Transmitting and receiving device of error correction code |
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| 申请号 | JP6723784 | 申请日 | 1984-04-03 | 公开(公告)号 | JPS60210044A | 公开(公告)日 | 1985-10-22 |
| 申请人 | Nec Corp; | 发明人 | OOSHIMA GOROU; KATOU KOUTAROU; | ||||
| 摘要 | PURPOSE: To monitor the generating frequency of error correction pulses and to simplify the set of synchronization by applying scrambling to both data obtained before and after coding with a transmitter then descrambling both data obtained before and after decoding with a receiver respectively. CONSTITUTION: A transmission input data signal 100 of a transmitter of an error correction code transmitting/receiving device is added with the output of a scrambling circuit 1 by an adder 21 and supplied to a coder 2. The coder 2 performs the error correction coding. Then the output of the coder 2 is added with the output of the circuit 1 by an adder 22, and the output of the adder 22 is outputted to a transmission line 3 as a transmission output data signal 101. A reception input signal 102 fed from the line 3 is added with the output of a descrambling circuit 5 by an adder 23 and supplied to a decoder 4. The output of the decoder 4 is added with the output of the circuit 5 by an adder 24. Then a reception output data signal 103 is outputted. Then the synchronization timing of the circuit 5 is monitored by an error correction pulse fed from the decoder 4. COPYRIGHT: (C)1985,JPO&Japio |
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| 说明书全文 | |||||||
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