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    Method and system for data encryption and decryption
    1.
    发明授权
    Method and system for data encryption and decryption 有权
    数据加密和解密的方法和系统

    公开(公告)号：US07194627B2

    公开(公告)日：2007-03-20

    申请号：US10414844

    申请日：2003-04-15

    申请人： Francis Cheung ,  Jason Monroe ,  Jay Kwok Wa Li ,  Kevin Patariu ,  Iue-Shuenn Chen

    发明人： Francis Cheung ,  Jason Monroe ,  Jay Kwok Wa Li ,  Kevin Patariu ,  Iue-Shuenn Chen

    IPC分类号： G06F1/24

    CPC分类号： G06F21/85

    摘要： An aspect of the of the invention may include the transfer of a block of data from a first memory location to a second memory location in a DRAM. During the transfer of the block of data from the first memory location, if an encryption mode is selected, the data may be buffered, encrypted, and then stored in the second memory location. If a decryption mode is selected, the transferred data may be buffered, decrypted and then stored in the second memory location. If a bypass mode is selected, the data may be buffered and then stored in the second memory location. In this regard, the encryption/decryption operations may be bypassed.

    摘要翻译： 本发明的一个方面可以包括将数据块从第一存储器位置传送到DRAM中的第二存储器位置。 在从第一存储器位置传送数据块期间，如果选择加密模式，则数据可以被缓冲，加密，然后存储在第二存储单元中。 如果选择解密模式，则传输的数据可以被缓冲，解密，然后存储在第二存储器位置。 如果选择旁路模式，则数据可能被缓冲，然后存储在第二存储器位置。 在这方面，可以绕过加密/解密操作。

    Method and system for data encryption and decryption
    2.
    发明授权
    Method and system for data encryption and decryption 有权
    数据加密和解密的方法和系统

    公开(公告)号：US08234504B2

    公开(公告)日：2012-07-31

    申请号：US10414575

    申请日：2003-04-15

    申请人： Francis Cheung ,  Jason Monroe ,  Kevin Patariu ,  Iue-Shuenn Chen ,  Cynthia Dang ,  Mark Taylor Core

    发明人： Francis Cheung ,  Jason Monroe ,  Kevin Patariu ,  Iue-Shuenn Chen ,  Cynthia Dang ,  Mark Taylor Core

    IPC分类号： G06F21/00

    CPC分类号： H04L9/0625 ,  H04L9/0894

    摘要： Certain embodiments of the invention provide a method and system for memory to bus interface data encryption and decryption. A method for memory to bus interface data encryption and decryption may include encrypting data by a encryption/decryption engine or processor and transferring the encrypted data across a first bus interface to a data processing and/or storage device coupled to the first bus interface. The encryption engine may receive encrypted data from a device coupled to the first bus interface and decrypt the received encrypted data. In this regard, unencrypted data never traverses across the first bus interface, and is thereby not accessible to devices coupled to the first bus interface. An encryption function and a decryption function associated with the encryption/decryption engine may be integrated within a bus adapter, for example, an IDE bus adapter.

    摘要翻译： 本发明的某些实施例提供了一种用于存储器到总线接口数据加密和解密的方法和系统。 用于存储器到总线接口数据加密和解密的方法可以包括通过加密/解密引擎或处理器对数据进行加密，并将经加密的数据跨越第一总线接口传送到耦合到第一总线接口的数据处理和/或存储设备。 加密引擎可以从耦合到第一总线接口的设备接收加密数据，并对接收到的加密数据进行解密。 在这方面，未加密的数据永远不会穿过第一总线接口，并且因此不能被耦合到第一总线接口的设备访问。 与加密/解密引擎相关联的加密功能和解密功能可以集成在总线适配器（例如，IDE总线适配器）内。

    Video processing system
    4.
    发明申请
    Video processing system 有权
    视频处理系统

    公开(公告)号：US20090074383A1

    公开(公告)日：2009-03-19

    申请号：US12292017

    申请日：2008-11-10

    申请人： Francis Cheung ,  Iue-Shuenn Chen ,  Ut Nguyen

    发明人： Francis Cheung ,  Iue-Shuenn Chen ,  Ut Nguyen

    IPC分类号： H04N5/91

    CPC分类号： H04N21/426 ,  H04N5/4401 ,  H04N5/46 ,  H04N7/035 ,  H04N21/4263 ,  H04N21/434 ,  H04N2005/91364

    摘要： The present invention is directed to a system for demultiplexing video signals that have been combined using a time division multiplexing approach. The system includes synchronizers, parsers, demultiplexers, and an input buffer. Each demultiplexer within the system includes a header detect module, a slot map module, a frame sync module and a packet accept module. The method includes the steps of receiving an input stream that contains data packets for more than one program channel that have been combined in which packet identification (PID) information is used and a time division multiplexing scheme, such as transport stream multiplexing format (TSMF) is used. The PID and slot location for each packet is analyzed. Based on the PID and slot location a packet is either accepted or rejected.

