DIGITAL RIGHTS MANAGEMENT WITH IRREGULAR NETWORK ACCESS
    71.
    发明申请
    DIGITAL RIGHTS MANAGEMENT WITH IRREGULAR NETWORK ACCESS 有权
    数字权限管理与非法网络访问

    公开(公告)号:US20110289592A1

    公开(公告)日:2011-11-24

    申请号:US13113590

    申请日:2011-05-23

    IPC分类号: G06F17/30

    CPC分类号: G06F21/10 G06F2221/2135

    摘要: There is a performing of digital rights management (DRM), operable in an offline mode with respect to a communications network. The performing includes identifying a stored rights object associated with a stored asset. The stored rights object includes reporting duration information associated with the stored asset. The performing also includes determining, utilizing a processor, whether a transmission of an early status message is a successful communication based on an early status message determination. If a failure in communicating the early status message is determined, utilizing the stored asset. The performing may also include transmitting an early status message and/or later status message after identifying the stored rights object. There is also a performing of digital rights management (DRM) associated with a DRM system and operable in an offline mode with respect to a communications network. There are also client devices, communicating systems, computer readable mediums and protocols.

    摘要翻译: 数字版权管理(DRM)的执行可以在通信网络的离线模式下操作。 执行包括识别与存储的资产相关联的存储的权利对象。 存储的权利对象包括与存储的资产相关联的报告持续时间信息。 执行还包括基于早期状态消息确定来确定利用处理器是否早期状态消息的传输是成功的通信。 如果确定了早期状态消息的通信失败,则利用存储的资产。 执行还可以包括在识别所存储的权利对象之后发送早期状态消息和/或后续状态消息。 还存在与DRM系统相关联的数字权限管理(DRM)的执行,并且可以以关于通信网络的离线模式操作。 还有客户端设备,通信系统,计算机可读介质和协议。

    Network attached DVR storage
    72.
    发明申请
    Network attached DVR storage 有权
    网络连接DVR存储

    公开(公告)号:US20110213856A1

    公开(公告)日:2011-09-01

    申请号:US12874825

    申请日:2010-09-02

    申请人: Paul Moroney

    发明人: Paul Moroney

    IPC分类号: G06F15/16

    摘要: A host device, which may include a DVR, selects to record content on the host device DVR or in a network attached storage (NAS) unit. The recorded content remains bound to the host device from a DRM perspective when it is recorded on the host DVR and on the remotely located NAS. A client device can obtain access to content recorded on the NAS by negotiating DRM rights with the host device instead of the NAS. When access rights are approved, the host device provides access information to the client device so that the content is streamed directly to the client device from the NAS.

    摘要翻译: 可以包括DVR的主机设备选择在主机设备DVR或网络连接存储(NAS)单元中记录内容。 当记录在主机DVR和位于远端的NAS时,所记录的内容从DRM的角度保持绑定到主机设备。 通过与主机设备而不是NAS协商DRM权限,客户端设备可以获得对记录在NAS上的内容的访问。 当访问权限被批准时,主机设备向客户端设备提供访问信息,使得内容从NAS直接流传送到客户端设备。

    FULL RESOLUTION 3D VIDEO WITH 2D BACKWARD COMPATIBLE SIGNAL
    73.
    发明申请
    FULL RESOLUTION 3D VIDEO WITH 2D BACKWARD COMPATIBLE SIGNAL 审中-公开
    全解析3D视频与2D后向兼容信号

    公开(公告)号:US20110176616A1

    公开(公告)日:2011-07-21

    申请号:US13011523

    申请日:2011-01-21

    IPC分类号: H04N7/12

    摘要: Items are used to encode or in encoding a stereoscopic video signal. The signal includes first view frames based on a first view associated with a first eye perspective and second view frames based on a second view associated with a second eye perspective. The encoding includes receiving the stereoscopic video signal and determining the first view frames and the second view frames. The encoding also includes encoding the first view frames based on the first view and encoding the second view frames based on the second view and also the first view. In the encoding, a plurality of the encoded second view frames reference at least one first view frame for predictive coding information. Items are also used to decode the encoded stereoscopic video signal.

