Patent ID: 7010219
Filing Date: 2006-03-07
Classification: G11B,H04N

Abstract:
1. A coded picture data reproducing apparatus for reproducing a coded picture data which is coded from a picture signal comprised of several frames corresponding to pictures to be reproduced in the specific reproducing sequence based on the predictive coding system, and which is comprised of several groups of data which consists of an intraframe coded picture data, an interframe forward predictive coded picture data and bi-directional predictive coded picture data, comprising: a data fetcher for fetching the coded picture data; a decoder for decoding the picture data corresponding to each frame of the coded picture data; a memory for storing an interframe forward predictive coded picture data corresponding to the frame which will be reproduced last within the picture data group among the decoded picture data decoded by the decoder; a start-frame designator for designating a start-frame among the frames mentioned above; an end-frame designator for designating an end-frame among the frames mentioned above; a memory controller for controlling the memory to store the interframe forward predictive coded picture data corresponding to the frame which will be reproduced last of the picture data group that is reproduced just before the picture data group where the picture data corresponding to the start-frame belongs when the start-frame is designated by the start-frame designator; a data fetcher controller for controlling the data fetcher to fetch the picture data of the picture data group where the picture data corresponding to the start-frame belongs when the end-frame is designated by the end-frame designator; a memory controller for controlling the memory to yield the interframe forward predictive coded picture data; and a decoder controller for controlling the decoder to decode the bi-directional predictive coded picture data corresponding to the frame which is reproduced between the frame corresponding to the interframe forward predictive coded picture data output from the memory and the frame corresponding to the intraframe coded picture data in the picture data group where the start-frame belongs by using the interframe forward predictive coded picture data and the intraframe coded picture data, further controlling to decode the picture data corresponding to the frames up to the end-frame, and wherein, the pictures corresponding to the respective frames from the start-frame to the end-frame are repetitively reproduced.