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. 27, 2011
Filed:
Apr. 26, 2004
Andrew M. Zador, Kitchener, CA;
Vadim M. Kustov, Kitchener, CA;
Leonard Henry Bradfield, Conestogo, CA;
Andrew M. Zador, Kitchener, CA;
Vadim M. Kustov, Kitchener, CA;
Leonard Henry Bradfield, Conestogo, CA;
Other;
Abstract
A wavelet pyramid-based still-image and video compression apparatus uses line-vectors, context-dependent quantization thresholds, hierarchical tree-structured displacement coding, synchronous prediction, and conditional zerotree branch updates to improve intra- and inter-frame coding speed and efficiency, and to improve video stream noise resilience. The disclosed intra-frame coding methods can be used to improve the coding efficiency of wavelet-based still-image compression algorithms.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile