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:
Nov. 22, 2005
Filed:
Sep. 20, 2001
David M. Boisvert, Windham, NH (US);
Joseph D. Clark, Hudson, NH (US);
Robert James Leboeuf Ii, Salem, NH (US);
Andrew Kenneth John Mcmahon, Santa Clara, CA (US);
Michael Joseph Maigret, Santa Clara, CA (US);
David M. Boisvert, Windham, NH (US);
Joseph D. Clark, Hudson, NH (US);
Robert James LeBoeuf II, Salem, NH (US);
Andrew Kenneth John McMahon, Santa Clara, CA (US);
Michael Joseph Maigret, Santa Clara, CA (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A linear pixel-array processing systems uses a combination of digital and analog signal processing techniques to calibrate the gain and offset of each pixel in the analog domain. A plurality of fixed gain and offset values are applied in the analog domain to adjust the gain and offset of each pixel at high speeds (on the order of 25–50 MHz). By adjusting the gain and offset in the analog domain, the dynamic range of pixel conversion is improved such that the conversion range is fully utilized (over 90%, on the order of 95%–99%). The gain and offset values are determined with an algorithmic calibration routine that corrects for non-ideal effects in the signal path. A single processing channel can be multiplexed to process multiple pixel arrays to provide for a cost effective solution. In higher speed systems, the single processing channel can be extended to multiple processing channels for improved throughput.