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Telecommunications > Transmitter And Receiver At Same Station (e.g., Transceiver) > With Transmitter-receiver Switching Or Interaction Prevention With Transmitter-receiver Switching Or Interaction PreventionWith Transmitter-receiver Switching Or Interaction Prevention patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.03/01/07 - 20070049214 - Transmit antenna switching apparatus and method in mimo system A transmit antenna switching apparatus and method in a MIMO system are provided. The transmit antenna switching method includes determining modulation orders of users by using reception strengths of user signals with respect to each antenna; summing the determined modulation orders for each antenna; and determining an antenna having the ... 03/01/07 - 20070049213 - Tunable dual-antenna system for multiple frequency band operation A tunable dual-antenna system for multiple frequency band operation is disclosed, which allows a device to switch between multiple frequencies and/or multiple modes, such as CDMA and GSM. The system may comprise a tunable transmit antenna and a tunable receive antenna. One configuration may comprise multiple transmit antennas and multiple ... 02/01/07 - 20070026817 - Antenna duplexer An antenna duplexer of the present invention includes a first transmission/reception circuit for transmitting/receiving a GSM signal, and a second transmission/reception circuit for transmitting/receiving DCS and W-CDMA signals, which are connected in parallel via a diplexer. A third trap circuit including an inductor and a capacitor for forming a series ... 01/04/07 - 20070004345 - Antenna switching system An antenna switching system includes: an antenna unit having an antenna and a switching circuit; a feeder line connected to the switching circuit; and a receiving unit connected to the feeder line. The switching circuit of the antenna unit is switched by a control signal supplied from a control signal ... 01/04/07 - 20070004344 - Wireless device and system for discriminating different operating environments Wireless communication systems (100, 800) comprise mobile units (118, 802) provided with a directional coupler (206) and circuit (220) for measuring the complex reflectance (phase and magnitude) of antenna (202) of the mobile units (118, 802). The system (100, 800) has, either in the mobile unit (118, 802) or elsewhere, ... 12/28/06 - 20060292996 - Integrated wireless transceiver An integrated wireless transceiver is described. The integrated wireless transceiver may include a radio, a frequency converter coupled to the radio, a switch coupled to the frequency converter, and at least one antenna coupled to the frequency converter. The radio may be configured to convert a first signal from a ... 12/21/06 - 20060286942 - High frequency module A high frequency module comprises: a switch circuit connected to first and second antenna terminals; a first diplexer connected to first and second reception signal terminals and the switch circuit; a second diplexer connected to first and second transmission signal terminals and the switch circuit; and a layered substrate for ... 12/21/06 - 20060286941 - Selection of antenna patterns A wireless transceiver is disclosed. The wireless transceiver includes an antenna having an adjustable setting to perturb an antenna pattern of the antenna. A receive/transmit signal quality is determined for all available antenna patterns, and the adjustable setting is selected to provides the best signal quality. For an embodiment, the ... 12/21/06 - 20060286940 - Array antenna transmission/receiver An array antenna transmission and reception apparatus that is simply configured to make it possible to reduce the size and weight and that separates and extracts respective phase calibration signals from radio signals to be transmitted and radio signals to be received passing through the same path. A directivity coupler ... 12/14/06 - 20060281418 - Device and methods for high isolation and interference suppression switch-filter Systems and methods are provided for a stacked die configuration of a high isolation switch and a rejection filter where transmit and receive signals are desired to have a high out-of-band rejection and a low loss band-pass region. In some aspects of the invention the high isolation switch is a ... 11/23/06 - 20060264182 - Wireless communications device A wireless communications device comprises a common amplifier for amplifying a plurality of high-frequency signals of different communications systems, a plurality of signal channels provided subsequent to the common amplifier, each of the plurality of high-frequency signals being passed through the respective signal channels, and a switch circuit provided between ... 11/09/06 - 20060252383 - System and method for receiving and transmitting information in a multipath environment A system and a method for receiving and transmitting information in a multipath environment provide a wireless communications system. The wireless communications system provides a switching module that is adapted to couple a receiver module to either a first antenna or a second antenna as a function of reception characteristics ... 