| 摘要 |
PURPOSE:To increase reliability of the content of information, by processing a received facsimile video information on real time at a receiver, providing a device discriminating the content, transmitting the content automatically if any failure is detected, and making processing such as retransmission of data sheet and the like. CONSTITUTION:Video information is read in by optically scanning the mark sheet at a transmitter 20 and it is converted into electric signal suited to a transmission line 22 and transmitted to a receiver 23. The video information received at the device 23 is demodulated into a binary digital signal and processing is executed on real time. This digital signal is fed to a failure detection circut 24 and the content of the signal is discriminated at the circuit 24, a failure informing transmission circuit 27 is started immediately if failure detection output is present, and it is informed to the device 20 via a transmission line 22. This failure information is detected at a failure informing signal detection circuit 21, alarm signal is fed to the device 20 and it is informed to the operation, so that processing like retransmission of data sheet or the like are made, allowing to increase the content of information for the reliability. |
