子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | NOISE FILTER AND TRANSMISSION DEVICE | US13822789 | 2011-09-16 | US20130169380A1 | 2013-07-04 | Hiroto Tamaki |
| A noise filter can reliably reject an in-phase component included in a differential signal without generating anti-resonance at a target frequency reject and, a transmission device including such a noise filter.Ends of a pair of coils are connected to a pair of transmission lines in the vicinity of the transmitting circuit, and other ends are short-circuited. The coils are magnetically coupled so that the magnetic flux is cancelled regarding the in-phase component that transmits the pair of transmission lines, and the magnetic flux is increased regarding an opposite-phase component that transmits the pair of transmission lines. A series circuit, which includes an inductor and a capacitor connected in series, is connected to the pair of coils and ground. Each value of the pair of coils, the inductor, and the capacitor is set so that a resonance frequency of the in-phase component is a target frequency. | ||||||
| 182 | Phase Compensation In A Differential Pair Of Transmission Lines | US13330368 | 2011-12-19 | US20130159959A1 | 2013-06-20 | William T. Byrne; Robert J. Christopher; Paul D. Kangas; Pravin S. Patel; Daniel M. Ranck |
| Phase compensation in a differential pair of transmission lines, including: identifying, by a phase compensation module, a plurality of direction changes in the differential pair of transmission lines; determining, by the phase compensation module for each direction change in the differential pair of transmission lines, a direction change angle; and determining, by the phase compensation module for each direction change in the differential pair of transmission lines, the geometry of one or more phase correction humps to include in one transmission line of the differential pair of transmission lines in dependence upon the direction change angle. | ||||||
| 183 | NETWORK COMMUNICATION DEVICE AND PRINTED CIRCUIT BOARD WITH TRANSIENT ENERGY PROTECTION THEREOF | US13682041 | 2012-11-20 | US20130128401A1 | 2013-05-23 | Tay-Her Tsaur; Cheng-Cheng Yen |
| A network communication device and printed circuit board are provided with transient energy protection. The network communication device includes a transceiver, a transformer, a connector, a spark gap, and a transient energy trigger circuit. The transformer is coupled between the transceiver and the connector. The spark gap and the transient energy trigger circuit are coupled in parallel, between the transformer and a ground end. Alternatively, the spark gap and the transient energy trigger circuit are coupled in parallel, between any two of differential signal lines of the transformer. The spark gap and the transient energy trigger circuit provide a multi-path structure for conducting away the transient energy. A first transient energy is conducted to the ground end through the transient energy trigger circuit, while a second transient energy is conducted to the ground end through the spark gap. | ||||||
| 184 | Method and apparatus for power reduction in network | US12410879 | 2009-03-25 | US08340111B1 | 2012-12-25 | Denis Krivitski; Youval Nachum |
| Aspects of the disclosure can provide a network switch having reduced power consumption. The network switch can include a plurality of ports that are configured to receive and transmit network traffic. The plurality of ports can be configured in a power-on mode and a power-off mode. Further, at least a first port among the plurality of ports can be configured to remain in the power-on mode and to receive power control instructions. In addition, the network switch can include a power controller. The power controller can change the power modes of selected ports among the plurality of ports in response to the power control instructions received through the first port. | ||||||
| 185 | ADAPTIVE SIGNAL EQUALIZER WITH SEGMENTED COARSE AND FINE CONTROLS | US13183932 | 2011-07-15 | US20120188014A1 | 2012-07-26 | Amit Rane; Nicolas Nodenot; Yongseon Koh; Laurence D. Lewicki; Benjamin Buchanan |
| Circuitry for adaptive signal equalizing with coarse and fine boost controls by providing multiple serially coupled stages of parallel controllable DC and AC signal gains with coarse and fine gain controls provided across all stages. | ||||||
| 186 | Method And System For Modularized Configurable Connector System For Ethernet Applications | US12840683 | 2010-07-21 | US20120014384A1 | 2012-01-19 | Wael William Diab; Michael Johas Teener |
| A first modular Ethernet connector and a coupled corresponding second modular Ethernet connector may communicate data based on Ethernet standards. The Ethernet connectors may be configurable and comprise at least twelve contact positions. Different connector configurations may support widely different data rates. The Ethernet connectors may fit within a handheld device and/or may be sized to fit greater than twenty-four connectors in a 1 RU faceplate of a 19 inch rack. A variable number of conductor and/or ground contact positions may be unpopulated or populated with contacts of various materials. The Ethernet connectors may be configured with a properly fitting latching mechanism, with connector shielding and/or to ground cable shielding. The Ethernet connectors may be sized and fitted for secure coupling. The Ethernet connectors may be coupled to a twisted pair cable. Differential pair conductors are terminated adjacently. The Ethernet connectors may comprise POE, a PHY and/or an antenna. | ||||||
