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:
Sep. 21, 1999
Filed:
Jul. 31, 1997
James Edward Burns, Basingstoke, GB;
Sony Corporation, Tokyo, JP;
Sony United Kingdom Limited, Weybridge, GB;
Abstract
Image data decompression apparatus and method for receiving data words comprising a first sub-word and a second sub-word, at least some possible values of the first sub-word specifying a run of at least m instances of a predetermined data value, corresponding second sub-words specifying a number of instances of the predetermined data value in a range from at least m instances. The apparatus includes a first decoder for decoding the first sub-words to detect whether a current first sub-word specifies a run of at least m instances of the predetermined value, and a second decoder for decoding the second sub-words to generate output decoded data. The apparatus also includes a data counter for counting output decoded data from the second decoder, an adder, responsive to detection of a data error in a current second sub-word, for adding to a count of the data counter an amount corresponding to a lowest number m of instances of the predetermined data value specified by the corresponding first sub-word, and a partial code detector, responsive to a second sub-word having only a portion thereof corrupted by an error therein for detecting the number of instances of the predetermined data value more than the number of instances specified by the first sub-word indicated by an uncorrupted portion thereof, and for controlling the adder to add to the count of the data counter the number of instances specified by the uncorrupted portion of the second sub-word.