US Patent 8010370 Bitrate control for perceptual coding

Patent 8010370 was granted and assigned to Apple (company) on August, 2011 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Apple (company)

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

8010370

Date of Patent

August 30, 2011

Patent Application Number

11495207

Date Filed

July 28, 2006

Patent Primary Examiner

‌

Leonard Saint Cyr

Patent abstract

Techniques for generating a target digital media item based on a source digital media item are described. A digital media item may be a song, a video clip, an album, or any length of audio or video. When adjusting the bit count for a portion of the target digital media item, instead of using the same set of parameter values used in a perceptual model for each portion of the source media item, the set of parameter values may be modified to encode the portion of the source digital media item. In this way, how audio or video is perceived is taken into account when adjusting a proposed bit count for a given portion of the target digital media item. Thus, while maintaining the same statistical bitrate as before increased digital media quality is achieved.