal TSVs and at least one second redundant TSV, wherein all the first group of TSVs are coupled by a first selection circuitry configured to select the at least one first redundant TSV and bypass at least one of the rest of the first group of TSVs, and wherein the at least one first redundant TSV and the at least second redundant TSV are coupled by a second selection circuitry configured to allow one of them to replace the other.
US08890603B2 Output circuit
An output circuit includes a current source and a first MOS transistor coupled in series between a power supply terminal and an output terminal. The first MOS transistor includes a backgate coupled to a drain of the second MOS transistor. The second MOS transistor includes a source coupled to a source of a third MOS transistor. The second MOS transistor includes a source coupled to backgates of the second and third MOS transistors. The backgates of the second and third MOS transistors are in a floating condition.
US08890601B2 Method, system, and circuit with a driver output interface having a common mode connection coupled to a transistor bulk connection
A multi-terminal output with a common mode connection includes an output having a first terminal and a second terminal and having a common mode connection between the first terminal and the second terminal. A bulk connection of a transistor is coupled to the common mode connection. A first set of control signals and a second set of control signals are generated. Each of the first set of control signals has a first rail voltage level associated with a first power domain. The second set of control signals is generated from the first set of control signals. Each of the second set of control signals has a second rail voltage level that is associated with a second power domain. The second power domain is associated with a common mode voltage of outputs of an output driver.
US08890596B2 Clock signal generating apparatus capable of reducing or avoiding crosstalk and glitch signals, and method used in clock signal generating apparatus
A clock signal generating apparatus includes a first frequency generating circuit, a second frequency generating circuit, and an output circuit. The first frequency generating circuit is arranged to generate a first clock signal having a first oscillation frequency. The second frequency generating circuit is arranged to generate a second clock signal having a second oscillation frequency. The output circuit is arranged to receive the first and second clock signals. The output circuit is able to output one of the first and second clock signals as an output clock signal according to an oscillation frequency control setting provided by an external bounding pad included within the clock signal generating apparatus.
US08890595B2 Dynamic clock phase control architecture for frequency synthesis
Embodiments of a device and circuit implementing a digitally controlled oscillator with reduced analog components. In an example, the digitally controlled oscillator can include a phase accumulator controlled by a stall circuit to selective stall the phase accumulator. In some examples, the digitally controlled oscillator can include a phase select circuit to select multiple phases of a phase select circuit based on the output of the phase accumulator. In some examples, these selected phases can then be used by a phase interpolator to generate a synthetic clock signal.
US08890594B1 System for functional reset across multiple clock domains
A system for synchronizing a functional reset between first and second clock domains that operate on first and second clock signals, respectively. The system includes first, second and third synchronizer flip-flops that operate on the second clock signal. The first synchronizer flip-flop receives a functional reset signal generated by the first clock domain at its reset terminal and generates a low output signal. The low output signal causes the second synchronizer flip-flop and subsequently the third synchronizer flip-flop to generate low output signals at positive edges of the second clock signal. The low output signal generated by the third synchronizer flip-flop is used to reset the second clock domain.
US08890593B1 Delay-locked loop (DLL) operation mode controller circuit and method for controlling thereof
A delay-locked loop (DLL) operation mode control circuit and corresponding method are provided in which one of the output values from a display driver IC (DDI) is detected to switch a DLL block to standby mode. In examples, a CLKP/N frequency and CLKP/N common terminal voltage status are used to switch mode. Accordingly, since inoperable frequency domains otherwise present in a normal mode interval of the DLL block is included into standby mode, more stable operation of the DLL circuit is provided.
US08890590B1 Wideband frequency synthesizer and frequency synthesizing method thereof
A wideband frequency synthesizer and a frequency synthesizing method thereof are provided. The wideband frequency synthesizer includes a phase-locked loop unit, a first voltage-controlled oscillating unit and a first frequency mixer unit. The phase-locked loop unit receives a reference signal and a feedback signal and generates a first oscillating signal according to the reference signal and the feedback signal. The first voltage-controlled oscillating unit generates a second oscillating signal. The first frequency mixer is coupled to the phase-locked loop unit and the first voltage-controlled oscillating unit, receives the first oscillating signal and the second oscillating signal for mixing frequencies of the first oscillating signal and the second oscillating signal to generate an output signal and taking the output signal as the feedback signal for outputting to the phase-locked loop unit.
US08890589B2 Apparatuses for measuring high speed signals and methods thereof
An apparatus for measuring a high speed signal may comprise a plurality of Analog-Digital converters (AD converter) that are arranged in parallel to each other to sample an input signal at different frequencies; a plurality of frequency synthesizers configured to provide each AD converter with a different sampling frequency; a signal processor configured to receive an output of the plurality of AD converters to reconstruct the input signal; and/or a controller configured to receive and process a trigger signal.
US08890587B2 Adaptive slope generator
An adaptive slope generator can include a current mirror configured to receive a multiplied current that varies as a function of an output voltage and a switching frequency of a switching current. The output voltage can characterize the switching current provided to a load coupled to an inductor. The current mirror can also be configured to receive an oscillation current. The oscillation current can have an amplitude that corresponds to the switching frequency of the switching current. The current mirror can be further configured to generate an output current substantially equivalent to the product of the oscillation current and the output voltage. The adaptive slope generator can also include a ramp generator configured to generate a compensation signal based on the output current. The compensation signal can have a sawtooth shape and a slope that varies as a function of the output voltage.
US08890584B2 Semiconductor device having gear down mode, method of controlling same, and information processing system
Disclosed herein is a device that includes: a frequency division circuit that divides a frequency of a first clock signal to generate a second clock signal; a first logic circuit that receives a first chip select signal and the second clock signal to generate a second chip select signal; and a command generation circuit that is activated based on the second chip select signal, and generates a second command signal based on a first command signal.
US08890583B2 Data transmission circuits and system having the same
Data transmission circuits are provided. The data transmission circuit includes a control signal generator and an output driver. The control signal generator generates a pull-up control signal and a pull-down control signal by using a count signal that changes in response to a clock signal during a drive control period. The output driver receives an internal data signal and drives a transmission data signal in response to the pull-up control signal and the pull-down control signal.
US08890581B2 Driving circuit of insulated gate device
A driving circuit for driving an insulated gate semiconductor device based on a voltage of an externally-inputted gate signal, where the insulated gate semiconductor device has a source, a drain and a gate, and a parasitic capacitor exists between the drain and the gate. The driving circuit includes a gate voltage controlling semiconductor device disposed between, and connecting, the gate and the source of the insulated gate semiconductor device. The gate voltage controlling semiconductor device has a source and a gate, and is driven by a current charging the parasitic capacitor. The driving circuit also includes a pull-up device disposed between, and connecting, the source and the drain of the gate voltage controlling semiconductor device.
US08890579B2 Circuit for current sensing in high-voltage transistor
An integrated circuit including a high-voltage n-channel MOS power transistor, a high-voltage n-channel MOS blocking transistor, a high-voltage n-channel MOS reference transistor, and a voltage comparator, configured to provide an overcurrent signal if drain current through the power transistor in the on state exceeds a predetermined value. The power transistor source node is grounded. The blocking transistor drain node is connected to the power transistor drain node. The blocking transistor source node is coupled to the comparator non-inverting input. The reference transistor drain node is fed by a current source and is connected to the comparator inverting input. The reference transistor gate node is coupled to a gate node of the power transistor. The comparator output provides the overcurrent signal. A process of operating the integrated circuit is disclosed.
US08890575B1 Glitch-free input transition detector
A circuit for detecting a signal transition on an input signal includes a mirror delay circuit and an input blocking circuit to prevent signal glitches or undesired signal pulses from being passed to the output signal node, thereby preventing signal distortions from being detected as a valid signal transition. The input transition detection circuit generates stable and correct transition detection pulses having a consistent pulse width.
US08890574B2 Circuit for preventing self-heating of metal-insulator-transition (MIT) device and method of fabricating integrated-device for the same circuit
Provided are a MIT device self-heating preventive-circuit that can solve a self-heating problem of a MIT device and a method of manufacturing a MIT device self-heating preventive-circuit integrated device. The MIT device self-heating preventive-circuit includes a MIT device that generates an abrupt MIT at a temperature equal to or greater than a critical temperature and is connected to a current driving device to control the flow of current in the current driving device, a transistor that is connected to the MIT device to control the self-heating of the MIT device after generating the MIT in the MIT device, and a resistor connected to the MIT device and the transistor.
US08890573B2 Clock gating latch, method of operation thereof and integrated circuit employing the same
A clock gating latch, a method of gating a clock signal and an integrating circuit incorporating the clock gating latch or the method. In one embodiment, the clock gating latch includes: (1) a propagation circuit having a single, first switch configured to be driven by an input clock signal, (2) a keeper circuit coupled to the propagation circuit and having a single, first switch configured to be driven by the input clock signal and (3) an AND gate coupled to the propagation circuit and the keeper circuit and having an internal node coupled to a second switch in the propagation circuit and a second switch in the keeper circuit.
US08890568B2 Semiconductor integrated circuit
A semiconductor integrated circuit including: a circuit block having an internal voltage line; an annular rail line forming a closed annular line around the circuit block and supplied with one of a power supply voltage and a reference voltage; and a plurality of switch blocks arranged around the circuit block along the annular rail line, the plurality of switch blocks each including a voltage line segment forming a part of the annular rail line and a switch for controlling connection and disconnection between the voltage line segment and the internal voltage line.
US08890567B1 High speed testing of integrated circuits including resistive elements
In one aspect, a method of testing an IC is provided. In one embodiment, the method includes: programming a resistive element in the IC at an intermediate ON state, where in addition to the intermediate ON state, the resistive element has another ON state, further where at the intermediate ON state, the resistive element has a resistance that is at least 10 times greater than a resistance of the resistive element at the another ON state; and applying test data to the resistive element.
US08890565B2 Logic signal transmission circuit with isolation barrier
A logic signal transmission circuit includes a driving circuit, an isolation section, and a latch section. The driving circuit converts an input digital signal to a differential digital signal. The isolation section blocks direct current and passes the differential digital signal. The latch section has even numbers of inverters which are connected in a loop and output a logic signal by turning ON and OFF a power supply voltage in a complementary manner. An input impedance of the latch section is set so that when a logic level of the differential digital signal changes, a transient voltage inputted through the isolation section to the latch section changes across a threshold voltage of the latch section. When the transient voltage changes across the threshold voltage, a logic level of the logic signal changes.
US08890562B1 At-speed testing of multi-die integrated circuits
An integrated circuit (IC) structure can include an interposer including a plurality of inter-die wires and a first die coupled to the interposer. The first die can include a first output including a first flip-flop coupled to a first inter-die wire of the plurality of inter-die wires and a first input including a second flip-flop coupled to a second inter-die wire of the plurality of inter-die wires. The IC structure can include a second die coupled to the interposer. The second die can be configured with a first circuit design forming circuitry that couples the first inter-die wire to the second inter-die wire.
US08890561B2 TCP-type semiconductor device and method of testing thereof
A semiconductor device includes a base film, a semiconductor chip mounted on the base film, and a plurality of leads formed on the base film, each of the leads including one end coupled to the semiconductor chip and another end being opposite to the one end. The another end of a first one of the leads and the another end of a second one of the leads are located at different positions respectively between the semiconductor chip and a cut line along which the base film is cut.
US08890560B2 Crack sensors for semiconductor devices
Crack sensors for semiconductor devices, semiconductor devices, methods of manufacturing semiconductor devices, and methods of testing semiconductor devices are disclosed. In one embodiment, a crack sensor includes a conductive structure disposed proximate a perimeter of an integrated circuit. The conductive structure is formed in at least one conductive material layer of the integrated circuit. The conductive structure includes a first end and a second end. A first terminal is coupled to the first end of the conductive structure, and a second terminal is coupled to the second end of the conductive structure.
US08890557B2 Built-in self-test method and structure
A method of testing a semiconductor wafer and a related structure. In various embodiments, a method includes: placing a probe on a first chip on the semiconductor wafer; testing a scribe line automatic built-in self-test (ABIST) for the first chip to search for a fault; progressively testing a subsequent scribe line ABIST for a subsequent chip on the semiconductor wafer in response to determining the ABIST for the first chip does not indicate the fault; moving the probe point to the subsequent chip and retesting the subsequent scribe line ABIST in response to determining the ABIST for the subsequent chip indicates a fault; and testing a further subsequent scribe line ABIST for a further subsequent chip on the semiconductor wafer in response to determining the retesting of the subsequent scribiline ABIST does not indicate a fault in the subsequent scribe line ABIST.
US08890551B2 Test key structure and method for measuring step height by such test key structure
A test key structure for use in measuring step height includes a substrate, and a pair of test contacts. The substrate includes an isolation region and a diffusion region. The test contact pair includes a first test contact and a second test contact for measuring electrical resistances. The first test contact is disposed on the diffusion region and the second test contact is disposed on the isolation region.
US08890550B2 Electrical device for detecting moisture
An electrical device for detecting moisture has a detection cable (10a, 10b, 10c) made up of a first element (1) and of a second element (2a, 2b, 2c) which elements are elongate and electrically conducting and separated by a polymer-based material (3), and an electrical resistance measurement appliance intended to measure the electrical resistance between the first and second elements of the the cable, where the material (3) is a non-soluble and moisture-sensitive material.
US08890549B2 Differential sand compaction sensor
A device with one or more sensors for monitoring the effectiveness of sand compaction on a production line. The sensor's response measures the changes in sand compaction, which is affected by the mechanics of the vibration system, changes in the sand properties, and environmental changes. A sensor comprises multiple chambers where the sand is compacted, with each of these chambers having a different difficulty in resisting sand filling and compaction. The difficulty of filling and compacting the sand in these chambers can be controlled using factors such as geometry of each of the chambers and direction of the fill and compaction of sand.
US08890548B2 Compensating circuit having programmable capacitance array for measuring AC voltage
A compensating circuit which has a programmable capacitance array for measuring AC voltage is disclosed in the present invention. The compensating circuit includes a pair of first leads for linking to an AC circuit; a variable capacitor, electrically linked to the first leads, for providing different capacitance value according to a programmable capacitance array; and a control unit, electrically linked to the first leads, for changing the capacitance value of the variable capacitor as one capacitance of the programmable capacitance array according to an external instruction. Since the capacitance of the compensating circuit is changeable, and AC voltage meter designed with the compensating circuit is able to measure voltage in wider range of frequency.
