H04B3/21

СПИСОК патентов США - подгруппа МПК¹⁶ H04B3/21

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№ п/п	Номер патента	Название патента
2016
1	9515699	Dual mode serial transmission apparatus and method for switching mode thereof
2	9373876	Multiple-mode filter for radio frequency integrated circuits
3	9337991	Wireless communication unit, radio frequency module and method therefor
4	9270331	Method and system for detecting non-linear devices
5	9246544	Transmission line having variable characteristic impedance
2015
6	9191519	Echo suppressor using past echo path characteristics for updating
2014
7	8660820	Distortion cancellation using adaptive linearization
2011
8	7953456	Acoustic echo reduction in mobile terminals
2007
9	7162420	System and method for noise reduction having first and second adaptive filters
2006
10	7099822	System and method for noise reduction having first and second adaptive filters responsive to a stored vector
11	7095627	Frequency-selective shield structure and electric device having the structure
2005
12	6963642	Band-by-band full duplex communication
2004
13	6804349	Hybrid transceiver circuit
2003
14	6658107	Methods and apparatus for providing echo suppression using frequency domain nonlinear processing
15	6597787	Echo cancellation device for cancelling echos in a transceiver unit
2001
16	6246716	Information communication system
2000
17	6130943	Method and apparatus for suppressing echo in telephony
18	6088386	Transmitter with phase rotor, modulator/demodulator, communication system and method performed thereby
1998
19	5818945	Subband echo cancellation method using projection algorithm
20	5784454	Arrangement for communication with a subscriber
21	5721730	Spectral noise compensation for telecommunication signal processing
1996
22	5587998	Method and apparatus for reducing residual far-end echo in voice communication networks
23	5566167	Subband echo canceler
24	5561668	Echo canceler with subband attenuation and noise injection control
25	5517435	Method of identifying an unknown system with a band-splitting adaptive filter and a device thereof
26	5500880	Transmission system comprising a sub-band echo canceller which includes a sub-band coding arrangement
1994
27	5317596	Method and apparatus for echo cancellation with discrete multitone modulation
1992
28	5136577	Sub-band acoustic echo canceller
1991
29	5001701	Subband echo canceler including real time allocation among the subbands
1988
30	4747132	Howling canceller
1987
31	4644108	Adaptive sub-band echo suppressor
1986
32	4623980	Method of processing electrical signals by means of Fourier transformations
1977
33	4031338	Echo suppressor using frequency-selective center clipping
© 2017, ПАТ-Инфо, В.И. Карнышев Дата формирования списка: 03.04.2017