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:
Mar. 30, 2004
Filed:
Mar. 15, 2001
Takumi Hashimoto, Sakurai, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
An image processing device includes an encoding control section which outputs a DCT start signal (DCTSTART), a quantizing start signal (QSTART), and a Huffman encoding start signal (HUFFSTART). It further includes a two-port memory, which has a writing port and a reading port independent from each other. In the case where the data for one block is written into the memory according to a column direction, and the data for one block is read out from the memory according to a zigzag-scan order or an alternate-scan order, a time difference between a time to start writing the data into the memory and a time to start reading the data from the memory is controlled such that all of the data written into the memory can be read out.