US08890541B2 Method and apparatus for calibrating deep-reading multi-component induction tools with minimal ground effects
An apparatus and method for calibrating a multi-component induction logging tool. The method may include orienting a Z-transmitter coil to be substantially orthogonal to at least one Z-receiver coil, positioning an X-transmitter coil disposed on the logging tool so that the X-transmitter coil is substantially parallel to a conducting surface; encompassing the Z-transmitter coil, the X-transmitter coil, and at least one Z-receiver coil of the logging tool with at least one conducting loop of a calibrator; and calibrating the logging tool using the calibrator. The apparatus may include a calibrator configured to receive the logging tool. The Z-transmitter coil and the Z-receiver coil may be located on separate subs that are detachable from one another.
US08890535B2 Power supply aging system and load balance control method
A power supply aging system and a load balance control method. The power supply aging system includes: a system share supply unit (201) for producing a DC voltage for the need of the system constant current balance, a renewable load unit (202) for converting a low DC voltage outputted by a unit under test (200) to a high DC voltage, a DC to AC converting unit (203) for converting the high DC voltage to the AC voltage needed by the unit under test. The AC voltage is transmitted to the unit under test through a renewable AC bus. The system does not need any isolation transformer or the authorization from power supplying enterprises. The system can balance the DC load sharing, reduce the cost, improve the efficiency of electrical energy feedback and reduce the energy waste.
US08890534B2 Surface ionization detector
The present invention refers to a surface ionization detector comprises an emitter, a heating rod, a collecting electrode, a reducing liner and a housing. The emitter is made of molybdenum, platinum or alloy, and in the form of cylinder or a wire spiral. The heating rod heats and supports the metal emitter. When the heating rod is heated to 300-500° C., organic amine compounds collide with the surface of the emitter, generating positive ions through surface thermal ionization and thus are detected. The lowest detecting limit value of tertiary amine by the detector in the present invention can achieve to 10−14 g/s. The response to other hydrocarbons, ketones, etc., is 5-6 orders of magnitude lower than that of organic amines. The detector can selectively detect amines, hydrazines and their derivatives, and so on. The detector can be used as a detector for a gas chromatography system adopting capillary column or packed column, or alternatively be used alone as a sensor.
US08890533B2 Apparatus for inspecting light emitting diode package and inspecting method using the same
An apparatus for inspecting a light emitting diode (LED) package is provided to inspect an LED to determine whether or not it is defective, and discard the LED when the LED is defective. The apparatus for inspecting an LED package includes: an inspection unit inspecting an LED through a visual inspection to determine whether or not the LED is defective; and a defective product rejection unit discarding the LED when the LED is determined to be defective on the basis of inspection results from the inspection unit among LEDs supplied from the inspection unit. Because the operation of inspecting LEDs and discarding a defective LED are automated and can be rapidly processed as a sequential process, productivity can be improved.
US08890530B2 Magnetic resonance imaging method, magnetic resonance imaging apparatus, and control device of magnetic resonance imaging apparatus
According to one embodiment, an MRI apparatus includes a signal acquisition unit, an image generating unit, a position acquiring unit, and a correction unit. The signal acquisition unit acquires a magnetic resonance signal produced from an object by applying a gradient magnetic field and an RF pulse in an imaging space where the object is placed. The image generating unit reconstructs image data on the object based on the magnetic resonance signal. The position acquiring unit acquires an imaging region as positional information in the imaging space. The correction unit brings a distribution of the gradient magnetic field close to a target distribution by transforming a waveform of the gradient magnetic field based on the positional information and a time constant of an eddy-current magnetic field to cancel the eddy-current magnetic field.
US08890527B1 Methods of radio frequency magnetic field mapping
Methods for measuring B1 values in an MRI sample space, generating B1 maps and using B1 maps to correct B1 profiles are disclosed.
US08890523B2 Magnetic resonance imaging method, system and computer-readable storage medium
In a magnetic resonance method and system to acquire an MR image using a pulse sequence that sets the magnetization vector in the steady state into a stable oscillation under RF excitation pulses radiated at a time interval of time TR, the phase coding gradients for coding a k-space line in k-space of the pulse sequence (which k-space corresponds to the desired MR image) are switched such that the first moment of the phase coding gradient is minimal at the point in time of the radiation of an RF excitation pulse without the repetition time TR being extended relative to pulse sequences with unminimized phase coding gradients.
US08890519B2 Printed circuit board comprising two coils
A printed circuit in which, in going from one end to another, a same conductive line is wound successively: around the first winding axis to form at least one half-turn of a first coil, then around the second winding axis to form at least one half-turn of a second coil, then around the first winding axis to form at least one half-turn of a first coil, then around the second winding axis to form at least one half-turn of a second coil.
US08890516B2 Tension measurement apparatus
A tension measurement apparatus that can carry out tension measurement of superior reproducibility with high sensitivity even for a target object of a stranded wire structure is provided. A cylindrical magnetizer arranged to surround a portion of a long magnetic element that becomes the target object of measurement direct-current magnetizes the magnetic element in the longitudinal direction up to the range of approach to saturation magnetization. Using a Hall element (magnetic sensor) arranged in proximity to the magnetic element at the central region in the longitudinal direction of the magnetic domain, the spatial magnetic field intensity in the neighborhood of the surface of the magnetic element, greatly differing corresponding to stress variation, is detected. Based on the detection value, the tension acting on the magnetic element is measured. Accordingly, a measurement result of superior reproducibility with high sensitivity is obtained. The tension measurement apparatus is applicable even to a target object of a stranded wire structure.
US08890514B2 Magnetic multi-periodic absolute position sensor
The disclosure relates to a magnetic position sensor including at least one permanent magnet. The disclosure also relates to a magnetic device for detecting a torque between a first shaft and a second shaft that are connected via a torsion bar. The aim of the disclosure is to provide a device for determining the multi-periodic absolute position of a magnetized unit. The subject of the disclosure is therefore a magnetic position sensor including at least the following: a magnetized unit, a first magnetosensitive probe and a second magnetosensitive probe. The second magnetosensitive probe is capable of measuring a number of complete rotations of the magnetic field in an absolute, incremental and reversible manner so as to determine a second datum relating to the position of the magnet, whether or not this second magnetosensitive probe is powered. The sensor further includes a module for calculating the absolute position of the magnet on the basis of the first and second data coming from the first and second probes respectively.
US08890513B2 Device for measuring the angle of rotation of two objects rotating in relation to each other
Device for measuring the rotating angle of two objects rotating in relation to each other, with a transmitter which is assigned to one of the objects and which emits light that is either polarized or becomes polarized by means of a polarization filter, and with a polarization-sensitive analyzer such that the transmitter and the analyzer rotate relative to each other as dependent on the rotating angle, and with a receiver which measures the intensity of light passing through the analyzer in order to create a signal that is dependent on the rotating angle, where a magnetized element is positioned on one of the objects and a sensor for detecting a magnetic field is positioned on the other object.
