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    System for encoding a glass master to enable detection of a counterfeit optical CD-ROM
    35.
    发明授权
    System for encoding a glass master to enable detection of a counterfeit optical CD-ROM 失效
    用于编码玻璃母板以便检测伪造光学CD-ROM的系统

    公开(公告)号：US5703858A

    公开(公告)日：1997-12-30

    申请号：US735377

    申请日：1996-10-21

    申请人： Michael L. Mitchell ,  Barry Alan Fite ,  Akiya Saito ,  Anthony C. New

    发明人： Michael L. Mitchell ,  Barry Alan Fite ,  Akiya Saito ,  Anthony C. New

    IPC分类号： G11B7/00 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/26 ,  G11B19/04 ,  G11B20/00

    CPC分类号： G11B20/00927 ,  G11B19/04 ,  G11B20/00086 ,  G11B20/00123 ,  G11B7/0045 ,  G11B7/263

    摘要： A device for enabling detection of a counterfeit optical CD-ROM is disclosed for use in a conventional mastering system. The device includes a signal source for providing a first signal for forming a predetermined defect in a glass master. The device also includes a switch for connecting a recorder of the mastering system to the signal source. In addition, the device includes a decoder for decoding encoded data and address information provided from an input source of the mastering system. Furthermore, the device includes a central processor unit which serves to detect whether a selected address from the decoded data is present. Upon detection of the selected address, the CPU controls the switch to connect the signal source to the recorder to enable the recorder to receive the first signal and form the predetermined defect at the selected address. When a CD-ROM manufactured from the glass master is played back, a desired error signal is generated at the predetermined address indicating that the CD-ROM is not counterfeit. Further, when a counterfeit CD-ROM is played back, the desired error signal is not generated at the predetermined address, thus enabling detection of the counterfeit CD-ROM. In addition, the defect is not visible to the unaided eye when the CD-ROM is viewed.

    摘要翻译： 公开了一种能够检测伪造光学CD-ROM的装置，用于传统的母盘制作系统。 该装置包括用于提供用于在玻璃母机中形成预定缺陷的第一信号的信号源。 该装置还包括用于将母盘制作系统的记录器连接到信号源的开关。 此外，该装置包括用于解码编码数据和从母盘制作系统的输入源提供的地址信息的解码器。 此外，该设备包括中央处理器单元，用于检测来自解码数据的所选地址是否存在。 在检测到所选择的地址时，CPU控制开关将信号源连接到记录器，以使记录器能够接收第一信号并在所选择的地址处形成预定的缺陷。 当从玻璃母盘制造的CD-ROM被播放时，在指定CD-ROM不是伪造的预定地址处产生期望的误差信号。 此外，当重放假冒CD-ROM时，在预定地址处不产生期望的误差信号，从而能够检测伪造的CD-ROM。 此外，当观看CD-ROM时，肉眼看不到缺陷。

    Secure mode answering machine
    36.
    发明授权
    Secure mode answering machine 失效
    安全模式应答机

    公开(公告)号：US5065428A

    公开(公告)日：1991-11-12

    申请号：US529800

    申请日：1990-05-29

    申请人： Michael L. Mitchell ,  George Hawkins

    发明人： Michael L. Mitchell ,  George Hawkins

    IPC分类号： H04M1/65

    CPC分类号： H04M1/6505

    摘要： A secure answering machine allows both secure and non-secure information to be recorded by incorporating a digital signal processor (DSP) and both a secure and non-secure RAM. The secure RAM is powered entirely by battery. The battery is then connected to the housing of the answering machine such that when the housing is tampered with, the power from the battery is shut off eliminating all information stored on the secure RAM. The secure RAM is only accessed using an encrypting code.

    摘要翻译： 安全的应答机允许通过并入数字信号处理器（DSP）以及安全和非安全的RAM来记录安全和非安全的信息。 安全RAM由电池完全供电。 然后将电池连接到应答机的壳体，使得当壳体被篡改时，来自电池的电力被切断，消除了存储在安全RAM上的所有信息。 安全RAM只能使用加密代码访问。