发明名称 |
SYSTEM FOR EMBEDDED CODING OF SPEECH SIGNALS |
摘要 |
The set of possible excitation signals is subdivided into a plurality of subsets, the first of which provides the contribution to the coded signal necessary to set up a transmission at a minimum rate guaranteed by the network, whilst the others supply a contribution which, when added to that of the first subset, causes a rate increase by successive steps. At the receiving side, a decoded signal is generated by using the excitation contribution of the first subset alone if the coded signals are received at the minimum rate, whilst for rates higher than the minimum rate the contributions of the subsets which have allowed such rate increase are also used. <IMAGE> |
申请公布号 |
EP0492459(A3) |
申请公布日期 |
1993.02.03 |
申请号 |
EP19910121836 |
申请日期 |
1991.12.19 |
申请人 |
SIP SOCIETA ITALIANA PER L'ESERCIZIO TELEFONICO P.A. |
发明人 |
DROGO DE IACOVO, ROSARIO;MONTAGNA, ROBERTO;SERENO, DANIELE |
分类号 |
G10L19/08;G10L19/00;G10L19/04;G10L19/12;(IPC1-7):G10L9/14 |
主分类号 |
G10L19/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|