Pulse or digital communications – Receivers – Automatic gain control
Reexamination Certificate
2006-05-30
2006-05-30
Patel, Jay K. (Department: 2637)
Pulse or digital communications
Receivers
Automatic gain control
C375S317000
Reexamination Certificate
active
07054395
ABSTRACT:
A digital demodulation apparatus automatically controls gain based on a state of receiving a digital modulated signal. The digital demodulation apparatus amplifies a digital modulated signal wave received through the air with the gain automatically controlled so as to have a predetermined amplitude. In the digital demodulation apparatus, a receive level variation detector detects receive level variation, an amount of noise components of the received digital signal wave. A gain controller15controls the gain with a receive level variation adaptive control signal based on the detected receive level variation, the amount of noise components.
REFERENCES:
patent: 4628507 (1986-12-01), Otani
patent: 5287556 (1994-02-01), Cahill
patent: 5293247 (1994-03-01), Ganse
patent: 5408698 (1995-04-01), Serizawa et al.
patent: 5563916 (1996-10-01), Scarpa
patent: 5805241 (1998-09-01), Limberg
patent: 6070062 (2000-05-01), Yoshida et al.
patent: 6081565 (2000-06-01), Marandi et al.
patent: 6121828 (2000-09-01), Sasaki
patent: 6239848 (2001-05-01), Mycynek et al.
patent: 6459458 (2002-10-01), Balaban
patent: 6650878 (2003-11-01), Abe et al.
patent: 6879630 (2005-04-01), Kokuryo et al.
patent: 0 562 568 (1993-09-01), None
patent: 11-331300 (1999-11-01), None
Direct conversion-how to make it work in TV tuners; Aschwanden, F.; Consumer Electronics, IEEE Transactions on vol. 42, Issue 3, Aug. 1996 pp. :729-738.
Azakami Hiroshi
Kato Hisaya
Konishi Takaaki
Ozeki Hiroaki
Tokunaga Naoya
Matsushita Electric - Industrial Co., Ltd.
Meek Jacob
Patel Jay K.
Wenderoth , Lind & Ponack, L.L.P.
LandOfFree
Automatic gain control for digital demodulation apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Automatic gain control for digital demodulation apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic gain control for digital demodulation apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3600571