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:
Sep. 12, 2006
Filed:
Dec. 12, 2001
Hiroshi Daiku, Kawasaki, JP;
Iwao Sugiyama, Kawasaki, JP;
Hiroshi Daiku, Kawasaki, JP;
Iwao Sugiyama, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
It is an object of the invention to provide a method of reducing flicker noises in an X-Y address type solid-state image pickup device for reducing flicker noises generated by a fluorescent light for room illumination when taking a picture in door. A configuration is provided in which signal storage time ts resulting in no flicker noise under a fluorescent lamp having an emission frequency of 120 Hz is preset (step S); average luminance of image data is calculated for each frame in a predetermined average luminance detection area allocated in the frame (step S); a difference in average luminance is calculated between frames (step S); and the signal storage time ts is changed based on the difference in luminance (steps S, Sand S).