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2016

19525503Reconfigurable multi-mode transceiver
29525453Intermodulation cancellation of third-order distortion in an FDD receiver
39461673Computing device with configurable antenna
49374127Balancing method of tunable duplexer
59319078Wireless communication device and sensing method
69246534Controling Tx/Rx mode in serial half-duplex UART separately from host

2015

79172401Computing device with configurable antenna
89154177Method for controlling transmission/reception timing of base station antenna for TDD wireless communications and base station antenna using the same

2013

98379547Resource selection for transmission of multiple ACK/NACK on PUCCH channel

2011

107973608Phase locked loop, semiconductor device, and wireless tag

2005

116931122Single transformer hybrid system and method
126917823Cellular telephone
136917682Method and device for echo cancelling
146898191Digital radio
156888939Circuit for joint transmitting voice and data over a telephone line
166859655TDD FDD air interface
176859051Systems and methods for impedance synthesis

2004

186829352Amplifier arrangement
196804349Hybrid transceiver circuit
206795690Full-duplex transceiver with distributed duplexing function
216795495Line driver with output impedance synthesis
226785325DSL splitter providing test access to an interconnected subscriber loop and method
236775529Active resistive summer for a transformer hybrid
246771770Hybrid circuit for a broadband modem
256748076Method for separating narrowband and broadband services on a transmission link and a splitter element
266747966Radio system and methods for duplex operation
276744831Adaptive electronic transmission signal cancellation apparatus for full duplex communication
286717981Transmitter image suppression in TDD transceivers
296700387Systems and methods for impedance synthesis
306681100Smart amplifier for time division duplex wireless applications

2003

316647115Method and apparatus for an improved analog echo canceller
326633642Balance network directional coupler system and method
336591086Enhanced time division duplexing (TDD) transceiver circuitry
346573729Systems and methods for impedance synthesis
356552446Method and device for electric supply in a mobile apparatus
366549567Full duplex ultrawide-band communication system and method
376522728Apparatus and method of implementing a universal home network on a customer premises ISDN bus
386507728Radio transceiver and a method of preventing transmission spurious response
396507651Hybrid amplifier

2002

406477250Adjustable hybrid having dial tone alignment configuration
416470046Apparatus and method for a combined DSL and voice system
426462523Load-synchronous doppler charge pump with an integrated series-path regulator
436434122Filtering method to allow FDD and TDD operation in PCS transreceivers
446426970Bi-directional signal coupler method and apparatus
456408193Cellular telephone
466400822Linear, optical coupled line impedance circuit
476385470Method and device for controlling the power consumption of a mobile radio device
486373908Adaptive electronic transmission signal cancellation apparatus for full duplex communication
496369650Impedance synthesis and DC biasing method and architecture for DSL/cable line drivers

2001

506327309Bidirection channels using common pins for transmit and receive paths
516292047Switching down conversion mixer for use in multi-stage receiver architectures
526282411Mobile communication terminal device
536282001Data access arrangement having improved transmit-receive separation
546269093Adaptive removal of disturbance in TDMA acoustic peripheral devices
556256511Dual-mode radio architecture
566233227Transmitting and receiving apparatus
576226275Wide band high power ultralinear RF transreceiver
586219564Time base alignment for digital mobile phones
596215988Dual band architectures for mobile stations
606212172Filtering method to allow FDD and TDD operation in PCS transreceivers
616208732Switched hybrid circuit for use with digital subscriber lines
626192220Phase lock loop system with ultrafast lock times for half duplex time division multiple access wireless data applications
636188274Bootstrap capacitor power supply for low voltage mobile communications power amplifier
646175747Base transceiver station and subscriber unit in wireless local loop system using personal handy-phone system and method for operating same
656172316Antenna switching device

