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:
Jun. 15, 2010
Filed:
Dec. 22, 2006
Jyh-kai Chang, Sanchong, TW;
Wen-cheng Ho, Shigang Shiang, TW;
Jyh-Kai Chang, Sanchong, TW;
Wen-Cheng Ho, Shigang Shiang, TW;
Sunplus Technology Co., Ltd., Hsinchu, TW;
Abstract
A block decoding method and apparatus capable of decoding and outputting data in a longitudinal direction, which scans a compressed datastream and accordingly obtains a start address in the compressed datastream for each MCUR of a decompressed image, such that the apparatus can obtain blocks rotated with 90 degrees by performing a Huffman decoding in a longitudinal direction, a de-zigzag arrangement, an inverse quantization, an IDCT and a rotation. Since the decoding direction is identical to the output direction of a printer, only a desired column of data in the decompressed image is temporarily stored for output and accordingly the required memory size is relatively reduced.