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:
Jun. 20, 2017
Filed:
Jun. 15, 2005
Shu Lin, Santa Clarita, CA (US);
Shu Lin, Santa Clarita, CA (US);
Thomson Licensing S.A., , FR;
Abstract
An apparatus and corresponding method are provided for encoding video signal data by applying an adaptive quantizer parameter responsive to bit-rate; where a video encoder for encoding video signal data for an image block relative to at least one reference picture includes an adaptive quantizer for applying an adaptive quantizer parameter responsive to a current bit-rate; and where a corresponding method includes initializing an adaptive quantizer, calculating the bits used by the video signal data with the adaptive quantizer, assigning bits to each of a plurality of picture types, calculating a difference in adaptive quantizer responsive to the assigned bits from the previous number of bits used by the group of pictures and obtaining an updated adaptive quantizer for the video signal data, calculating an adaptive quantizer for a portion of the video signal data, encoding the portion of the video signal data, and obtaining the actual number of bits used for the encoded portion of the video signal data.