| 摘要 |
<p>PROBLEM TO BE SOLVED: To conduct expansion processing of image data efficiently by applying coordinate operation to a general purpose microprocessor conducting software processing and a peripheral circuit conducting hardware processing. SOLUTION: First and second microprocessors 10, 11 capable of parallel processing are used to process data requiring processing including comparatively complicated arithmetic operations such as inverse discrete cosine transformation. A block loader 15 and a VLC decoder 14 are used for hardware-processing for data requiring comparatively simple processing as shown in the following: processing requiring frequent memory access such as read of other frame data for processing of inter-frame predict coding image and processing substantially difficult of parallel processing such as decode processing of a picture element such as variable length coding. The conventional microprocessors 10, 11 conducting software processing and peripheral circuits 14, 15 conducting hardware processing are operated in cooperation.</p> |
