Method and system for temporal synchronization
    81.
    发明授权
    Method and system for temporal synchronization 有权
    时间同步的方法和系统

    公开(公告)号:US08331609B2

    公开(公告)日:2012-12-11

    申请号:US12309372

    申请日:2006-12-08

    IPC分类号: G06K9/00

    CPC分类号: G06T1/005 G06T2201/0065

    摘要: Embodiments of the present invention provide a method, apparatus and system for temporal synchronization of digital content based on a marker symbol and a marker code. A marker symbol is inserted at an identifiable location of a payload (e.g., the beginning and/or end of a payload) at regular intervals in the digital content and the payload is marker coded to form a periodic sequence. The payload is marker coded such that the maker symbol is not repeated by the coded payload. The periodic sequence is then embedded into digital content. A decoder is able to re-synchronize the payload by determining the location of the marker symbol. As such, a method, apparatus and system is provided for robust temporal synchronization for, for example, content encoding and decoding for applications such as audio and video water-marking and the like.

    摘要翻译: 本发明的实施例提供了一种基于标记符号和标记码的数字内容的时间同步的方法,装置和系统。 在数字内容中以规则的间隔将标记符号插入有效载荷的可识别位置(例如,有效负载的开始和/或结束),并且有效载荷被标记编码以形成周期性序列。 有效载荷是标记编码的,使得制造商符号不被编码的有效载荷重复。 然后将周期序列嵌入到数字内容中。 解码器能够通过确定标记符号的位置来重新同步有效载荷。 因此,提供了用于例如音频和视频水印等应用的内容编码和解码的鲁棒时域同步的方法,装置和系统。

    Compressed Domain Video Watermarking
    83.
    发明申请
    Compressed Domain Video Watermarking 有权
    压缩域视频水印

    公开(公告)号:US20120076206A1

    公开(公告)日:2012-03-29

    申请号:US13198371

    申请日:2011-08-04

    IPC分类号: H04N7/32 H04N7/24 H04N7/26

    摘要: In accordance with an embodiment, a method of watermarking encoded video frames includes electronically receiving a bitstream comprising a plurality of encoded video frames that are divided into a plurality of macro-blocks, determining macro-block dependencies based on prediction information in the received bitstream, determining a set of macro-blocks having a minimal number of macro-block dependencies, and embedding a watermark in a plurality of macro-blocks selected from the set of macro-blocks having the minimal number of macro-block dependencies.

    摘要翻译: 根据实施例,一种对编码视频帧进行水印处理的方法包括电子地接收包含被划分成多个宏块的多个编码视频帧的比特流,基于接收的比特流中的预测信息确定宏块依赖性, 确定具有最小数量的宏块相关性的一组宏块,以及将水印嵌入从具有最少数量的宏块依赖性的宏组中选择的多个宏块中。

    Media Processing Devices With Joint Encryption-Compression, Joint Decryption-Decompression, And Methods Thereof
    85.
    发明申请
    Media Processing Devices With Joint Encryption-Compression, Joint Decryption-Decompression, And Methods Thereof 审中-公开
    具有联合加密压缩,联合解密 - 解压缩及其方法的媒体处理设备

    公开(公告)号:US20110191587A1

    公开(公告)日:2011-08-04

    申请号:US13015308

    申请日:2011-01-27

    IPC分类号: H04L9/32

    CPC分类号: H04L9/32

    摘要: In one embodiment, a method of adaptive media streaming includes receiving a cipher media stream at a media device. The cipher media stream is compliant with a media compression standard. The cipher media stream is decrypted and decoded using an inverse stream cipher algorithm and a compressed media stream is generated by combining the cipher media stream with a keystream.

    摘要翻译: 在一个实施例中,自适应媒体流的方法包括在媒体设备处接收加密媒体流。 密码媒体流符合媒体压缩标准。 使用逆流密码算法对密码媒体流进行解密和解码,并通过将密码媒体流与密钥流组合来生成压缩媒体流。

    Media Processing Devices For Adaptive Delivery Of On-Demand Media, And Methods Thereof
    86.
    发明申请
    Media Processing Devices For Adaptive Delivery Of On-Demand Media, And Methods Thereof 有权
    用于按需传递的自适应传送的媒体处理设备及其方法

    公开(公告)号:US20110191577A1

    公开(公告)日:2011-08-04

    申请号:US13016721

    申请日:2011-01-28

    IPC分类号: H04L9/00

    CPC分类号: H04L9/00

    摘要: In one embodiment, a method of streaming media includes partitioning a media stream to be transmitted into a first stream of media segments at a media server. The first stream of the media segments has a first sequence. An index table is generated to identify the first sequence of the first stream of the media segments. The index table is encrypted using a key. A second stream of the media segments is generated. The second stream has a second sequence, which is random relative to the first sequence. The encrypted index table and a transcoded media stream having the second stream of the media segments are transmitted.

    摘要翻译: 在一个实施例中,流媒体的方法包括将要发送的媒体流划分成媒体服务器处的媒体片段的第一流。 媒体片段的第一个流具有第一个序列。 生成索引表以识别媒体段的第一个流的第一个序列。 索引表使用密钥进行加密。 生成媒体片段的第二个流。 第二个流具有相对于第一个序列是随机的第二个序列。 发送加密索引表和具有媒体段的第二流的转码媒体流。

    Voltage tester
    88.
    外观设计

    公开(公告)号:USD629319S1

    公开(公告)日:2010-12-21

    申请号:US29362796

    申请日:2010-06-01

    申请人: Jun Tian

    设计人: Jun Tian

    Oxazolidinium compounds and use as hydrate inhibitors
    90.
    发明授权
    Oxazolidinium compounds and use as hydrate inhibitors 有权
    恶唑烷鎓化合物,并用作水合物抑制剂

    公开(公告)号:US07662970B2

    公开(公告)日:2010-02-16

    申请号:US11872887

    申请日:2007-10-16

    IPC分类号: C07D263/04

    摘要: Oxazolidinium compounds are formed by the reaction of a halohydrin or an epoxide with a secondary amine and an aldehyde or a ketone. The oxazolidinium compounds are formed directly and do not require the reaction of a pre-formed oxazolidine with an alkylating agent. The compounds are useful as gas hydrate inhibitors in oil and gas production and transportation.

    摘要翻译: 恶唑烷鎓化合物通过卤代醇或环氧化物与仲胺和醛或酮的反应形成。 恶唑烷鎓化合物直接形成,不需要预形成的恶唑烷与烷基化剂的反应。 该化合物可用作油气生产和运输中的天然气水合物抑制剂。