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:
Jul. 19, 2005
Filed:
Mar. 08, 2001
Joel Page, Austin, TX (US);
Trenton John Grale, Austin, TX (US);
Zhuan YE, Buffalo Grove, IL (US);
Erng Sing Wee, Houston, TX (US);
Sumant Sathe, Austin, TX (US);
Sijiam Chen, Austin, TX (US);
Joel Page, Austin, TX (US);
Trenton John Grale, Austin, TX (US);
Zhuan Ye, Buffalo Grove, IL (US);
Erng Sing Wee, Houston, TX (US);
Sumant Sathe, Austin, TX (US);
Sijiam Chen, Austin, TX (US);
Cirrus Logic, Inc., Austin, TX (US);
Abstract
A low power programmable digital filter integrated circuit architecture has a programmable front end servicing up to 4 digital sources. Changing the programming of the front end permits digital outputs from different sensor types to be accommodated. Digital filtering is accomplished using a digital signal processor that is programmable to accommodate different decimation ratios. A serial data output register receives the filtered digital signals and provides them to an output port. The digital filter integrated circuit may be connected in a token passing configuration with other digital filter integrated circuits to increase the number of sources accommodated.