СПИСОК патентов США - подгруппа МПК16 H04Q1/18



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№ п/п Номер патента Название патента

2013

18383925Sound collector, sound signal transmitter and music performance system for remote players

2010

27741555Hybrid wind musical instrument and electric system for the same

2007

37173964Method for detecting data transmission rate of USB controller by using USB device

2005

46959260System and method for device co-location discrimination
56943247Building material compositions
66934327Acquisition of a continuous-phase modulation waveform
76922438System for MPSK symbol hypothesis testing

2004

86798831Testing system
96711702Method for dealing with peripheral units reported as defective in a communications system
106690718Asymmetric digital subscriber line transceiver unit-card and method of controlling the same

2003

116654411Method and system for estimating error rate of a communication channel over a wide dynamic range

2002

126456675Diversity reception employing periodic testing
136433988Method and apparatus for protection switching
146389109Fault conditions affecting high speed data services
156385297Method and apparatus for qualifying loops for data services
166381643Mechanism and procedure for detecting switch mis-cabling
176363111Control loop for adaptive multilevel detection of a data signal
186335967Buffer for connection data

2001

196304655Signal capture for telecommunications switch
206202170Equipment protection system

2000

216061427Transmission power control method in asymmetric digital subscriber line system
226038253Data receiver with symbol rate discrimination and statistical analysis functions
236014369Method and apparatus for testing subscribers accommodated to service node in loop system

1999

245999592Network node event notification in circuit switched environments
255995587Method of controlling time switch for diagnosing failure on call path
265982770Check system for checking information indicative of connections in multistage switching network
275937032Testing method and apparatus for verifying correct connection of curcuit elements

1998

285852649Alarm notification system and method for a telephone switch
295838766System and method for providing shared resources to test platforms

1997

305596269Apparatus and method for testing electrical switch matrices

1996

315581688Tele- and data communication system

1995

325461662Electronic exchange apparatus
335448632Call monitoring system for intelligent call processing
345414695Method for monitoring existing telephone connections, particularly permanently switched telephone connections
355392328System and method for automatically detecting root causes of switching connection failures in a telephone network
365386454Remotely controlled multiple pair telephone pedestal/building terminal

1994

375351232Path monitoring system for cross-connect system
385349578Time slot switching function diagnostic system
395347270Method of testing switches and switching circuit
405329520High-speed facility protection in a digital telecommunications system
415305325Method and a device for supervising and testing majority voting
425280487Method and arrangement for detecting and localizing errors or faults in a multi-plane unit incorporated in a digital time switch
435276727Remote maintenance method and device thereof in private branch exchange system

1993

445261061Remote maintenance and administration method in a switchboard system
455198808Matrix switch apparatus with a diagnosis circuit having stand-by ports and reduced size matrix switching elements

1992

465134618Method of testing connecting and/or switching devices and/or lines

1991

474995042Switching exchange
484989176Remote maintenance system

1989

494860334System for detecting and locating defective crosspoint switches

1987

504692939Switch testing
514675896Remote monitoring apparatus
524670897Circuit testing of telephone grids or the like

1986

534596983Module for printed assemblies in a telecommunication system an apparatus for automatically putting the means on printed board assemblies newly inserted into the module into operation
544575839Centralized supervisory system

1985

554540857Circuit testing of telephone grids or the like
564523061Switching assembly for telephone cables

1984

574439826Diagnostic system for a distributed control switching network
584424498Adaptive equalizer

1983

594403119DTMF Activated remote telephone line switching and testing

1982

604331956Control means for a solid state crossbar switch

1980

614187414Circuit arrangement for an interference data alarm system in communication facilities, particularly in telephone equipment

1979

624169221Method and apparatus for testing a subscriber line group marker of a telephone central office cross bar switching device
634168402Electronic trunk selector
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Дата формирования списка: 03.04.2017