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:
Mar. 25, 2003
Filed:
Mar. 15, 2002
Phil Hallmark, Austin, TX (US);
Richard Greene, Austin, TX (US);
Analog Devices, Inc., Norwood, MA (US);
Abstract
A system for encoding and decoding information of a codeblock from a memory buffer that includes a context modeler that receives from the memory buffer the codeblock and divides the codeblock into a plurality of codesegments or decodes a codeblock worth of information from received compressed data. The codesegments includes a plurality of bits. The context modeler processes each of the codesegments individually by determining whether any of the bits need special coding information or decoding. The context modeler outputs coded bits associated with the bits that are coded with the special coding information and context information associated with the coded bits or outputs a codeblock worth of information to the memory buffer. An arithmetic coder receives the context information and coded bits and compresses the coded bits or receives compressed data and decompresses the compressed data to produce context information and coded bits.