发明名称 |
OPTICAL COMMUNICATIONS TRANSMITTER AND RECEIVER |
摘要 |
An improved digital communications system is disclosed in which synchronization information is transmitted with the data. A start pulse, having a duration different than the other pulses in the transmitted digital data signal is used to mark the beginning of the frame of digital data. Preferably, a midpoint pulse is also transmitted with the start pulse to mark the midpoint of the frame to facilitate the generation of a local clock signal. Bit positions within the transmitted signal are sampled by sampling pulses which are generated by digital timers having time intervals keyed to the start and midpoint pulses. |
申请公布号 |
AU7785887(A) |
申请公布日期 |
1988.02.10 |
申请号 |
AU19870077858 |
申请日期 |
1987.07.23 |
申请人 |
OPTICAL COMMUNICATIONS CORP., LILL, T.M., |
发明人 |
THOMAS M. LILL |
分类号 |
H04L7/04;H04L7/06;H04L25/40 |
主分类号 |
H04L7/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|