2000

666163579Broadband modem transformer hybird
676130897Time division multiple access FDD/TDD dual mode radio and a time division multiple access TDD dual band system
686119023Digital portable telephone set having backlighted display with reduced power consumption
696112061Radio communication device
706111949Method of rapid automatic hybrid balancing
716108312Method and apparatus for automatic activation of a clock master on a stackable repeater
726104745Transceiver for performing time division full duplex spread spectrum communication
736087039Accumulator device for an electrical and/or electronic apparatus and telecommunication terminal having such a device
746067316Circuit for combined xDSL and other services
756064857Dual mode satellite telephone with hybrid battery/capacitor power supply
766049724Ultra-clean voltage power supply generator
776014551Arrangement for transmitting and receiving radio frequency signal at two frequency bands
786011323Apparatus, method and article of manufacture providing for auxiliary battery conservation in adapters

1999

796009316Receiver with an antenna switch, in which sensitivity and quality of reception is improved
806006116Time-division radio that is powered by a low-power energy source
815991606Apparatus for filtering signals of an antenna arrangement and a sender/receiver arrangement with two or more antennae
825987309Transceiver circuits for TDMA system with variable frequency second local oscillator
835982215Analog signal transmission circuit
845974305Dual band architectures for mobile stations
855974137AGC amplifier for two-wire line conditioner
865963638Adjustable hybrid having improved biasing configuration
875960346Apparatus and method for reducing magnetic fields in radio telephones
885953412Method and apparatus for controlling line conditioner equalizer
895923647Circulator usage in time division duplex radios
905912924Bidirectional channels using common pins for transmit and receive paths
915898907Radio transmitter-receiver adopting both a single frequency and a double frequency conversion
925896420Transmission apparatus having echo cancellation facility
935894473Multiple access communications system and method using code and time division
945892393Power supply circuit having an auxiliary power source for compensating for main power drop
955881373Muting a microphone in radiocommunication systems
965864544TDD communication system which receives timing signals from a satellite and automatically, successively, repetitively, and alternatingly transmits and receives compressed signals in a single channel
975862181Transmitting receiving apparatus

1998

985848062Wireless communication equipment for remote station
995842115Time-duplex wireless telephone with improved hearing-aid compatibility
1005825827Dynamically compensated linear regulator for pulsed transmitters
1015802450Transmit sequencing
1025802447Transmitter-receiver for a radio communication apparatus
1035793754Two-way, two-wire analog/digital communication system
1045784690Transceiver measuring battery voltage when receiving in a TDMA system
1055771277Elevator car modem with transhybrid rejection
1065768690Radio communication device with improved antenna duplexing apparatus
1075764700Digital radio link system and radio link terminal
1085742417Data access arrangement having improved transmit-receive separation
1095734703Hybrid circuit and data communication apparatus
1105719856Transmitter/receiver interface apparatus and method for a bi-directional transmission path
1115717736Testing circuit and method for a codec hybrid balance network
1125715520Frequency offset method and apparatus for use in a transceiver
1135710811Speech circuit for subscriber telephone apparatus

1997

1145701597Portable electronic device and method for supplying current to different loads
1155691978Self-cancelling full-duplex RF communication system
1165687169Full duplex ultrawide-band communication system and method
1175666302Simultaneous bidirectional transmission apparatus for transmitting and receiving differential signals
1185659886Digital mobile transceiver with phase adjusting strip lines connecting to a common antenna
1195657344Transmitting/receiving signal processing circuit in digital cordless telephone
1205648985Universal radio architecture for low-tier personal communication system
1215604768Frequency synchronized bidirectional radio system
1225603098Integrated radiating and coupling device for duplex communications
1235602912Telephone hybrid circuit
1245598405Time division multiple access time division duplex type transmitter-receiver

