发明名称 Digitales Übertragungssystem.
摘要 Data transmission and recovery, in either the optical or the electrical domain, can be accomplished with mBnB encoding with the violation of one or more of the n code pulses for multiplexing overhead signals, with a carried clock being indicated by periodic fixed position transitions, and with both extraction of the clock and demultiplexing of the overhead signals being accomplished with only logical processing and signal delay. For the above, transmission and processing in only the optical domain can be easily obtained as well as a circuitry that can be constructed cheaply and on a small scale, particularly by integration on a single substrate. The logical processing involves logical combinations of two or more of the received encoded signal, a delay of the received encoded signal, an output of a previous logical combination, and a delayed output of a previous combination, an extracted clock, and a frequency division or a frequency multiplication of an extracted clock.
申请公布号 DE68918070(T2) 申请公布日期 1994.12.22
申请号 DE1989618070T 申请日期 1989.12.28
申请人 HITACHI, LTD., TOKIO/TOKYO, JP 发明人 TAKASAKI, YOSHITAKA, CHIYODA-KU TOKYO, JP
分类号 H04L25/49 主分类号 H04L25/49
代理机构 代理人
主权项
地址