11/09/06 - 20060252382 - Real-time programming of electronic radio system resource assets A method to efficiently implement a reconfigurable electronic radio system (400) including resource assets (402-408, 410-416, 418, 420-426, 428) and a processor (428). The processor (428) generates RF control and switching control signals during each mission segment of an aircraft to create radio function threads through the resource assets (402-408, ... 11/09/06 - 20060252381 - Radio communication system A radio communications system includes radio devices, and antenna and an array antenna. The radio devices communicate a prescribed signal via the antenna and the array antenna in a system of transmission and reception at a single frequency, such as time division duplex, as the array antenna changes the in ... 11/02/06 - 20060246850 - Branching filter and multiplex transceiver Disclosed herein are branching filter suitable for connection with a transmission/reception integrated radio device, and a multiplex transceiver which utilizes the branching filter. A band pass filter unit separates an outgoing wave from an incoming wave. An antenna duplexer transmits an outgoing wave from the band pass filter unit to ... 10/26/06 - 20060240785 - Transceiver apparatus for use in a multi-frequency communication system, base station of a multi-frequency communication system, method for use of the transceiver apparatus, method of transceiving a multi-frequency signal in a multi-frequency communicatio In a transceiver apparatus for use in a multi-frequency communication system a multi-frequency antenna terminal operation allows antenna transmission and reception-modes to be combined. A frequency conversion circuitry has a transmission path and a reception path, wherein each of these paths communicatively connects a signal processor and an antennaswitch. The ... 10/19/06 - 20060234650 - Low voltage differential signaling transceiver A low voltage differential signaling transceiver includes a transmitter and a receiver, the transmitter having a first terminal in signal communication with a transmission line, a source resistance in signal communication with the first terminal, a switch in signal communication with the source resistance and in switchable signal communication from ... 10/12/06 - 20060229030 - Tunable duplexer with common node notch filter A mobile station with a tunable duplexer is disclosed. The mobile station includes a processor and memory in electronic communication with the processor. The mobile station includes a receive path that has a receive band reject filter in electronic communication with an antenna at a common node. The receive path ... 10/05/06 - 20060223457 - System and method for dc offset correction in transmit baseband A radio frequency (RF) transceiver is provided. The RF transceiver comprises a transmit path comprising an output coupled to an RF antenna, a feedback path comprising an input coupled to the output of the transmit path, and a DC offset calibration module comprising a first input coupled to an output ... 10/05/06 - 20060223456 - Techniques for partitioning radios in wireless communication systems A method and apparatus is provided for partitioning a radio using a multi-chip module to group some or all of the components of the radio in a single package. In one example, a radio uses a multi-chip module, including a chip carrier. Various components of the radio reside in integrated ... 09/28/06 - 20060217079 - Low voltage differential signaling transceiver A low voltage differential signaling transceiver includes a transmitter and a receiver, the transmitter having a first terminal in signal communication with a transmission line, a source resistance in signal communication with the first terminal, a switch in signal communication with the source resistance and in switchable signal communication from ... 09/28/06 - 20060217078 - Enhancement mode transceiver and switched gain amplifier integrated circuit Methods and apparatus are provided for RF switches (504, 612) integrated in a monolithic RF transceiver IC (500) and switched gain amplifier (600). Multi-gate n-channel enhancement mode FETs (50, 112, 114, Q1-3, Q4-6) are used with single gate FETs (150), resistors (Rb, Rg, Re, R1-R17) and capacitors (C1-C3) formed by ... 09/21/06 - 20060211382 - Switch circuit and composite high frequency elements A switch circuit for switching the connection of the receiving or transmitting circuits of two communication systems to an antenna circuit, which comprises first and second switch means having two switching elements, the first switch means comprising a first inductance element between a port connected to the antenna circuit and ... 09/14/06 - 20060205361 - Impedance transformation in a duplexer using a transmission line A duplexer having a filter and a transmission line that transforms an impedance of the filter to an impedance of an antenna. ... 08/31/06 - 20060194550 - Front-end circuit for wireless transmission systems A functional block of a front-end circuit for a communication device, which is employed for multi-band and/or multi-mode operation, is proposed. By positioning, according to this invention, a pin diode switch in one of the parallel signal paths instead of positioning it on the input side before separating the signal ... 08/24/06 - 20060189277 - Transceiver device with switching arrangement of improved linearity The present invention relates to a transceiver device having a switching arrangement and to a method of improving such a switching arrangement, wherein an input impedance of a duplexer means, as seen by a switching means (10) at a predetermined frequency, is transformed to a predetermined maximum or a minimum ... 