1996

1255579336Bidirectional transreceiver for high speed data system
1265579144Data access arrangement having improved transmit-receive separation
1275553317Quadrature modulator for TDMA/TDD radio communication apparatus
1285546421Self compensating spread-spectrum hybrid
1295544159Duplex interconnect/dispatch trunked radio
1305539858Voice coding communication system and apparatus
1315528686Transformerless hybrid circuit having direct powered line-side amplifiers
1325528685Transformerless hybrid circuit
1335528683Method and circuit for implementing an impedance, in particular for DC telephonic applications
1345526425Interface circuit between a four wire line and a two wire line
1355524274Transceiver controlled by absence/presence of input signal
1365521947Phase detection reset in phase locked loops used for direct VCO modulation
1375519711Switch-mode power supply for time division multiple access radio phone systems
1385515364Radio frequency telecommunications transceiver
1395493705Transmission control circuit for use in TDMA communication devices
1405490167Duplex voice communication radio transmitter-receiver
1415483679Radio communication apparatus capable of isolating a receiver from a transmitter during a reception operation

1995

1425479504Low voltage balanced hybrid circuit with operational amplifiers
1435477532Radio transceiver
1445473265Circuit configuration for the generation of a line terminating impedance
1455471187Data signal comparation with self-adjusting threshold
1465465298Solid state isolation device using opto-isolators
1475459787Circuit for the implementation of an impedance for a telephone speech circuit
1485457406Bidirectional signal transmission circuit and terminator
1495446770Time division duplex transceiver
1505444865Generating transmit injection from receiver first and second injections
1515436887Digital full-duplex transceiver
1525426697Duplex communication coupler system
1535423078Dual mode power amplifier for analog and digital cellular telephones
1545423075Combined radio transmission and reception apparatus with a PLL circuit
1555422950Remote terminal channel unit for telephone transmission lines
1565420886Digital transmission equipment
1575412688Process and circuit for detecting transmission using bi-directional differential links
1585408466Duplex interconnect dispatch trunked radio
1595387886Duplex filter operating as a change-over switch
1605379279Communication device with time assigned duplex operation

1994

1615377232Frequency synchronized bidirectional radio system
1625355363Voice transmission method and apparatus in duplex radio system
1635347538Transceiver for bidirectional link, integrated circuit including the transceiver, and application to communication between units of a system
1645333194Autoequalizing bidirectional-to-unidirectional hybrid network
1655319799Signal oscillation method for time-division duplex radio transceiver and apparatus using the same
1665319635Electronic duplex communication system
1675309429Transmitter-receiver
1685305378Arrangement for adjusting an adaptive digital filter included in a subscriber unit
1695303417Mixer for direct conversion receiver
1705295186Termination circuit for a two-wire transmission line
1715287406Hybrid circuit having a two-wire/four-wire converting function
1725282157Input impedance derived from a transfer network
1735280644Frequency control circuit, and associated method, for a receiver operative to receive signals-transmitted thereto in intermittent bursts
1745280526Transformer-less hybrid circuit

1993

1755271060Circuitry for interfacing telecommunications equipment to a communication channel
1765267233Radio set for an FDM-TDM-radio transmission set
1775255317Subscriber line interface circuit for serving ISDN subscribers using echo cancellers and POTS subscribers
1785253291Hybrid balance and combination codec filter circuit
1795253249Bidirectional transceiver for high speed data system
1805193223Power control circuitry for a TDMA radio frequency transmitter
1815187742Circuitry for interfacing telecommunications equipment to a communication channel

1992

1825175763Two-wire/four-wire converter
1835172411Two-wire/four-wire converter
1845164985Passive universal communicator system
1855136575Cancelling circuit and transmission system
1865123008Single frequency time division duplex transceiver

1991

1875043977Method and a circuit arrangement for setting the subscriber line dummy impedances of programmable hybrid circuits
1885034978Universal channel unit switchable between two wire and four wire configurations
1895007050Bidirectional digital serial interface for communication digital signals including digitized audio between microprocessor-based control and transceiver units of two-way radio communications equipment

1990

1904949335A TDM quasi-duplex system
1914918725Terminal impedance setting circuit for a two-wire to four-wire converting circuit
1924914693Telephone subscriber circuit
1934908820Non-reciprocal bidirectional duplexer
1944903257Digital two-way radio-communication system using single frequency
1954897871Apparatus for transmitting and/or receiving balanced signals on a two-wire telecommunication line
1964894864Interface circuit

