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:
May. 22, 2012
Filed:
Oct. 23, 2009
Jeffrey C. Moore, Daly City, CA (US);
William G. Stewart, Cupertino, CA (US);
Gerhard H. Lengeling, Los Altos, CA (US);
Jeffrey C. Moore, Daly City, CA (US);
William G. Stewart, Cupertino, CA (US);
Gerhard H. Lengeling, Los Altos, CA (US);
Apple Inc., Cuperton, CA (US);
Abstract
An audio system communicates with an aggregate device that includes multiple audio devices. When providing audio data for playback, the system compensates for presentation latency differences between the various audio devices. In addition, the system adjusts for device clock drift by selecting a master device and resampling the audio data provided to the other devices based on the difference between the device clock of the master device and the device clocks of the other devices.