Pulse or digital communications – Spread spectrum
Reexamination Certificate
2007-03-06
2007-03-06
Ghebretinsae, Temesghen (Department: 2611)
Pulse or digital communications
Spread spectrum
Reexamination Certificate
active
10328904
ABSTRACT:
An analog spread spectrum signal generation circuit. A clock generator generates a periodic signal. A plurality of switchable analog loading elements each load the periodic signal by a respective load to vary propagation delay of the periodic signal to an output node. A decoder controls the plurality of switchable analog loading elements. A counter coupled to drive the decoder causes the output node to generate a periodic spread spectrum signal with modulated phase. In one embodiment, the periodic spread spectrum signal with modulated phase is used for reducing radiated electromagnetic interference and downstream phase-locked loop tracking error.
REFERENCES:
patent: 5442664 (1995-08-01), Rust et al.
patent: 6348827 (2002-02-01), Fifield et al.
patent: 6366161 (2002-04-01), Koazechi
patent: 6462623 (2002-10-01), Horan et al.
patent: 6559698 (2003-05-01), Miyabe
patent: 6643317 (2003-11-01), Blumer
patent: 6647052 (2003-11-01), Hailey
patent: 6703902 (2004-03-01), Jeon et al.
patent: 6731667 (2004-05-01), Lee et al.
patent: 6806767 (2004-10-01), Dow
patent: 6829311 (2004-12-01), Riley
patent: 6919744 (2005-07-01), Paist et al.
patent: 6982707 (2006-01-01), Wang
patent: 7043202 (2006-05-01), Ozawa et al.
Cypress Semiconductor Corporation
Ghebretinsae Temesghen
Torres Juan Alberto
LandOfFree
Analog spread spectrum signal generation circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Analog spread spectrum signal generation circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analog spread spectrum signal generation circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3791411