Clock generator

Details Clock generator Clock generator

2006-03-28

2006-03-28

Callahan, Timothy P. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Clock or pulse waveform generating

C327S291000

Reexamination Certificate

active

07019577

ABSTRACT:
Systems and methods are disclosed to provide clock generation. In accordance with one embodiment, a clock generator chip is provided that is configurable and in-system programmable. The clock generator chip may provide programmable input circuits, programmable output circuits, and permit a JTAG boundary scan.

REFERENCES:
patent: 6028488 (2000-02-01), Landman et al.
patent: 6279077 (2001-08-01), Nasserbakht et al.
patent: 6622208 (2003-09-01), North
patent: 6661254 (2003-12-01), Agrawal et al.
patent: 6687320 (2004-02-01), Chiu et al.
patent: 6741846 (2004-05-01), Welland et al.
U.S. Appl. No. 10/629,221 entitled “Clock Generator With Skew Control” filed on Jul. 29, 2003.
3.3V Programmable Skew PLL Clock Driver Turboclock, IDT5V991A, Commercial and Industrial Temperature Ranges, Sep. 2001.
One-PLL General Purpose Flash-Programmable Clock Generator, CY22050, Cypress Semiconductor Corporation, San Jose, CA, Revised Dec. 14, 2002.
ICS541, PLL Clock Divider, Revision 021303, Integrated Circuit Systems, Inc.
User Programmable Laser Engine Pixel Clock Generator, ICS1574B, Aug. 31, 2000.
EEPROM Programmable 3-PLL Clock Generator IC, FS6370-01, AMI Semiconductor.

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