Telecommunications – Receiver or analog modulated signal frequency converter – Noise or interference elimination
Reexamination Certificate
2005-05-24
2005-05-24
Tran, Pablo N. (Department: 2685)
Telecommunications
Receiver or analog modulated signal frequency converter
Noise or interference elimination
C455S182300, C455S179100, C455S150100, C455S063100, C455S065000
Reexamination Certificate
active
06898420
ABSTRACT:
An apparatus and method for eliminating interference caused by spurious signals in communication signals communicated via a communication device on any one of a plurality of different channels, the communication device operating at a rate set by a system clock signal. The system clock frequency is generated at a first frequency, the first frequency generating spurious signals on at least one of the different channels. The system clock frequency is toggled by a first predetermined amount to a second frequency when the communication device is to be tuned to one of the different channels so as to remove the spurious signals from the tuned channel. The communication device is tuned to the at least one of the different channels. A return of the timing error to a predetermined value is synchronized at a start of a receive data capture event.
REFERENCES:
patent: 4545072 (1985-10-01), Skutta et al.
patent: 4896318 (1990-01-01), Kokubo et al.
patent: 5226058 (1993-07-01), Anderson et al.
patent: 5263055 (1993-11-01), Cahill
patent: 5335363 (1994-08-01), Basciano
patent: 5745848 (1998-04-01), Robin
patent: 5781849 (1998-07-01), Carlsson et al.
patent: 5812590 (1998-09-01), Black et al.
patent: 5926514 (1999-07-01), Meador et al.
patent: 6345175 (2002-02-01), Murakami
patent: 6567654 (2003-05-01), Coronel Arredondo et al.
Binzel Charles Philipp
Black Gregory R.
Loppnow Matthew
Motorola Inc.
Tran Pablo N.
LandOfFree
Method and apparatus for avoiding spurious signal receiver... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for avoiding spurious signal receiver..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for avoiding spurious signal receiver... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3440033