US08890510B2 Battery wake-up
Circuits and methods for fast detection of a low voltage in the range of few μVolts have been achieved. In a preferred embodiment the low voltage represents a current via a shunt resistor and the circuit is used to generate a digital wake-up signal. In regard of the wake-up application the circuit invented is activated periodically and in case of a certain level of the voltage drop, e.g. 50 μV, at the shunt resistor. The time required for a measurement of the voltage drop is inclusive calibration and integration time far below 1 ms. It is obvious that the circuit invented can be used for any measurements of very small voltages.
US08890508B2 Adaptive filters for fiber optic sensors
Systems and methods related to optical current and voltage sensors and, more particularly, to filters for use in such sensors. A fiber optic current sensor comprising: a light source; a polarization beam splitter connected to said light source having a reciprocal port and a non-reciprocal port; a Faraday rotator connected to said polarization beam splitter; a first quarter-wave plate connected to said Faraday rotator; a polarization maintaining fiber connected to said first quarter-wave plate; a second quarter-wave plate connected to said polarization maintaining fiber; a sensing fiber connected to said second quarter-wave plate; a detector connected to said polarization beam splitter via said non-reciprocal port and having an output; and an adaptive filter for filtering said output.
US08890505B2 System and method for estimating and providing dispatchable operating reserve energy capacity through use of active load management
A method for generating a value for available operating reserve for electric utility. Electric power consumption by at least one device is determined during at least one period of time to produce power consumption data, stored in a repository. Prior to a control event for power reduction and under an assumption that it is not to occur, power consumption behavior expected of the device(s) is determined for a time period during which the control event is expected to occur based on stored power consumption data. Additionally, prior to the control event, projected energy savings resulting from the control event, and associated with a power supply value (PSV) are determined based on devices' power consumption behavior. Amount of available operating reserve is determined based on projected energy savings.
US08890501B2 System and method for soft-starting a power converter with a pre-charged output
A method for soft-starting a voltage generator includes disabling an output driver; detecting the voltage on an output node; ramping a reference voltage at a controlled rate from a predetermined first level until the reference voltage reaches a second level that is a predetermined function of said output node voltage; enabling the output driver when the reference voltage reaches said second level; and then ramping the reference voltage and the output node voltage at a controlled rate to a boot voltage level. A soft-start circuit for an output voltage generator includes a comparator for causing a ramp generator to ramp the reference voltage and the voltage on the output node to a boot voltage level at a controlled rate once the comparator detects that the reference voltage is substantially equal to the voltage on the output node.
US08890496B2 Drive controller
A drive controller for driving an inductive load connected to a node between first and second switches connected in series with a direct current voltage source includes a first diode, a series circuit of a second diode and an inductor, and a control circuit. The first diode is a parasitic diode of the first switch and connected in antiparallel with the first switch. The series circuit is connected in parallel with the first diode. The control circuit drives the inductor load by applying a control voltage to the first switch before applying a first ON-voltage to the second switch. The first ON-voltage turns ON the second switch. The control voltage is greater than zero and less than a second ON-voltage. The second ON-voltage turns ON the first switch. The control voltage causes the first switch to operate in weak inversion.
US08890494B2 Wide input voltage range power supply circuit
A wide input voltage power supply circuit for a load includes a first regulation stage and a second regulation stage. The first regulation stage includes a linear regulator circuit configured to maintain a bus voltage within a predefined voltage range when an input voltage exceeds a predefined input level. A second regulation stage includes a buck converter circuit configured to regulate an average bus voltage to a predetermined load level. The second regulation stage includes an under voltage lockout configuration, with the under voltage lockout configured to set a minimum turn-on voltage for the load.
US08890489B2 Capacitive power supply for handheld device
A handheld device includes an electronic instrument and a capacitive power supply for storing and delivering power to the electronic instrument. The capacitive power supply includes at least one capacitor, and an electronic circuit operable to boost a voltage from the capacitor to a higher voltage for use by the electronic instrument. The capacitive power supply can be rapidly recharged.
US08890488B2 Power supply apparatus and method of controlling the same
A power supply apparatus includes a controller. If the controller detects that the internal resistance of a battery detected by an internal resistance detecting unit is relatively high, then the controller switches a first switch from an open state to a closed state using a first threshold value with respect to the voltage difference between a battery voltage and a system voltage, and if the controller detects that the internal resistance of the battery is relatively low, then the controller switches the first switch from the open state to the closed state using a second threshold value which is smaller than the first threshold value.
US08890487B2 Method for reducing standby power and wireless device using the same
The present invention provides a wireless device and method for reducing standby power. The method for reducing standby power of the wireless device includes the steps of: charging a charging battery with power supplied from an AC commercial power source in a normal mode of the wireless device, blocking the power of the AC commercial power source and converting an operation state of the wireless device so that the wireless device is in a standby mode when an operation-off signal used for turning off a predetermined device is transmitted from an outside. In this case, the wireless device receives the power with which the charging battery has been charged. In a standby mode, the wires device is periodically converted to be in a normal mode to transmit an operation state inquiry signal to the outside, so that it is possible to normally control the predetermined device.
US08890485B2 Charger circuit
A charger circuit comprising: a charging path coupled between an input voltage and a battery; a power switch on the charging path; a switch control circuit controlling the power switch; a timer counting a charging period; and a low current control circuit issuing a signal to the switch control circuit to control the power switch such that a charging current is maintained to be a predetermined low current when the timer counts to a predetermined maximum charging period.
US08890478B2 Rechargeable battery charging case with a supply unit for supplying energy
The invention is based on a rechargeable battery charging case, in particular a cordless handheld power tool case, having at least one battery attachment device and a case body. It is proposed that the rechargeable battery charging case has an electrical energy output and a supply unit, which in at least one operating state is connected to the energy output and to the battery attachment device for supplying the energy output.
US08890471B2 Wireless charging device
A wireless charging device includes a casing, a carrying member, and a first coil assembly. The casing includes a receiving space, an entrance side, and a supporting part. The carrying member includes a carrying plate, a first elastic structure, and a second elastic structure. The supporting part is disposed within the receiving space. The carrying member is located over the supporting part. The first coil assembly is fixed on the carrying plate. When the entrance side of the casing is fixed on a first surface of an object, the supporting part is presses against the first elastic structure and the second elastic structure, allowing the first elastic structure and the second elastic structure to be pushed by the first surface of the object and subject to deformation. Consequently, a balanced supporting force is generated to maintain a specified distance between the first coil assembly and the first surface of the object.
US08890470B2 System for wireless power transfer that supports interoperability, and multi-pole magnets for use therewith
In the field of wireless power, to enable interoperability between chargers and receivers, it is important that the two parts of the system (the charger and receiver) can communicate in a manner that allows operation. With the proliferation of different communication schemes, a multi-protocol system that can adapt and interoperate with different communication protocols allows maximum interoperability. Described herein are systems and methods for providing such multi-protocol operation and maximum interoperability. Also described herein are methods for use of magnets in or around magnetically sensitive devices such that the operation of such a device is not impaired. Applications in various devices and systems are described. In particular, applications for fastening mobile devices to their cases or other surfaces, and also alignment or attachment for power transfer or charging are described.
