| 摘要 |
PURPOSE:To reduce the influence of a transmission error upon a recorded picture, by stopping the drive of a recording subordinate scan until correct data is received next when the number of received error lines exceed a constant number. CONSTITUTION:The output of decoding part 1 is inputted to error detection control part 2, which counts the number of input data for error detection utilizing whether the count value agrees with the number of picture elements of one line and also counts the number of error lines to exercise switching control over one-line memories 3 and 4 and opening-closing control over gates 5 and 6. The output of decoding part 1 is also inputted, line by line, to line memory 3 or 4 via switch S1 under the control of error detection control part 2 and then sent to recording conversion part 7 by way of switch S2 and gate 5. After a pattern for one line is reproduced, recording subordinate scan drive part 8 is driven via gate 6 under the control of control circuit 2 to change lines, thereby reproducing the one-line pattern. |
