Pulse or digital communications – Transceivers – Transmission interface between two stations or terminals
Patent
1995-06-07
1998-02-10
Chin, Stephen
Pulse or digital communications
Transceivers
Transmission interface between two stations or terminals
341 61, H04B 138
Patent
active
057177155
ABSTRACT:
An integrated digital communication system utilizing multilevel vestigial sideband transmission is provided. The communication system receives a multi-level pulse-amplitude modulated digital signal from a limited bandwidth channel. The system includes processing stages which demodulate, sample and filter the incoming signal prior to recovery of the digital data. Other stages recover the timing and lock on to the frequency and phase of the transmitted signal, as well as provide for automatic gain control. An adaptive equalizer, error correction circuitry, and an output interface recover the digital data and provide for transfer to other devices.
REFERENCES:
patent: 4107780 (1978-08-01), Grimsdale et al.
patent: 4553129 (1985-11-01), McNesby et al.
patent: 4866637 (1989-09-01), Gonzalez-Lopez et al.
patent: 4910417 (1990-03-01), El Gamal et al.
patent: 5087975 (1992-02-01), Citta et al.
patent: 5122875 (1992-06-01), Raychaudhuri et al.
patent: 5168356 (1992-12-01), Acampora et al.
patent: 5175617 (1992-12-01), Wallace et al.
patent: 5182642 (1993-01-01), Gersdorff et al.
patent: 5283646 (1994-02-01), Bruder
patent: 5287420 (1994-02-01), Barrett
patent: 5311309 (1994-05-01), Ersoz et al.
patent: 5329619 (1994-07-01), Page et al.
Performance Results of a 64/256-QAM CATV Receiver Chip Set; Henry Samueli, Charles P. Reames, Leo Montreuil and William E. Wall.
Practical Implementation Of A 43 MBIT/SEC. (8BIT/HZ)Digital Modem For Cable Television; Rich Citta, Ron Lee; Zenith Electronics Corporation.
Bennett C. Wong, and Henry Samueli, A 200-MHz All-Digital QAM Modulator and Demodulator in 1.2-.mu.m CMOS for Digital Radio Applications, IEEE Journal of Solid-State Circuits, vol. 26, No. 12, Dec. 1991.
Robert A. Hawley, Thu-ji Lin, and Henry Samueli, A 300 Mhz Digital Double-Sideband to Single-Sideband Converter in 1 .mu.m CMOS, IEEE Journal of Solid-State Circuits, vol. 30, No. 1, Jan. 1995.
Barnes Mark
Claydon Anthony Peter J.
Bickel Arthur S.
Braun Robert T.
Chin Stephen
Clark Ronald J.
Discovision Associates
LandOfFree
Signal processing apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Signal processing apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Signal processing apparatus and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2083917