СПИСОК патентов США - подгруппа МПК16 H04B1/52


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№ п/п Номер патента Название патента

2017

19571133Duplexer
29559744System and method for TDD/TMA with hybrid bypass switch of receiving amplifier
39559730Multiplexer

2016

49526101Radio frequency transmit-receive apparatus, terminal, and method
59484973Voltage equalization for stacked FETs in RF switches
69478854Devices and methods for reducing interference between closely collocated antennas
79467198High-frequency module and communication device
89467195Concurrent dual-band WLAN device using MCM
99467191Antenna interface circuits with quadplexers
109461697In-service monitoring and cancellation of passive intermodulation interferences
119461643High freuency semiconductor switch and wireless device
129419674Shared filter for transmit and receive paths
139419320Nonreciprocal circuit element and transceiver device
149413473System, method and computer storage medium for calibrating RF transceiver
159413416Transmit and receive RF multiplexer
169344122Adaptive filtering for canceling distortion in radio frequency signals
179319094Wireless transceiver with circulator and active cancellation and methods for use therewith
189319092High-frequency module
199300350Transceiver device adapted to operate in a first communication mode and a second communication mode
209294178Method and apparatus for transceiving for beam forming in wireless communication system
219287850Communication module comprised of multiple interdigital transducer duplexers for wireless communication unit
229287847Module
239246548Electromagnetic coupling of electronic devices using resonant terminations that shift resonant frequencies
249246536Duplexer with active temperature compensation
259246524Outdoor coupler unit utilizing circulator network
269240622Circuit arrangement including hybrids and duplexers between antenna, transmission and reception ports
279231712Methods and systems for noise and interference cancellation

2015

289219297Amplifier module with multiple 90 degree hybrids
299214918Power distributing duplexer system
309210710Transmission of channel state information in a wireless communication system
319209800High freuency semiconductor switch and wireless device
329160307Duplexer module
339154289Electrical balance duplexer for co-existence and concurrent operation of more than one wireless transceivers
349154166Front-end module network
359153875High-frequency module
369130534Impedance matching circuit capable of broadband operation
379083313Substrate, duplexer and substrate module
389070963Duplexer
399054774Communication system and method for transmitting and receiving signals
409030976Bi-directional digital interface for video and audio (DIVA)
419001712Transmit signal cancelation apparatus and methods

2014

428903000Transmission circuit, reception circuit, transmission method, reception method, communication system and communication method therefor

2013

438503337Physical uplink control signal transmitting method for time division duplex system

2012

448116240Bi-directional bridge circuit having high common mode rejection and high input sensitivity

2011

458022787Duplexer, module including a duplexer and communication apparatus

2010

467804793SAS diplex communications
477746811Time shared bi-directional serial signaling system
487746193Miniature 180 degree hybrid coupler
497697420System and method for leveraging network topology for enhanced security
507696841Power amplifier utilizing quadrature hybrid for power dividing, combining and impedance matching

2009

517599316Bi-directional bridge circuit having high common mode rejection and high input sensitivity

2008

527389090Diplexer circuit for wireless communication devices

2006

537103013Bidirectional bridge circuit having high common mode rejection and high input sensitivity
547020277DSL line interface having low-pass filter characteristic with reduced external components

2005

556961596Modular RF antenna and filter system for dual radio WLAN access points
566959206Dual-duplexed, tower-top front-end for a radio transceiver system
576950634Transceiver circuit arrangement and method
586950410Frequency multiplexer
596928298Mobile communication device and high-frequency composite unit used in the same
606928276Signal reception circuit and communication device having the same
616922402Mutual frequency locking across a link
626917823Cellular telephone
636915112Active cancellation tuning to reduce a wireless coupled transmit signal
646912377Leak power ratio detection circuit, mobile communication terminal, and control circuit for mobile communication terminal
656907093Method and apparatus for relayed communication using band-pass signals for self-interference cancellation
666892056Subscriber station with duplex antenna amplifier
676889035Cable-less interconnect architecture for effecting blind coupling of diplexer to radio transceiver
686885260Filter using film bulk acoustic resonator and transmission/reception switch
696870442High-frequency device
706861924Duplexer with improved transmission/receiving band separation
716850748RF front end with reduced carrier leakage
726847269High-frequency module and wireless communication device
736842629Arrangement in a radio system

2004

746829314Adapter for near end crosstalk and echo canceller for bi-directional digital communications
756823178High-speed point-to-point modem-less microwave radio frequency link using direct frequency modulation
766819943Spatial spectral efficiency for wireless rings and network of links in millimeter wave (MMW) communication systems
776810239Automated transmitter combiner monitoring system and method of using same
786795690Full-duplex transceiver with distributed duplexing function
796785324Transceiver including reactive termination for enhanced cross-modulation performance and related methods
806766149Mobile radio terminal and surface acoustic wave antenna duplexer
816756864Branching filter and communication apparatus
826748197Single antenna for receipt of signals from multiple communications systems
836745018Active cancellation of a wireless coupled transmit signal
846738147Autostigmatic far field simulator
856731101Modulation semiconductor integrated circuit device and testing method for oscillation circuit
866724278Duplex filtering
876721544Duplexer structure for coupling a transmitter and a receiver to a common antenna
886721543Wireless terminal device
896717980Reduction of transmitter induced cross modulation in a receiver
906714098SAW antenna duplexer having a phase shifter with less than 50 ohm characteristic impedance
916704349Method and apparatus for canceling a transmit signal spectrum in a receiver bandwidth
926697603Digital repeater
936693499Compact lumped element ring balun layout
946683679Optical flow monitor

