Patent ID: 6016382
Filing Date: 2000-01-18
Classification: G06T,G11B,H04N

Abstract:
A reproduction apparatus comprising:reading means for reading reproduced data from a rotating storage medium on which moving picture data coded with a highly efficient coding method is recorded in such a way that a plurality of front and/or rear positional data are recorded in front of a first independently decodable independent frame that constitutes a part of the moving picture data, the front and/or rear positional data being related to recorded positions of second independently decodable independent frames constituting other parts of the moving picture data and recorded before and/or after the first independently decodable independent frame, the front and/or rear positional data being used for a special reproduction mode, the front and/or rear positional data being recorded as relative addresses and/or absolute addresses;detecting means for detecting the front and/or rear positional data from the data outputted by the reading means;control means for controlling the reading means for access from the first independent frame to one of the second independent frames in the special reproduction mode in accordance with the detected front and/or rear positional data, the second independent frame being not directly accessed after the first independent frame has been read, access from the first to the second independent frame, being performed in order of at least one intermediate independent frame and the second independent frame said intermediate independent frame being located between the first and the second independent frame, access from the first to the intermediate independent frame being carried out on the basis of the front and/or rear positional data recorded in front of the first independent frame the second independent frame being accessed on the basis of the front and/or rear positional data recorded in front of the first independent frame;storing means for storing at least the moving picture data of the second independent frame read from the storage medium by the reading means, but not storing the moving picture data of the intermediate independent frame; anddecoding means for reading the moving picture data from the storing means and decoding the read moving picture data to output decoded moving picture data, the decoding means outputting only the second independent frames in the special reproduction mode.