公开(公告)号：US20120128106A1

公开(公告)日：2012-05-24

申请号：US13295052

申请日：2011-11-12

申请人： Naohisa TAKAYAMA ,  Ryoji Hayashi ,  Hiroyuki Joba ,  Morishige Hieda

发明人： Naohisa TAKAYAMA ,  Ryoji Hayashi ,  Hiroyuki Joba ,  Morishige Hieda

IPC分类号： H04L27/06

CPC分类号： H04L7/042

摘要： A reception circuit is provided which can detect the beginning of data regardless of a preamble or a unique word contained or not in a received signal and regardless of coding systems for received signals. The reception circuit includes a correlation operation portion that performs a correlation operation to generate a correlation signal while sliding one symbol of reference signal in relation to a received signal. The reference signal goes to a high level during a first half symbol period and goes to a low level during a second half symbol period. The reception circuit further includes: a delay portion that outputs a delay signal by delaying the reference signal for a half symbol period in relation to the received signal; and a data beginning timing detection portion that detects a beginning peak timing for the correlation signal as a beginning timing of data contained in the delay signal.

摘要翻译： 提供了一种可以检测数据开始的接收电路，而不管前置码或包含或不包含在接收信号中的唯一字，而不管接收信号的编码系统如何。 接收电路包括相关操作部分，其执行相关操作以产生相关信号，同时相对于接收信号滑动参考信号的一个符号。 参考信号在第一半符号周期期间进入高电平，并且在后半个符号周期期间变为低电平。 接收电路还包括：延迟部分，通过相对于所接收的信号将参考信号延迟半符号周期来输出延迟信号; 以及数据开始定时检测部分，其将相关信号的开始峰值定时检测为包含在延迟信号中的数据的开始定时。