US08890465B2 Circuit arrangement for modular drive power converters
The invention relates to power converter circuits which are suitable, in particular, for mobile drive systems with stringent requirements in terms of weight minimization and availability as well as direct attachment to rotating field machines. Inter alia, the strictly modular design of the electronics and the very low expenditure on passive filter elements by virtue of the principle involved are characteristic.
US08890460B2 Servo control device
A servo control device includes a follow-up control unit that controls a control target that drives a mechanical system by a motor, a command function unit that has input therein a phase signal θ indicating a phase of a cyclic operation performed by the control target, and that calculates a machine motion command according to the phase signal θ by a preset first function, a second derivative unit that uses a second function obtained by second-order differentiating the first function with respect to the phase signal to calculate a value of the second function according to the phase signal as a second-order differential base signal, a correction-value computation unit that computes a first command correction value for correcting the motor motion command by using a product of a square value of the phase velocity, the second-order differential base signal, and a first constant, and a correction-value addition unit that calculates the motor motion command based on an added value of the first command correction value and the machine motion command.
US08890458B2 Selectively biased robot mechanism platform for a storage library
Systems and methods are described for providing selective biasing of a platform in context of one or more modules. While moving in the Z-direction with respect to the modules, the platform travels in an unbiased manner. For example, one or more alignment features on the platform are engaged with one or more alignment features on the modules to allow the platform to substantially float within an X-Y region defined by the alignment features. When the platform reaches its desired Z-location, magnetic features bias the platform into a substantially locked and repeatable X-Y position (e.g., using permanent magnets and/or electromagnets). In some embodiments, the platform is locked into an accurate position to allow a robotic mechanism of a storage library to move around efficiently within the modules while still being able to perform operations that involve accurate positioning (e.g., pick and place operations on media cartridges).
US08890455B2 Electric vehicle control device
Disclosed herein are electric vehicle control device which can distribute the heat generated by the semiconductor devices in the DC/AC converter efficiently. Also disclosed herein are methods of converting DC to AC while keeping the heat value of the semiconductor devices stable.
US08890452B2 Control device for electrically driven door
A control device for an electrically driven door is provided that can enhance the sensitivity of detection of a door pinch state and that can prevent a passenger from being pressed when the door pinch state occurs. The control device includes a driving force instruction value producing unit that outputs a driving force instruction value of the electrically driven door, a state observing unit that estimates a mechanical resistant force to a door driving system, a reference model that determines a dynamic characteristic of the electrically driven door to the mechanical resistant force estimated by the state observing unit, a gain compensator that computes a control compensation value that makes an output of the reference model coincide with an actual speed of the electrically driven door; and an adder that adds the control compensation value computed by the gain compensator to the driving force instruction value.
US08890447B2 Startup control circuit of drive circuit
Startup of motor is reliably executed and sonic noise is reduced. A control circuit controls a selector to apply control to output a full-drive waveform at startup and then output a PWM modulation waveform. The full-drive waveform which is an alternating waveform in which positive and negative are inverted at 180° is output. Then, the PWM drive waveform is selected.
US08890445B2 Drive control device and drive control method
A drive control device includes a signal generation unit, a position detection unit, a speed detection unit, and a drive control unit. Based on at least one light receiving signal inputted from at least one light receiving unit of an encoder, the signal generation unit digitizes the at least one light receiving signal to generate at least one non-interpolated digital encoder signal, and digitizes and interpolates the at least one light receiving signal to generate at least one interpolated digital encoder signal. The position detection unit detects a position of an object based on the at least one interpolated digital encoder signal. The speed detection unit detects a speed of the object based on the at least one non-interpolated digital encoder signal. The drive control unit performs a drive control of the object based on the above-detected position and speed.
US08890438B2 Light-emitting diode driving device, light-emitting diode device, and method for driving the same
A light-emitting diode driving device includes a light-emitting diode driving chip, for driving the one or more light-emitting diode strings according to a feedback voltage associated with the one or more light-emitting diode strings, and a voltage limiter, having a terminal coupled to the light-emitting diode driving chip and another terminal coupleable to the one or more light-emitting diode strings, for generating the feedback voltage for provision to the light-emitting diode driving chip according to a bottom voltage of the one or more light-emitting diode strings, and limiting the feedback voltage not to exceed a preset level.
US08890437B2 Method and system of automatically adjusting light intensity of a lighting fixture having multiple emitters
A system for automatically adjusting light intensity of a lighting fixture having multiple emitters, includes a power supply for supplying at least one current source to multiple emitters, at least one first emitter capable of emitting light of a first wavelength, at least one second emitter capable of emitting light of a second wavelength and a luminous intensity adjusting circuit for adjusting light intensity of the at least one first emitter. Particularly, the luminous intensity adjusting circuit stabilizes a first current distributed from a feeding current of the at least one current source and the multiple emitters collectively emit light at a predefined variable light-intensity.
US08890436B2 Color temperature adjustable LED lamp
A color temperature adjustable LED lamp is disclosed, which includes a 3-way lamp socket and a 3-way lamp head. The 3-way lamp socket has a 3-way switch. The 3-way lamp head is connected to the 3-way lamp socket and has a first LED array and a second LED array. The color temperature of the first LED array is different from the color temperature of the second LED array. The color temperature adjustable LED lamp includes a mains detecting circuit for detecting a conducting state of a first live wire and a second live wire in the 3-way switch to selectively operate the first LED array, the second LED array or alternatively operates the first and second LED array.
US08890434B2 System and method for single conductor power, control, and feedback system
To control multiple electronic circuits organized in a series configuration, this document introduces a single-wire power, control, and feedback system. Specifically, individually controlled electronic circuits are arranged in a series configuration that is driven by a control unit located at the head of the series. The head-end control unit provides both electrical power and control signals down a single wire to drive all of the electronic circuits in the series in a manner that allows each electronic circuit to periodically draw power from the single wire and receive control information. Each electronic circuit in the series may communicate back to the head-end control unit by drawing power or not during a specified time slot.
US08890430B2 Dielectric-free triode field emission display device based on double-gate/single-cathode type electron emission units and the device drive methods
The present invention relates to display manufacturing technology, especially for a dielectric-free triode field emission display device based on double-gate/single-cathode type electron emission units and the device drive methods. This device comprises parallelly positioned anode and cathode/gate plates, during production, gate/cathode/gate electron emission units are set on the cathode/gate plate side by side. The spacing between cathode and gate electrodes is vacuum circumstance. For each cathode, an anode is positioned on the anode plate, facing the cathode. And the voltages applied on the cathode and gate electrodes are to scan and the anode voltage is to adjust the signal. When the electrodes on the cathode/gate plate take on fixed roles, fixed voltages are used to drive the device. When these electrodes on the cathode/gate plate can be used interchangeably as cathode or gate electrodes, respectively, pulse scanning method is used to drive the device.
US08890426B2 Portable lighting device
A method for controlling a portable lighting device. The device has a switched-mode power supply, a light source, a high frequency switch, a controller controlling the operation of the light source and a user interface for inputting commands to the controller. A DC power source has a negative pole that is connected by only one single electric contact with the lighting device tail. The method for controlling a portable lighting device includes connecting a DC power source, an inductor, a light source, a high frequency switch and a resistor in series, measuring a voltage across the resistor, and controlling the high frequency switch dependent on the voltage measured across the resistor.
