| 摘要 |
<p>PURPOSE:To utilize effectively a transmission line by applying deframing when meny pieces of generated information due to inter-frame codes exist and inserting a coding stop signal to the head of the frame subject to deframing to as to write the result to a buffer memory. CONSTITUTION:When switching control for switch circuits 2, 5 is executed in a four-frame period and meny coded data are generated, the coding stop signal S is outputted from a storage amount detection circuit 6 so as to apply slow speed shot. Since the coded data of the preceding frame is being transmitted for the period corresponding to the frame even with deframing the coded data is transmitted so as to utilize effectively the transmission line by slow speed shot. The period switching the circuits 2, 5 is not limited to the four-frame period but plural frame periods being >=2 frames are adopted and the capacity of buffer memories 3, 4 is decided depending on the period.</p> |
