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20 条记录 (耗时 0.013 秒)

    Encryption system
    1.
    发明授权
    Encryption system 有权
    加密系统

    公开(公告)号：US08189786B2

    公开(公告)日：2012-05-29

    申请号：US11137272

    申请日：2005-05-25

    申请人： Raymond C. Hauge ,  Richard Lewis

    发明人： Raymond C. Hauge ,  Richard Lewis

    IPC分类号： H04L29/06

    CPC分类号： H04N7/1675 ,  G06F21/10 ,  G06F2221/2107 ,  H04L9/0662 ,  H04L9/0869 ,  H04L63/0428 ,  H04L2209/12 ,  H04L2209/605 ,  H04L2463/062 ,  H04N21/235 ,  H04N21/2362 ,  H04N21/23895 ,  H04N21/435 ,  H04N21/43853 ,  H04N21/47211

    摘要： One embodiment involves encrypting an MPEG transport stream by seeding a random number generator with a seed derived from at least a portion of the MPEG transport stream to produce a random number output. At least one program key and at least one modification key are generated from the random number output. At least portions of the MPEG transport stream are encrypted with the program key. At least one stored key is modified according to the modification key to produce a message segment key. The program key and the modification key are encrypted with the message segment key. The encrypted MPEG transport stream, the encrypted program key, and the encrypted modification key are multiplexed to form a multiplexed output.

    摘要翻译： 一个实施例涉及通过用从MPEG传输流的至少一部分导出的种子播种随机数生成器来产生随机数输出来加密MPEG传输流。 从随机数输出生成至少一个程序密钥和至少一个修改密钥。 MPEG节目密钥至少部分MPEG传输流被加密。 根据修改密钥修改至少一个存储的密钥以产生消息段密钥。 程序密钥和修改密钥用消息段密钥加密。 加密的MPEG传输流，加密的程序密钥和加密的修改密钥被多路复用以形成复用输出。

    Synchronous data link signal generator
    4.
    发明授权
    Synchronous data link signal generator 有权
    同步数据链路信号发生器

    公开(公告)号：US07310354B2

    公开(公告)日：2007-12-18

    申请号：US10198397

    申请日：2002-07-18

    申请人： Mark Fimoff ,  Raymond C. Hauge ,  Timothy G. Laud

    发明人： Mark Fimoff ,  Raymond C. Hauge ,  Timothy G. Laud

    IPC分类号： H04J3/00 ,  H04J3/02

    CPC分类号： H04N21/235 ,  H04J3/1682 ,  H04N21/23602 ,  H04N21/4342 ,  H04N21/435

    摘要： A synchronous data link signal is generated for supply between digital television equipment in a studio and an RF transmitter. The synchronous data link signal includes first data to be encoded at a first data rate, second data to be encoded at a second data rate less than the first data rate, and a map defining the relative amounts and placement of the encoded first and second data in the synchronous data link signal. The first data is in the form of first output data packets of a predetermined size. The second data and the map data are multiplexed so as to provide more than one second output data packet having the predetermined size. The first and second output data packets are then multiplexed so as to provide the synchronous data link signal.

    摘要翻译： 生成用于在演播室中的数字电视设备和RF发射机之间供应的同步数据链路信号。 同步数据链路信号包括要以第一数据速率编码的第一数据，要以小于第一数据速率的第二数据速率进行编码的第二数据，以及定义编码的第一和第二数据的相对量和位置的映射 在同步数据链路信号中。 第一数据是预定大小的第一输出数据包的形式。 第二数据和地图数据被多路复用以提供具有预定大小的多于一个的第二输出数据分组。 然后对第一和第二输出数据包进行多路复用以提供同步数据链路信号。

    VSB modulator symbol clock processing to reduce jitter/phase noise and sampling artifacts
    5.
    发明授权
    VSB modulator symbol clock processing to reduce jitter/phase noise and sampling artifacts 失效
    VSB调制器符号时钟处理，以减少抖动/相位噪声和采样伪影

    公开(公告)号：US06980255B2

    公开(公告)日：2005-12-27

    申请号：US10279319

    申请日：2002-10-24

    申请人： Raymond C. Hauge ,  Gary A. Jones ,  Philip J. Nowaczyk

    发明人： Raymond C. Hauge ,  Gary A. Jones ,  Philip J. Nowaczyk

    IPC分类号： H04N5/455 ,  H04N7/00 ,  H04L7/00

    CPC分类号： H04N5/455 ,  H04L27/02

    摘要： A translator demodulates a received digital television signal so as to produce a digital data stream, a symbol clock, and a byte clock, wherein the symbol clock and the byte clock are corrupted by phase noise. The digital data stream is written into a buffer in response to the corrupted byte clock. The corrupted symbol clock is applied to a frequency/phase locked loop having a narrowband loop filter. The frequency/phase locked loop produces a regenerated symbol clock having substantially no phase noise. The digital data stream is read from the buffer in response to the regenerated symbol clock. The digital data stream read from the buffer and the regenerated symbol clock are applied to a modulator for re-broadcasting of the received digital television signal.

