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    Multistandard video decoder
    1.
    发明公开
    Multistandard video decoder 审中-公开
    Multistandardvideodekodierer

    公开(公告)号：EP1562383A3

    公开(公告)日：2005-08-17

    申请号：EP05002311.8

    申请日：2005-02-03

    申请人： Broadcom Corporation

    发明人： Bidnur, Ravindra ,  Pai, Lakshmikanth Ramadas ,  Sherigar, Bhaskar ,  Sane, Anirudda ,  Bhatia, Sandeep ,  Agarwal, Gaurav

    IPC分类号： H04N7/26 ,  H04N7/50 ,  G06F9/38

    CPC分类号： H04N19/44 ,  H04N19/61 ,  H04N19/70

    摘要： Presented herein is a unified decoder architecture. A system comprises a video decoder, instruction memory, and a host processor. The video decoder decodes the video data encoded with the particular standard. The instruction memory stores a first set of instructions and a second set of instructions. The first set of instructions are for decoding encoded video data according to a first encoding standard. The second set of instruction are for decoding encoded video data according to a second encoding standard. The host processor provides an indication to the video decoder indicating the particular encoding standard. The video decoder executes the first set of instructions if the indication indicates that the particular encoding standard is the first encoding standard and executes the second set of instructions if the indication indicates that the particular encoding standard is the second encoding standard. The encoding standards can be MPEG-2, MPEG-4, DV-25.

    Multistandard video decoder
    2.
    发明公开
    Multistandard video decoder 审中-公开
    多标准视频解码器

    公开(公告)号：EP1562383A2

    公开(公告)日：2005-08-10

    申请号：EP05002311.8

    申请日：2005-02-03

    申请人： Broadcom Corporation

    发明人： Bidnur, Ravindra ,  Pai, Lakshmikanth Ramadas ,  Sherigar, Bhaskar ,  Sane, Anirudda ,  Bhatia, Sandeep ,  Agarwal, Gaurav

    IPC分类号： H04N7/26 ,  H04N7/50 ,  G06F9/38

    CPC分类号： H04N19/44 ,  H04N19/61 ,  H04N19/70

    摘要： Presented herein is a unified decoder architecture. A system comprises a video decoder, instruction memory, and a host processor. The video decoder decodes the video data encoded with the particular standard. The instruction memory stores a first set of instructions and a second set of instructions. The first set of instructions are for decoding encoded video data according to a first encoding standard. The second set of instruction are for decoding encoded video data according to a second encoding standard. The host processor provides an indication to the video decoder indicating the particular encoding standard. The video decoder executes the first set of instructions if the indication indicates that the particular encoding standard is the first encoding standard and executes the second set of instructions if the indication indicates that the particular encoding standard is the second encoding standard. The encoding standards can be MPEG-2, MPEG-4, DV-25.

    摘要翻译： 这里呈现的是统一的解码器架构。 一个系统包括视频解码器，指令存储器和主处理器。 视频解码器解码用特定标准编码的视频数据。 指令存储器存储第一组指令和第二组指令。 第一组指令用于根据第一编码标准对经编码的视频数据进行解码。 第二组指令用于根据第二编码标准对经编码的视频数据进行解码。 主处理器向视频解码器提供指示特定编码标准的指示。 如果指示指示特定编码标准是第一编码标准，则视频解码器执行第一指令集，并且如果指示指示特定编码标准是第二编码标准，则执行第二指令集。 编码标准可以是MPEG-2，MPEG-4，DV-25。

    System and method for programmably adjusting gain and frequency response in a 10-gigabit ethernet/fibre channel system
    7.
    发明公开
    System and method for programmably adjusting gain and frequency response in a 10-gigabit ethernet/fibre channel system 有权
    装置和方法用于在系统10千兆位以太网/光纤通道增益和频率响应的可编程调整

