Invention Grant
US08931111B2 Optical writing apparatus, image forming apparatus and computer readable information recording medium
有权
光学写入装置，图像形成装置和计算机可读信息记录介质
- Patent Title: Optical writing apparatus, image forming apparatus and computer readable information recording medium
- Patent Title (中): 光学写入装置，图像形成装置和计算机可读信息记录介质
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Application No.: US12171317Application Date: 2008-07-11
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Publication No.: US08931111B2Publication Date: 2015-01-06
- Inventor: Tomonori Kimura
- Applicant: Tomonori Kimura
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: IPUSA, PLLC
- Priority: JP2007-185715 20070717; JP2008-179525 20080709
- Main IPC: G06F7/04
- IPC: G06F7/04 ; G06F17/30 ; H04N7/16 ; H04N1/44 ; H04N1/00
Abstract:
An optical writing apparatus has a part configured to superpose an unauthorized copy protection pattern on image data; a control part configured to recognize the unauthorized copy protection pattern, correct image data of the unauthorized copy protection pattern in pixel unit, and control a size of an isolated dot included in the unauthorized copy protection pattern; and a writing part configured to write a corresponding image on a photosensitive body based on the thus-corrected image data.
Public/Granted literature
- US20090025093A1 OPTICAL WRITING APPARATUS, IMAGE FORMING APPARATUS AND COMPUTER READABLE INFORMATION RECORDING MEDIUM Public/Granted day:2009-01-22
Information query
