Transmission/reception apparatus and modulation system...

Details Transmission/reception apparatus and modulation system... Transmission/reception apparatus and modulation system...

2005-04-12

2005-04-12

Tse, Young T. (Department: 2637)

Pulse or digital communications

Transceivers

C375S320000, C375S329000

Reexamination Certificate

active

06879626

ABSTRACT:
Modulation system estimator108sets an amplitude value of a signal modulated with a multivalue modulation with the less number of bits per symbol among two modulation systems selectively used at a reference amplitude value, and estimates the modulation system applied on a received signal from a level of a difference between an amplitude value of a received signal and the reference amplitude value. First decider109makes a decision on a received symbol based on a first modulation system, second decider110makes a decision on a received symbol based on a second modulation system, and based on a modulation system estimated by modulation system estimator108, selector111selects either output from first decider109or second decider110to output.

REFERENCES:
patent: 4387461 (1983-06-01), Evans
patent: 5289476 (1994-02-01), Johnson et al.
patent: 5430743 (1995-07-01), Marturano et al.
patent: 5565926 (1996-10-01), Bryan et al.
patent: 5577087 (1996-11-01), Furuya
patent: 5745527 (1998-04-01), Kelton et al.
patent: 5960040 (1999-09-01), Cai et al.
patent: 6195396 (2001-02-01), Fang et al.
patent: 6504867 (2003-01-01), Efstathiou
patent: 20030063685 (2003-04-01), Yoshida
patent: 2713799 (1995-06-01), None
patent: 9186635 (1997-07-01), None
patent: 10247955 (1998-09-01), None
European Search Report dated Oct. 21, 2003.
Chinese Office Action dated May 9, 2003 with English translation.

Affiliated with

Also associated with

Rating

Transmission/reception apparatus and modulation system... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Transmission/reception apparatus and modulation system..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transmission/reception apparatus and modulation system... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3404578