Parallel optical data transmission system

摘要: Data transmission apparatus is described in which data transmitted over a communication link consisting of bundle optical fibres. Each message as sequence groups bits, the bits each group being parallel fibre carries signal encoded by self-clocking code, and preceded serial start pattern on fibre. The receiver (311) comprises plurality decoders (520-524) for extracting separate clock signals from These are fed to detection circuits (570-574). When has been detected all fibres, clocked into buffer. contents buffers then read out parallel. arrangement overcomes problems skew due different times