Method for operating a speech recognition system
First Claim
1. A method for operating a speech recognition system comprising acts of:
- detecting a speech signal of a user;
analyzing the speech signal to recognize speech information contained in the speech signal;
determining a reception quality value or a noise value which represents a current reception quality; and
switching the speech recognition system over to a mode of operation which is less sensitive to noise in response to determining that the noise value has exceeded a noise threshold or that the reception quality value has dropped below a reception quality threshold, or both; and
automatically resetting the speech recognition system to a previous mode of operation in response to determining that the reception quality value has exceeded the reception quality threshold or that the noise value has dropped below the noise threshold.
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Abstract
A method for operating a speech recognition system is described in which a speech signal (S1) of a user is detected and analyzed so as to recognize speech information contained in the speech signal (S1). The speech recognition system determines a reception quality value (SQ) or a noise value which represents a current reception quality. The speech recognition system is switched over to a mode of operation which is less sensitive to noise and/or outputs an alert signal (SW) to the user when the reception quality value (SQ) drops below a given reception quality threshold or when the noise value exceeds a noise threshold. An appropriate speech recognition system is also described.
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Citations
20 Claims
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1. A method for operating a speech recognition system comprising acts of:
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detecting a speech signal of a user; analyzing the speech signal to recognize speech information contained in the speech signal; determining a reception quality value or a noise value which represents a current reception quality; and switching the speech recognition system over to a mode of operation which is less sensitive to noise in response to determining that the noise value has exceeded a noise threshold or that the reception quality value has dropped below a reception quality threshold, or both; and automatically resetting the speech recognition system to a previous mode of operation in response to determining that the reception quality value has exceeded the reception quality threshold or that the noise value has dropped below the noise threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A speech recognition system, comprising:
at least one processor configured to detect a speech signal of a user;
to analyze the detected speech signal to recognize speech information contained in the speech signal;
to determine a reception quality value or a noise value, representing a current reception quality;
to compare the reception quality value with a reception quality threshold or to compare the noise value with a noise threshold;
to switch the speech recognition system over to a mode of operation which is less sensitive to noise in response to determining that the reception quality value has dropped below the reception quality threshold or that the noise value has exceeded the noise threshold, or both, and to automatically reset the speech recognition system to a previous mode of operation in response to determining that the reception quality value has exceeded the reception quality threshold or that the noise value has dropped below the noise threshold.- View Dependent Claims (10, 11, 12)
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9. A non-transitory, computer readable medium encoded with instructions which, when executed by at least one processor, cause the at least one processor to carry out a method for operating a speech recognition system, the method comprising acts of:
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detecting a speech signal of a user; analyzing the speech signal to recognize speech information contained in the speech signal; determining a reception quality value or a noise value which represents a current reception quality; switching the speech recognition system over to a mode of operation which is less sensitive to noise in response to determining that the noise value has exceeded a noise threshold or that the reception quality value has dropped below a reception quality threshold, or both; and automatically resetting the speech recognition system to a previous mode of operation in response to determining that the reception quality value has exceeded the reception quality threshold or that the noise value has dropped below the noise threshold. - View Dependent Claims (13)
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14. A method for operating a speech recognition system, the method comprising:
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detecting a speech signal (SI) of a user; analyzing the speech signal to recognize speech information contained in the speech signal (SI); determining a reception quality value (SQ) or a noise value which represents a current reception quality; switching the speech recognition system over to a mode of operation, which is less sensitive to noise when the noise value exceeds a noise threshold or outputting an alert signal (SW) to the user when the reception quality value (SQ) drops below a given reception quality threshold, or both; and automatically resetting the speech recognition system to a previous mode of operation when the reception quality value (SQ) exceeds the reception quality threshold or when the noise value drops below the noise threshold. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification