| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | Alarm system | US44894142 | 1942-06-29 | US2390449A | 1945-12-04 | MONTGOMERY ARVID N |
| 82 | Remote control mechanism for timepieces | US15964786 | 2018-04-27 | US10816936B2 | 2020-10-27 | David Hurni |
| Watch comprising a movement with an axially and rotationally movable main stem, and a control mechanism for the remote control of the main stem which comprises a secondary stem operable by a user and guided in rotation by guide means of a plate, and axial stop means for a secondary pinion integral in rotation with the secondary stem, and a transmission train meshed with the secondary pinion to transmit any rotation of the secondary pinion to the main stem, and further comprises an articulated connection, arranged to transmit any axial motion of the secondary stem to the main stem. | ||||||
| 83 | Wireless inductive pointer clock | US14528084 | 2014-10-30 | US09319829B1 | 2016-04-19 | Hua Wen Hsu |
| A wireless inductive pointer clock includes a wireless inductive receiver module for receiving a time code, a control circuit module electrically coupled to the wireless inductive receiver module for receiving the time code and converting the time code into a pointer drive signal, a movement electrically coupled to the control circuit module for receiving the pointer drive signal and driving by the control circuit module, and a pointer unit including a plurality of pointers drivable by the movement. The wireless inductive receiver module can receive the time code (hour, minute, second) of a smart phone or tablet computer, enabling the control circuit module to drive the movement and the pointers of the pointer unit so that the time on the wireless inductive pointer clock can be automatically synchronized to the time on the smart phone or tablet. | ||||||
| 84 | Synchronization of system time in electronic device | US12502933 | 2009-07-14 | US08971154B2 | 2015-03-03 | Zhiyu Wei |
| A method and apparatus for synchronizing a system time in an electronic device are provided. The method may include: when the electronic device is executing a boot process, disabling an external time obtaining function of the electronic device for obtaining an external reference time, obtaining an internal clock time from an internal clock unit of the electronic device and synchronizing a system time of the electronic device with the internal clock time; and when the electronic device has completed the boot process, enabling the external time obtaining function to obtain the external reference time. | ||||||
| 85 | Systems and methods for signal acquisition using predicted environmental context | US13036575 | 2011-02-28 | US08964510B1 | 2015-02-24 | Abdelmonaem Lakhzouri; Juha Tapani Rostrom |
| This disclosure involves methods and systems for a GNSS receiver to ascertain its environmental context and subsequently adjust the signal processing and search algorithms to provide improved acquisition. A rapid pre-scan is performed to determine the presence of relatively strong signals. If no satellites are found in the initial pre-scan, successively more sensitive searches are conducted until at least one satellite is acquired. The information from these pre-scans is used to predict the environmental context of the receiver and correspondingly tailor the parameters for the remaining search operations. | ||||||
| 86 | Radio-synchronous signal receiver for adjusting a time base, and method for activating the receiver | US12887137 | 2010-09-21 | US08630151B2 | 2014-01-14 | Arnaud Casagrande; Carlos Velasquez; Emil Zellweger |
| The receiver (1) is for receiving radio-synchronous signals for adjusting the time base of a timepiece. The receiver includes an antenna (2) for receiving radio-synchronous signals, a low noise amplifier (3), connected to the antenna, a frequency conversion unit (7) for converting the frequency of the filtered and amplified incoming signals from the amplifier, and a processing unit (8) receiving data signals (data_out) from the conversion unit for adjusting the time base. The conversion unit includes a local oscillator stage (10) with a quartz (12) for supplying oscillating signals (Sm) at a determined frequency, a mixer unit (4) for mixing the incoming signals with the oscillating signals from the oscillator stage to generate intermediate signals (IF), a bandpass filter (5) for filtering the intermediate signals (IF), and a demodulator (6) receiving the filtered intermediate signals and supplying the data signals. The local oscillator stage is configured automatically by a control signal (Cm) from the processing unit to adapt the frequency of the oscillating signals (Sm) in accordance with the incoming radio-synchronous signal frequency, so that the intermediate signal (IF) frequency is within the frequency band of the bandpass filter. | ||||||
| 87 | Virtual real-time clock based on time information from multiple communication systems | US13033036 | 2011-02-23 | US08395969B2 | 2013-03-12 | Dominic Gerard Farmer |
| Method and apparatus to implement a “virtual” real-time clock at a terminal based on time information from multiple communication systems. At least one system (e.g., GPS) provides “absolute” time information for the virtual real-time clock, and at least one other system (e.g., a cellular system) provides “relative” time information. The virtual real-time clock is “time-stamped” with absolute time as it becomes available from the first system. Relative time (which may be received from multiple asynchronous transmitters) is mapped to the timeline of the virtual real-time clock as it is received from the second system. Absolute time at any arbitrary time instant on the timeline may then be estimated based on the absolute time from the first system and the relative time from the second system. Absolute times from the first system for two or more time instants may also be used to calibrate the relative time from the second system. | ||||||
