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.

Date of Patent:
Nov. 20, 2012

Filed:

Mar. 10, 2008
Applicants:

Takanori Inadome, Kanagawa, JP;

Noriaki Orikasa, Kanagawa, JP;

Inventors:

Takanori Inadome, Kanagawa, JP;

Noriaki Orikasa, Kanagawa, JP;

Assignee:

Ricoh Company, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 1/04 (2006.01); H04N 1/46 (2006.01); G05F 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A turning-on control unit causes a turning-on unit to apply to a light source an initial voltage when turning on the light source and to apply a rated voltage after the light source has been turned on. The initial voltage is higher than the rated voltage. An image-signal control unit controls analog signals to be input to an analog signal processing unit from a turn-on time point that is a time point at which the light source is turned on until a stabilization time point that is a time point at which output of the light source is stabilized.


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