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:
Dec. 09, 2008
Filed:
Nov. 24, 2004
Applicants:
Ronald S. Cok, Rochester, NY (US);
Joshua M. Silbermann, Rochester, NY (US);
Inventors:
Ronald S. Cok, Rochester, NY (US);
Joshua M. Silbermann, Rochester, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J 1/44 (2006.01);
U.S. Cl.
CPC ...
Abstract
A circuit for detecting light comprising: a) a light-integrating photosensor circuit responsive to light for producing a variable voltage signal representing the accumulation of the light over time; and b) a measurement circuit for receiving a time measurement signal and the variable voltage signal to produce an output value representing the time required for the variable voltage signal to reach a predetermined voltage level, wherein the output value is proportional to the light accumulated during the required time.