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. 20, 2005
Filed:
Mar. 27, 2003
Takunari Inagaki, Saitama, JP;
Rui Miyamoto, Kanagawa, JP;
Takunari Inagaki, Saitama, JP;
Rui Miyamoto, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
This apparatus performs search for a bit plane where the first significant coefficient appears, as preprocessing of EBCOT coding processing of JPEG2000. This apparatus has a register for holding bit position data for each code block. In this apparatus, a code block of absolute value data of each inputted wavelet coefficient is identified and OR of the inputted absolute value data and the bit position data stored in the register is calculated. In this apparatus, the result of the calculation is stored again into the register as new bit position data. In this apparatus, the above-described OR calculation is performed to all the data in a wavelet transform area as a coding target, and the most significant bit plane of bit planes including a bit having a valid value is calculated for each block on the basis of the ultimately obtained bit position data.