08/17/06 - 20060183434 - Transceiver front-end A transceiver front-end provides an interface between a transmission medium and transmitter, and between a transmission medium and receiver. The transceiver front-end includes a hybrid circuit, a high-pass filter, and a gain stage, that permits the reduction or the complete elimination of buffer amplifiers. Buffer amplifiers can be eliminated because ... 08/17/06 - 20060183433 - Wireless communication apparatus The present invention provides a wireless communication apparatus that can maintain good and stable antenna characteristics, regardless of the change in the profile of the cabinet and that of the antenna element. The wireless communication apparatus includes a profile changeable cabinet adapted to changes its profile at least from a ... 07/13/06 - 20060154618 - Radio base station apparatus, radio terminal apparatus, mobile communication system, and reception operation control program In response to a connection request from a terminal, a base station provides a signal indicating a reception operation adapted to a transmission operation of the base station to the terminal. Based on the indicating signal, the terminal selects and performs the optimum reception operation. The terminal also provides its ... 07/13/06 - 20060154617 - electrically tuned resonance circuit using piezo and magnetostrictive materials An impedance tuning system, especially for a cellular telephone system. The system can be used to match the impedance of an antenna element with that of an output stage of a transmitter driving the antenna element. The system includes a piezo capacitor in parallel with the magnetostrictive inductor to form ... 07/06/06 - 20060148422 - Portable information apparatus having communications tools, a control system for controlling such portable information apparatus, and an apparatus having such control system A portable information apparatus 20 having communications tools is provided with a switch 22a for instructing enablement/disenablement of transmission functions of the wireless transmission/reception section 21 of the portable information apparatus 20. The portable information apparatus 20, upon receipt of a transmission prohibition signal from an prohibition signal transmitter 31 ... 06/29/06 - 20060141944 - Antenna sharing device and wireless communication terminal using the same A compact, inexpensive antenna sharing device meeting requirements in terms of transmitter distortion characteristic and ESD characteristic is provided which separates and combines signals transmitted and received in first to third signal bands and which thereby enables an antenna terminal to be shared as a common terminal. It includes a ... 06/29/06 - 20060141943 - Transmit and receive antenna switch Antenna switches (1,10) in dual-band or multi-band mobile phones are according to a basic idea provided with a serial semiconductor switches (11,21,12,22) per transmitting branch (2,3) and with a further semiconductor switch (13,23) coupled in parallel to a receiving branch (4,5,6), to obtain isolation between branches (2-6) in a simple ... 06/22/06 - 20060135084 - Rf front-end matching circuits for a transceiver module with t/r switch integrated in a transceiver chip Radio frequency front-end matching circuits suitable for a transceiver module with TR switch integrated in a transceiver chip. The radio frequency front-end transceiver module comprises a radio frequency (RF) front-end device, a transmit/receive (TR) switch, a transmitter, a receiver and an internal matching circuit, in which the TR switch, the ... 06/22/06 - 20060135083 - Interoperability between receivers and transmitters in a mobile station Techniques are disclosed for improving the interoperability of transmitters and receivers in a mobile station. Certain exemplary techniques involve performing filtering in a transmitter in response to a notification that a receiver is able to receive a reception frequency band. Other exemplary techniques involve changing one or more inputs of ... 06/15/06 - 20060128322 - Transceiver apparatus and module It is possible to facilitate design and reduce a size and power dissipation of a radio frequency integrated circuit RFIC for full duplex system, by forming a duplexer for passing only a desired band, a low noise amplifier circuit LNA for amplifying an output signal of the duplexer, and a ... 04/27/06 - 20060089107 - Transmit-receive switch architecture providing pre-transmit isolation A transmit-receive switch architecture comprises a first switch coupled to transmit circuitry and to an antenna, a second switch coupled to receive circuitry and to ground, wherein the second switch is configured to couple the receive circuitry to ground during a time period in which a power source associated with ... 04/20/06 - 20060084392 - Transceiver system and method of using same A chip comprises and operational section and an input/output section. The operational section includes a controller. The input/output (I/O) section is coupled to the operational section. The I/O section comprises a transformer and a switching device. The transformer includes a primary side connected to first and second I/O ports and ... 