Speech recognition apparatus, vehicle including the same, and method of controlling the same
First Claim
1. A speech recognition apparatus comprising:
- a voice collection unit configured to collect voices; and
a controller configured to control recognizing a speech based on signals of the voices collected by the voice collection unit during a predetermined time period from a voice collection start time, identify whether a signal is received during the predetermined time period when an operation command corresponding to the recognized speech is not identified, generate a No Leading Silence (NLS) flag upon identifying that the signal is received, determine that a speech recognition failure occurs by an early utterance when a number of times NLS flag is generated is the same as a reference number of times, and output information corresponding to the speech recognition failure by the early utterance,wherein the controller controls re-requesting speech recognition when the generated NLS flag number of times is less than the reference number of times, and outputting early utterance habit guidance information when the generated NLS flag number of times is the same as the reference number of times.
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Accused Products
Abstract
A speech recognition apparatus includes a voice collection unit configured to collect voices, and a controller configured to control recognizing a speech based on signals of the voices collected during a predetermined time period from a voice collection start time, identifying whether a signal is received during the predetermined time period when an operation command corresponding to the recognized speech is not identified, determining that an early utterance occurs upon determination that the signal is received during the predetermined time period, counting a number of times of the speech recognition failure occurring by the early utterance, re-performing speech recognition when the counted number of times is less than a reference number of times, and outputting early utterance habit guidance information when the counted number of times is the same as the reference number of times.
11 Citations
17 Claims
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1. A speech recognition apparatus comprising:
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a voice collection unit configured to collect voices; and a controller configured to control recognizing a speech based on signals of the voices collected by the voice collection unit during a predetermined time period from a voice collection start time, identify whether a signal is received during the predetermined time period when an operation command corresponding to the recognized speech is not identified, generate a No Leading Silence (NLS) flag upon identifying that the signal is received, determine that a speech recognition failure occurs by an early utterance when a number of times NLS flag is generated is the same as a reference number of times, and output information corresponding to the speech recognition failure by the early utterance, wherein the controller controls re-requesting speech recognition when the generated NLS flag number of times is less than the reference number of times, and outputting early utterance habit guidance information when the generated NLS flag number of times is the same as the reference number of times. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A vehicle comprising:
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a speech recognition apparatus; and at least one device, operation of which is controlled based on an operation command corresponding to a speech recognized by the speech recognition apparatus, wherein the speech recognition apparatus comprises; a voice collection unit configured to collect voices; and a controller configured to control recognizing a speech based on signals of the voices collected by the voice collection unit during a predetermined time period from a voice collection start time, identify whether a signal is received during the predetermined time period when an operation command corresponding to the recognized speech is not identified, generate a No Leading Silence (NLS) flag upon identifying that the signal is received, determine that a speech recognition failure occurs by an early utterance when a number of times NLS flag is generated is the same as a reference number of times, and output information corresponding to the speech recognition failure by the early utterance, wherein the controller controls re-requesting speech recognition when the generated NLS flag number of times is less than the reference number of times, and output early utterance habit guidance information when the generated NLS flag number of times is the same as the reference number of times. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A method of controlling a speech recognition apparatus configured to receive a command to control operation of a plurality of devices installed in a vehicle, the method comprising:
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determining whether a start command signal for speech recognition is received; operating a voice collection unit upon determination that the start command signal for speech recognition is received; determining whether a predetermined time period has lapsed from a voice collection start time; recognizing a speech based on signals of voices collected from a time after the predetermined time period; identifying an operation command corresponding to the recognized speech; identifying whether a signal is received during the predetermined time period when the operation command corresponding to the recognized speech is not identified; generating a No Leading Silence (NLS) flag upon identifying that the signal is received, determining that a speech recognition failure occurs by an early utterance when a number of times NLS flag is generated is the same as a reference number of times; outputting information corresponding to the speech recognition failure by the early utterance; and counting a number of times of the speech recognition failure by the early utterance, outputting a beep sound to re-perform speech recognition when the generated NLS flag number of times is less than the reference number of times, and outputting early utterance habit guidance information when the generated NLS flag number of times is the same as the reference number of times. - View Dependent Claims (15, 16, 17)
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Specification