Spread range control apparatus

Details Spread range control apparatus Spread range control apparatus

2007-12-04

2007-12-04

Phu, Phuong (Department: 2611)

Pulse or digital communications

Synchronizers

Phase displacement, slip or jitter correction

C375S375000, C375S130000, C375S140000

Reexamination Certificate

active

10460391

ABSTRACT:
A spread range control apparatus of the present invention controls a clock generator, which generates a spread spectrum clock based on setting of spread data, so as to regulate a spread range of the spread spectrum clock. The spread range control apparatus includes: a loading quantity detection module that detects a loading quantity of a loading device, which is driven in response to a clock output from the clock generator; and a spread range setting module that sets spread data, which represents a spread range corresponding to the loading quantity detected by the loading quantity detection module, in the clock generator. This arrangement effectively protects a device having operations controlled in response to a clock from adverse effects possibly arising due to spread of the clock.

REFERENCES:
patent: 6553057 (2003-04-01), Sha et al.
patent: 6687319 (2004-02-01), Perino et al.
patent: 6850554 (2005-02-01), Sha et al.
patent: 6980581 (2005-12-01), Sha et al.
patent: 7015764 (2006-03-01), Starr et al.
patent: 2003/0163748 (2003-08-01), Calkins et al.

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