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:
Mar. 06, 2012
Filed:
Feb. 07, 2008
Phillip L. Corson, Westford, VT (US);
Mete Erturk, Alburg, VT (US);
Ezra D. B. Hall, Richmond, VT (US);
Paul A. Niekrewicz, Essex Junction, VT (US);
Phillip L. Corson, Westford, VT (US);
Mete Erturk, Alburg, VT (US);
Ezra D. B. Hall, Richmond, VT (US);
Paul A. Niekrewicz, Essex Junction, VT (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Disclosed are embodiments of a pixel imaging circuit that incorporates a standard photodiode. However, the imaging circuit is modified with a feedback loop to provide a first photo response over a first portion of the light sensing range (e.g., at higher light intensity range) and a second reduced-sensitivity photo response over a second portion of the light sensing range (i.e., at a lower light intensity range), thereby extending the circuits dynamic range of coverage. Also disclosed are embodiments of an associated imaging method and a design structure that is embodied in a machine readable medium and used in the imaging circuit design process.