СПИСОК патентов США - подгруппа МПК16 H04Q5/00



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№ п/п Номер патента Название патента

2013

18508334Inductive coupling exchange in a portable intelligent object with central and peripheral circuits
28466776Extended range passive wireless tag system and method

2012

38111140Transponder load modulation

2011

47974642System and method for estimating cell center position for cell ID based positioning

2010

57830273Sensor networks for pipeline monitoring
67767893Method of operating one or more individual entertainment display devices supported by spectators at a spectator event and an individual entertainment display device therefor

2005

76967428Selectable reflector arrays for SAW sensors and identification devices
86965295Electronic key system operable with charge capacitor power
96958677Object location monitoring system
106952157System and method for concurrently addressing multiple radio frequency identification tags from a single reader
116950009Dual mode transmitter/receiver and decoder for RF transponder units
126933848System and method for disabling data on radio frequency identification tags
136919802Multi-layer method of accommodating code collisions from multiple surface acoustic wave identification tags
146853294Networking applications for automated data collection

2004

156825754Radio frequency identification device for increasing tag activation distance and method thereof
166799230Peripheral device exchanging data with one of higher-order devices by switching interfaces
176791451System and method for improving the security of storage of firearms and other objects, and for aiding the recovery of such if removed from storage
186693512Device location and identification system
196686830Homodyne I/Q transceiver for a spread spectrum reader

2003

206594688Dedicated echo canceler for a workstation
216539086System and method for completing two calls using analog interface to telephone network

2002

226427007System and method for completing a call while at least one call is established using analog interface to telephone network
236411695System and method for completing two calls using analog interface to telephone network

2001

246263063System and method for provisioning an extra line on demand and for selectively connecting calls with a plurality of devices
256259353Transponder communication device for the contactless communication with mobile transponders, including means for carrying out an operational test, and transponder constructed as an operational-test transponder
266247133Method for authenticating electronic documents on a computer network

2000

276118387Counter
286115459Telephone switching system for easily implementing modification of connection information and medium storing telephone system control program
296078255System for logging premises hazard inspections
306018801Method for authenticating electronic documents on a computer network

1999

316005488User control interface architecture for automotive electronic systems
325952934Terminal ID automatic assigning system

1998

335739760Method and system for remote supervisory control

1996

345544235Identification of called directory number at multiple directory number per line premises prior to ringing signal reception

1993

355253289Terminal connection device
365247570Telephone answering system and apparatus for direct caller selection of a party line extension

1992

375142569Apparatus for selectively enabling subscriber device to respond to ringing signal in dependence upon ringing cadence
385140630Added main line apparatus
395086458Telephone answering system and apparatus for direct caller selection of a party line extension

1991

405040209Telephone ringing monitoring and control system
414998273Telephone line called number recognizer

1990

424975900Response delay system of an ISDN terminal in a point to multipoint configuration
434959853Frequency responsive selective ringing circuit

1989

444797874Circuit arrangement for the transmission of communication signals

1988

454761810Programmable selective ringing circuit and method for party telephone line
464755994Capacity expander for telephone line
474741024Selective ringing circuit for a telephone

1987

484701949Frequency responsive party telephone line selection apparatus and method
494653093Frequency selective ringer circuit
504653046Single channel subscriber carrier system
514645877Interface for connecting standard telephones to party lines

1986

524587380Interface for connecting standard telephones to party lines
534567330Interface for connecting standard telephones to party lines

1984

544459433Station identification circuit arrangement
554435619Switching network interfacing telephone-exchange equipment with two-subscriber party line

1983

564418245Interference limiting two-port network for 1+1 type transmission systems
574406004Ring scheduling apparatus for a digital multiplexed telecommunication system
584371756Bridge lifter module
594371755Bridge lifter circuit
604368358Loop sharing in digital systems

1982

614310723Party line apparatus

1981

624293737Ringing decoder circuit
634282410Ringing signal generator
644258230Party line telephone system

1980

654221935Control circuit for telephone subscriber station
664209667Subscriber drop-connected circuits
674197433Device for conveying a high-voltage low-frequency signal over a carrier connection

1979

684173714Communication circuit with combined power feed and data transmission over a phantom channel
694169217Line status apparatus for telephones
704169216Electronic hold and hold-release circuit for a telephone set in a multiple extension single line telephone system
714168403Key telephone system comprising only one control lead per outside line
724166931Miniature bridge lifter for telephone lines
734158111Exclusion system for a key telephone system
744154987Party intercept in selective multifrequency ringing systems

1978

754127824Sampling filter-detector
764109112Telephone isolation device
774103114Variable delay ringing detector

1977

784056694Telephone ringing detectors
794048551Battery charging circuit
804048448Multiparty telephone ringing
814021617Telephone ringer isolator

1976

823974342Switching arrangement for telecommunications systems
833947819Apparatus for expanding channel output capacity
843941933Paging intercommunication system
853939308Electronic side of line detector
863936614PBX ground start trunk interface for station carrier systems
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Дата формирования списка: 03.04.2017