Modulation method and radio communication system

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

2007-06-19

2007-06-19

Kim, Kevin (Department: 2611)

Pulse or digital communications

Receivers

C370S204000, C375S322000, C375S346000

Reexamination Certificate

active

10256202

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 et al.
patent: 6125148 (2000-09-01), Frodigh et al.
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.

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