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:
Feb. 14, 2006
Filed:
Feb. 23, 1999
Charles Edward Boice, Endicott, NY (US);
James David Greenfield, Binghamton, NY (US);
John Mark Kaczmarczyk, Endicott, NY (US);
Agnes Yee Ngai, Endwell, NY (US);
Stephen Philip Pokrinchak, Owego, NY (US);
Charles Edward Boice, Endicott, NY (US);
James David Greenfield, Binghamton, NY (US);
John Mark Kaczmarczyk, Endicott, NY (US);
Agnes Yee Ngai, Endwell, NY (US);
Stephen Philip Pokrinchak, Owego, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A digital video encoder is presented adapted for dynamically switching between sets of quantizer matrix tables without pausing encoding of a stream of video data. Two or more sets of quantizer matrix tables are held at the encoder's quantization unit and compressed store interface for dynamically switching between sets of quant matrix tables at a picture boundary of the sequence of video data, i.e., without stopping encoding of the sequence of video data. Further, while one set of matrix tables is being employed to quantize the stream of video data, the encoder can be updating or modifying another set of quantization matrix tables, again without stopping encoding of the sequence of video data.