    摘要翻译： 本发明涉及一种用于解复用已经使用时分多路复用方法组合的视频信号的系统。 该系统包括同步器，解析器，解复用器和输入缓冲器。 系统内的每个解复用器包括报头检测模块，时隙映射模块，帧同步模块和分组接受模块。 该方法包括以下步骤：接收包含用于多个程序信道的数据分组的输入流，所述多个程序信道已被组合在使用分组标识（PID）信息的情况下，以及诸如传输流复用格式（TSMF）的时分复用方案， 用来。 分析每个数据包的PID和时隙位置。 基于PID和时隙位置，数据包被接受或拒绝。

    Method and system for co-relating transport packets on different channels using a cyclic redundancy check (CRC)
    6.
    发明授权
    Method and system for co-relating transport packets on different channels using a cyclic redundancy check (CRC) 失效
    使用循环冗余校验（CRC）在不同信道上共同传输分组的方法和系统

    公开(公告)号：US07346054B2

    公开(公告)日：2008-03-18

    申请号：US10391848

    申请日：2003-03-19

    申请人： Iue-Shuenn Chen ,  Rajesh Mamidwar ,  Francis Cheung ,  Xuemin Chen

    发明人： Iue-Shuenn Chen ,  Rajesh Mamidwar ,  Francis Cheung ,  Xuemin Chen

    IPC分类号： H04L12/56 ,  H04L12/28

    CPC分类号： H04N21/2358 ,  H04L12/2821 ,  H04N21/23605 ,  H04N21/23608 ,  H04N21/4343 ,  H04N21/631

    摘要： A first primary packet to create a second primary packet for a particular PID. Different CRC checksum may be generated for the first and the second primary packet. The first primary packet may be replicated in order to create a first secondary packet and the second primary packet may be replicated to create a second secondary packet. The CRC checksum for the primary packets may be stored within their corresponding secondary packets. In response to receipt of a new stream with replicated packets, the first or said second primary packet may be selected and the first or second secondary packet may be selected for a particular PID based on the generated CRC checksum. The selections may co-relate the selected first and/or second primary packet with a legacy system or the selected first and/or second secondary packet with a new system.

    摘要翻译： 用于为特定PID创建第二个主数据包的第一个主数据包。 可以为第一和第二主分组生成不同的CRC校验和。 可以复制第一主分组以便创建第一辅助分组，并且可以复制第二主分组以创建第二辅助分组。 主分组的CRC校验和可以存储在它们对应的次分组内。 响应于接收到具有复制分组的新流，可以选择第一或所述第二主分组，并且可以基于生成的CRC校验和为特定PID选择第一或第二辅助分组。 选择可以将所选择的第一和/或第二主分组与遗留系统或所选择的第一和/或第二次分组与新系统共同关联。

    System and method for demultiplexing video signals
    7.
    发明申请
    System and method for demultiplexing video signals 失效
    用于解复用视频信号的系统和方法

    公开(公告)号：US20050036515A1

    公开(公告)日：2005-02-17

    申请号：US10640682

    申请日：2003-08-14

    申请人： Francis Cheung ,  Iue-Shuenn Chen ,  Ut Nguyen

    发明人： Francis Cheung ,  Iue-Shuenn Chen ,  Ut Nguyen

    IPC分类号： H04N5/44 ,  H04N5/46 ,  H04N5/913 ,  H04J1/00 ,  H04H1/04

    CPC分类号： H04N21/426 ,  H04N5/4401 ,  H04N5/46 ,  H04N7/035 ,  H04N21/4263 ,  H04N21/434 ,  H04N2005/91364

    摘要： The present invention is directed to a system and method for demultiplexing video signals that have been combined using a time division multiplexing approach. The system includes synchronizers, parsers, demultiplexers, and an input buffer. Each demultiplexer within the system includes a header detect module, a slot map module, a frame sync module and a packet accept module. The method includes the steps of receiving an input stream that contains data packets for more than one program channel that have been combined in which packet identification (PID) information is used and a time division multiplexing scheme, such as transport stream multiplexing format (TSMF) is used. The PID and slot location for each packet is analyzed. Based on the PID and slot location a packet is either accepted or rejected.

