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:
Apr. 08, 2003
Filed:
Jan. 16, 2002
Applicant:
Inventors:
Zhongnong Jiang, Plano, TX (US);
Rustin W. Allred, Plano, TX (US);
James R. Hochschild, Plano, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/717 ;
U.S. Cl.
CPC ...
G06F 1/717 ;
Abstract
A method for providing a multi-stage filter on an input stream of digital data. In the method, the input stream of digital data is operated on with a first polyphase filter routine to produce a first stream of intermediate data. The first stream of intermediate data is operated on with a second polyphase filter routine. An optimizing indexing procedure is applied in performing instructions of the routines so as to execute fewer instructions that do not generate intermediate data on which the output stream of data is based.