2003

956600385Front end module for mobile communications apparatus
966591086Enhanced time division duplexing (TDD) transceiver circuitry
976590475Filter, antenna duplexer, and communication apparatus incorporating the same
986567649Method and apparatus for transmitter noise cancellation in an RF communications system
996567648System combining radio frequency transmitter and receiver using circulator and method for canceling transmission signal thereof
1006567647Low noise radio frequency transceivers including circulators
1016559759Duplex communication apparatus for motor vehicle
1026556814Memory-based amplifier load adjust system
1036553210Single antenna for receipt of signals from multiple communications systems
1046539235Channel leakage power monitor apparatus and method
1056539204Analog active cancellation of a wireless coupled transmit signal
1066535748Wireless communication transceiver having a dual mode of operation
1076526264Wideband multi-protocol wireless radio transceiver system
1086525624Band-switchable surface acoustic wave antenna duplexer and mobile radio terminal
1096516183Method and apparatus for disturbance compensation of a direct conversion receiver in a full duplex transceiver
1106512428Device for the simultaneous reception/transmission of signals comprising a low-noise amplifier
1116510308RECEPTION OF WEAK RADIO FREQUENCY SIGNAL IN THE PRESENCE OF A STRONG INTERNAL RADIO FREQUENCY INTERFERER--DEVICE AND METHOD FOR COMPENSATION OF AN INTERNAL INTERFERING SIGNAL BY A SUPERPOSITION METHOD
1126507728Radio transceiver and a method of preventing transmission spurious response
1136507651Hybrid amplifier

2002

1146473596Close proximity transmitter interference limiting
1156472952Antenna duplexer circuit with a phase shifter on the receive side
1166470173Filter unit comprising a wideband bandpass filter and one band-elimination filter
1176445262Composite high frequency component and mobile communication apparatus incorporating the same
1186434122Filtering method to allow FDD and TDD operation in PCS transreceivers
1196426682Transceiver unit for a first and second transmitting/receiving frequency
1206408193Cellular telephone
1216393262Difference frequency impedance transformation circuits and methods for providing same in power amplifier systems
1226393259Amplifier circuit and transceiver
1236380823Antenna duplexer with receiving, transmitting, and antenna terminal groups separated planarly
1246373350Branching filter with saw-resonator transmitting and receiving filters in separate packages and receiving-branch lines in both packages
1256373349Reconfigurable diplexer for communications applications
1266366564Diplexer duplexer and two-channel mobile communications equipment
1276356536Protective and decoupling shunt switch at LNA input for TDMA/TDD transceivers
1286351628Antenna switching circuit

2001

1296329949Transceiver stacked assembly
1306313713Matched pair circulator antenna isolation circuit
1316311045Apparatus for signal isolation in a radio transmitter-receiver
1326288620Antenna-duplexer and communication apparatus
1336256511Dual-mode radio architecture
1346256480Broadcast coupler
1356249670Signal combining device and method for radio communication
1366249195Dielectric filter, dielectric duplexer, and transceiver having circular and polygonal electrode openings
1376243564Dielectric filter having coupling windows between resonators, and transceiver using the dielectric filter
1386212367Mobile telephone apparatus with tunable filter tuned to the transmit band
1396212172Filtering method to allow FDD and TDD operation in PCS transreceivers
1406184759Dielectric filter having inductive coupling windows between resonators, and transceiver using the dielectric filter
1416178312Mechanism for automatically tuning transceiver frequency synthesizer to frequency of transmit/receiver filter
1426177850Two frequency filter comprising an inductance device, a resonator, and a switching device
1436169912RF front-end with signal cancellation using receiver signal to eliminate duplexer for a cordless phone

2000

1446141539Isolation improvement circuit for a dual-polarization antenna
1456128474Test circuit of base station for mobile radio communication system
1466122489Dielectric filter having capacitive coupling windows between resonators, and transceiver using the dielectric filter
1476122488Method and apparatus for increasing an output impedance of a transmit amplifier during receive mode of a two-way communication unit
1486115592Filter device and dual-band radio system in which the filter device is used
1496115585Antenna switching circuits for radio telephones
1506112059Off-channel leakage power monitor apparatus and method
1516108313Transmitter/receiver for use in multichannel time division duplexing system providing isolation between transmission channels and reception channels
1526087998Duplex antenna circuit assembly selectively operational in a transmit or a receive mode
1536075975Dielectric filter having pairs of capacitive coupling windows between resonators and transceiver using the dielectric filter
1546067448System and method for isolating radio frequency signals
1556060960Duplexer comprising a SAW filter disposed on a multi-layer substrate
1566041219Integrated orthogonal mode transducer/filter design for microwave frequency-domain
1576026281Dielectric filter having coupling windows between resonators, and transceiver using the dielectric filter
1586023609Device for separating transmitting waves and receiving waves and a radio communication equipment provided with the device
1596014551Arrangement for transmitting and receiving radio frequency signal at two frequency bands
1606011959Combiner circuit for dual band voltage controlled oscillators
1616011952Self-interference cancellation for relayed communication networks

