发明名称 |
Method of and apparatus for deriving a plurality of sequences of words from a speech signal |
摘要 |
The determination of a plurality of sequences of words from a speech signal with a decreasing probability of correspondence utilizes the best word sequence as a basis and as further word sequences there are determined only those which enclose a part of the best word sequence, that is to say the remainder of these word sequences. To this end, the recognition involves first the formation of a word graph and the best word sequence is separately stored as a tree which initially has one branch only. The word boundaries of this word sequence form nodes in this tree. Because only nodes of this tree have to be taken into account for the next-best word sequences, the calculation is substantially simpler than if the complete word graph were first completely expanded in the form of a tree and completely searched again for each new word sequence. |
申请公布号 |
US5987409(A) |
申请公布日期 |
1999.11.16 |
申请号 |
US19970938922 |
申请日期 |
1997.09.26 |
申请人 |
U.S. PHILIPS CORPORATION |
发明人 |
TRAN, BACH-HIEP;SEIDE, FRANK;STEINBISS, VOLKER |
分类号 |
G10L15/28;G10L15/08;G10L15/18;(IPC1-7):G10L7/08 |
主分类号 |
G10L15/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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