| 摘要 |
PURPOSE:To obtain a hardcopy unit superior in versatility in terms of a change in recording density, etc., by equipping a threshold circuit, synchronous separating circuit, delay circuit, sampling circuit and recorder. CONSTITUTION:Input signal 31 is converted by threshold circuit 32 into a binary signal, which is input to sampling circuit 36. Synchronous separating circuit 34 detects horizontal and vertical synchronising pulses in input signal 31 and then supplies them to delay circuit 35. Delay circuit 35 gives horizontal synchronizing pulses a lag varying gradually and supplies them as sampling pusles to samping circuit 36. At cycles equal to vertical synchronizing pulses, recorder 33 linescans on a paper surface and while scanning lines are cganged in sequence for every vertical synchronizing pulse, the output of sampling circuit 36 is recorded. |