US08890424B2 Illumination device, illumination system, and lamp
The present invention provides an illumination device, an illumination system, and a lamp. The illumination system includes the illumination device and a light modulation module. The illumination device includes a light emitting diode (LED) array, an alternating current (AC) current source, and an output power control module. The AC current source is electrically coupled to the LED array. The output power control module is electrically coupled to the LED array and the AC current source. The LED array, the AC current source, and the output power control module together form a closed-loop control loop. The light modulation module is electrically coupled to the closed-loop control loop for modulating illumination brightness of the LED.
US08890422B2 LED power supply
A power supply circuit having at least two conversion stages wherein the first conversion stage includes input terminals for connection to an ac or dc supply, an electronic converter with constant output current characteristics and output terminals for connection to at least one second conversion stages. Each second conversion stage includes input terminals to receive a substantially constant current input from a first conversion stage, current multiplier circuit and output terminals for connection to a load. The electric converter of the first conversion stage is a high frequency resonance converter having a series parallel resonant converter with an inductance connected in series with a capacitor. The output terminals for connection to the second conversion stage are connected across the capacitor and the inductance. Circuits are particularly suitable for lighting applications, for controlling the large number of LEDs in LED display panels or in backlighting for televisions and LCD displays.
US08890418B2 Lighting fixture that self-estimates its power usage and monitors its health
Apparatuses, methods and systems for lighting fixture determining its power usage and monitoring its operational health are disclosed. One embodiment includes a method of a lighting fixture determining its power usage. The method includes sensing, by an ambient light sensor, an intensity of light emitted from the lighting fixture, and estimating power usage of the lighting fixture based on the sensed intensity of light.
US08890414B2 Lighting module
The present disclosure relates to a lighting module wherein a DC-DC converter and an LED module are provided as an integral part of the lighting module, and an AC-DC module is provided separately from the lighting module. The AC-DC module is effectively a remote power supply that can be easily replaced without having to replace, reconfigure, or otherwise modify the lighting module. With this configuration, the DC-DC module may be tuned for the particular LED module of the lighting module, and in the case of a failure of the AC-DC module, the AC-DC module can be replaced without having to replace or retune the DC-DC module.
US08890413B2 Ignition circuit for igniting a plasma fed with alternating power
In an ignition circuit for igniting a plasma fed with alternating power in a gas discharge chamber, having two line sections for connection to an alternating power source and at least one line section for connection to a housing earth of the gas discharge chamber, at least one series connection of a non-linear element and an energy store is connected between the line sections for connection to an alternating power source, and the line section for connection to a housing earth of the gas discharge chamber is connected to a connection node between an energy store and a non-linear element.
US08890412B2 Plasma source electrode
An electrode tile configuration is disclosed. The tile has contoured edges dimensioned to control any coupling effects. A plurality of tiles in a matrix configuration is also described.
US08890407B2 Semiconductor device and light-emitting device
One feature of a semiconductor device of the present invention is to include an electrode that serves as an electrode of a light-emitting element. The electrode includes a first layer and a second layer. Further, end portions of the electrode are covered with a partition layer having an opening portion. Moreover, a part of the electrode is exposed by the opening portion of the partition layer. One feature of a semiconductor device of the present invention is to include an electrode that serves as an electrode of a light-emitting element and a transistor. The electrode and the transistor are connected electrically to each other. The electrode includes a first layer and a second layer. Further, end portions of the electrode are covered with a partition layer having an opening portion. Moreover, the second layer is exposed by the opening portion of the partition layer.
US08890406B2 Flat panel display and method of fabricating the same
A flat panel display and a method of fabricating the same are provided. The flat panel display includes a conductor, and a passivation layer pattern disposed on a side end of the conductor. As such, the passivation layer pattern can prevent or reduce corrosion and damage of the conductor. In one embodiment, the conductor includes a conductive layer formed of a material selected from the group consisting of aluminum and an aluminum alloy. The passivation layer pattern may be formed of an organic material or an inorganic material.
US08890404B2 Organic electroluminescent device
An organic electroluminescence device of the present invention adapts a new concept in its configuration to improve its efficiency in addition to obtain a high reliability and good yielding. The organic electroluminescent device having an electroluminescent film containing an organic material capable of causing an electroluminescence and being arranged between a first electrode and a second electrode, includes: a carrier generation layer, which is a floating electrode, is embodied in the electroluminescent film; an insulting film between the first electrode and the electroluminescent film, and an insulating film between the second electrode and the electroluminescent film, wherein the organic electroluminescent device is driven by an alternating current bias.
US08890398B2 Spark plug for gasoline engines
Described is a spark plug for gasoline engines with an elongated hollow body made of metal, said body having a forward end with an undercut formed by an interior annular shoulder of the body and a rear end, with an elongated ceramic insulator which is mounted in the body and has a rear end that projects beyond the rear end of the body and has a forward end beyond which the forward end of the body projects, with a center electrode which is inserted into the insulator, projects beyond the forward end thereof, and is connected to a metal connection pin in an electrically conductive manner, said connection pin projecting beyond the rear end of the insulator, and with at least one ground electrode which starts from the forward end of the body and is approached to the center electrode to an electrode distance (EA) to form a spark gap.
US08890397B2 Igniter assembly including arcing reduction features
A corona igniter (20) includes a metal shell (32) with a corona reducing lip (38) spaced from an insulator (26) and being free of sharp edges (40) to prevent arcing (42) in a rollover region and concentrate the electrical field at an electrode firing end (48). The corona reducing lip (38) includes lip outer surfaces (88) being round, convex, concave, or curving continuously with smooth transitions (90) therebetween. The corona reducing lip (38) includes lip outer surfaces (88) presenting spherical lip radii (r1) being at least 0.004 inches. The corona igniter (20) also includes shell inner surfaces (104) and insulator outer surfaces (75) facing one another being free of sharp edges (40).
US08890393B2 Spark gap having a plurality of series-connected individual spark gaps, which are located in a stack arrangement
The invention relates to a spark gap comprising a number of series-connected individual spark gaps which are placed in a stack arrangement, which are spaced apart from each other by insulating material discs and are provided with a spring contact, the individual spark gaps including ring-shaped or disc-shaped electrodes, and further comprising control elements for influencing the voltage distribution over the stack arrangement. According to the invention the ring-shaped or disc-shaped electrodes required to form one of the respective individual spark gaps are each inserted into an insulating body and held by same in a centered manner. The respective insulating material discs are located between and fixed by the insulating bodies. A recess is provided inside the insulating body to receive and center the electrodes, whose shape is complementary relative to the contour of the respective electrode, wherein the recess comprises on the inner circumference at least partially elastic, resilient centering projections or centering noses.
US08890389B2 Electric motor
An electric motor includes an inner stator including inner magnetic poles arranged circumferentially, an outer stator including outer magnets arranged circumferentially, and a rotor rotatably disposed between the inner and outer stators. The rotor includes a shaft, a rotor core fixed to the shaft and a winding wound on the rotor core. The rotor core includes a ring shaped yoke having a plurality of inner teeth extending inwardly and a plurality of outer teeth extending outwardly. The winding includes a plurality coils each including an inner side received in a corresponding inner slot formed between adjacent inner teeth and an outer side received in a corresponding outer slot formed between adjacent outer teeth.
