| Original document(62 pages) 中文版 |
There is disclosed an encoding device capable of appropriately adjusting the dynamic range of spectrum inserted according to the technique for replacing a spectrum of a certain band with a spectrum of another band. The device includes a spectrum deformation unit (112) which deforms a first spectrum S1(k) of the band 0 <= k < FL in various ways to change the dynamic range so that a way of deformation for obtaining an appropriate dynamic range is checked. The information concerning the deformation is encoded and given to a multiplexing unit (115). By using a second spectrum S2(k) having a valid signal band 0 <= k <FH as a reference signal, an extended band spectrum encoding unit (114) estimates a spectrum (spectrum of extended band) to be contained in the higher range (FL <= k < FH) of the first spectrum S1(k) according to the first spectrum S1'(k) after the deformation, encodes the information concerning the estimation spectrum, and gives it to the multiplexing unit (115). |
Application Number
申请号 |
200580014118 |
Application Date
申请日 |
2005.05.13 |
| Title 名称 |
Encoding device, decoding device, and method thereof |
Publication Number
公开号 |
1950686 |
Publication Date
公开日 |
2007.04.18 |
| Approval Pub. Date |
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Granted Pub. Date |
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| International Classification 分类号 |
G01L21/04;H03M7/30 |
Applicant(s) Name
申请人 |
Matsushita Electric Ind Co., Ltd. |
| Address 地址 |
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| Inventor(s) Name 发明人 |
Oshikiri Masahiro;Ehara Hiroyuki |
| Attorney & Agent 代理人 |
guoding hui huangxiao lin |
| More information 更 多 信 息 |
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