СПИСОК патентов США - подгруппа МПК16 H04B1/64


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№ п/п Номер патента Название патента

2017

19543991Compressed amplitude wireless signal and compression function

2016

29398371Analog signal transfer system, variable compressor, and variable expander
39344143Signal transmitting device and signal transmitting method

2015

49124315Compressed amplitude wireless signal and compression function
58948279Interrogator and interrogation system employing the same

2012

68265136Motion refinement engine for use in video encoding in accordance with a plurality of sub-pixel resolutions and methods for use therewith

2010

77667554Pre-emphasis adjustment method

2008

87391315System and method for monitoring security at a plurality of premises

2005

96940987Techniques for improving audio clarity and intelligibility at reduced bit rates over a digital network

2004

106807278Audio noise reduction system implemented through digital signal processing
116721700Audio coding method and apparatus
126714093Dynamics compressor for an analog signal to be compressed

2003

136597301Apparatus and method for level-dependent companding for wireless audio noise reduction
146542612Companding amplifier with sidechannel gain control
156518852Information signal compressor and expander

2001

166169808Signal compressing circuit

2000

176038430Method and apparatus for improving transmission of data in a wireless network
186038429Citizen's band radio with improved reception

1999

195910995DSP decoder for decoding analog SR encoded audio signals
205907623Audio noise reduction system implemented through digital signal processing
215907584System and method for transmitting and receiving a Lincompex signal having information encoded thereon through angle modulation
225901348Apparatus for enhancing sensitivity in compressive receivers and method for the same

1998

235845216Optimized companding for communication over cellular systems
245794187Method and apparatus for improving effective signal to noise ratios in hearing aids and other communication systems used in noisy environments without loss of spectral information
255737434Multi-band audio compressor with look-ahead clipper

1997

265682432Broadcast receiver
275631648Signal compression or expansion circuit for mobile communication

1996

285524148Background noise compensation in a telephone network
295495468System and method for transmitting plural information waveforms over a single communications channel using lincompex techniques
305493699Low noise communication analog compressor and analog expander
315485515Background noise compensation in a telephone network

1995

325454010System and method for calibration of frequency hopping
335428593Digital audio signal transforming method and apparatus

1994

345276764Method and device for compressing and expanding an analog signal

1993

355241689Digital signal processor audio compression in an RF base station system
365241282Wide dynamic range, low power, analog-to-digital receiver
375179361Compandor system with stable and widely adjustable unity gain level

1991

385065451System and method of frequency calibration in a linked compression-expansion (lincompex) system
395058202System and method of transmitting and receiving a licompex modulated signal over a communication channel utilizing frequency modulation techniques

1990

404944024Method and apparatus for reducing noise in a linked compressor-expander telecommunications system
414907217System and method of transmitting a complex waveform over a communication channel utilizing lincompex techniques
424894862Signal compression circuit, particularly for a telephone set

1989

434882762Multi-band programmable compression system
444876741Method of receiving a compressed composite signal

1988

454741039System for maximum efficient transfer of modulated energy
464718116Method and apparatus for receiving a compressed composite signal

1987

474677645Audio signal transmission system having noise reduction means
484642583Noise reduction in companding arrangements

1986

494600902Compandor noise reduction circuit
504573208Compressed single side band communications system and method

1985

514562571Speech processing device for radioelectric equipment adapted for speech transmission and reception
524551853Apparatus for processing speech in radioelectric transmitter/receiver equipment suitable for transmitting and receiving speech
534547741Noise reduction circuit with a main signal path and auxiliary signal path having a high pass filter characteristic
544539707Compressed single side band communications system and method
554536846Distortion reducer for companded analog systems
564531208Apparatus and method for reducing telephone channel power loading
574500842Adaptive gain variable bit rate NIC processor

1984

584485483FM Stereophonic system incorporating companding of difference signal
594457020Signal processing device for use on radio links
604430754Noise reducing apparatus

1983

614369509Gain control circuit for noise reduction system

1982

624326293Transmitter-receiver with automatic alternation control
634314372Methods and means for producing and reproducing transmitted or recorded sound or video signals
644313194Transmission system of frequency division multiplex signals on digital links
654309676Instantaneous compressor and instantaneous expandor

1981

664295223Digital signal/noise ratio amplifier apparatus for a communication system
674281295Noise reducing apparatus
684271499Method and apparatus for digitally implementing a linked compressor-expander telecommunications system
694253072Compandor with sampling and equalization
704250470Syllabic compander with logarithmic chain

1980

714221934Compandor for group of FDM signals
724181970Digital attenuator for compressed PCM signals

1979

734162462Noise reduction system
744152582Compaction/expansion logic
754151469Apparatus equipped with a transmitting and receiving station for generating, converting and transmitting signals
764145664Audio signal compression and expansion system
774136314Adaptive signal weighting system

1978

784123711Synchronized compressor and expander voice processing system for radio telephone
794114115Compandor apparatus
804112254Signal compander system
814110699Adaptive audio compressor
824103239Compressor for both speech and carrier signals
834101849Adaptive filter
844072914Compression and expansion system with enlarged dynamic range
854071695Speech signal amplitude equalizer
864068139IC compatible variable shunt impedance for Dolby B system

1977

874060764Transceiver audio system
884039949Pulse code modulation with dynamic range limiting
894038652Digital communications line terminal compacter/expander
904035739Signal dynamic compression and expansion circuits
914001732Calibration oscillators for noise reduction systems

1976

923978409Signal compressors and expanders
933972010Compressors, expanders and noise reduction systems
943969680Automatic dynamic compander system
953967219Signal compressors and expanders
963943466Compander for TDM telecommunication system
973934190Signal compressors and expanders
© 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017