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:
Jul. 15, 2008
Filed:
Jun. 18, 2004
Trevor Davies, Walnut Creek, CA (US);
John David Couling, Wootton Bassett, GB;
Gopi Lakshminarayanan, Fremont, CA (US);
Martin John Richards, Redwood City, CA (US);
Trevor Davies, Walnut Creek, CA (US);
John David Couling, Wootton Bassett, GB;
Gopi Lakshminarayanan, Fremont, CA (US);
Martin John Richards, Redwood City, CA (US);
Dolby Laboratories Licensing Corporation, San Francisco, CA (US);
Abstract
A playback system in a digital cinema network synchronizes the presentation of visual and aural content by deriving timing information for packets of information that are conveyed in video and audio data streams, examining the timing information to determine if any misalignment between the two data streams is likely to be perceptible and, if the misalignment is deemed to be perceptible, introducing delays into one or both data streams to correct the misalignment. If the audio data stream precedes the video data stream, the audio data stream is delayed by an integer number of audio sample periods. If the video data stream precedes the audio data stream, the video data stream is delayed by an integer number of video frames and the audio data stream is delayed by an integer number of audio sample periods.