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:
Dec. 26, 2000
Filed:
Jul. 16, 1999
Liang-Gee Chen, Taipei, TW;
Tsung-Han Tsai, Taipei, TW;
National Science Council, Taipei, TW;
Abstract
A hardware structure for inverse quantization and multichannel processing in MPEG-2 audio decoding is provided, which includes 5 groups of first-in-first-out (abbreviated as FIFO) registers, each group of which has 3 FIFO registers and are connected in series; a multiplier capable for receiving an internal data processing feedback from the last FIFO group of FIFO registers; a single register; a first adder/subtractor capable for receiving a feedback from the first group of FIFO registers and its output being fed to the first group of FIFO registers; a second adder/subtractor capable for receiving a feedback from a second group of FIFO registers. The second group of FIFO registers stores an output from the second adder/subtractor or an output from the first group of FIFO registers; a third group of FIFO registers stores an output from the single register or an output from the second group of FIFO registers; a fourth group of FIFO registers stores an output from the third group of FIFO registers; and so on. The single register output the calculated value of the multiplier as an output of the structure or to at least one of the first second adder/subtractor, second adder/subtractor and the third group of FIFO registers.