发明申请
- 专利标题: Encoding device and decoding device
- 专利标题(中): 编码设备和解码设备
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申请号: US11324633申请日: 2006-01-03
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公开(公告)号: US20060115092A1公开(公告)日: 2006-06-01
- 发明人: Keisuke Toyama , Shiro Suzuki , Minoru Tsuji
- 申请人: Keisuke Toyama , Shiro Suzuki , Minoru Tsuji
- 优先权: JPP2000-390589 20001222
- 主分类号: H04R5/00
- IPC分类号: H04R5/00 ; G10L21/00 ; G10L19/00
摘要:
The present invention relates to an encoding device for saving the number of bits of codes. In step S11, the differential value between a normalization coefficient Bi to be encoded and a normalization coefficient Bi-1 for an encoding unit Ai-1 in a band adjacent to the lower side of an encoding unit Ai corresponding to the normalization coefficient Bi is computed. In step S12, reference is made to a table in which a differential value having a high frequency of occurrence is associated with a code having a small number of bits, and a code corresponding to the computed differential value is read. In step S13, it is determined whether or not all normalization coefficients B have been encoded. If it is determined that all normalization coefficients B have been encoded, in step S14, the code read in step S12 is output. The present invention is applicable to an audio recorder.
公开/授权文献
- US07933417B2 Encoding device and decoding device 公开/授权日:2011-04-26