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:
Oct. 15, 2024
Filed:
Jul. 02, 2021
Apple Inc., Cupertino, CA (US);
Brijesh Tripathi, Los Altos, CA (US);
Shane J. Keil, San Jose, CA (US);
Manu Gulati, Saratoga, CA (US);
Jung Wook Cho, Cupertino, CA (US);
Erik P. Machnicki, San Jose, CA (US);
Gilbert H. Herbeck, Livermore, CA (US);
Timothy J. Millet, Mountain View, CA (US);
Joshua P. de Cesare, Campbell, CA (US);
Anand Dalal, San Jose, CA (US);
Michael F. Culbert, Monte Sereno, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
In an embodiment, a system on a chip (SOC) includes a component that remains powered when a central processing unit (CPU) processor and a memory controller of the SOC are powered off. The component may include a sensor capture unit to capture audio samples from an audio detector circuit and write them to a memory of the component. A processor of the component may be configured to search the audio samples for a predetermined pattern during a time when the CPU processor and the memory controller are powered down. In some embodiments, based on the audio samples filling to a threshold level in the memory of the component and a lack of detection of the predetermined pattern, the component is configured to wake up the memory controller and a path to the memory controller in order to write the audio sample to a memory controlled by the memory controller.