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    Method and apparatus for updating a computer system clock from a real time television signal
    32.
    发明授权
    Method and apparatus for updating a computer system clock from a real time television signal 有权

    公开(公告)号：US07034890B2

    公开(公告)日：2006-04-25

    申请号：US09835018

    申请日：2001-04-13

    Applicant: Ivan Wong Yin Yang

    Inventor： Ivan Wong Yin Yang

    IPC: H04N7/08 ,  H04N7/087

    CPC classification number: H04N21/4143 ,  G06F1/14 ,  H04N21/4305 ,  H04N21/4345 ,  H04N21/435

    Abstract: The system for updating a clock in an electronic device, such as a personal computer, has a receiver system having an input for receiving a real time signal and having an output on which is provided digital information representative of the real time signal. An extraction module is operatively coupled to the receiver system, the extraction module extracting at least a current time value from the display data. An update module is operatively coupled to the extraction module, the update module updating the clock in the computer when the current time value of the digital information differs from a current value of the clock in the computer. In one embodiment a validating unit is operatively coupled between the extraction module and the update module. The validating unit compares channel identification data derived from the display data to time zone data in the computer, the time zone data being indicative of a time zone in which the computer is currently located.

    System for encrypting data from multiple multimedia applications and method thereof
    34.
    发明授权
    System for encrypting data from multiple multimedia applications and method thereof 有权
    用于加密来自多个多媒体应用的数据的系统及其方法

    公开(公告)号：US06957329B1

    公开(公告)日：2005-10-18

    申请号：US09777245

    申请日：2001-02-05

    Applicant: Milivoje Aleksic ,  Daniel Wai-Him Wong ,  Kenneth Man ,  Ivan Wong-Yin Yang

    Inventor： Milivoje Aleksic ,  Daniel Wai-Him Wong ,  Kenneth Man ,  Ivan Wong-Yin Yang

    IPC: G11B20/00 ,  H04K1/00 ,  H04L9/00 ,  H04L9/08 ,  H04N7/167

    CPC classification number: G11B20/00086 ,  H04L9/0844 ,  H04N7/1675 ,  H04N21/23895 ,  H04N21/2541 ,  H04N21/25875 ,  H04N21/26613 ,  H04N21/43853 ,  H04N21/4627 ,  H04N21/835

    Abstract: Methods and systems are provided for encrypting data from a plurality of multimedia devices. A driver initiates authentication for the plurality of multimedia applications. The driver assigns a key registers to each of the applications, based on available key registers. The applications use generated encryption key values to send data to be decrypted by their assigned key registers. The driver notifies video processing hardware of encryption seed keys to determine the generated encryption key values and hardware stores the value of corresponding decryption keys the assigned key registers. Each register can be used to exclusively decrypt data from an application of the plurality of applications. The driver directs the encrypted data from the applications to the video processing hardware. The video processing hardware decrypts the data and processes it into image data accordingly.

    Abstract translation: 提供了用于加密来自多个多媒体设备的数据的方法和系统。 驾驶员启动多个多媒体应用的认证。 驱动程序根据可用的密钥寄存器为每个应用程序分配一个密钥寄存器。 应用程序使用生成的加密密钥值来发送要由其分配的密钥寄存器解密的数据。 驾驶员通过视频处理硬件通知加密种子密钥，以确定所生成的加密密钥值，并且硬件存储所分配的密钥寄存器的相应解密密钥的值。 每个寄存器可用于从多个应用的​​应用中专门解密数据。 驱动程序将加密数据从应用程序引导到视频处理硬件。 视频处理硬件解密数据并将其处理成相应的图像数据。

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