Circuit for and method of employing a clock signal

Details Circuit for and method of employing a clock signal Circuit for and method of employing a clock signal

2007-01-02

2007-01-02

Callahan, Timothy P. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Clock or pulse waveform generating

C327S299000

Reexamination Certificate

active

11104347

ABSTRACT:
The circuits and methods of the present invention relate to circuits for generating a multiplied clock signal based upon a reference clock signal, and circuits using the clock signal to deserialize data. According to one embodiment of the invention, a circuit comprising a counter is coupled to generate a count representative of the period of the input clock signal. A divider circuit coupled to the counter generates a divided count. Finally, a clock generator coupled to the divider circuit outputs an output clock signal having a period which is based upon the divided count. According to other embodiments, circuits and methods disclose receiving serial data using the output clock signal, and outputting the data as parallel data using the reference clock.

REFERENCES:
patent: 4424703 (1984-01-01), Winter et al.
patent: 4538119 (1985-08-01), Ashida
patent: 5684418 (1997-11-01), Yanagiuchi
patent: 6314155 (2001-11-01), Shona et al.
patent: 6701445 (2004-03-01), Majos

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