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:
May. 31, 2011
Filed:
Mar. 20, 2007
Peter Holloway, North Andover, MA (US);
Yunhong LI, Santa Clara, CA (US);
Wei MA, San Ramon, CA (US);
Peter Kamp, Rosmalen, NL;
Peter Holloway, North Andover, MA (US);
Yunhong Li, Santa Clara, CA (US);
Wei Ma, San Ramon, CA (US);
Peter Kamp, Rosmalen, NL;
National Semiconductor Corporation, Sunnyvale, CA (US);
Abstract
A synchronous detection and calibration system is provided for expedient calibration of differential acoustic sensors in a manufacturing and testing environment. By processing a series of sequentially received tones, respective portions of a system using differential acoustic sensors are tuned for optimum individual operation, following which corresponding control data are generated and stored for use in selecting among predetermined calibration vectors which establish and maintain optimum system operation.