| 摘要 |
PURPOSE:To discriminate whether or not a signal is different route signal without lowering the transmission efficiency by using the same pattern as a sending side to descramble a reception signal at the reception end and to extract it and stopping the transmission when the signal has an error. CONSTITUTION:A pattern corresponding to a route among patterns having different phases generated by a pattern generator 21 respectively is selected by a selector 22 at the sending side, the transmission signal is scrambled and sent by using the selected pattern, a reception signal is descrambled to extract the transmission signal by using the same pattern as that at the sending side generated by a pattern generator 24 at the receiving side, and when an erroneous extracted transmission signal is detected by an error detection circuit 27, the external sending of the extracted transmission signal is stopped. Since no special bit for discriminating whether the signal is the reception signal from a different route is not inserted, the transmission efficiency is not lowered.
|