    摘要翻译: 项目用于对立体视频信号进行编码或编码。 信号包括基于与第一眼睛透视图相关联的第一视图的第一视图帧和基于与第二眼睛透视图相关联的第二视图的第二视图帧。 编码包括接收立体视频信号并确定第一视图帧和第二视图帧。 编码还包括基于第一视图对第一视图帧进行编码,并且基于第二视图以及第一视图对第二视图帧进行编码。 在编码中,多个编码的第二视图帧引用用于预测编码信息的至少一个第一视图帧。 项目也用于解码经编码的立体视频信号。

    Multiple level public key hierarchy for performance and high security
    74.
    发明授权
    Multiple level public key hierarchy for performance and high security 有权
    多级公钥层次结构,性能高,安全性高

    公开(公告)号:US07929701B1

    公开(公告)日:2011-04-19

    申请号:US10049812

    申请日:2000-01-28

    IPC分类号: H04L9/00 H04L29/06

    摘要: Multiple public/private key pairs of varying levels of security are used to provide a high level of security while still allowing fast processing of encrypted information. The lower-security level includes keys that are small in length, that are changed relatively often, and that require less or fewer resources to implement their functions. When it is required to change key pairs of low security, a key pair at a higher security level (i.e., longer length keys) than the lower-security level keys is used to transfer the new lower-security public keys to devices using those keys. The higher-security keys can, in turn, be changed at a frequency lower than the lower-security keys. The higher-security keys require a higher level of resources to perform their coding operations. This approach of using keys of escalating levels of security to replace lower-security keys, where the higher-security keys require more resources, are more secure, and are replaced less often than the lower-security keys, can be followed as many times as is desired to create a hierarchy of public key uses with the result that the lower-security operations can be performed quickly while the overall system security is high.

    摘要翻译: 使用不同级别的安全性的多个公钥/私钥对来提供高水平的安全性,同时仍然允许加密信息的快速处理。 较低安全级别包括长度较小的密钥,相对频繁地更改,并且需要较少或较少的资源来实现其功能。 当需要更改低安全性的密钥对时,使用比较低安全级别密钥更高的安全级别的密钥对(即较长的密钥)将新的较低安全性的公钥传输到使用这些密钥的设备 。 更高安全性的密钥又可以以低于较低安全密钥的频率进行更改。 较高安全性的密钥需要更高级别的资源来执行编码操作。 使用升级级别的安全性的密钥替代较低安全性密钥(其中较高安全性密钥需要更多资源)的方法更安全,并且被替换的次数低于较低安全密钥,可以跟随多次 需要创建公共密钥使用的层次结构,结果是可以在整个系统安全性较高的情况下快速执行较低安全性的操作。

    COMMUNICATING A DEVICE DESCRIPTOR BETWEEN TWO DEVICES WHEN REGISTERING ONTO A NETWORK
    75.
    发明申请
    COMMUNICATING A DEVICE DESCRIPTOR BETWEEN TWO DEVICES WHEN REGISTERING ONTO A NETWORK 有权
    在注册到网络时通信两台设备之间的设备描述符

    公开(公告)号:US20100325654A1

    公开(公告)日:2010-12-23

    申请号:US12816817

    申请日:2010-06-16

    IPC分类号: H04N7/16 H04L9/32

    摘要: A method for registering a first device with a second device over a wireless network includes receiving a registration request from the first device and sending one or more user input choices to the first device. The user input choices each specify a user input action available though a user interface associated with the second device. A device description describing the second device is sent to the first device in a manner that allows it to be presented to the user by the first device. At least one of the user input actions are sequentially received through the user interface in response to instructions provided to the user by the first device. The first device is registered with the second device if the user input actions received by the second device correctly reflect the instructions provided to the user by the first device.