1989

1974881262Electronic hybrid circuit
1984878244Electronic hybrid circuit
1994837522Noise reducer for microwave amplifier
2004807283Method for adjusting the balancing impedance of a hybrid junction
2014798982Active symmetrical balance hybrid circuit
2024796296PCM coder and decoder having function of two-wire/four-wire conversion

1988

2034758822Bidirectional amplifier
2044757530Adaptive hybrid
2054756022Integrated circuit for the transmission of telephone signals
2064742540Circuit for switching between balanced networks
2074724441Transmit/receive module for phased array antenna system

1987

2084715064Adaptive hybrid circuit
2094682356Apparatus for transmitting and/or receiving balanced signals on a two-wire telecommunication line
2104682350Equipment for wireless telephone transmission
2114677666Adaptive line hybrids
2124670870Adaptive cancellation bridge circuit
2134669115Hybrid circuit and method
2144644524Simultaneous communication system using time delays

1986

2154630257Duplex speech transmission method and a system therefor
2164622442Electronic hybrid having synthesized impedance circuitry
2174622441Two-wire/four wire communication interface with noise rejection
2184610010Control circuit for an adaptive hybrid control in a local area network
2194602338Impedance measurement in 4-wire to 2-wire converters
2204598172Telecommunication terminal
2214595803Bidirectional amplifier
2224595802Hybrid circuit
2234590334Supply circuit included in a DC-magnetized hybrid transformer
2244573168Balanced bidirectional or party line transceiver accommodating common-mode offset voltage
2254567331Electronic hybrid having synthesized impedance circuitry

1985

2264560843Electronic external line repeater
2274558185Subscriber line interface circuit with complex impedance
2284554416Low voltage two wire to four wire telephone circuit converter apparatus
2294540854Subscriber line interface circuit
2304539443Direct current magnetized hybrid transformer
2314525835Duplex radio system utilizing time compression expansion
2324520476Apparatus for enabling the duplex operation of a transmitter and receiver
2334501018Simplex transceiver employing a common piezoelectric element for transmitting and receiving
2344500755Electric hybrid circuits
2354498018Balancing impedance included in a fork
2364491700Hybrid circuit in a telephone subscriber interface circuit

1984

2374485341Current limiter circuit
2384485277Apparatus for transmitting and/or receiving balanced signals on a two-wire telecommunication line
2394480327Single channel duplex communication system
2404475245Transceiver
2414449218Analog/digital telecommunication subscriber station
2424433215Solid state hybrid circuits
2434431874Balanced current multiplier circuit for a subscriber loop interface circuit
2444424499Equalizer circuit for a repeater

1983

2454418249Four-wire terminating circuit
2464415777Hybrid circuit including capacitive charge-transfer means
2474411018Rapidly stabilized Gunn oscillator transceiver
2484398283Superhigh-frequency duplex mode telecommunications device
2494395599Driving point impedance derived from a transfer impedance
2504388500Electronic hybrid
2514387277Four wire to two wire converter
2524381561All digital LSI line circuit for analog lines
2534380690Hybrid circuit
2544380062Communication system providing simultaneous two-way transmission
2554378472Two to four wire hybrid circuit arrangement for a pulse code modulated time multiplex telecommunication system
2564377858Digital two-to-four wire converter for full duplex signals
2574377730Tone elimination circuit
2584375015Improved electronic hybrid circuit
2594368362Automatic telephone loaded/nonloaded facility type identification circuit
2604368361Automatically adjustable bidirectional-to-unidirectional transmission network