    摘要翻译： 译码器解调所接收的数字电视信号，以产生数字数据流，符号时钟和字节时钟，其中符号时钟和字节时钟被相位噪声破坏。 响应于损坏的字节时钟，将数字数据流写入缓冲器。 损坏的符号时钟被施加到具有窄带环路滤波器的频率/锁相环路。 频率/锁相环产生基本上没有相位噪声的再生符号时钟。 响应于再生的符号时钟，从缓冲器读取数字数据流。 从缓冲器和再生的符号时钟读取的数字数据流被应用于用于重新广播所接收的数字电视信号的调制器。

    Encryption/decryption of program data but not PSI data
    7.
    发明授权
    Encryption/decryption of program data but not PSI data 有权
    程序数据的加密/解密，而不是PSI数据

    公开(公告)号：US08144868B2

    公开(公告)日：2012-03-27

    申请号：US11342479

    申请日：2006-01-30

    申请人： Raymond C. Hauge ,  Richard Lewis ,  Rudolf Turner

    发明人： Raymond C. Hauge ,  Richard Lewis ,  Rudolf Turner

    IPC分类号： H04N7/167

    CPC分类号： H04N7/1675 ,  H04N21/2347 ,  H04N21/23476 ,  H04N21/2362 ,  H04N21/26606 ,  H04N21/4345 ,  H04N21/4405 ,  H04N21/44055 ,  H04N21/835

    摘要： At a transmitter, a program is encrypting according to a one program key, the program key is encrypted, and the encrypted program, the encrypted program key, and non-encrypted PSI data to a receiver are transmitted. At a receiver, the encrypted program, the encrypted program key, and the non-encrypted PSI data are received, the encrypted program key is decrypted, the encrypted program is located according to the non-encrypted PSI data, and the located encrypted program is decrypted according to decrypted program key.

    摘要翻译： 在发射机上，程序根据一个程序密钥进行加密，程序密钥被加密，并且将加密的程序，加密的程序密钥和未加密的PSI数据传送到接收器。 在接收机处，接收到加密程序，加密程序密钥和未加密的PSI数据，加密的程序密钥被解密，加密的程序根据未加密的PSI数据被定位，并且所定位的加密程序是 根据解密的程序密钥解密。

    Rotation of keys during encryption/decryption
    9.
    发明授权
    Rotation of keys during encryption/decryption 有权
    加密/解密期间密钥的旋转

    公开(公告)号：US07936870B2

    公开(公告)日：2011-05-03

    申请号：US11342460

    申请日：2006-01-30

    申请人： Raymond C. Hauge ,  Richard Lewis ,  Rudolf Turner

    发明人： Raymond C. Hauge ,  Richard Lewis ,  Rudolf Turner

    IPC分类号： H04L9/30

    CPC分类号： H04N7/1675 ,  G06F21/10 ,  G06F2221/2107 ,  H04L9/0662 ,  H04L9/0869 ,  H04L63/0428 ,  H04L2209/12 ,  H04L2209/605 ,  H04L2463/062 ,  H04N21/235 ,  H04N21/2362 ,  H04N21/23895 ,  H04N21/435 ,  H04N21/43853 ,  H04N21/47211

    摘要： Data is encrypted according to a plurality of data keys. During the encryption of the data, the data keys are rotated according to a data key rotation pattern, and the rotation of the data keys includes repetitive use of the data keys during the encryption of the data. The encrypted data is transmitted to a receiver. Additionally or alternatively, encrypted data is received from a transmitter. The encrypted data is decrypted according to a plurality of data keys. During the decryption of the encrypted data, the data keys are rotated according to a data key rotation pattern, and the rotating of the data keys includes repetitive use of the data keys during the decryption of the encrypted data.

    摘要翻译： 根据多个数据密钥对数据进行加密。 在数据加密期间，数据密钥根据数据密钥旋转模式旋转，并且数据密钥的旋转包括在数据加密期间重复使用数据密钥。 加密数据被发送到接收机。 附加地或替代地，从发射机接收加密的数据。 加密数据根据多个数据密钥进行解密。 在加密数据的解密期间，数据密钥根据数据密钥旋转模式旋转，并且数据密钥的旋转包括在加密数据的解密期间重复使用数据密钥。

    Key management system
    10.
    发明授权
    Key management system 有权
    密钥管理系统

    公开(公告)号：US08345877B2

    公开(公告)日：2013-01-01

    申请号：US12623121

    申请日：2009-11-20

    申请人： Raymond C. Hauge ,  Richard Lewis

    发明人： Raymond C. Hauge ,  Richard Lewis

    IPC分类号： H04L29/06

    CPC分类号： H04N7/1675 ,  G06F21/10 ,  G06F2221/2107 ,  H04L9/0662 ,  H04L9/0869 ,  H04L63/0428 ,  H04L2209/12 ,  H04L2209/605 ,  H04L2463/062 ,  H04N21/235 ,  H04N21/2362 ,  H04N21/23895 ,  H04N21/435 ,  H04N21/43853 ,  H04N21/47211

    摘要： In a transmitter, data is encrypted by use of a data key, the data key is encrypted based on a first modification key, and the first modification key is encrypted based on a second modification key such that the first and second modification keys are different keys. The encrypted data, the encrypted data key, and the encrypted first modification key are transmitted to a receiver. In the receiver, the encrypted first modification key, the encrypted data key, and the encrypted data are received from the transmitter. The encrypted first modification key is decrypted based on the second modification key, the encrypted data key is decrypted based on the decrypted first modification key, and the encrypted data is decrypted by use of the decrypted data key.

    摘要翻译： 在发射机中，通过使用数据密钥对数据进行加密，基于第一修改密钥对数据密钥进行加密，并且第一修改密钥基于第二修改密钥被加密，使得第一和第二修改密钥是不同的密钥 。 加密数据，加密数据密钥和加密的第一修改密钥被发送到接收器。 在接收机中，从发送器接收加密的第一修改密钥，加密数据密钥和加密数据。 基于第二修改密钥对加密的第一修改密钥进行解密，基于解密的第一修改密钥对加密数据密钥进行解密，并且使用解密的数据密钥解密加密数据。