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:
Jan. 06, 2004
Filed:
Aug. 09, 1999
Mark A Anderson, Ft Collins, CO (US);
Agilent Technologies, Inc., Palo Alto, CA (US);
Abstract
An improved method and apparatus for controlling the shutter open time in an opto-electronic device is presented. A frame of pixel intensity data is collected and the average pixel intensity value is across said frame is calculated and compared to a first threshold. If the average pixel intensity is outside a first intensity range defined by said first threshold, the shutter open time is adjusted in a first direction. Otherwise, the peak pixel intensity value across the frame is found and compared to a second threshold. If the peak pixel intensity value is outside a second intensity range defined by said second threshold, the shutter open time is adjusted in said first direction. If the peak pixel intensity value is not outside a second intensity range, the peak pixel intensity value is compared to a third threshold. If the peak pixel intensity value is outside a third intensity range defined by the third threshold, the shutter open time is adjusted in a second direction.