    摘要翻译: 用于通过无线网络向第二设备注册第一设备的方法包括从第一设备接收注册请求并向第一设备发送一个或多个用户输入选择。 用户输入选择各自通过与第二设备相关联的用户界面来指定可用的用户输入动作。 描述第二设备的设备描述以允许其由第一设备呈现给用户的方式被发送到第一设备。 响应于由第一设备提供给用户的指令,通过用户界面顺序地接收至少一个用户输入动作。 如果由第二设备接收的用户输入动作正确地反映由第一设备提供给用户的指令,则第一设备被注册到第二设备。

    Method and apparatus for authenticating data
    76.
    发明申请
    Method and apparatus for authenticating data 审中-公开
    用于认证数据的方法和装置

    公开(公告)号:US20050071640A1

    公开(公告)日:2005-03-31

    申请号:US10796712

    申请日:2004-03-09

    IPC分类号: H04L9/08 H04L9/32 H04L9/00

    摘要: A method for authenticating a string of data stored remotely from the processor. A bifurcated hash routine can be utilized to provide a check root along with a putative new root for a revised string of data. The check root can be compared with the previously determined initial root. If the check root matches the initial root, the new root is accepted in view of the fact that it was computed concurrently with the check root.

    摘要翻译: 一种用于认证从处理器远程存储的数据串的方法。 可以使用分叉哈希例程来为经修改的数据串提供检查根和推定的新根。 检查根可以与先前确定的初始根进行比较。 如果检查根与初始根匹配,则根据与检查根同时计算的事实,新的根被接受。

    Variable security code download for an embedded processor
    77.
    发明授权
    Variable security code download for an embedded processor 有权
    用于嵌入式处理器的可变安全代码下载

    公开(公告)号:US06711684B1

    公开(公告)日:2004-03-23

    申请号:US09394765

    申请日:1999-09-13

    IPC分类号: G06F1214

    摘要: Methods and an apparatus for storing information in a processing device with flexible security are disclosed. In one embodiment, a method stores information within the processing device. The method receives a download via a first input path which includes a first breakable link and stores the download within the processing device. At some point, a key is also stored within the processing device. A ciphertext download is received via a second input path which includes a second breakable link. The ciphertext download is decrypted utilizing the key and the resulting plaintext download is stored within the processing device.

    摘要翻译: 公开了一种在具有灵活安全性的处理设备中存储信息的方法和装置。 在一个实施例中,方法将信息存储在处理设备内。 该方法经由包括第一可破坏链路的第一输入路径接收下载,并将该下载存储在处理设备内。 在某一点上,密钥也存储在处理设备内。 经由包括第二可破坏链路的第二输入路径接收密文下载。 使用密钥对密文下载进行解密,并将所得到的明文下载存储在处理设备内。

    Apparatus and methods for transcoder-based adaptive quantization
    78.
    发明授权
    Apparatus and methods for transcoder-based adaptive quantization 有权
    用于基于代码转换器的自适应量化的装置和方法

    公开(公告)号:US06441754B1

    公开(公告)日:2002-08-27

    申请号:US09642925

    申请日:2000-08-17

    IPC分类号: H03M700

    摘要: The present invention provides a transcoding architecture and a consumer set-top box with storage capability that is based on the transcoding architecture and capable of operating efficiently in an all-digital environment. In a preferred embodiment, a digital-VIDEO DEVICE employs an MPEG-2 compliant transcoder that includes a simplified cascaded decoder and encoder, and is capable of performing determinable bitrate re-encoding without conducting motion estimation. During recording, the decoder receives and processes a compressed source bitstream, producing a decoded bitstream that includes reconstructed video and preserved motion vectors. The encoder “re-encodes” the decoded bitstream using the preserved motion vectors and performs any applicable bitrate modifications. The re-encoded bitstream is then stored.