    公开(公告)号：EP1388959A3

    公开(公告)日：2005-06-08

    申请号：EP03018062.4

    申请日：2003-08-07

    申请人： Broadcom Corporation

    发明人： Fujimori, Ichiro ,  Tonietto, Davide

    IPC分类号： H04B10/17

    CPC分类号： H04B10/291

    摘要： Aspects of the invention may provide a method and system for adjusting a gain and/or a frequency response of an input signal for a multimode PHY device. A signal divider (704) may apportion the input signal into a gain adjustment signal and/or an equalization adjustment signal upon receipt of the input signal. A signal adjuster (702) coupled to the signal divider (704) may adjust a gain of the apportioned gain adjustment signal within the multimode PHY device (130). An equalizer (706) coupled to the signal divider (704) may be configured to equalize the equalization adjustment signal within the multimode PHY device (130). A summer (708) coupled to the equalizer (706) and signal adjuster (702) may be adapted to sum the adjusted adjustment signal and the equalized equalization adjustment signal within the multimode PHY device (130) to create an output equalized signal (712) having a desired gain and/or frequency response.

    Peak power reduction in a multicarrier modulator
    8.
    发明公开
    Peak power reduction in a multicarrier modulator 有权
    在多载波调制器的峰值功率的减少

    公开(公告)号：EP1168748A3

    公开(公告)日：2005-06-08

    申请号：EP01305376.4

    申请日：2001-06-21

    申请人： Broadcom Corporation

    发明人： Peeters, Miguel Philipe Paul

    IPC分类号： H04L27/26

    CPC分类号： H04L27/2624

    摘要： There is disclosed a technique in which any peaks above a threshold level are reduced, but not clipped, such that the effects of such peaks is reduced. Although the implementation of the technique preferably includes a clipping step, it is performed on the front-end rather than as the last step in the technique, such that the output signal is not a clipped signal. Any noise introduced by the clipping step, so-called clipping noise, is preferably filtered out of the useful frequency band of the signal.

    Proximity authentication system
    9.
    发明公开
    Proximity authentication system 审中-公开
    最近机场-Authentifizierungssystem

    公开(公告)号：EP1536306A1

    公开(公告)日：2005-06-01

    申请号：EP04023384.3

    申请日：2004-09-30

    申请人： Broadcom Corporation

    发明人： Buer, Mark ,  Frank, Edward H. ,  Seshadri, Nambirajan

    IPC分类号： G06F1/00

    CPC分类号： H04L63/0823 ,  G06F21/35 ,  G06Q20/327 ,  G07C9/00007 ,  H04L9/32 ,  H04L63/0492 ,  H04L63/0807 ,  H04L63/0853 ,  H04L63/0861 ,  H04L2209/805 ,  H04W4/021 ,  H04W4/80

    摘要： Access to secured services may be controlled based on the proximity of a wireless token to a computing device through which access to the secured services is obtained. An authorized user may be provided access to a service only when a wireless token assigned to the user is in the proximity of the computing device. A user's credential may be stored on an RFID token and an RFID reader may be implemented within a security boundary on the computing device. Thus, the credential may be passed to the security boundary without passing through the computing device via software messages or applications. The security boundary may be provided, in part, by incorporating the RFID reader onto the same chip as a cryptographic processing component. Once the information is received by the RFID reader it may be encrypted within the chip. As a result, the information may never be presented in the clear outside of the chip. The cryptographic processing component may cryptographically encrypt/sign the credential received from the token so that assurance may be provided to a service provider that the credentials came from a token that was proximate to the computing device. An RFID reader, cryptographic processing components and a wireless network controller may be implemented on a single chip in a mobile device.

    摘要翻译： 可以基于无线令牌与计算设备的接近度来控制对安全服务的访问，通过该计算设备获得对安全服务的访问。 只有当分配给用户的无线令牌位于计算设备附近时，授权用户才可以被提供对服务的访问。 用户的证书可以存储在RFID令牌上，并且可以在计算设备上的安全边界内实现RFID阅读器。 因此，凭证可以被传递到安全边界，而不经由软件消息或应用程序通过计算设备。 可以部分地通过将RFID读取器结合到与密码处理部件相同的芯片上来提供安全边界。 一旦RFID读取器接收到信息，它可以在芯片内进行加密。 因此，信息可能永远不会出现在芯片外面。 加密处理组件可以对从令牌接收到的凭证进行密码加密/签名，从而可以向服务提供商提供证书来自接近计算设备的令牌的保证。 可以在移动设备中的单个芯片上实现RFID读取器，加密处理组件和无线网络控制器。