| 摘要 |
<p>PURPOSE:To scale down a device by providing a control circuit which controls a picture memory and an input-output bus and composing multistage processing of one stage parallel multi-processor when the multistage processing such as pre-filtering processing, encoding processing 1, information volume estimating processing and encoding processing 2 is executed. CONSTITUTION:When a control signal 107 from the control circuit 6 is '1', an input picture signal stored in the memory 5 is outputted to the moving picture input bus 100 and a picture sampled value is outputted to a sequential. A fetching command and a processing beginning instruction 104 are outputted to each unit processor from the control circuit 6. A moving picture signal after the pre-filtering processing outputted to a moving picture output bus 102 is written in the picture memory 5 again. After the processing is finished, each unit processor makes a processing finishing signal 105 (flag signal) to '1' from zero for the control circuit 6 and informs the processing is finished. The control circuit 6 receiving the processing finishing signal makes the control signal 107 to '1' from zero again for the picture memory 5 in a next scanning section and controls to transfer the picture signal of the next scanning line to each unit processor through a form bus 100. Thus the multistage processing can be effectively executed by one stage parallel multi-processor.</p> |
