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:
Dec. 07, 2004
Filed:
Nov. 17, 1999
Larry Pearlstein, Newtown, PA (US);
Sharif Mohammad Sazzad, Monmouth Junction, NJ (US);
Hitachi America, Ltd., Tarrytown, NY (US);
Abstract
Video decoder methods and apparatus are described. In accordance with the invention, hardware decoder circuitry, e.g., intra-coded image decoding circuitry and motion vector reconstruction circuitry, is used in combination with a general purpose processor, e.g., Pentium processor, to perform video decoding operations. The video decoder hardware circuitry of the present invention is responsible for performing non-memory intensive functions. The general purpose processor or a general purpose processor operating in conjunction with a graphics processor are used to perform memory intensive video decoding operations such as motion compensated predictions. The video decoding hardware circuitry of the present invention can be implemented as a separate physical device, e.g., chip, or can be implemented on the same physical chip as a general purpose processor with which it works. By using the video decoding hardware circuitry of the present invention in combination with a CPU, a computer system's ability to perform video decoding operations can be significantly increased at little cost in terms of additional hardware.