    摘要翻译: 本发明提供一种具有存储能力的代码转换架构和消费者机顶盒,其基于代码转换架构并且能够在全数字环境中有效地运行。 在优选实施例中,数字视频设备采用符合MPEG-2的代码转换器,其包括简化的级联解码器和编码器,并且能够执行可确定的比特率重新编码而不进行运动估计。 在记录期间,解码器接收并处理压缩源比特流,产生包括重构的视频和保存的运动矢量的解码比特流。 编码器使用保留的运动矢量对解码的比特流进行“重新编码”,并执行任何适用的比特率修改。 然后存储重新编码的比特流。

    Generation of cryptographic signatures using hash keys
    79.
    发明授权
    Generation of cryptographic signatures using hash keys 失效
    使用散列键生成加密签名

    公开(公告)号:US5754659A

    公开(公告)日:1998-05-19

    申请号:US577922

    申请日:1995-12-22

    摘要: A method and apparatus are provided for generating a digital signature that authenticates information of a plurality of different information groups. Information from each group is hashed to produce a separate hash key for each group authenticating the information in that group. Particular combinations of the hash keys are hashed together to produce at least one combined hash key. Each of the hash keys is ultimately combined in a predetermined order with all other hash keys via the combined hash keys to produce the digital signature in a manner that authenticates the information of all of the information groups. The digital signature is reproducible without access to all of the information groups authenticated thereby. Instead, information from a first information group is provided together with a set of hash keys and combined hash keys embodying authenticated information from the other groups. The hash key for the first information group is produced locally and combined with the other hash keys and/or combined hash keys in order to reproduce the digital signature.

    摘要翻译: 提供了一种方法和装置,用于产生认证多个不同信息组的信息的数字签名。 来自每个组的信息被散列以产生用于认证该组中的信息的每个组的单独的散列密钥。 哈希密钥的特定组合被散列在一起以产生至少一个组合的散列密钥。 每个散列密钥最终通过组合的散列密钥以预定顺序与所有其他散列密钥组合,以便以认证所有信息组的信息的方式产生数字签名。 数字签名是可重复的,无需访问由此认证的所有信息组。 相反,来自第一信息组的信息与体现来自其他组的认证信息的一组散列密钥和组合散列密钥一起提供。 用于第一信息组的散列密钥本地产生并与其它散列密钥和/或组合散列密钥组合以便再现数字签名。

    Error detection and recovery for high rate isochronous data in MPEG-2
data streams
    80.
    发明授权
    Error detection and recovery for high rate isochronous data in MPEG-2 data streams 失效
    MPEG-2数据流中高速同步数据的错误检测和恢复

    公开(公告)号:US5742623A

    公开(公告)日:1998-04-21

    申请号:US678108

    申请日:1996-07-11

    摘要: Error recovery is provided for isochronous data ("isodata") obtained from a data stream. Isodata transport packets are monitored to locate isodata presentation time stamps (PTSs). The presentation of isodata from a buffer is synchronized to a system time clock (STC) using timing information derived from the PTSs. Discontinuity errors between said isodata transport packets are identified and, if a discontinuity of no more than one packet is identified, a write pointer of the buffer is advanced by a suitable number of bits to compensate for the discontinuity, while maintaining the synchronization of the presentation with respect to the STC. Additional error detection and recovery techniques are disclosed, including the maintenance of a presentation unit counter, the use of a PTE extension and PTS offset to verify output timing, the provision of a pair of PTS pointers verifying correct output data timing, the use of a packet elementary stream (PES) count to detect lost data in the transport stream, and the detection and discarding of packets designated as encrypted after any decryption should have already been completed.

    摘要翻译: 为从数据流获取的同步数据(“isodata”)提供错误恢复。 监视Isodata传输数据包以查找isodata演示时间戳(PTS)。 使用从PTS导出的定时信息将来自缓冲器的isodata的呈现同步到系统时钟(STC)。 识别所述异点传输分组之间的不连续性错误,并且如果识别出不超过一个分组的不连续性,则缓冲器的写指针将以适当数量的比特前进,以补偿不连续性,同时保持呈现的同步 对于STC。 公开了附加的错误检测和恢复技术,包括维护表示单元计数器,使用PTE扩展和PTS偏移来验证输出定时,提供验证正确的输出数据定时的一对PTS指针,使用 分组基本流(PES)计数以检测传输流中的丢失数据,并且在任何解密之后指定为加密的分组的检测和丢弃应该已经完成​​。