| 摘要 |
PURPOSE:To enable to identify the significance of data without insertion of specific data pattern, by transmitting the significant data with polarity conversion point and transmitting nonsignificant data in a given level, in transmitting digital data of a plurality of levels. CONSTITUTION:The data transmission system is constituted with a transmitter 6 having a transmitter 1 and a scrambler 2 and a receiver 7 having a descrambler 3, receiver 5 and identifier 4. Further, the clear signal from the transmitter 1 of the transmission device 6 is output as the status of 0, when the scrambler 2 is OFF to make it as nonsignificant data. Further, if ON, it acts like a scrambler, the input data is output with the polarity conversion point to make significant data. Moreover, the identifier 4 of the receiver 7 monitors the polarity conversion point of the reception data to output the significant data to the receiver 5, and the inversion from the scrambler 2 is made with the descrambler 3, the original data is reproduced and it is given to the receiver 5. |
