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:
Jan. 06, 2004
Filed:
Sep. 13, 2002
Satoshi Nishimura, Irvine, CA (US);
Morpho Technologies, Irvine, CA (US);
Abstract
Apparatuses and methods for decoding a bit stream of variable-length and fixed-length codewords representing encoded digital content. A decoder includes a memory for storing microinstructions that control the decoder. The decoder further includes a first barrel shifter for extracting a first bit field from the bit stream, a position of the first bit field being specified by the microinstruction, and a second barrel shifter for extracting a second bit field from the bit stream, a position of the second bit field being specified by the microinstructions. A microprogram counter keeps an address of a currently-executing microinstruction of the microinstructions, where a next state of the microprogram counter is determined by the microinstructions and the first bit field. A data converter modifies a value of the second bit field according to the microinstructions. A data storage stores either data in the microinstructions or an output of the data converter as decoded data values.