Clock switching circuit

Details Clock switching circuit Clock switching circuit

2006-09-19

2010-02-02

Bocure, Tesfaldet (Department: 2611)

Pulse or digital communications

Synchronizers

Reexamination Certificate

active

07656980

ABSTRACT:
This invention provides a clock switching circuit that can switch clocks without causing a hazard or a distortion of a duty ratio of the clocks. The clock switching circuit of this invention includes a first synchronization circuit that synchronizes a clock selection signal with a first clock, a second synchronization circuit that synchronizes with a second clock the clock selection signal that has been synchronized with the first clock by the first synchronization circuit and a clock selection circuit that outputs “1”, that is a high level, in synchronization with the clock selection signal that has been synchronized with the first clock by the first synchronization circuit and after that selects the second clock in synchronization with the clock selection signal that has been synchronized with the second clock by the second synchronization circuit.

REFERENCES:
patent: 4229699 (1980-10-01), Frissell
patent: 7246286 (2007-07-01), Hsieh
patent: 2004/0202264 (2004-10-01), Choi
patent: 2008/0272814 (2008-11-01), Chiang et al.
patent: 07-248843 (1995-09-01), None
patent: 2003-223237 (2003-08-01), None
patent: 2003-347931 (2003-12-01), None
patent: 2004-054350 (2004-02-01), None
patent: 2005-050327 (2005-02-01), None

Affiliated with

Also associated with

Rating

Clock switching 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 Clock switching circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Clock switching circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4152390