Spoken word controlled automatic dialer
First Claim
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1. A spoken word controlled repertory dialing circuit comprising:
- a memory for storing a plurality of template signals representative of the acoustic features of reference words including command words and repertory words;
a directory store for storing a set of dialing signals corresponding to said repertory words;
a speech analyzer responsive to each input spoken word utterance for forming acoustic feature signals representative of said utterance;
a spoken word recognizer jointly responsive to said input spoken word utterance acoustic feature signals from said speech analyzer and template signals from said memory for generating a signal identifying said input utterance;
means responsive to the input utterance identifying signal corresponding to a repertory word template for retrieving the corresponding dialing signal from said directory store;
and means responsive to each occurring input utterance identifying signal for selecting a predetermined set of template signals to identify the next occurring input utterance.
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Abstract
A speech controlled dialing circuit identifies input utterances which may be a command word (mode select), repertory word (dialing name or number), or nonrecognized ("Other"). Responsive to the identification of each occurring input utterance, a set of predetermined templates are selected to identify the next occuring utterance. A programmed microprocessor system is described to implement the main controller function.
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Citations
17 Claims
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1. A spoken word controlled repertory dialing circuit comprising:
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a memory for storing a plurality of template signals representative of the acoustic features of reference words including command words and repertory words; a directory store for storing a set of dialing signals corresponding to said repertory words; a speech analyzer responsive to each input spoken word utterance for forming acoustic feature signals representative of said utterance; a spoken word recognizer jointly responsive to said input spoken word utterance acoustic feature signals from said speech analyzer and template signals from said memory for generating a signal identifying said input utterance; means responsive to the input utterance identifying signal corresponding to a repertory word template for retrieving the corresponding dialing signal from said directory store; and means responsive to each occurring input utterance identifying signal for selecting a predetermined set of template signals to identify the next occurring input utterance. - View Dependent Claims (2, 3, 4, 5, 6)
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7. In a spoken work controlled repertory dialing circuit comprising a memory for storing a plurality of template signals representative of the acoustic features of reference words including command words and repertory words, a directory store for storing a plurality of dialing signals corresponding to said repertory words, a speech analyzer, and a spoken word recognizer;
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the method of outputting dialing signals responsive to input utterances comprising the steps of generating a set of acoustic feature signals for each input utterance in said speech analyzer; identifying each input utterance as a reference word in said spoken word recognizer jointly responsive to template signals from said memory and said input utterance acoustic feature signals from said speech analyzer; retrieving dialing signals from said directory store responsive to each repertory word utterance identifying signal; and responsive to each occurring input utterance identifying signal, selecting only a predetermined set of template signals for identifying the next occurring input utterance. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A spoken word controlled repertory dialer comprising
a memory for storing a plurality of template signals representative of the acoustic features of isolated reference word utterances including a set of isolated command word utterance feature signals and a set of isolated repertory name utterance feature signals; -
a directory store for storing a set of dialing signals corresponding to said set of isolated repertory name utterance feature signals; a speech analyzer responsive to each input utterance for forming acoustic feature signals representative of the input utterance; a spoken word recognizer jointly responsive to said input spoken word utterance feature signals from said speech analyzer and template signals from said template memory for identifying the input utterance as one of said isolated reference word template signals; means responsive to the input utterance identifying signal corresponding to a repertory name for retrieving the dialing signal for said repertory name from said directory store; and means responsive to each occurring input utterance identifying signal for applying a predetermined set of isolated word template signals to said spoken word recognizer to identify the next occurring utterance. - View Dependent Claims (14, 15, 16)
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17. input utterance..Iaddend. .Iadd.18. A voice responsive repertory dialing circuit comprising:
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a memory for storing a plurality of template signals representative of the acoustic features of reference words including repertory words; a directory store for storing a set of dialing signals corresponding to said repertory words; a speech analyzer responsive to each input spoken word utterance for forming acoustic feature signals representative of said utterance; a spoken word recognizer jointly responsive to said input spoken word utterance acoustic feature signals from said speech analyzer and template signals from said memory for generating a signal identifying said input utterance; means responsive to the input utterance identifying signal corresponding to a repertory word template for retrieving the corresponding dialing signal from said directory store; and means responsive to other than repertory word template input utterance identifying signals for selecting at least one template signal to identify the next occurring input utterance..Iaddend.
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Specification