1982

2614359609Circuit with feedback for controlling the impedance thereof
2624358644Bilateral current source for a multi-terminal intercom
2634358643Two to four wire hybrid circuit
2644357494Impedance canceller circuit
2654351060Automatic, digitally synthesized matching line terminating impedance
2664349919Transmitter/receivers capable of contemporaneous transmission/reception
2674348757Transceivers
2684346267Hybrid circuit
2694346266Hybrid circuit
2704331843Apparatus for controlling and indicating the integrity of the connection of telephone subscribers to a switching system
2714331842Voice frequency repeater and term sets and other circuits therefor
2724326109Apparatus for coupling a two-way transmission path to a one-way transmitting path and a one-way receiving path
2734322586Transformerless line interface circuit
2744321431Trunk circuit with single coupling transformer
2754320498Auto balancing duplexer for communication lines
2764319093Transmission bridge for a subscriber set
2774314196Current limiting circuit
2784313225Opto-isolator hybrid circuit

1981

2794302636Subscriber's electronic line equipment comprising a two-wire-four-wire conversion circuit for a telephone exchange
2804301336Hybrid circuit
2814300023Hybrid circuit
2824297536Self-adjusting hybrid network
2834292479Separation and balance device for telephone exchanges
2844289939Longitudinal balance arrangements for two-to-four wire telecommunication line circuits
2854286114Two-wire resistance bridges for private line circuits
2864284859Adaptive electronic hybrid circuit
2874281219Telephone line circuit
2884278848Automatically adjustable bidirectional-to-unidirectional transmission network
2894278847Transformerless hybrid circuits
2904275276Automatically adjustable bidirectional-to-unidirectional transmission network
2914275270Speech detector for use in an adaptive hybrid circuit
2924272656Quasi-resistive battery feed for telephone circuits
2934271501Splitter/combiner network

1980

2944238850Transmitter/receiver for single channel duplex communication system
2954217549Device for two-way information link
2964203012Hybrid circuit using current mirror circuits
2974203009Unbalanced/balanced converter circuits
2984192978Operational amplifier hybrid system
2994190747Signal corrected optocoupled device
3004182936Transformerless trunk circuit
3014181824Balancing impedance circuit

1979

3024178485Transformerless telephone line circuit
3034174470Electronic hybrid
3044163878Electronic hybrid and hybrid repeater with bridge circuit
3054162447Frequency synthesis method for an AM-SSB transmitter-receiver
3064145657Radio transmission system for two subscribers to have a mutual connection on one of several frequency channels and having time multiplex interlace of preferred channels
3074142075Interface circuit and method for telephone extension lines
3084140875Four-wire, eight-leg bridge
3094134068Transmitter/receivers

1978

3104127750Apparatus for transmitting and receiving pulses
3114113996Voltage controlled current sources for active hybrid circuit
3124103118Autobalance hybrid circuit
3134096362Automatic cable balancing network
3144086545Phase locked loop type transmitter receiver
3154086447Electronic hybrid circuit for connecting a two-wire line to switching system
3164074087Bidirectional voice frequency repeater
3174069454Transmitter-receiver employing automatic channel hunting and selection

1977

3184064377Electronic hybrid and hybrid repeater
3194062016Simultaneous telecommunication between radio stations
3204053722Solid state two-wire/four-wire converter with common battery
3214048561Apparatus for preventing simultaneous transmission and channel selection in a transmitter or transceiver
3224041252Transformerless two-wire/four-wire hybrid with DC sourcing capability
3234039766Electric two-to-four wire conversion circuit for use in telephone systems
3244037158Two-way FM radio system operating on a single channel and providing simulated duplex operation
325403706520 Hz Ringdown solid state two-wire/four-wire converter
3264034295Radio communication system for simultaneous telecommunication between radio stations
3274034166Transmission networks for telephone system
3284004109Hybrid circuit
3294002860Transmitting and receiving apparatus
3304001524Apparatus for transmitting and receiving pulses

1976

3313987257Optically coupled two-wire to four-wire hybrid lines
3323982080Automatic cable balancing network
3333973089Adaptive hybrid circuit
3343973088Wide-band hybrid network
3353970805Active hybrid circuit
3363946169Bilateral signal transmission system
3373942116Transceiver having improved voice actuated carrier and echo suppression circuit
3383939417Emergency communications system
3393934099Bias, feedback and network arrangements for hybrid circuits
3403932712Telephone transmission system
© 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017