Information encoding method and apparatus, information decoding method and apparatus, information recording medium, and information transmission method,申请号US19950532721-传众专利搜索

Information encoding method and apparatus, information decoding method and apparatus, information recording medium, and information transmission method

申请公布号：US5731767(A)

申请号：US19950532721

申请日期：1995.09.27

申请公布日期：1998.03.24

申请人：

SONY CORPORATION

发明人：TSUTSUI, KYOYA;HEDDLE, ROBERT

分类号：G10L19/02;G11B20/10;H04B1/66;(IPC1-7):H03M7/30;H04B14/00

主分类号：G10L19/02

摘要：PCT No. PCT/JP95/00146 Sec. 371 Date Sep. 27, 1995 Sec. 102(e) Date Sep. 27, 1995 PCT Filed Feb. 3, 1994 PCT Pub. No. WO95/21489 PCT Pub. Date Aug. 10, 1995The present invention includes an encoding and decoding apparatus and method where there is used a transform processing to allow a waveform element of a corresponding block to interfere with waveform elements of blocks adjoining in both directions at the time of inverse transform processing as in the case of, e.g., MDCT, to compose a waveform signal, amplifying processing in encoding and corresponding correction processing in decoding can be carried out without inconsistency between blocks. Thus, occurrence of pre-echo can be prevented by simple configuration by using spectrum transform processing of high encoding efficiency.