利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

57 条记录 (耗时 0.028 秒)

    Logical and composite channel mapping in an MPEG network
    41.
    发明授权
    Logical and composite channel mapping in an MPEG network 失效
    MPEG网络中的逻辑和复合频道映射

    公开(公告)号：US5600378A

    公开(公告)日：1997-02-04

    申请号：US446322

    申请日：1995-05-22

    申请人： Anthony J. Wasilewski

    发明人： Anthony J. Wasilewski

    IPC分类号： H04H20/00 ,  H04H20/28 ,  H04H60/39 ,  H04L12/70 ,  H04N5/44 ,  H04N5/50 ,  H04N7/08 ,  H04N7/081 ,  H04N7/088 ,  H04N7/10 ,  H04N7/173 ,  H04N21/2362 ,  H04N21/438 ,  H04N21/4385 ,  H04N7/00

    CPC分类号： H04N21/4383 ,  H04N21/2362 ,  H04N21/4345 ,  H04N21/482 ,  H04N5/4401 ,  H04N7/0887 ,  H04N7/10 ,  H04N5/50

    摘要： Two additional structures for addition to the Digital Video Broadcasters (DVB) Service Information (SI) for implementation of the MPEG-2 Systems Standard (ISO/IEC 13818-1 are provided: the Logical Channel Table (LCT) and the Composite Channel Table (CCT). The LCT provides the mapping between a Logical Channel Number (LCN) representing a service and the transport stream/program number on which the service can be found. LCT entries may designate either simple conventional channels or Composite Channels. The LCT contains a Composite Channel Indicator (CCI), which when set to `1`, indicates that the selected channel is a composite channel. In this case, the LCT entry gives the home channel of the Composite Channel, which provides the CCT to the decoder so that the tuner can be retuned to the actual program designated in the CCT for current viewing. Each entry in the CCT associates a Composite Channel Number (CCN) with a LCN and represents the "present" definition for the composite channel. A simple LCN is used as a key to the LCT to determine the transport stream ID and program number for the service components in the usual way. As time progresses, the entry for a specific CCN will change; therefore, the CCN is used as a "pointer" to the LCN which is the currently active service for the composite channel. These tables work with conventional MPEG-2 service definitions to decode multi-service transport streams.

    摘要翻译： 提供了用于实现MPEG-2系统标准（ISO / IEC 13818-1）的数字视频广播（DVB）服务信息（SI）的两个附加结构：逻辑信道表（LCT）和复合信道表 CCT），LCT提供表示服务的逻辑信道号（LCN）与可以在其上发现业务的传输流/节目号码之间的映射，LCT条目可以指定简单的常规信道或复合信道，LCT包含 复合信道指示符（CCI）当被设置为'1'时，指示所选择的信道是复合信道，在这种情况下，LCT条目给出复合信道的归属信道，其将CCT提供给解码器，使得 调谐器可以重新转移到CCT中指定的实际程序，以便当前查看。CCT中的每个条目将复合通道号（CCN）与LCN相关联，并表示复合通道的“当前”定义。 使用简单的LCN作为LCT的关键，以通常的方式确定服务组件的传输流ID和程序编号。 随着时间的推移，特定CCN的条目将会改变; 因此，CCN被用作作为组合信道的当前活动服务的LCN的“指针”。 这些表适用于传统的MPEG-2服务定义来解码多业务传输流。

    Retrieval and transfer of encrypted hard drive content from DVR set-top boxes
    45.
    发明授权
    Retrieval and transfer of encrypted hard drive content from DVR set-top boxes 有权
    从DVR机顶盒检索和传输加密的硬盘驱动器内容

    公开(公告)号：US07630499B2

    公开(公告)日：2009-12-08

    申请号：US10920926

    申请日：2004-08-18

    申请人： Anthony J. Wasilewski

    发明人： Anthony J. Wasilewski

    IPC分类号： H04L9/08 ,  H04N7/167

    CPC分类号： H04N21/4147 ,  H04N5/913 ,  H04N7/162 ,  H04N21/4334 ,  H04N21/4405 ,  H04N21/4408 ,  H04N21/4623 ,  H04N21/4627 ,  H04N2005/91364

    摘要： A system and method for retrieval and transfer of encrypted content from a failed set-top box. When content is recorded to the storage device of a set-top box, the content is encrypted with a content instance key. This content instance key is encrypted with the public key of the set-top box and a duplicate of the content instance key is encrypted by another public key other than the public key of the set-top. In the event the set-top fails, the encrypted content on the storage device may be retrieved from the storage device by decrypting the duplicate content instance key with the private key that corresponds with the public key that encrypted the duplicate of the content instance key.