03/30/06 - 20060068721 - Rapidly adjustable local oscillation module and applications thereof A rapidly adjustable local oscillation (LO) module for use in a radio transmitter or a radio receiver includes an oscillation generating module and a high frequency switching module. The oscillation generating module is operably coupled to generate a plurality of local oscillations. The high frequency switching module is operably coupled ... 03/23/06 - 20060063494 - Remote front-end for a multi-antenna station A multi-antenna station has multiple remote front-ends coupled to multiple antennas. Each remote front-end includes a power amplifier (PA), a low noise amplifier (LNA), and first and second coupling units. On the transmit path, a first RF signal is received via a first port, routed by the first coupling unit ... 03/16/06 - 20060057971 - Wireless communication device and radio communication system using the same A wireless communication apparatus has a current system and a standby system independent of each other. An interface circuit la of a radio 10a outputs two signals input from an MUX device 101 as a signal of a current system and a signal of a standby system to a V ... 02/16/06 - 20060035601 - Tdd transceiver for utilizing a transmission mode and a reception mode simultaneously, and a self-diagnostic method therefor A TDD transceiver for utilizing a Tx mode and an Rx mode simultaneously and a self-diagnostic method therefor. In the TDD transceiver, a transmitter transmits a Tx signal from a Tx path to an antenna. A receiver for processes an Rx signal to a baseband signal. A detector couples the ... 02/16/06 - 20060035600 - Rf front-end apparatus in a tdd wireless communication system An RF front-end apparatus in a TDD wireless communication system is provided. In the RF front-end apparatus, a detector is provided at a predetermined position in a signal path, and detects a signal propagating in the signal path. A circulator provides a signal received from a power amplifier to an ... 02/09/06 - 20060030278 - Information processing apparatus with antenna switching function, communication apparatus, antenna switching control unit computer-readable recording medium recording antenna switching control program In an information processing apparatus such as a notebook type personal computer having radio communication functions, for communication units to simultaneously carry out transmission/reception independently of each other without increasing the number of antennas, and for sufficiently utilizing a diversity function in the case of only a portion of the ... 01/26/06 - 20060019612 - Radio communication device that meets a plurality of frequency bands The device of the invention includes an antenna (1) capable of transmitting and receiving radio waves of first and second frequency bands, a wave separator (2), antenna sharing devices (3A, 3B) respectively provided so as to correspond to the frequency bands, transmitting circuits (4A, 4B), transmitting PLL synthesizers (5A, 5B), ... 12/22/05 - 20050282503 - Combined matching and filter circuit A combined matching and harmonic rejection circuit with increased harmonic rejection provided by a split resonance for one or more of the capacitive or inductive elements of the circuit. At a fundamental frequency, the circuit comprises an inductive series arm with capacitive shunt arms. The capacitance of a shunt arm ... 12/15/05 - 20050277387 - Antenna device An object of the present invention is to provide an antenna device which corresponds to a plurality of radio communications systems and frequency bands, which can simultaneously carry out a reception and a transmission of different radio communications systems, and which is capable of using antenna diversity by a simple ... 11/17/05 - 20050255812 - Rf front-end apparatus in a tdd wireless communication system A transmitting apparatus in a TDD wireless communication system is provided. In the transmitting apparatus, a circulator transmits a signal received from a power amplifier to an antenna feed line and transmits a signal received from the antenna feed line to a quarter-wave transmission line. The quarter-wave transmission line is ... 11/17/05 - 20050255811 - Method for a session initiation protocol push-to-talk terminal to indicate answer operating mode to an internet protocol push-to-talk network server A push-to-talk communication device including an operating answer mode indicates that operating answer mode to a Session Initiation Protocol/Internet Protocol based push-to-talk network server. The method includes employing as the operating answer mode of the push-to-talk communication device one of an automatic-answer mode, an always-automatic-answer mode and a manual-answer mode. ... 11/17/05 - 20050255810 - Apparatus for transmit and receive switching in a time-division duplexing wireless network A transmit-receive (T/R) switch for coupling a TDD transceiver to an antenna. The T/R switch comprises 1) a first circulator having a first port for receiving a transmit signal from the transceiver during transmit mode, a second port for sending the transmit signal to the antenna during transmit mode and ... 11/03/05 - 20050245202 - Versatile antenna switch architecture A RF front-end having two antenna switches operatively connected to two separate antennas. The antenna switches can be used to route various transmit and receive paths to the antennas. In particular, one of the antenna switches has three switch position for use in selectively routing the 2 GHz receive paths, ... 