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:
Apr. 20, 2004
Filed:
Aug. 09, 2000
Per Fröjdh, Stockholm, SE;
Rickard Sjöberg, Tumba, SE;
Torbjörn Einarsson, Stockholm, SE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
A method and apparatus for maximizing the prediction utility of previously encoded macroblocks by adjusting the scanning order of the blocks within a macroblock to be encoded is disclosed. Where no previously encoded blocks are available above the macroblock being encoded, the alternative scanning orders allow for maximum utility of previously encoded blocks located to the left of the macroblock being encoded. Where no previously encoded blocks are available either above or to the left of the macroblock being encoded, the alternative scanning orders allow for maximum utility of information from blocks that are presently being encoded in the same macroblock. The particular scanning order used may be signaled implicitly based on the location of the macroblock being encoded, or it may be signaled explicitly by code words within the bitstream containing the encoded block information. In the case where the scanning order is to be signaled explicitly by a code word, the optimal scanning order may be chosen from among one or more scanning orders for any particular picture and macroblock.