Voice recognition system method and apparatus
First Claim
1. A system for an interactive voice recognition system, comprising:
- a voice prompt generator configured for generating voice prompt in a first frequency band;
a speech detector configured for detecting presence of speech energy in a second frequency band, wherein said first and second frequency bands are essentially conjugate frequency bands.
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Abstract
An improved system for an interactive voice recognition system (400) includes a voice prompt generator (401) for generating voice prompt in a first frequency band (501). A speech detector (406) detects presence of speech energy in a second frequency band (502). The first and second frequency bands (501, 502) are essentially conjugate frequency bands. A voice data generator (412) generates voice data based on an output of the voice prompt generator (401) and audible speech of a voice response generator (402). A control signal (422) controls the voice prompt generator (401) based on whether the speech detector (406) detects presence of speech energy in the second frequency band (502). A back end (405) of the interactive voice recognition system (400) is configured to operate on an extracted front end voice feature based on whether the speech detector (406) detects presence of speech energy in the second frequency band (502).
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Citations
21 Claims
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1. A system for an interactive voice recognition system, comprising:
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a voice prompt generator configured for generating voice prompt in a first frequency band;
a speech detector configured for detecting presence of speech energy in a second frequency band, wherein said first and second frequency bands are essentially conjugate frequency bands. - View Dependent Claims (2, 3, 4, 5)
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6. A method for an interactive voice recognition system, comprising:
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filtering output of a voice prompt generator in accordance with a first frequency band;
controlling said output of said voice prompt generator based on detection of a presence of speech energy in a second frequency band, wherein said first and second frequency bands are essentially conjugate frequency bands. - View Dependent Claims (7, 8, 9)
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10. A microprocessor system for an interactive voice recognition system for operation in a remote device, comprising:
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means for a voice prompt generator configured for generating voice prompt in a first frequency band;
means for a speech detector configured for detecting presence of speech energy in a second frequency band, wherein said first and second frequency bands are essentially conjugate frequency bands. - View Dependent Claims (11, 12, 13, 14)
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15. A microprocessor system configured for an interactive voice recognition system, comprising:
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means for filtering output of a voice prompt generator in accordance with a first frequency band;
means for controlling said output of said voice generator based on detection of a presence of speech energy in a second frequency band, wherein said first and second frequency bands are essentially conjugate frequency bands. - View Dependent Claims (16, 17, 18)
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19. A remote device for providing remote communication and interactive voice recognition, comprising:
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a voice prompt generator configured for generating voice prompt in a first frequency band;
a speech detector configured for detecting presence of speech energy in a second frequency band, wherein said first and second frequency bands are essentially conjugate frequency bands;
a voice data generator for generating voice data based on an output of said voice prompt generator and audible speech of a voice response generator;
a control signal for controlling said voice prompt generator based on whether said speech detector detects presence of speech energy in said second frequency band. - View Dependent Claims (20, 21)
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Specification