US08890388B2 Winding structure for a rectangular wire
In this winding structure for a rectangular wire, a coil is formed that is provided with: a core that forms a core main body; a teeth portion that is formed extending inwards in a radial direction from the core; and a jaw portion that is formed extending in a circumferential direction from a distal end on the inner side in the radial direction of the teeth portion, and in which a rectangular wire is wound in multiple layers around a slot that is formed surrounded by the teeth portion, the core, and the jaw portion. The ellipticity, which is a ratio of a width dimension relative to a thickness dimension of a cross-section of the rectangular wire, becomes larger as it is wound from inner layers of the coil towards outer layers thereof, and the ellipticity of the rectangular wire in each of the layers is set in accordance with the width dimension of the slot in each layer of the coil such that the generation of gaps between the slot and the rectangular wire is suppressed.
US08890385B2 Rotor for rotary electric machine
A rotor for a rotary electric machine has a plurality of magnetic poles provided at intervals in a circumferential direction of a rotor core, at an outer periphery of the rotor core. Each of the magnetic poles includes a central magnet, a pair of circumferential-direction magnets disposed on both sides of the central magnet in the circumferential direction such that a spacing between the pair widens towards an outer periphery of the rotor core, and low permeability regions provided in the vicinity of end portions of the central magnet in the circumferential direction, and having a permeability lower than a magnetic material of the rotor core. The rotor core is formed such that a width of a magnetic path entrance portion that is formed between a magnetic-pole inward side face of the circumferential-direction magnet and the adjacent low permeability region decreases towards an outer peripheral face of the rotor core.
US08890377B2 Mounting arrangement for an electrical machine
A mounting arrangement for locating a stator (10) within a casing (16) of a rotating machine comprises at least one mounting plate (12) adapted to engage with the stator (10) and the casing (16). The mounting plate (12) has a series of discrete apertures (20) therein. The apertures (20) extend through the plate (12) and are arranged in an array to provide a convoluted path which impedes the transmission of the dynamic forces through the plate (12) and into the casing (16). The apertures (20) render the plate (12) more resilient to the dynamic forces that the stator (10) experiences in operation. Each aperture (20) divides the plate (12) into portions which provide anisotropic stiffness in the radial and tangential directions.
US08890375B2 Multi-function vibrating device
A multi-function vibrating device is disclosed. The multi-function vibrating device providing sound producing and vibration functions includes a holder having a hollow space, a suspension divided into at least two parts, a vibration member suspended by the suspension and having at least a pair of receiving concaves for fixing the corresponding two parts of the suspension. The multi-function vibrating device has larger vibrating amplitude and small size.
US08890374B2 Uninterruptible power supply system for avoiding arcing generation and cabinet thereof
An uninterruptible power supply includes plural power units, plural output capacitor units, a capacitor energy bleeder circuit, plural output units, a detecting unit and a controlling unit. The capacitor energy bleeder circuit is electrically connected to the plural output capacitor units. The plural output units are connected with each other in parallel to issue the output voltage to the power output side and avoid returning electrical energy from the power output side back to the capacitor energy bleeder circuit. The detecting unit is used for detecting operating statuses of the plural power units. The controlling unit is used for controlling operations of the plural power units and the capacitor energy bleeder circuit. In response to a to-be-interrupted status of a specified power unit, the controlling unit controls the capacitor energy bleeder circuit to discharge electrical energy of the output capacitor unit corresponding to the specified power unit.
US08890373B2 Power distribution systems using distributed current sensing
A system includes a plurality of power conversion devices, for example, uninterruptible power supply (UPS) devices, having inputs coupled in common to a power input line and each including a control circuit configured to operate the power conversion device responsive to a current sense signal at a current sense input thereof. The system further includes a first current transformer having a primary winding inductively coupled to the power input line, a current sense line coupled in series with a secondary winding of the first current transformer and a plurality of second current transformers, each including a primary winding inductively coupled to the current sense line and including respective secondary windings coupled to respective ones of the current sense inputs.
US08890367B2 Resonance power receiver that includes a plurality of resonators
Provided is a resonance power receiver, including a first resonator, a second resonator to receive a resonance power and a phase shifter to shift the phase of the signal received via the second resonator such that the signal received via the first resonator and the signal received via the second resonator are in phase.
US08890365B2 Fuel cell device and method for feeding electrical current to electrical network
A method is disclosed for producing electrical current by a fuel cell device, which inputs electrical current to an electrical network. A fuel cell device can be arranged to be parallel connected to the electrical network. A phase reference signal can be utilized in the inputting of the electrical current, and electrical current inputted to electrical network can be current controlled by a power transformer having a power stage. The fuel cell device can be switched off from the electrical network when a malfunction occurs in the electrical network. The fuel cell device can be changed, using the phase reference signal, to the switched off operation mode for performing voltage controlled operation of the power transformer. A controllable load can be used for maintaining a power stability between the voltage controlled power transformer and other parts of the fuel cell device. When the malfunction has vanished, the fuel cell device can be changed, using the phase reference signal, to a switched on operation mode for performing current controlled operation of the power transformer.
US08890363B2 Automatic system for synchronous enablement-disablement of solar photovoltaic panels of an energy production plant with distributed DC/DC conversion
A solar energy plant may include a DC bus, photovoltaic panels coupled in parallel to the DC bus, each photovoltaic panel having a DC/DC converter, and a first controller controlling the DC/DC converter depending on whether a voltage on the DC bus is equal to or greater than a first threshold and lower than or equal to a second threshold. The solar energy plant may include a DC/AC inverter coupled to the DC bus and outputting an output AC voltage, an auxiliary start-up power supply charging a parasitic capacitance on the DC bus up to the first threshold, and a second controller turning on the auxiliary start-up power supply based upon a start command, and turning off the auxiliary start-up power supply and simultaneously turning on the DC/AC inverter.
US08890362B2 Semiconductor device
A semiconductor device includes a plurality of internal circuits, a plurality of low drop output regulators, and a power management unit. The plurality of low drop output regulators are configured to reduce a power source voltage applied from an outside and generate supply voltages which are to be supplied to the plurality of internal circuits. The power management unit is configured to change a voltage value of the power source voltage in accordance with a state of combination of voltage values of the plurality of supply voltages generated by the plurality of low drop output regulators.
US08890361B2 Electric horizontal directional drilling machine system
An electric horizontal directional drilling machine. An electric horizontal directional drilling machine is powered by an electric power assembly. The power assembly is made up of a fuel cell and inverter, or multiple fuel cells with synchronized inverters. The electric motor operates hydraulic pumps or works independently to rotate, advance and retract a drill string and downhole tool through the earth and operate various machine functions. Mechanical functions of the drilling machine may also be satisfied through the use of electric rotary actuators (e.g., motors) and linear actuators (e.g., linear motors and solenoids).