1999

1626005455Integrated filter
1635999824Radio signal processing apparatus of portable telephone for sharing digital/analog compatible mode and personal communication service mode
1645974301Frequency cancelling system and method
1655963854Antenna amplifier
1665945882Synchronizing method of distributed reference oscillation systems and reference oscillation generation apparatus
1675915212System and method for achieving extended radio coverage and additional capacity using extended frequency bands
1685912798Dielectric ceramic filter
1695910731Front end interface circuit and method of tuning the same
1705881054Frequency division duplex transmitter which attenuates the difference between a receiving frequency an output frequency from a second oscillator

1998

1715818298Linear amplifying apparatus using coupled non-linear amplifiers
1725815804Dual-band filter network
1735815803Wideband high isolation circulatior network
1745778025Transmitting-receiving circuit
1755771444Waste energy control and management in power amplifiers
1765768691Antenna switching circuits for radio telephones
1775737696Dielectric filter having inductive coupling windows between resonators and transceiver using the dielectric filter
1785732325Waste energy control and management in power amplifiers
1795729829Interference mitigation method and apparatus for multiple collocated transceivers

1997

1805701595Half duplex RF transceiver having low transmit path signal loss
1815701594Transmitter/receiver for a TDMA system using common IF SAW filter
1825691978Self-cancelling full-duplex RF communication system
1835689817RF duplexer bypassing techniques for transceivers
1845659886Digital mobile transceiver with phase adjusting strip lines connecting to a common antenna
1855638024Waste energy control and management in power amplifiers
1865634203Adaptive multi-receiver shared antenna matching system and method
1875631604Waste energy control and management in power amplifiers
1885630223Adaptive method and apparatus for eliminating interference between radio transceivers
1895625894Switch filter having selectively interconnected filter stages and ports

1996

1905574978Interference cancellation system and radio system for multiple radios on a small platform
1915574967Waste energy control and management in power amplifiers
1925568088Waste energy control and management in power amplifier
1935561406Duplexer package
1945554960Branching filter, branching filter module and radio commnication apparatus
1955535433Hands-free circuitry providing audio signal adjustment based on speaker volume value
1965535430Mobile communication terminal equipment usable for both satellite and terrestrial communications
1975521561Arrangement for separating transmission and reception
1985519887Switchable filter phase-locked loop frequency synthesizer device and method for achieving dual-mode cellular communications
1995486797Integrated port selection circuit for high frequency signal

1995

2005477532Radio transceiver
2015446464Transceiver module
2025444864Method and apparatus for cancelling in-band energy leakage from transmitter to receiver
2035428831Signal path length correlator and method and an interference cancellation system using the same
2045386203Antenna coupler
2055379011Surface mount ceramic filter duplexer having reduced input/output coupling and adjustable high-side transmission zeroes

1994

2065369782Radio relay system, including interference signal cancellation
2075349694Radio relay system with a multiplex separation circuit and control for providing time delay multiplex operation of receiver and transmitter
2085276914Dual-mode transceiver that switches out a large insertion loss filter during transmission

1993

2095267297Base station for a radio communication system
2105267234Radio transceiver with duplex and notch filter
2115263055Apparatus and method for reducing harmonic interference generated by a clock signal
2125241693Single-block filter for antenna duplexing and antenna-switched diversity

1992

2135155724Dual mode diplexer/multiplexer
2145140699Detector DC offset compensator
2155109541Car-mounted type booster system for hand-held phone
2165109536Single-block filter for antenna duplexing and antenna-summed diversity

1991

2174991165Digital adaptive interference canceller

1990

2184968967Continuously transmitting and receiving radar
2194952193Interference cancelling system and method
2204918685Transceiver arrangement for full-duplex data transmission comprising an echo canceller and provisions for testing the arrangement

1989

2214868874Echo canceller
2224864634Radio communication apparatus free from interference between local signal and transmission signal
2234850034Method and apparatus for installing a cellular telephone in a vehicle

1987

2244660042Cancellation system for transmitter interference with nearby receiver

1985

2254535476Offset geometry, interference canceling receiver
2264493111Electronic antenna decoupling process and device

1984

2274475246Simulcast same frequency repeater system
2284462098Radio frequency signal combining/sorting apparatus

1982

2294325140Full duplex communication system apparatus using frequency selective limiters

1981

2304246582Full duplex transceiver comprising hybrid coil and automatic impedance adjustment means

1980

2314186344Frequency converter

1978

2324087751Transmitter-receiver circuit

1977

2334051475Radio receiver isolation system
2344011410Communication system interface circuits

1976

2353973089Adaptive hybrid circuit
2363965447Synthetic reactor circuit
© 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017