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:
Mar. 26, 2013
Filed:
Apr. 28, 2005
Xin Tong, Mountain View, CA (US);
Hsi Jung Wu, Sunnyvale, CA (US);
Thomas Pun, San Jose, CA (US);
Adriana Dumitras, Sunnyvale, CA (US);
Barin Geoffry Haskell, Mountain View, CA (US);
Jim Normile, Los Altos, CA (US);
Xin Tong, Mountain View, CA (US);
Hsi Jung Wu, Sunnyvale, CA (US);
Thomas Pun, San Jose, CA (US);
Adriana Dumitras, Sunnyvale, CA (US);
Barin Geoffry Haskell, Mountain View, CA (US);
Jim Normile, Los Altos, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
A novel multi-pass encoding method that encodes several images (e.g., several frames of a video sequence) is described. The method iteratively performs an encoding operation that encodes these images. The encoding operation is based on a nominal quantization parameter, which the method uses to compute quantization parameter for the images. During several different iterations of the encoding operation, the method uses several different nominal quantization parameters. The method stops its iterations when it reaches a terminating criterion (e.g., it identifies an acceptable encoding of the images).