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.:

US 9374593 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 21, 2016

Filed:

Aug. 28, 2014
Applicant:

Fuji Xerox Co., Ltd., Minato-ku, Tokyo, JP;

Inventors:

Mitsuyuki Tamatani, Kanagawa, JP;

Kazuo Yamada, Kanagawa, JP;

Daisuke Matsumoto, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/36 (2006.01); G06K 9/46 (2006.01); H04N 19/44 (2014.01); H04N 19/91 (2014.01);
U.S. Cl.
CPC ...
H04N 19/44 (2014.11); H04N 19/91 (2014.11);
Abstract

A data decompressing device includes an effective code length detector and a determining unit. The detector detects an effective code length of an initial portion of compressed image data to be decompressed, and supplies the detected effective code length to a decompressing unit to decompress data having the effective code length from a head of the image data. The determining unit determines whether or not the initial portion of the image data corresponds to a specific pattern in which a block end code follows a code representing a specific DC difference value, and if having determined that the initial portion of the image data corresponds to the specific pattern, notifies the decompressing unit of the detection of the specific pattern without waiting for the detection of the effective code length, to allow the decompressing unit to output a predetermined decompression result corresponding to the specific DC difference value.


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