| abstract |
(57) [Summary] [Purpose] To improve the image quality during special playback. [Composition] An LPF 2 supplies a low frequency component of a video signal to an intra-frame compression processing circuit 4. The subtractor 3 extracts the high frequency component of the video signal and supplies it to the inter-frame compression processing circuit 5. The intra-frame compression processing circuit 4 intra-frame compresses the low frequency component of the video signal, and the inter-frame compression processing circuit 5 inter-frame compresses the high frequency component of the video signal. The MPX 14 is controlled by the data arrangement control circuit 15 to multiplex and output the intra-frame data, the inter-frame data, and the address data and the data length data from the address generation / data length measurement circuits 11 and 13 for each recording unit. . Since the intra-frame compression processing is performed only on the low frequency component, the area of the screen corresponding to the intra frame data recordable in one recording unit is large. As a result, the update area during special reproduction can be increased, and the quality of the reproduced image is improved. |