Invention Grant
US08170208B2 Image decrypting apparatus, image encrypting apparatus, and image decrypting method
有权
图像解密装置，图像加密装置和图像解密方法
- Patent Title: Image decrypting apparatus, image encrypting apparatus, and image decrypting method
- Patent Title (中): 图像解密装置，图像加密装置和图像解密方法
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Application No.: US12232901Application Date: 2008-09-25
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Publication No.: US08170208B2Publication Date: 2012-05-01
- Inventor: Kensuke Kuraki , Jun Takahashi , Shohei Nakagata , Taizo Anan
- Applicant: Kensuke Kuraki , Jun Takahashi , Shohei Nakagata , Taizo Anan
- Applicant Address: JP Kawasaki
- Assignee: Fujitsu Limited
- Current Assignee: Fujitsu Limited
- Current Assignee Address: JP Kawasaki
- Agency: Staas & Halsey LLP
- Priority: JP2008-048589 20080228
- Main IPC: G06F21/00
- IPC: G06F21/00 ; G09C5/00
Abstract:
When a decrypting apparatus receives an encrypted image, the apparatus detects the state of the encrypted image and determines whether the encrypted image is an image passed through only a digital medium or an analog medium, according to the state of the encrypted image. When the encrypted image is determined to be the image passed through only the digital medium, the decrypting apparatus switches to perform a digital decryption process and, when the encrypted image is determined to be the image passed through the analog medium, the decrypting apparatus switches to perform an analog decryption process.
Public/Granted literature
- US20090220076A1 Image decrypting apparatus, image encrypting apparatus, and image decrypting method Public/Granted day:2009-09-03
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