Coding device, decoding device, and methods thereo

专利名称：Coding device, decoding device, and

methods thereof

发明人：Kei Kikuiri,Nobuhiko Naka,Tomoyuki Ohya申请号：US10646752申请日：20030825

公开号：US20040098267A1公开日：20040520

专利附图：

摘要：A coding device capable of improving the coding efficiency and a decodingdevice for decoding a code sequence generated by the coding device are provided. In thecoding device., for each of the possible block combinations obtained when dividing a

frame, a coding unit encodes each block in the frame block by block at different bit rates,and at the same time, the coding unit decodes the resultant code sequences related tothe frame. A calculation unit calculates the error powers of the decoded signals and theinput signal. A determination unit selects a code sequence that makes the average bitrate in coding the frame not higher than a specified value and the corresponding errorpower a minimum. This selected code sequence is output.

申请人：NTT DOCOMO, INC.

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