| 88 | Time synchronization in units at different locations | US12360167 | 2009-01-27 | US08181057B2 | 2012-05-15 | Edward Nichols; Yuji Hosoda; Thor Johnsen; Vamsi Vytla; Hong Zhang; Luis DePavia |
| To synchronize units of a formation evaluation/drilling operation evaluation system, a time delay associated with a communications link between a master unit and a slave unit of the formation evaluation/drilling operation evaluation system is determined. The master unit has a master time clock that provides universal time. The time delay associated with the communications link is used to enable synchronization of time provided by a slave time clock in the slave unit to the universal time. | ||||||
| 89 | Time synchronization in cluster systems | US12258344 | 2008-10-24 | US08169856B2 | 2012-05-01 | Vikram Rai; Alok Srivastava; Angelo Pruscino; Sameer Joshi |
| Techniques are described herein for synchronizing cluster time. According to one technique, a master node is appointed in a cluster. Other “slave” nodes periodically synchronize their clocks with the master node. To synchronize its clock with the master node, a slave node sends a timestamped message to the master node, which also timestamps the message and sends the message back to the slave node, which then timestamps the message again. Based on the timestamps, the slave node is able to determine the difference between the master node's clock's time and slave node's clock's time, compensating for the message travel time between master node and slave node. Depending on various circumstances, and based on the determined difference, the slave node adjusts its clock so that the time indicated by the slave node's clock at least begins to approach more closely the time indicated by the master node's clock. | ||||||
| 90 | ELECTRONIC DEVICE AND CONTROL METHOD THEREOF, DEVICE AND CONTROL METHOD THEREOF, INFORMATION PROCESSING APPARATUS AND DISPLAY CONTROL METHOD THEREOF, IMAGE FORMING APPARATUS AND OPERATION METHOD THEREOF, AND PROGRAM AND STORAGE MEDIUM | US12695055 | 2010-01-27 | US20100131954A1 | 2010-05-27 | Nao Nagashima |
| In a device having a capability of using time data acquired from an external time information generator, a notification unit notifies a user of time information. The notification unit also notifies the user whether the notified time information is based on time data acquired from the external time information generator. Processing performed by the device is restricted depending on a status associated with time information. Although some types of processing are allowed when the device is in a status in which the time information is based on the time data acquired from the external time information generator, the same type of processing are disabled when the device is in any other status associated with time information. | ||||||
| 91 | Methods to resolve TSF timer ambiguity of IEEE 802.11e schedule element | US10572925 | 2004-09-20 | US07382694B2 | 2008-06-03 | Javier Del Prado Pavon; Amjad Soomro; Sai Shankar Nandagopalan; Stefan Mangold; Zhun Zhong |
| A plurality of methods, computer program product, and apparatus that use a lower 32 bit field of a 64-bit 802.11 TSF timer, so as to encode the reference time instant without the ambiguity as to whether there the reference time is referring to a future time or a past time. According to an aspect of the present invention, the fact that the low order 32 bits of the TSF timer wraps over in about 71 minutes is exploited to remove any ambiguity in the reference times contained in the Schedule Element frame. One method employs an algorithm base on distance between two reference points to determine whether the timer has wrapped around a time period, and another method uses a delay interval or a timeout to determine whether or not the TSF timer is wrapped or unwrapped. Another method includes determining whether an absolute value of X−O is less than, or greater than or equal to maximum value M/2. | ||||||
| 92 | CLOCK DIAGNOSTICS | US11745218 | 2007-05-07 | US20070206444A1 | 2007-09-06 | Ilan SHEMESH |
| Disclosed is a clock for use in a master/slave clock system, including a system and method for semi-automatically performing diagnostic self-tests on the status and operability of a plurality of components of one or more secondary clocks. The invention addresses a multitude of diagnostic and problem detection issues, including “no fault found.” | ||||||
| 93 | Method and apparatus for automatic time correction of a mechanical clock | US11131399 | 2005-05-17 | US20060262650A1 | 2006-11-23 | Robert Hjelmeland |
| A mechanical clock arrangement includes a linkage apparatus rotatingly driving an hour hand and/or a minute hand of a mechanical clock. A sensing device senses a time of day displayed by the mechanical clock. A control device is in communication with both the sensing device and a source of an actual time of day. The control device actuates the linkage apparatus to thereby cause the time of day displayed by the mechanical clock to correspond to the actual time of day. | ||||||
| 94 | Time keeping system with automatic daylight savings time adjustment | US11357787 | 2006-02-17 | US20060158963A1 | 2006-07-20 | Terrence O'Neill; Robin Gollnick; Roland Bihler |
