The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 16, 2007

Filed:

Dec. 29, 2003
Applicants:

James S. Song, Plano, TX (US);

Achuta R. Thippana, Plano, TX (US);

Minh G. Chau, Carrollton, TX (US);

Inventors:

James S. Song, Plano, TX (US);

Achuta R. Thippana, Plano, TX (US);

Minh G. Chau, Carrollton, TX (US);

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/04 (2006.01); G06F 1/24 (2006.01); G06F 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

In one embodiment, a method for balancing clock signals in a clock tree includes, at a register, receiving a divided input clock signal and a non-divided input clock signal and generating a first output clock signal based on the received divided input clock signal and the received non-divided input clock signal, the first output signal being associated with a first delay. The method further includes, at a delay line, receiving the non-divided input signal, delaying the non-divided input signal for a time substantially equivalent to the first delay, and generating a second output clock signal associated with a second delay substantially equal to the first delay. The method further includes: (1) receiving at a multiplexer the first output signal, the second output signal, and a select control signal indicating which of the first output signal or the second output signal to select; (2) selecting at the multiplexer either the received first output signal or the second output signal based on the select control signal; and (3) generating the selected first output signal or second output signal as a substantially balanced third output signal.


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