Invention Grant
US07684065B2 Unauthorized copy preventing system, unauthorized copy preventing method, unauthorized copy preventing program and computer-readable information recording medium
失效
未经授权的复制防止系统，未经授权的复制防止方法，未经授权的复制防止程序和计算机可读信息记录介质
- Patent Title: Unauthorized copy preventing system, unauthorized copy preventing method, unauthorized copy preventing program and computer-readable information recording medium
- Patent Title (中): 未经授权的复制防止系统，未经授权的复制防止方法，未经授权的复制防止程序和计算机可读信息记录介质
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Application No.: US11048886Application Date: 2005-02-03
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Publication No.: US07684065B2Publication Date: 2010-03-23
- Inventor: Akira Murakata
- Applicant: Akira Murakata
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2004-029975 20040205
- Main IPC: G06K15/00
- IPC: G06K15/00 ; G06F3/12
Abstract:
An unauthorized copy preventing system for preventing unauthorized copy of an image in an image forming apparatus which carries out image forming, by carrying out predetermined processing on digital image information, includes: a digital signal processor for image processing configured to carry out predetermined image processing on an input image; a digital signal processor for security processing configured to produce an unauthorized copy determination result for determining whether or not unauthorized copy is being carried out on the image having undergone the image processing by the digital signal processor for image processing; and a digital signal processor control device configured to control the digital signal processor for image processing and the digital signal processor for security processing and prevent unauthorized copy.
Public/Granted literature
Information query
