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:
Nov. 23, 2004
Filed:
Mar. 12, 2003
Takahide Hirawa, Kyoto, JP;
Dainippon Screen Mfg. Co., Ltd., Kyoto, JP;
Abstract
A driving element ( ) for driving light modulator elements ( ) is provided with a register ( ) for storing driving voltage data ( ) and clock selection data ( ), a clock selection part ( ) for selecting an update clock ( ) out of a group of control clocks ( ) on the basis of the clock selection data ( ), and a D/A converter ( ), a current source ( ) and a resistance ( ) for converting the driving voltage data ( ) into a driving voltage. The timing of the update clock ( ) is shifted by the clock selection data ( ), to thereby control a driving timing of each light modulator element ( ). This makes it possible to achieve an appropriate writing while suppressing effects of driving characteristics of the light modulator elements ( ), the widths of irradiation areas irradiated by the light modulator elements ( ) in a scan direction, photosensitive characteristics of a recording medium and the like.