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Title:
IMAGE PROCESSING APPARATUS AND ITS CONTROL METHOD, AND COMPUTER PROGRAM AND STORAGE MEDIUM
Document Type and Number:
Japanese Patent JP2006314050
Kind Code:
A
Abstract:

To perform photography without losing shutter chances when performing urgent photography and to protect security of the photographed image in an electronic camera.

In the image processor, an encryption key for encrypting the photographed image is stored in a non-volatile memory 56, a decoding key for decoding the encrypted image is stored in a volatile memory 52, and when there is no decoding key during decoding, either a warning is displayed or input of the decoding key is facilitated. By invalidating the volatile memory 52 to the accompaniment of turning-off of a main body power supply or passage of a predetermined period of time, input of the decoding key is required when reproducing encrypted images stored in storage media 202 and 212, so that the security of the photographed images can be protected.


Inventors:
KOTO ETSURO
Application Number:
JP2005136503A
Publication Date:
November 16, 2006
Filing Date:
May 09, 2005
Export Citation:
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Assignee:
CANON KK
International Classes:
H04N5/225; H04L9/08; H04N1/44; H04N5/91; H04N5/92
Attorney, Agent or Firm:
Yasunori Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura