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:
Aug. 19, 2014
Filed:
Oct. 28, 2011
Daniel S. Heller, San Francisco, CA (US);
Christopher G. Peak, San Jose, CA (US);
Guy G. Sotomayor, San Jose, CA (US);
Umesh S. Vaishampayan, Santa Clara, CA (US);
Daniel S. Heller, San Francisco, CA (US);
Christopher G. Peak, San Jose, CA (US);
Guy G. Sotomayor, San Jose, CA (US);
Umesh S. Vaishampayan, Santa Clara, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
A system and method are described for warming a processor from a low power state in anticipation of a time critical interrupt. For example, one embodiment of a method comprises: detecting that a time-critical interrupt will require processor resources at some point in the future; estimating a time at which the time-critical interrupt will be triggered; scheduling a timer interrupt to fire at a specified time prior to the estimated time that the time-critical interrupt will be triggered, the timer interrupt being scheduled with sufficient time to ensure that the processor is warmed to a level at which it is capable of handling the time-critical interrupt at the time that the time-critical interrupt is triggered; and responsively triggering the timer interrupt at the specified time prior to the time critical interrupt.