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.:

US 8441550 B1

PDF
Full Text
Expired
Date of Patent:
May. 14, 2013

Filed:

Jul. 27, 2010
Applicants:

Daisuke Mizuguchi, Osaka, JP;

Kazuhiro Tsujino, Osaka, JP;

Inventors:

Daisuke Mizuguchi, Osaka, JP;

Kazuhiro Tsujino, Osaka, JP;

Assignee:

SANYO Electric Co., Ltd., Moriguchi-shi, Osaka, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 9/73 (2006.01); H04N 5/235 (2006.01); H04N 9/68 (2006.01); H04N 5/228 (2006.01);
U.S. Cl.
CPC ...
Abstract

A video camera includes an imager. An imager outputs an object scene image produced on an imaging surface. A detector detects a plurality of luminance change amounts respectively corresponding to a plurality of timings based on the object scene image outputted from the imager. A determiner determines generation/non-generation of a flicker by referring to a difference between a sine wave depicted along a time axis and the plurality of luminance change amounts detected by the detector. A first adjuster adjusts an angular frequency of the sine wave to a frequency corresponding to a drive system of the imager. A second adjuster adjusts an initial phase and an amplitude of the sine wave based on the plurality of luminance change amounts detected by the detector.


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