Image input apparatus, image input method, recording medium, and encryption processing program stored in computer-readable medium
    31.
    发明授权
    Image input apparatus, image input method, recording medium, and encryption processing program stored in computer-readable medium 失效
    存储在计算机可读介质中的图像输入装置,图像输入方法,记录介质和加密处理程序

    公开(公告)号:US06999588B1

    公开(公告)日:2006-02-14

    申请号:US09222846

    申请日:1998-12-30

    申请人: Kazuomi Oishi

    发明人: Kazuomi Oishi

    IPC分类号: H04N1/44

    摘要: In an image input apparatus provided with an image pick-up unit, an image signal generated by the image pick-up unit is converted into digital information. The digital information is then encrypted by using an encryption key. The encryption key is input into the image input apparatus from an external apparatus, such as an IC card. The image input apparatus erases the encryption key after the digital information has been encrypted. With this arrangement, unauthorized users can be prevented from obtaining the encryption key, and different encryption keys can be assigned to a plurality of users. Thus, the privacy and the security of the image information can be enhanced, and the copyright of the image information can be protected more reliably.

    摘要翻译: 在具有图像拾取单元的图像输入装置中,由图像拾取单元生成的图像信号被转换为数字信息。 然后使用加密密钥对数字信息进行加密。 加密密钥从诸如IC卡的外部装置输入到图像输入装置中。 图像输入装置在数字信息被加密之后擦除加密密钥。 通过这种安排,可以防止非法用户获得加密密钥,并且可以向多个用户分配不同的加密密钥。 因此,可以增强图像信息的隐私和安全性,并且可以更可靠地保护图像信息的版权。