A recognition system comprising: input means for receiving a speech signal; recognition processing means for processing the speech signal to indicate its similarity to predetermined patterns to be recognised; output means for supplying a recognition signal indicating recognition of one of said patterns; and rejection means for rejecting the recognition signal under predetermined conditions, characterised in that the rejection means are arranged to receive at least one signal parameter derived from said speech signal which does not depend upon the output of said recognition means. <IMAGE>
申请公布号
DE69421911(T2)
申请公布日期
2000.07.20
申请号
DE1994621911T
申请日期
1994.03.25
申请人
BRITISH TELECOMMUNICATIONS P.L.C., LONDON
发明人
POWER, KEVIN JOSEPH;JOHNSON, STEPHEN HOWARD;SCAHILL, FRANCIS JAMES;RINGLAND, SIMON PATRICK ALEXANDER;TALINTYRE, JOHN EDWARD