Communication method and apparatus
    1.
    发明授权
    Communication method and apparatus 有权
    通信方法和装置

    公开(公告)号:US08078934B2

    公开(公告)日:2011-12-13

    申请号:US11743438

    申请日:2007-05-02

    IPC分类号: H03M13/00

    摘要: In a frame sync method, a receiver searches for the presence of an N-symbol long unique word pattern. For each possible frame sync detected, the receiver proceeds to demodulation and FEC processing. After each iteration of the FEC decoder, the detected unique word pattern is compared to the expected one and the frame sync is detected if the number of unique word errors has decreased.

    摘要翻译: 在帧同步方法中,接收机搜索N符号长独特字模式的存在。 对于检测到的每个可能的帧同步,接收机进行解调和FEC处理。 在FEC解码器的每次迭代之后,将检测到的唯一字模式与期望的唯一字模式进行比较,并且如果唯一字错误的数量已经减少,则检测到帧同步。

    System to prevent a scrambler from generating undesired symbols
    2.
    发明授权
    System to prevent a scrambler from generating undesired symbols 失效
    用于防止加扰器产生不需要的符号的系统

    公开(公告)号:US5333197A

    公开(公告)日:1994-07-26

    申请号:US956010

    申请日:1992-12-03

    申请人: Paul R. Febvre

    发明人: Paul R. Febvre

    摘要: A communication system is described in which data characters are each repeatedly encoded in an encoder (3) until an encoded character occurs which is not one of a predetermined set of characters, e.g. reserved characters. Each encoded character, whether or not that encoded character is one of the predetermined set is transmitted by the transmitter (4) to the receiver (5) and a decoded output character provided from the decoder (6) when the corresponding received character is determined not to be the one of the set of characters.

    摘要翻译: PCT No.PCT / GB91 / 00579 Sec。 371日期1992年12月3日 102(e)日期1992年12月3日PCT 1991年4月12日提交PCT公布。 公开号WO91 / 16778 日期为1991年10月31日。描述了一种通信系统,其中数据字符每个在编码器(3)中重复编码,直到出现编码字符为止,不是预定字符集中的一个。 保留字符。 无论该编码字符是否为预定集合之一,每个编码字符由发送器(4)发送到接收器(5),并且当相应的接收字符不被确定时从解码器(6)提供的解码输出字符 成为一组人物之一。