| 187 | Reduced wire count high speed data cable | US12805103 | 2010-07-13 | US20120012388A1 | 2012-01-19 | John Martin Horan; Gerald Donal Murphy; David William Mc Gowan; John Anthony Keane |
| A high speed video cable carries signals according to the High-Definition Multimedia Interface (HDMI) or DisplayPort standards, and includes a raw cable and a boost device. The raw cable is exclusively constructed with either Shielded Twisted Pairs (STP) or coaxial lines which to carry all signals on either shielded wires or their shields. The high speed signals are carried on the shielded wires to the boost device where any common mode noise induced by the signals on the shields is removed. Some auxiliary signals including power are carried on ungrounded shields. This achieves a reduction in the number of wires in the cable leading to a thinner, lighter, and less costly HDMI or DisplayPort Cable. The use of a uniform technology, either STP or coax, also permits simpler and lower cost production and assembly of the cable. | ||||||
| 188 | Low impedance boosted high speed data cable | US12805101 | 2010-07-13 | US20120012387A1 | 2012-01-19 | John Martin Horan; Gerald Donal Murphy; David William Mc Gowan; John Anthony Keane |
| A high speed video cable carries signals according to the High-Definition Multimedia Interface (HDMI) or DisplayPort standards, and includes a raw cable and a boost device. The raw cable includes coaxial lines of a characteristic cable impedance lower than the impedance implied in the standards. The correct impedance is observed at the sending end by series resistors mounted in the first cable connector. The resultant loss of signal is made up with the boost device mounted in the connector at the other end of the cable. Reducing the cable impedance reduces the diameter of the coaxial shields to result a thinner cable, or conversely increases the wire gauge of the conductors to avoid the higher cost and fragility of very thin coax wires, thus permitting simpler and lower cost production and assembly of the cable. Similar advantages are obtained when Shielded Twisted Pairs (STP) are used instead of coaxial lines. | ||||||
| 189 | WIRELESS POWER TRANSMISSION IN ELECTRIC VEHICLES | US13082211 | 2011-04-07 | US20110254377A1 | 2011-10-20 | Hanspeter Wildmer; Nigel P. Cook; Lukas Sieber |
| Exemplary embodiments are directed to bidirectional wireless power transfer using magnetic resonance in a coupling mode region between a charging base (CB) and a battery electric vehicle (BEV). For different configurations, the wireless power transfer can occur from the CB to the BEV and from the BEV to the CB. | ||||||
| 190 | MEDIA DELIVERY SYSTEM | US12888561 | 2010-09-23 | US20110188668A1 | 2011-08-04 | Mark Donaldson; Luc Lussier; Robert Patrick Beyer; Robert David Beck |
| A media delivery system which allows the user to control a media delivery device, such as an audio headset or earphone, from another device which may be remote from the media delivery device. | ||||||
| 191 | TRANSMITTER FOR INTRINSICALLY SAFE DATA-TRANSMISSION DEVICE | US12667202 | 2008-06-12 | US20100283560A1 | 2010-11-11 | Rolf-Dieter SOMMER |
| The invention relates to a mechanism designed for use in areas at risk of explosions, having at least two devices (1, 2) connected to one another by transmission means (3) for exchanging data, at least one of the devices (1, 2) being located in the area as risk of explosion and a decoupling network (4 to 11) being provided on the input side of the devices (1, 2), wherein the invention provides for the decoupling network (4 to 11) to be dimensioned and designed such that the energy that may be stored therein is not able to exceed a predeterminable maximum value. | ||||||
| 192 | Semiconductor device | US11699358 | 2007-01-30 | US07514956B2 | 2009-04-07 | Yasushi Nobutaka; Hiroshi Kamiya; Kunio Ohno |
| A first and a second charging circuit each having a diode and a capacitor are connected to a buffer. In the first charging circuit, an overshoot based on a reflected signal generated by an output signal is stored as an electric charge to the capacitor, and in the second charging circuit, an undershoot based on a reflected signal generated by an input signal is charged as an electric charge to the capacitor, whereby the energy of the overshoot and the like is recovered. These charges are collected in the charging circuit, stored in the capacitor, converted into a power supply voltage of an internal power supply by a stabilization circuit, and are supplied as an internal power supply. The reflected energy of the signal generated during signal transmission at the time of data transfer between semiconductor devices is stored, and the stored energy is used in driving the signals. | ||||||
| 193 | Network transmission unit | US11387537 | 2006-03-22 | US20060214826A1 | 2006-09-28 | Chih-Wen Huang |
| A network transmitter and an associated transmitting method are disclosed. The network transmitter includes a signal converter and a signal driver. The former can convert an input signal into a current signal, and the latter can output a differential transmission signal according to the current signal. The signal driver includes a feedback network which can switch between a first configuration and a second configuration. | ||||||
| 194 | Apparatus and method for performing impedance synthesis in a transmitter | US10953703 | 2004-09-29 | US20060067514A1 | 2006-03-30 | Giorgio Mariani; Krishna Thirunagari |
