Voice-operated services
First Claim
Patent Images
1. A speech recognition apparatus comprising:
- a store of data containing entries to be identified and information defining for each entry a connection with a word of a first set of words and a connection with a word of a second set of words;
speech recognition means; and
control means operable;
(a) to control the speech recognition means to identify, by reference to recognition information for the first set of words, as many words of the first set as meet a predetermined criterion of similarity to first received voice signals;
(b) upon such identification, to compile a list of all words of the second set which are connected with entries connected also with the identified word(s) of the first set; and
(c) to control the speech recognition means as to identify, by reference to recognition information for the second set of words, at least one word of the list which resembles second received voice signals.
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Abstract
A method and apparatus accesses a database where entries are linked to at least two sets of patterns. One or more patterns of a first set of patterns are recognized within a received signal. The recognized patterns are used to identify entries and compile a list of patterns in a second set of patterns to which those entries are also linked. The list is then used to recognize a second received signal. The received signals may, for example, be voice signals or signals indicating the origin or destination of the received signals.
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Citations
37 Claims
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1. A speech recognition apparatus comprising:
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a store of data containing entries to be identified and information defining for each entry a connection with a word of a first set of words and a connection with a word of a second set of words; speech recognition means; and control means operable; (a) to control the speech recognition means to identify, by reference to recognition information for the first set of words, as many words of the first set as meet a predetermined criterion of similarity to first received voice signals; (b) upon such identification, to compile a list of all words of the second set which are connected with entries connected also with the identified word(s) of the first set; and (c) to control the speech recognition means as to identify, by reference to recognition information for the second set of words, at least one word of the list which resembles second received voice signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A telephone information apparatus comprising:
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a telephone line connection; a speech recogniser for recognising spoken words received via the telephone line connection, by reference to recognition data representing a set of possible utterances; and means responsive to receipt via the telephone line connection of signals indicating the origin or destination of a telephone call to access stored information identifying a subset of the set of utterances and to restrict the recogniser operation to that subset. - View Dependent Claims (13, 14)
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15. A telephone apparatus comprising:
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a telephone line connection; a speech recogniser for determining or verifying the identity of the speaker of spoken words received via the telephone line connection, by reference to recognition data corresponding to a set of possible speakers; and means responsive to receipt via the telephone line connection of signals indicating the origin or destination of a telephone call to access stored information identifying a subset of the set of speakers and to restrict the recogniser operation to that subset.
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16. A telephone information apparatus comprising:
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telephone line connection; a speech recogniser for recognising spoken words received via the telephone line connection, by reference to one of a plurality of stored sets of recognition data; and means responsive to receipt via the telephone line connection of signals indicating the original or destination of a telephone call to access stored information identifying one of the sets of recognition data and to supply this set to the recogniser. - View Dependent Claims (17, 18, 19)
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20. A speech recognition apparatus comprising:
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a store defining a first set of words; a store defining a second set of words; a store containing entries to be identified; a store containing information relating each entry to a word of the first set and to a word of the second set; speech recognition means operable upon receipt of a first voice signal to identify as many words of the first set as meet a predetermined recognition criterion; means to generate a list of all words of the second set which are related to an entry to which the identified word(s) of the first set is also related; and speech recognition means operable upon receipt of a second voice signal to identify at least one word of the list.
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21. A recognition apparatus comprising:
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a store defining a first set of patterns; a store defining a second set of patterns; a store containing entries to be identified; a store containing information relating each entry to a pattern of the first set and to a pattern of the second set; recognition means operable upon receipt of a first input pattern signal to identify as many patterns of the first set as meet a predetermined recognition criterion; means to generate a list of all patterns of the second set which are related to an entry to which an identified pattern of the first set is also related; and recognition means operable upon receipt of a second input pattern signal to identify at least one pattern of the list.
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22. A speech recognition apparatus comprising:
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(i) a store of data containing entries to be identified and information defining for each entry a connection with a signal of a first set of signals and a connection with a word of a second set of words; (ii) means for identifying a received signal as corresponding to as many of the first set as meet a predetermined criterion; (iii) control means operable to compile a list of all words of the second set which are connected with entries connected also with the identified signal of the first set; and (iv) speech recognition means operable to identify, by reference to recognition information for the second set of words, at least one word of the list which resembles received voice signals. - View Dependent Claims (23, 24, 25)
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26. A method of identifying entries in a store of data by reference to stored information defining connections between entries and words, said method comprising:
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(a) identifying one or more of the said words as present in received voice signals; (c) compiling a list of those of the said words connected with entries connected also with the identified words; and (c) identifying at least one of the words of the list as present in the received voice signals.
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27. A speech recognition apparatus comprising:
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a) a store of data containing entries to be identified and information defining for each entry a connection with at least two words; b) a speech recognition means able to identify by reference to stored recognition information for a defined set of words, at least one word or word sequence which meets some predefined criterion of similarity to a received voice signal; (c) a control means operable; i) to compile a list of words which are connected with entries connected with a word previously identified by the speech recognition means; and ii) to control the speech recognition means to identify, by reference to recognition information for the compiled lists, at least one word or word sequence which resembles a further received voice signal.
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28. A method of speech recognition by reference to a stored set of words to be recognised, said method comprising
(a) receiving a speech signal; -
(b) storing the speech signal; (c) receiving a second signal; (d) compiling a list of words, being a subset of the set of words, as a function of the second signal; (e) applying to the stored speech signal a speech recognition process so as to identify, by reference to the list at least one word of the subset. - View Dependent Claims (29, 30, 31, 32)
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33. A method of speech recognition comprising:
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(a) receiving a speech signal; (b) storing the speech signal; (c) performing a recognition operation on the speech signal or some other signal; and (d) in the event of the recognition operation failing to meet a predetermined criterion of reliability, retrieving the stored speech signal and performing a recognition operation thereon.
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34. An interactive voice recognition and response method for identifying at least one stored data base item comprising plural classes of mutually inter-related sub-items, said method comprising:
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(a) issuing a synthesized voice request for a first speech input representing a first class of sub-item; (b) performing speech recognition of said first speech input to identify at least one potentially corresponding first sub-item; (c) issuing a synthesized voice request for a second speech input representing a second class of sub-item; (d) compiling a list of second sub-items mutually inter-related with said identified first sub-item(s); and (e) performing speech recognition of said second speech input with respect to said compiled list to identify at least one potentially corresponding second sub-item from said list. - View Dependent Claims (35, 36, 37)
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Specification