Integrated circuit with on-chip clock frequency matching to...

Details Integrated circuit with on-chip clock frequency matching to... Integrated circuit with on-chip clock frequency matching to...

2008-04-22

2008-04-22

Pham, Chi (Department: 2616)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C713S400000, C713S401000, C375S356000

Reexamination Certificate

active

10624264

ABSTRACT:
One aspect of the present invention concerns a method for controlling the frequency of oscillation of a local clock signal comprising the steps of (A) generating the clock signal in response to a first control signal, (B) generating the first control signal in response to one of a plurality of adjustment signals selected in response to a second control signal and (C) generating the second control signal in response to a comparison between a local timestamp and an external timestamp.

REFERENCES:
patent: 7043651 (2006-05-01), Aweya et al.
patent: 7191355 (2007-03-01), Ouellette et al.
patent: 2006/0062195 (2006-03-01), Gervais et al.
patent: 2006/0109059 (2006-05-01), Skerritt
patent: 2006/0153182 (2006-07-01), Lockridge et al.

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