11/03/05 - 20050245201 - Front-end topology for multiband multimode communication engines The combination of filters and switches is used to solve the non-linearity problems in GSM/W-CDMA transceiver front-end wherein one common antenna is used for both the GSM mode and the W-CDMA mode. In particular, separate Rx/Tx paths and switches in the Rx paths are used to provide cross-band isolation between ... 10/27/05 - 20050239415 - High-frequency switch circuit and high-frequency transmitting/receiving apparatus A high-frequency switch circuit includes a first terminal which receives a transmission signal, a first FET which makes a path of the transmission signal conductive or cut off, a second terminal which receives a control signal that is inactive in a transmitting mode and is active in a receiving mode, ... 10/20/05 - 20050233706 - Switching circuit A switching circuit disclosed herein comprises: a transmission port; a first internal connection switching circuit which is connected between the transmission port and an antenna port and includes a depletion mode first transistor and a depletion mode second transistor, the first internal connection switching circuit constituting a parallel resonant circuit ... 10/06/05 - 20050221769 - High-frequency switch circuit A high-frequency switch circuit is provided for switching a connection between a common transmission circuit and antenna side circuit in a plurality of transmitting and receiving systems. The high-frequency switch includes a connection between the antenna side circuit and a reception circuit in one of the plurality of transmitting and ... 10/06/05 - 20050221768 - High-frequency switch circuit A high-frequency switch circuit is provided for switching a connection between a common transmission circuit and an antenna side circuit in a plurality of transmitting and receiving systems. The high-frequency switch includes a connection between the antenna side circuit and a reception circuit in one of the plurality of transmitting ... 10/06/05 - 20050221767 - High frequency module and high frequency circuit for mobile communications device A high frequency module comprises a high frequency switch and a coupler. The high frequency switch selectively allows a transmission signal terminal or a reception signal terminal to be connected to an antenna terminal. The coupler is provided between the transmission signal terminal and the high frequency switch and detects ... 09/29/05 - 20050215205 - Rf diversity antenna coupling structure AN RF diversity antenna coupling structure includes a differential low noise amplifier, a differential power amplifier, a first switch coupled to a first antenna, a second switch coupled to a second antenna, a first transformer, a second transformer, a transformer balun. The first transformer includes a primary winding and a ... 09/29/05 - 20050215204 - Adaptive interference filtering Systems and techniques for adaptive interference filtering in a communications device are disclosed. The communications device may include a transmitter, a receiver, a duplexer coupled to the transmitter and the receiver, and an adaptive filter disposed between the duplexer and the receiver. A processor may be configured to monitor cross ... 09/22/05 - 20050208902 - Signal transmission circuit, signal output circuit and termination method of signal transmission circuit This invention provides a signal transmission circuit, a signal output circuit, and a termination method of a signal transmission circuit capable of preventing the re-reflection of the signal at a transmitting node of a transmission path even when an impedance of a signal output circuit does not match a characteristic ... 09/22/05 - 20050208901 - Tunable transceiver front end A transceiver front end includes a transmit/receive (T/R) switch, a first balun, a second balun, a low noise amplifier, a power amplifier, and compensation circuitry. The T/R switch is operably coupled to an antenna for receiving inbound radio frequency (RF) signals and for transmitting outbound RF signals. The first balun ... 09/22/05 - 20050208900 - Co-existing bluetoothtm and wireless local area networks Two antennas provide signals and a diversity switch selects the antenna providing the highest signal strength for a WLAN module. A Bluetooth™ module is routed or switched to receive a signal from the unused antenna or the antenna not in use by WLAN module. ... 08/25/05 - 20050186919 - Switch apparatus, switchable power amplification apparatus, and mobile communication terminal apparatus using the same A switch apparatus of the invention comprises a first input terminal, a second input terminal to which a second input signal having a level lower than a level of the first input signal is supplied, a first switch block for outputting the first input signal supplied from the first input ... 08/11/05 - 20050176382 - Mobile communication apparatus A purpose of the present invention is to improve a reception sensitivity when simultaneous transmitting/receiving operations are not carried out in a mobile communication apparatus capable of performing the simultaneous transmitting/receiving operations. The mobile communication apparatus, according to the present invention, is comprised of an antenna selector (13) for switching ... 