Transceiver for full duplex communication systems

Details Transceiver for full duplex communication systems Transceiver for full duplex communication systems

2005-03-17

2010-06-15

Gauthier, Gerald (Department: 2614)

Multiplex communications

Duplex

C370S286000, C375S219000, C375S222000, C375S246000, C379S406010

Reexamination Certificate

active

07738408

ABSTRACT:
A transceiver in a full duplex communication system includes a hybrid circuit for transmitting a transmission signal or receiving a receive signal via the channel, the hybrid circuit includes an echo cancellation device for removing transmission signal components from the receive signal; wherein the hybrid circuit outputs a processed receive signal; and a gain amplifier being an OP-RC AGC is directly connected to the hybrid circuit for amplifying the processed receive signal, wherein a first node of the gain amplifier coupled to the echo cancellation device is a virtual ground.

REFERENCES:
patent: 3942095 (1976-03-01), Togneri et al.
patent: 4283770 (1981-08-01), Stewart
patent: 4360713 (1982-11-01), Joel
patent: 4602133 (1986-07-01), O'Neill
patent: 4937813 (1990-06-01), Schenk
patent: 4972436 (1990-11-01), Halim et al.
patent: 5007047 (1991-04-01), Sridhar et al.
patent: 5287406 (1994-02-01), Kakuishi
patent: 5291466 (1994-03-01), Kwak
patent: 5297163 (1994-03-01), Pfeiffer
patent: 5463695 (1995-10-01), Werrbach
patent: 5528687 (1996-06-01), Tanaka
patent: 5581166 (1996-12-01), Eismann et al.
patent: 5586181 (1996-12-01), Kiko
patent: 5694474 (1997-12-01), Ngo et al.
patent: 5812537 (1998-09-01), Betts et al.
patent: 5960077 (1999-09-01), Ishii et al.
patent: 6278785 (2001-08-01), Thomasson
patent: 6373908 (2002-04-01), Chan
patent: 6775529 (2004-08-01), Roo
patent: 6915141 (2005-07-01), Loke
patent: 6937104 (2005-08-01), Varadarajan et al.
patent: 6947478 (2005-09-01), Hauptmann et al.
patent: 6965578 (2005-11-01), Kappes
patent: 6980644 (2005-12-01), Sallaway et al.
patent: 7139342 (2006-11-01), Phanse
patent: 7269211 (2007-09-01), Lin et al.
patent: 7304961 (2007-12-01), Huang et al.
patent: 7307965 (2007-12-01), Huang
patent: 7457386 (2008-11-01), Phanse
patent: 2002/0101983 (2002-08-01), Lee
patent: 2003/0169875 (2003-09-01), Lee
patent: 2003/0214903 (2003-11-01), Lee
patent: 2005/0084003 (2005-04-01), Duron
patent: 2005/0094583 (2005-05-01), Gupta et al.
patent: 318989 (1997-11-01), None
patent: 507433 (2002-10-01), None
“15MHz, BiMOS Operational Amplifier with MOSFET Input/CMOS Output.”, Harris Semiconductor, Sep. 1998, pp. 1, 4, CA3130, CA3130A, No. 817.4., Harris Corporation 1998.

Affiliated with

Also associated with

Rating

Transceiver for full duplex communication systems does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Transceiver for full duplex communication systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transceiver for full duplex communication systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4168330