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:
Sep. 18, 2001

Filed:

Dec. 23, 1998
Applicant:
Inventors:

Thomas L. Stachura, Portland, OR (US);

David L. Chalupsky, Banks, OR (US);

Assignee:

Intel Corporation, Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 5/13 ; H03L 7/00 ;
U.S. Cl.
CPC ...
H03K 5/13 ; H03L 7/00 ;
Abstract

The present invention includes a method and apparatus for smooth transitions (switching) between asynchronous clocks without the occurrence of glitches. In one embodiment the present invention is used when powering up and powering down a computer system and transitioning between a relatively faster primary clock and a slower alternate clock. In another embodiment the present invention is used for transitioning between a relatively faster primary clock to a slower alternate clock to conserve power, for example, when a laptop transitions between use mode and sleep mode.


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