08/11/05 - 20050176381 - Wireless communication rf circuit and communication apparatus including the same A wireless communication RF circuit includes a transmitting-and-receiving antenna, a modulator circuit, an SPST switching circuit, and a demodulator circuit, which are arranged in a sequence. Upon signal reception, the SPST switching circuit is switched ON, and the demodulator circuit extracts a signal wave from a signal received by the ... 08/04/05 - 20050170789 - E-band radio transceiver architecture and chip set A GaAs E-Band transceiver front-end chip set is provided comprising three MMIC devices. The first device includes a circuit for receiving data at baseband, mixing the data with an LO signal having an E-Band frequency, and transmitting a resultant data stream at an upconverted E-Band frequency; a circuit for receiving ... 07/21/05 - 20050159113 - Switch apparatus and mobile communications terminal apparatus A small-sized switch apparatus for switching between signal paths of at least first, second and third frequency bands is capable of handling high-powered high-frequency signals with a relatively low control voltage and is useful in a mobile terminal apparatus. A first signal terminal of a diplexer is connected to an ... 07/21/05 - 20050159112 - Switch apparatus and mobile communications terminal apparatus A small-sized switch apparatus for switching between signal paths of at least first, second and third frequency bands is capable of handling high-powered high-frequency signals with a relatively low control voltage and is useful in a mobile terminal apparatus. A first signal terminal of a diplexer is connected to an ... 07/14/05 - 20050153664 - Adaptive radio transceiver with an antenna matching circuit An exemplary embodiment of the present invention described and shown in the specification and drawings is a transceiver with a receiver, a transmitter, a local oscillator (LO) generator, a controller, and a self-testing unit. All of these components can be packaged for integration into a single IC including components such ... 07/14/05 - 20050153663 - Joint channel equalizer interference canceller advanced receiver At least one communication is transmitted from a plurality of transmitting antennas. A signal is received. For each transmitting antenna, the received signal is equalized with respect to a channel experience by the communication between the transmitting antenna and the signal receiving, producing symbols. A contribution of that transmitting antenna ... 07/07/05 - 20050148305 - Wireless transceiver apparatus The present invention is a wireless transceiver apparatus, comprised of a transceiver unit, a communication unit, a radio-receiving unit, and a switch unit. The switch unit is connected to the communication unit. The transceiver unit includes a skin-touch microphone, which is able to transform human voice into a first signal. ... 06/30/05 - 20050143019 - Mobile communication device An object of the invention is, in a mobile communication apparatus allowing to perform a transmission/reception simultaneous operation, and in a case that transmission/reception is performed by packet communication or the like, to improve reception sensitivity at a timing when only a reception processing is performed and to improve transmission ... 06/23/05 - 20050136847 - Communication semiconductor integrated circuit device and electrical apparatus A communication semiconductor integrated circuit (high frequency IC) that has a function of differentially-singly converts and outputs a transmitted signal suppressing deterioration of a harmonic suppression characteristic and enables miniaturization and an electronic component (high frequency module) that mounts the communication semiconductor integrated circuit are provided. In the communication semiconductor ... 06/23/05 - 20050136846 - Rf transceiver Disclosed is an RF transceiver including a receiver chain performing a dual conversion with respect to a received RF signal, thereby generating an IF signal; a chain of transceiver performing a dual conversion with respect to an IF signal to be transmitted, thereby generating an RF signal; and an IF ... 06/16/05 - 20050130603 - Low noise transceiver The present invention relates generally to a low noise transceiver. The transceiver establishes substantially identical common mode voltages at first and second nodes. A receiver is coupled to the first node for receiving signals. The first and second nodes are connected during a first operating mode to provide a low ... 06/16/05 - 20050130602 - [wireless transmitting/receiving circulator circuit] A wireless transmitting/receiving circulator circuit is disclosed. The circuit comprises a first band-pass filter, a filter and a second band-pass filter. The first band-pass filter is coupled to the receiving end of a wireless device and an antenna for receiving signals from the antenna and filtering the signals to produce ... 06/09/05 - 20050124300 - Low loss diversity antenna t/r switch A low loss transmit/receive switch includes a 1st antenna capacitive coupling circuit, a 2nd antenna capacitive coupling circuit, an antenna selection circuit, a 1st inductive coupling circuit, and a 2nd inductive coupling circuit. The 1st antenna capacitive coupling circuit is operably coupled to a 1st antenna. The 2nd antenna capacitive ... 06/02/05 - 20050118962 - Receiver reuse switching A leaky transmit/receive switch may be used in a transceiver to permit the receiver to receive a portion of transmitted signal energy. ... ### FreshPatents.com Support |