Digital signal processing system for limiting a result to be predetermined bit count

摘要

A video codec (coder-decoder) system inputs consecutively admitted frames of sub-sampled video data obtained by sub-sampling video data in units of frames. The video data is coded in parallel by internal coding circuits. This averages the numbers of significant pixels in the sub-sampled video data to be processed. The coded video data is composed so as to comply with specifications of the receiving equipment. Upon transmission, the data is again sub-sampled depending on the number of coding circuits on the receiving side. Each block of the sub-sampled data is given a header for consecutive transmission. This allows for a certain period of time between pieces of data that arrive at the receiving side, thereby eliminating time differences in receiving and coding.