    摘要翻译： 本发明涉及一种用于解复用已经使用时分多路复用方法组合的视频信号的系统和方法。 该系统包括同步器，解析器，解复用器和输入缓冲器。 系统内的每个解复用器包括报头检测模块，时隙映射模块，帧同步模块和分组接受模块。 该方法包括以下步骤：接收包含用于多个程序信道的数据分组的输入流，所述多个程序信道已被组合在使用分组标识（PID）信息的情况下，以及诸如传输流复用格式（TSMF）的时分复用方案， 用来。 分析每个数据包的PID和时隙位置。 基于PID和时隙位置，数据包被接受或拒绝。

    System and method for demultiplexing video signals
    8.
    发明授权
    System and method for demultiplexing video signals 失效
    用于解复用视频信号的系统和方法

    公开(公告)号：US07450617B2

    公开(公告)日：2008-11-11

    申请号：US10640682

    申请日：2003-08-14

    申请人： Francis Cheung ,  Iue-Shuenn Chen ,  Ut Nguyen

    发明人： Francis Cheung ,  Iue-Shuenn Chen ,  Ut Nguyen

    IPC分类号： H04J3/04

    CPC分类号： H04N21/426 ,  H04N5/4401 ,  H04N5/46 ,  H04N7/035 ,  H04N21/4263 ,  H04N21/434 ,  H04N2005/91364

    摘要： The present invention is directed to a system and method for demultiplexing video signals that have been combined using a time division multiplexing approach. The system includes synchronizers, parsers, demultiplexers, and an input buffer. Each demultiplexer within the system includes a header detect module, a slot map module, a frame sync module and a packet accept module. The method includes the steps of receiving an input stream that contains data packets for more than one program channel that have been combined in which packet identification (PID) information is used and a time division multiplexing scheme, such as transport stream multiplexing format (TSMF) is used. The PID and slot location for each packet is analyzed. Based on the PID and slot location a packet is either accepted or rejected.

    摘要翻译： 本发明涉及一种用于解复用已经使用时分多路复用方法组合的视频信号的系统和方法。 该系统包括同步器，解析器，解复用器和输入缓冲器。 系统内的每个解复用器包括报头检测模块，时隙映射模块，帧同步模块和分组接受模块。 该方法包括以下步骤：接收包含用于多个程序信道的数据分组的输入流，所述多个程序信道已被组合在使用分组标识（PID）信息的情况下，以及诸如传输流复用格式（TSMF）的时分复用方案， 用来。 分析每个数据包的PID和时隙位置。 基于PID和时隙位置，数据包被接受或拒绝。

    Method and system for random data access for security applications
    9.
    发明申请
    Method and system for random data access for security applications 有权
    用于安全应用的随机数据访问的方法和系统

    公开(公告)号：US20060195691A1

    公开(公告)日：2006-08-31

    申请号：US11069204

    申请日：2005-02-28

    申请人： Xuemin Chen ,  Iue-Shuenn Chen ,  Francis Cheung ,  Longyin Wei

    发明人： Xuemin Chen ,  Iue-Shuenn Chen ,  Francis Cheung ,  Longyin Wei

    IPC分类号： H04L9/00

    CPC分类号： H04L9/3239 ,  G06F21/71 ,  G06F21/79 ,  H04L9/3249

    摘要： Methods and systems for random data access for security applications are disclosed and may comprise generating on a chip, a random process index. A data process may be randomly selected on the chip utilizing the generated random process index. A time interval may be randomly allocated on the chip. After the time interval, the randomly selected data process may initiate processing of data. The processing of the data may comprise accessing the data and/or acquiring the data. The data may be verified by the selected data process prior to the processing of the data. The data may be verified utilizing a digital signature verification algorithm, for example.

    摘要翻译： 公开了用于安全应用的随机数据访问的方法和系统，并且可以包括在芯片上生成随机过程索引。 利用生成的随机过程索引可以在芯片上随机选择数据处理。 时间间隔可以随机分配在芯片上。 在时间间隔之后，随机选择的数据处理可以启动数据处理。 数据的处理可以包括访问数据和/或获取数据。 可以在数据处理之前通过所选择的数据处理来验证数据。 例如，可以使用数字签名验证算法来验证数据。