    摘要翻译： 用于从发生故障的机顶盒中检索和传送加密内容的系统和方法。 当内容被记录到机顶盒的存储设备时，内容被内容实例密钥加密。 该内容实例密钥用机顶盒的公开密钥加密，并且内容实例密钥的副本被除了机顶盒的公开密钥之外的另一个公钥加密。 在机顶盒发生故障的情况下，可以通过用与加密内容实例密钥的副本的公开密钥相对应的专用密钥解密重复的内容实例密钥来从存储设备检索存储设备上的加密内容。

    Utilization of encrypted hard drive content by one DVR set-top box when recorded by another
    46.
    发明授权
    Utilization of encrypted hard drive content by one DVR set-top box when recorded by another 失效
    由另一台DVR机顶盒利用加密的硬盘驱动器内容

    公开(公告)号：US07602914B2

    公开(公告)日：2009-10-13

    申请号：US10920842

    申请日：2004-08-18

    申请人： Anthony J. Wasilewski

    发明人： Anthony J. Wasilewski

    IPC分类号： H04N7/167

    CPC分类号： H04N21/4147 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00282 ,  H04N21/4405 ,  H04N21/4408

    摘要： A system and method for encrypting and recording content to removable storage media for use by multiple set-tops. When content is recorded to the storage media, the content is encrypted with a content instance key. This content instance key is encrypted with the public key of one set-top box and a duplicate of the content instance key is encrypted with the public key of another set-top box. Either set-top box may decrypt the content instance key with the private key that corresponds with its public key so that the encrypted content from the removable storage media may be made available in the clear.

    摘要翻译： 用于将内容加密和记录到可移动存储介质以供多个机顶盒使用的系统和方法。 当内容被记录到存储介质时，内容是用内容实例密钥加密的。 该内容实例密钥用一个机顶盒的公共密钥加密，并且内容实例密钥的副本用另一个机顶盒的公钥加密。 机顶盒可以用与其公钥相对应的私钥对内容实例密钥进行解密，使得来自可移动存储介质的加密内容可以被清除。

    Retrieval and transfer of encrypted hard drive content from DVR set-top box utilizing second DVR set-top box
    47.
    发明授权
    Retrieval and transfer of encrypted hard drive content from DVR set-top box utilizing second DVR set-top box 有权
    使用第二台DVR机顶盒从DVR机顶盒检索和传输加密的硬盘驱动器内容

    公开(公告)号：US07602913B2

    公开(公告)日：2009-10-13

    申请号：US10920841

    申请日：2004-08-18

    申请人： Anthony J. Wasilewski

    发明人： Anthony J. Wasilewski

    IPC分类号： H04N7/167

    CPC分类号： H04N21/4104 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00282 ,  H04N5/913 ,  H04N7/1675 ,  H04N21/4147 ,  H04N21/4367 ,  H04N21/4405 ,  H04N2005/91364

    摘要： A system and method for retrieval and transfer of encrypted content from a first set-top box utilizing a second set-top box. When content is recorded to the storage device of the first set-top box, the content is encrypted with a content instance key. This content instance key is encrypted with the public key of the first set-top box and a duplicate of the content instance key is encrypted by the public key of the second set-top box. The encrypted content on the storage device may be retrieved by decrypting the duplicate content instance key with the private key that corresponds with the public key of the second set-top box that encrypted the duplicate of the content instance key.

    摘要翻译： 一种利用第二机顶盒从第一机顶盒检索和传送加密内容的系统和方法。 当内容被记录到第一机顶盒的存储设备时，内容被内容实例密钥加密。 该内容实例密钥用第一机顶盒的公钥加密，并且内容实例密钥的副本被第二机顶盒的公钥加密。 可以通过用与加密内容实例密钥的副本的第二机顶盒的公钥相对应的私钥来解密重复内容实例密钥来检索存储设备上的加密内容。