Carrier phase control circuit

Details Carrier phase control circuit Carrier phase control circuit

1995-11-06

1998-05-26

Ghebretinsae, Temesghen

Pulse or digital communications

Receivers

Automatic frequency control

375232, H04L 2706

Patent

active

057578656

ABSTRACT:
The invention provides a carrier phase control circuit which can eliminate a phase intercept fluctuation so that, when the carrier phase control circuit is applied to a very high speed modem having a communication speed of, for example, 28.8 kbps, occurrence of a communication error can be suppressed and the modem has an improved characteristic. The carrier phase control circuit is provided on a reception side of a communication apparatus and interposed between an automatic equalizer and a signal decision section. The carrier phase control circuit includes a frequency offset removal section for predicting and removing an offset of a frequency of a transmission signal based on an output of the automatic equalizer, and a phase intercept variation removal section for predicting and removing a phase intercept variation of the transmission signal based on an output of the frequency offset removal section and inputting a resulted signal as an output thereof to the signal decision section.

REFERENCES:
patent: 4777640 (1988-10-01), Turner et al.
patent: 4926499 (1990-05-01), Kobayashi et al.
patent: 5077755 (1991-12-01), Kaku et al.
patent: 5189684 (1993-02-01), Kaku et al.
patent: 5255290 (1993-10-01), Anvari
patent: 5412695 (1995-05-01), Murata
patent: 5440589 (1995-08-01), Kaku et al.
patent: 5598434 (1997-01-01), Kaku et al.

Affiliated with

Also associated with

Rating

Carrier phase control circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Carrier phase control circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carrier phase control circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1972815