| A time keeping system having a first time module operable to keep a first time, a second time module operable to keep a second time, and a control module operatively coupled to the first time module and to the second time module. The control module adjusts the first time in response to information stored in the control module and adjusts the second time to reduce a time difference between the first time and the second time. | ||||||
| 95 | METHOD OF DETERMINING A TIMING OFFSET BETWEEN A FIRST CLOCK AND A SECOND CLOCK IN A COMMUNICATIONS NETWORK | US10532486 | 2003-10-20 | US20060126437A1 | 2006-06-15 | James Smith |
| A system for determining a timing offset between a first clock and a second clock at respective first and second points in a communications network. A series of request signals is transmitted from the first point in the network to the second point in the network. A series of reply signals is transmitted from the second point in the network to the first point in the network. Each reply signal and a corresponding reply signal having a minimum round trip delay time are identified and a minimum single leg delay time is determined from the minimum round trip delay time. A timing offset between the clock values of the first clock and the second clock at a first instance is estimated, the estimation being based upon the minimum single leg delay time, and a transmission time and a reception time of one of the identified request signal and the corresponding reply signal, as given by the respective clocks at the transmission and reception points of the signal. | ||||||
| 96 | Impulse clock system | US589174 | 1990-09-27 | US5282180A | 1994-01-25 | Michael P. Burke; Stephen A. Bogdan; Bruce D. Emaus |
| A master/secondary clock system of the impulse type consisting of stepper motor driven secondary clocks and a master control unit. At five minutes before a predetermined registration time, for example 6:00, the sensor of each secondary clock movement is activated by a reverse polarity signal from the master control unit and a series of reset pulses are thereafter transmitted to the secondary clocks with each secondary clock stopping as the window in its drive train gear moves into alignment with the emitter and detector of its sensor mechanism. After this five minute pulse reset phase to correct clocks that are five or less minutes fast, the master control unit transmits a rapid pulse train so as to quickly move all of the remaining clocks to the 6:00 position with each clock being halted at the 6:00 position by movement of the window of its gear into alignment with the emitter and detector of the sensor mechanism of that clock. Following the rapid pulse phase to bring all of the clocks into the correct time mode, normal one minute pulsing of the clocks is resumed by the master control unit. | ||||||
| 97 | Quartz watch with analogical time display, comprising a manually controlled time altering device | US211447 | 1980-11-28 | US4382686A | 1983-05-10 | Urs Giger; Norberto Perucchi |
| In the quartz watch according to the invention all the time displaying hands (of the hours, the minutes and, possibly, the seconds) are kinematically permanently connected to each other, thus always displaying time in a very precise manner by their respective positions, whichever manipulations are made by the watch carrier.The addition to the conventional parts of the watch of a detector sensitive to the manually controlled displacements of the hands and of a counting device for finishing off these displacements and for memorizing the time impulses during the manual correction, ensures automatically setting the hands in the exact time indicating positions thus permitting the watch carrier who travels from one time zone into another one to make rapidly the necessary time alterations without prejudice of the previous precision of the time indication. | ||||||
| 98 | Satellite controlled digital clock system | US657918 | 1976-02-13 | US4014166A | 1977-03-29 | Joseph V. Cateora; Dicky D. Davis; D. Wayne Hanson |
| A method and apparatus are provided for maintaining and correcting a time ference in a satellite controlled digital clock system. A time code message including time-of-year information and satellite position information is transmitted in a data stream from a transmitter on earth to a satellite orbiting the earth to be relayed back to receivers located around the world. The data is transmitted at a precise data rate. According to the invention, a local clock oscillator is phase locked with the precise data rate, thereby providing the clock system with time-of-year information by counting the pulses produced by the local oscillator. At the same time, the digital clock system assembles the time code message from the received data stream and compares the message with the time accumulated by counting the pulses produced by the oscillator. After a predetermined number of errors are detected by such comparisons, the clock system resets itself to coincide with the received time code message. If transmission of the time code message is interrupted, the clock continues counting pulses produced by the local oscillator and thereby continues keeping time undisturbed. In a preferred embodiment, the digital clock system is implemented with a firmware programmed micro-computer and the time-of-year and satellite position information is displayed on light emitting diode digital displays. | ||||||
| 99 | Remote clock system | US3498049D | 1968-01-02 | US3498049A | 1970-03-03 | KULICK ROBERT A |
| 100 | Apparatus for remote control of a clock system | US15883761 | 1961-12-12 | US3213602A | 1965-10-26 | VACLAV PFEFFER; BOZENA PFEFFEROVA |
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