US08890359B2 Power supply system and container data center including same
A power supply system provides power to a container data center. The power supply system includes a solar energy panel, to receive solar energy and output a direct current (DC) voltage. A direct current to alternating current (DC/AC) voltage converting unit is connected to the solar energy panel, to receive the DC voltage from the solar energy panel and converts the received DC voltages to an AC voltage, and outputs the converted AC voltage to the container data center.
US08890358B2 Emergency generator power system with reserved fire protection power
An emergency generator power system with reserved fire protection power includes a generator engine and a generator body, a main power circuit breaker, a control panel, and a circuit breaker for fire protection systems and a circuit breaker for other emergencies.The generator power system also includes a measuring instrument and a control instrument. The measuring system measures a power load change on a main power line passing via the main power circuit breaker. The control instrument is connected to the measuring instrument at an input side thereof and to the circuit breaker for other emergencies at an output side thereof. When the value of the power load change reaches a predetermined value, the circuit breaker for other emergencies is primarily broken, thereby keeping the main power circuit breaker from being broken before the breaking of the circuit breaker for other emergencies.
US08890357B2 Bathing system transformer device with first and second low voltage output power connections
A line voltage transformer device for a bathing installation includes a housing structure, with a line voltage electrical power connection including a line voltage wiring cable having an electrical connection at a distal end for connection to a line voltage AC supply outlet adjacent the bathing installation. A voltage transformer circuit is disposed within the housing and connected to the line voltage electrical power connection and is configured to transform AC line voltage electrical power from the line voltage electrical power connection to low voltage AC power at first and second low voltage AC terminals, wherein the low voltage AC power is delivered to the first and second low voltage AC terminals. A first low voltage wiring connection set is attached to the first and second low voltage AC terminals, the first wiring set including a first low voltage outlet connector for electrical connection to a first separate low voltage bathing installation device to provide low voltage AC power to the first separate device. A second low voltage wiring set is attached to the first and second low voltage AC terminals, the second wiring set including a second low voltage connector for connection to a second separate low voltage bathing installation device to provide low voltage AC power to the second separate device.
US08890355B2 Power distribution architecture for aircraft
An aircraft power distribution architecture includes a power rail extending generally along the length of an aircraft for receiving power from a generator, and for distributing power through plug-in modules located along the length of the power rail.
US08890352B2 Power generator for extracting energy from a liquid flow
The invention provides a device for extracting energy from a liquid flow. The device has a housing with one or more entry ports through which liquid flow can enter the housing and multiple exit ports through which liquid flow can leave the housing. An air compression chamber is provided along with multiple valve members which are operable to regulate flow of the liquid through the multiple exit ports. The exit ports are arranged in an array inclined in the direction of liquid flow and the valve members are operable to close the exit ports downstream of the liquid flow consecutively as the liquid flow is incident on each exit port, which progressively diverts flow of the liquid towards the air compression chamber and compresses air in the air compression chamber, and to open the exit ports on a return flow of liquid from the air compression chamber.
US08890351B2 Installation for producing electricity including a plurality of electricity producing devices capable of transforming mechanical energy into electric energy
An exemplary electricity producing installation includes electricity producing devices at least partly immersed in water, each electricity producing device having a rotary mechanical receiver and an alternator. The alternator includes at least one rotor and at least one stator. The at least one rotor of the alternator can be set into rotation by a rotary mechanical receiver. Each electricity producing device produces an electric AC signal with variable voltage and frequency conveyed by an at least partly immersed electric transport cable. The installation further includes an interconnection device having parallel electric transport cables connected to an input and which provide at the output a joint electric signal with variable frequency and voltage, the current amplitude of which is equal to the sum of the input currents. A partly immersed export cable connects the output of the interconnection device to a power conversion device out of the water.
US08890347B2 Wind power generation system and control method for the same
A wind power generation system 10 of an embodiment includes a rotor 40 having a hub 41 and blades 42, a nacelle 31 pivotally supporting the rotor 40, a tower 30 supporting the nacelle 31, an airflow generation device 60 provided in a leading edge of each of the blades 42 and having a first electrode 61 and a second electrode 62 which are separated via a dielectric, and a discharge power supply 65 capable of applying a voltage between the electrodes of the airflow generation device 60. Further, the system includes a measurement device detecting information related to at least one of output in the wind power generation system 10, torque in the rotor 40 and a rotation speed of the blades 42, and a control unit 110 controlling the discharge power supply 65 based on an output from the measurement device.
US08890345B2 Turbine with power conversion units with coupling means
The invention concerns a turbine driving a power conversion means, the power conversion means comprising several power conversion units, preferably of approximately similar power conversion capacity, that have coupling means for coupling the power conversion units to the turbine, the turbine having measuring means for determining the rotation speed of the turbine and/or a flow speed of the turbine driving flow of wind or water and a control system for controlling the coupling means in dependence of the determined rotation speed and/or flow speed. In accordance with the invention the control system has means for activating and deactivating the coupling means for the different the power conversion units so that the power conversion units are used equally.
US08890343B2 Electric generator disposed on a rotating turboprop part
An electrical energy generating device for a propfan-type aircraft propulsion unit rotor. The propulsion unit includes a turbomachine that drives in rotation at least one rotor including a plurality of blades arranged around an annular crown moving with the blades, which forms with its outer wall part of an outer envelope of the propulsion unit, the outer envelope being subjected to atmospheric conditions outside the propulsion unit. The turbomachine generates a flow of hot gases that exit via an annular hot vein, which is concentric with the moving annular crown, and defined for part of its surface by an inner wall of the moving annular crown, and includes, within the moving annular part, a mechanism to transform thermal energy into electrical energy, preferably by thermal diodes. Such a device, as an example, can find application to a device for controlling a pitch of rotors of a propfan-type propulsion unit.
US08890340B2 Fan configuration for an engine driven generator
Some embodiments relate to a generator that includes an alternator and an engine. The engine includes an output shaft that is coupled to a rotor of the alternator. The generator further includes a first fan that initially directs air in a first direction which is parallel to a longitudinal axis of the output shaft. A second fan that directs air in a second direction that is orthogonal to the longitudinal axis of the output shaft. The generator further includes an enclosure such that the alternator, the engine, the first fan and the second fan are within the enclosure. In some embodiments, the generator may further include a third fan that directs air in the direction that is orthogonal to the longitudinal axis of the output shaft and a fourth fan that directs air in a direction that is parallel to the longitudinal axis of the output shaft.
US08890336B2 Cylindrical bonding structure and method of manufacture
A cylindrical bonding structure and its method of manufacture. The cylindrical bonding structure is formed over the bonding pad of a silicon chip and the chip is flipped over to connect with a substrate board in the process of forming a flip-chip package. The cylindrical bonding structure mainly includes a conductive cylinder and a solder block. The conductive cylinder is formed over the bonding pad of the silicon chip and the solder block is attached to the upper end of the conductive cylinder. The solder block has a melting point lower than the conductive cylinder. The solder block can be configured into a cylindrical, spherical or hemispherical shape. To fabricate the cylindrical bonding structure, a patterned mask layer having a plurality of openings that correspond in position to the bonding pads on the wafer is formed over a silicon wafer. Conductive material is deposited into the openings to form conductive cylinders and finally a solder block is attached to the end of each conductive cylinder.