Patent ID: 7215611
Filing Date: 2007-05-08
Classification: G11B,G11C

Abstract:
1. A data processing method designed to permit editing of compressed data, comprising the steps of: (a) transferring main data in the form of a compressed data stream having a series of fixed-bit-number frames each having a main data section and a subdata section, the main data sections being closely packed with variable-bit-number blocks of the main data, with each main data block contained in at least one main data section and possibly spanning the main data sections of a plurality of consecutive frames, each of the subdata sections holding subdata indicative of the beginning positions of the respective main data blocks with respect to the frames; (b) creating, on the basis of the subdata on the subdata sections of the compressed data stream, control data indicative of the addresses of expected storage locations on a rewritable storage device where the main data blocks on the main data sections of the compressed data stream are to be stored; (c) storing the main data blocks in the expected storage locations on the rewritable storage device; the expected storage locations being divided from each other and having different addresses; (d) storing the control data to permit the main data blocks on the rewritable storage device to be individually addressed for editing; (e) reading out the main data blocks from the rewritable storage device; and (f) reformatting the main data blocks into a decodable data stream, the decodable data stream having a series of fixed-bit-number frames each having a main data section and a subdata section, the main data sections being such in bit number that the main data blocks are each wholly contained in one main data section.