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.
Patent No.:
Date of Patent:
Apr. 07, 2009
Filed:
Sep. 09, 2004
Nathan Chelstrom, Cedar Park, TX (US);
Mack Wayne Riley, Austin, TX (US);
Michael Fan Wang, Austin, TX (US);
Stephen Douglas Weitzel, Round Rock, TX (US);
Nathan Chelstrom, Cedar Park, TX (US);
Mack Wayne Riley, Austin, TX (US);
Michael Fan Wang, Austin, TX (US);
Stephen Douglas Weitzel, Round Rock, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
The present invention provides for reducing current spikes in a circuit when changing clocking frequencies. A first frequency is applied to a clock distribution network. A final frequency is selected. The first frequency is applied to a logic element over the clock distribution network. A hold signal is applied to the logic element. The clock rate of the clock distribution network is changed from the first frequency to the final frequency. The hold signal is unapplied to the logic element.