JPS5533370A - Facsimile signal transmission system - Google Patents

Abstract

PURPOSE: To realize an accurate picture regeneration even in case the scanning time may be changed with every scanning line by reading out the time T required for recording from the picture signals equivalent to one scanning line and then carrying out encoding of the picture signal in the time longer than time T.

CONSTITUTION: The picture signals equivalent to one scanning line which are read out at signal reading part 1 are code-converted through encoder 2, and at the same time the necessary recording time is calculated at record time measurement part 10. When the encoding of the picture signals is over through encoder 2, the code is sent to buffer memory 3. The code is then read out from memory 3 with a fixed speed and then sent to the circuit. Memory rest amount monitor part 4 discontinues the encoding action when memory 3 becomes close to its overflow state, and then gives a command to transmit the idle dummy code. At receiver R the code sent from circuit 6 is memorized in buffer memory 7, and the code is drawn out according to the memorizable speed with every scanning line. As a result, an accurate picture regeneration is possible even though the record scanning time may be changed.

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