Modulation method and radio communication system

Details Modulation method and radio communication system Modulation method and radio communication system

2008-04-22

2008-04-22

Kim, Kevin (Department: 2611)

Pulse or digital communications

Transmitters

Angle modulation

C375S300000, C375S302000

Reexamination Certificate

active

09240632

ABSTRACT:
An input digital signal is periodically and alternately subjected to first modulation and second modulation, being thereby converted into a pair of a baseband I signal and a baseband Q signal. The first modulation and the second modulation are different from each other. The pair of the baseband I signal and the baseband Q signal are outputted. The first modulation may be at least 8-signal-point modulation while the second modulation may be phase shift keying.

REFERENCES:
patent: 4891806 (1990-01-01), Farias et al.
patent: 5027372 (1991-06-01), Wong
patent: 5535215 (1996-07-01), Hieatt, III
patent: 5577087 (1996-11-01), Furuya
patent: 5771224 (1998-06-01), Seki et al.
patent: 5909469 (1999-06-01), Frodigh et al.
patent: 5914959 (1999-06-01), Marchetto et al.
patent: 5933421 (1999-08-01), Alamouti et al.
patent: 6087986 (2000-07-01), Shoki
patent: 0734132 (1996-09-01), None
patent: 07-297862 (1995-11-01), None
patent: 08-265293 (1996-10-01), None
patent: 9-93302 (1997-04-01), None
European Search Report, EP 99101877, Jun. 6, 2002, pp. 1-3.

Affiliated with

Also associated with

Rating

Modulation method and radio communication 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 Modulation method and radio communication system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modulation method and radio communication system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3949511