Satellite receiver option for certificate distribution

    公开(公告)号:US10348508B2

    公开(公告)日:2019-07-09

    申请号:US15510893

    申请日:2015-09-15

    Abstract: In exemplary embodiments of the present invention, a V2V unit in a vehicle (OBE) can, for example, store a plurality of years of encrypted certificates. The certificates can, for example, be programmed at an OBE factory using a secure server, and access to all certificates can be locked until an unlock key is computed for a given window (certificate validity period). An in-vehicle satellite receiver can then receive, over, for example, a dedicated satellite control channel, unlock codes for a current time window and a next time window, and provide them to the V2V device. Using those unlock codes, the V2V device (OBE) can compute an unlock key from an unlock code provided by the satellite receiver. In this manner an in-vehicle device may be directly messaged, but only to unlock one or more certificates at a controlled time. Without the received lock codes, the stored certificates are not useable.

    SYSTEM AND METHOD FOR INCREASING TRANSMISSION BANDWIDTH EFFICIENCY
    3.
    发明申请
    SYSTEM AND METHOD FOR INCREASING TRANSMISSION BANDWIDTH EFFICIENCY 审中-公开
    增加传输带宽效率的系统和方法

    公开(公告)号:US20140025839A1

    公开(公告)日:2014-01-23

    申请号:US14021833

    申请日:2013-09-09

    CPC classification number: H04L65/608 H04H20/40 H04H20/42

    Abstract: Systems and methods for increasing bandwidth for digital content delivery are presented. A content delivery method and system split a digitally encoded content file (e.g., song, television show, movie, podcast, or other audio or video content file) to be delivered to receivers into at least two files with a first file being stored at a receiver in advance of receiving the second file. The first file generally includes a majority of the information in the content file but is denatured and cannot be decoded by a receiver or media player to produce even a portion of the original content file without the second file. The second file includes information derived from the original content file that is not contained in the first file. Upon receiving the transmitted second file, a receiver combines and processes both files to recover the original content file wholly or substantially for playback.

    Abstract translation: 提出了增加数字内容传送带宽的系统和方法。 内容传送方法和系统将要传送给接收者的数字编码内容文件(例如,歌曲,电视节目,电影,播客或其他音频或视频内容文件)分割成至少两个文件,其中第一文件被存储在 接收器提前接收第二个文件。 第一文件通常包括内容文件中的大部分信息,但是变性,并且不能被接收器或媒体播放器解码以产生甚至一部分原始内容文件而没有第二文件。 第二个文件包括从原始内容文件导出的信息,该文件不包含在第一个文件中。 在接收到所发送的第二文件之后,接收器组合并处理这两个文件以完全或基本上用于回放的原始内容文件。

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