| A method includes generating an output signal at a transmitter using an input signal. The method also includes providing the output signal for communication over a communication link. The method further includes identifying a return signal by at least partially removing from the output signal at least one of: the communicated signal and base line wander. In addition, the method includes establishing a synthesized impedance to the return signal. | ||||||
| 195 | Signal transmission system | US09699555 | 2000-10-31 | US06570463B1 | 2003-05-27 | Takaaki Nedachi |
| A signal transmission system of the present invention has an output impedance Zs of a driving circuit, a characteristic impedance ZsO of the first transmission line, and a characteristic impedance ZO of a second transmission line are adjusted to satisfy a mathematical relation of: Zs | ||||||
| 196 | Compensating for initial signal interference exhibited by differential transmission lines | US09385588 | 1999-08-27 | US06483879B1 | 2002-11-19 | Frank Gasparik |
| A method of compensating for initial signal interference exhibited by a differential transmission line includes the step of determining whether the differential transmission line has been at a first differential voltage state for at least a first predetermined time period. The method also includes the step of transmitting a first data bit across the differential transmission line by impressing a first differential voltage having a first magnitude upon the differential voltage line in order to drive the differential transmission line from the first differential voltage state to a second differential voltage state if the determining step determines that the differential transmission line has not been at the first differential voltage state for at least the first predetermined time period. Another step of the method includes transmitting the first data bit upon the differential transmission line by impressing upon the differential voltage line a second differential voltage having a second magnitude larger than the first magnitude in order to drive the differential transmission line from the first differential voltage state to a second differential voltage state if the determining step determines that the differential transmission line has been at the first differential voltage state for at least the first predetermined time period. Apparatus for compensating for initial signal interference exhibited by a differential transmission line are also disclosed. | ||||||
| 197 | Digital transmission line tap circuit | US09737370 | 2000-12-15 | US20020075962A1 | 2002-06-20 | Kevin C. Davis |
| A digital transmission line tap circuit is provided for applying a non-intrusive tap on a digital transmission line thus allowing the transmission signal to be monitored or utilized by another piece of transmission equipment. The tap circuit incorporates all the required functions of the tap in one circuit and eliminates large components, such as termination transformers. | ||||||
| 198 | Communication line | US09237682 | 1999-01-27 | US06297445B1 | 2001-10-02 | Naoshi Yamada; Yoshiharu Unami |
| A communication line is disclosed which is able to reduce the difference in the signal propagation time between the wires of the twisted pair. A communication line of the present invention is achieved by cutting and exchanging a pair of wires at the middle point or plural points in the line, so that the positive connecting parts and the negative connecting parts formed by the above cutting and exchanging are equal in length. | ||||||
| 199 | Distribution of radio-frequency signals through low bandwidth infrastructures | US095084 | 1998-06-09 | US06157810A | 2000-12-05 | John B. Georges; David M. Cutrer |
| A system and method for transmitting a radio frequency (RF) signal in a RF bandwidth over a low bandwidth medium, e.g., in-building cabling, which has a transmission bandwidth below the RF bandwidth. The system has a unit for intercepting the RF signal and a global reference oscillator for distributing a global reference tone of high stability to the entire system. Local oscillators are controlled by adjustment signals derived from this global reference tone to deliver RF reference tones of high stability required for mixing the RF signal to obtain an intermediate frequency (IF) signal which is fed through the low bandwidth medium. The global reference tone is preferably delivered through the same low bandwidth medium to desired locations, such as remote coverage sites in a network for cellular communications, cordless telephony, local RF communications, interactive multi-media video, high bit-rate local communications. A modified RF signal is generated at the desired location by mixing the IF signal and a local reference signal controlled by the global reference signal. | ||||||
| 200 | Modem command and data interface | US893193 | 1997-07-15 | US6038222A | 2000-03-14 | Bruce P. Osler; Leo A. Goyette |
| An interface between a computer and a telephone line includes an interface device controlled by a set of commands. The commands are divided into a plurality of categories, each of which corresponds to a class of operations performed by the interface device, with each command being included within a single category. The interface device reads a command selected from a category of commands and performs an operation from the class operations that corresponds the selected category of commands. | ||||||
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