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.

Date of Patent:
Aug. 29, 2006

Filed:

Feb. 11, 2002
Applicants:

Shirish Gadre, San Jose, CA (US);

Fang-chuan Wu, Fremont, CA (US);

Elif Albuz, Sunnyvale, CA (US);

Raman Subramanian, Santa Clara, CA (US);

Inventors:

Shirish Gadre, San Jose, CA (US);

Fang-Chuan Wu, Fremont, CA (US);

Elif Albuz, Sunnyvale, CA (US);

Raman Subramanian, Santa Clara, CA (US);

Assignees:

Sony Corporation, Tokyo, JP;

Sony Electronics Inc., Park Ridge, NJ (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 5/85 (2006.01);
U.S. Cl.
CPC ...
Abstract

When switching between a DVD-video mode and a DVD-audio mode in a DVD-A/V player, a current video frame is stored in a current display buffer portion of the memory during the DVD-video mode. The DVD-A/V player is paused in the DVD-video mode and set in the DVD-audio mode. If it is determined that the current display buffer portion of the memory is a reserved display buffer portion of the memory, then the current video frame is copied to a reconstructed display buffer portion of the memory. At least the current display portion of the memory is designated as an ASV buffer and a frame buffer management scheme is changed so as to preserve the ASV buffer.


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