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:
Oct. 23, 2012
Filed:
Nov. 06, 2009
Ming-chung Hsu, Taipei Hsien, TW;
Yi-shin Tung, Taipei Hsien, TW;
Yi-shin LI, Taipei Hsien, TW;
Chia-ying LI, Taipei Hsien, TW;
Ming-Chung Hsu, Taipei Hsien, TW;
Yi-Shin Tung, Taipei Hsien, TW;
Yi-Shin Li, Taipei Hsien, TW;
Chia-Ying Li, Taipei Hsien, TW;
Hon Hai Precision Industry Co., Ltd., Tu-Cheng, New Taipei, TW;
Abstract
A discrete cosine transform (DCT) and inverse discrete cosine transform (IDCT) circuit includes a microcode memory, a processor, and a butterfly operation circuit. The microcode memory stores multiple microcode groups corresponding to DCT/IDCT operations and each of the microcode groups includes a series of microcodes. The processor obtains one of the microcode groups corresponding to one of the DCT/IDCT operations to be performed and retrieves microcodes in the obtained microcode group in sequence. The butterfly operation circuit performs butterfly operations according to the retrieved microcodes to execute one of the DCT/IDCT operations.