Systems and methods of interpreting speech data
First Claim
1. A method for minimizing noise in audio signals received by a microphone array, the method comprising:
- providing a principal microphone and one or more supplemental microphones in the microphone array for receiving a principal audio signal and one or more supplemental audio signals respectively, the principal microphone and each supplemental microphone being spaced from one another;
for each supplemental microphone;
determining a component phase shift for calibrating that supplemental microphone;
determining an array phase difference based on a spacing between the principal microphone and that supplemental microphone, the array phase difference being relative to the principal audio signal;
determining a phase shift associated with a supplemental audio signal received by that supplemental microphone,determining a relative phase shift associated with the supplemental audio signal by subtracting the component phase shift from the phase shift associated with the supplemental audio signal;
determining whether any portion of the supplemental audio signal is associated with the relative phase shift that is different from the array phase difference;
in response to determining that a portion of the supplemental audio signal is associated with a different phase shift from the array phase difference, identifying frequencies associated with that portion of the supplemental audio signal; and
removing that portion of the supplemental audio signal and a portion of the principal audio signal associated with the identified frequencies.
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Accused Products
Abstract
Method and systems are provided for interpreting speech data. A method and system for recognizing speech involving a filter module to generate a set of processed audio data based on raw audio data; a translation module to provide a set of translation results for the raw audio data; and a decision module to select the text data that represents the raw audio data. A method for minimizing noise in audio signals received by a microphone array is also described. A method and system of automatic entry of data into one or more data fields involving receiving a processed audio data; and operating a processing module to: search in a trigger dictionary for a field identifier that corresponds to the trigger identifier; identify a data field associated with a data field identifier corresponding to the field identifier; and providing content data associated with the trigger identifier to the identified data field.
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Citations
18 Claims
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1. A method for minimizing noise in audio signals received by a microphone array, the method comprising:
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providing a principal microphone and one or more supplemental microphones in the microphone array for receiving a principal audio signal and one or more supplemental audio signals respectively, the principal microphone and each supplemental microphone being spaced from one another; for each supplemental microphone; determining a component phase shift for calibrating that supplemental microphone; determining an array phase difference based on a spacing between the principal microphone and that supplemental microphone, the array phase difference being relative to the principal audio signal; determining a phase shift associated with a supplemental audio signal received by that supplemental microphone, determining a relative phase shift associated with the supplemental audio signal by subtracting the component phase shift from the phase shift associated with the supplemental audio signal; determining whether any portion of the supplemental audio signal is associated with the relative phase shift that is different from the array phase difference; in response to determining that a portion of the supplemental audio signal is associated with a different phase shift from the array phase difference, identifying frequencies associated with that portion of the supplemental audio signal; and removing that portion of the supplemental audio signal and a portion of the principal audio signal associated with the identified frequencies. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for minimizing noise in audio signals received by a microphone array, the system comprising:
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a principal microphone; one or more supplemental microphones in the microphone array for receiving a principal audio signal and one or more supplemental audio signals respectively;
the principal microphone and each supplemental microphone being spaced from one another; anda processor operable to, for each supplemental microphone, determine a component phase shift for calibrating that supplemental microphone; determine an array phase difference based on a spacing between the principal microphone and that supplemental microphone;
the array phase difference being relative to the principal audio signal;determine a phase shift associated with a supplemental audio signal received by that supplemental microphone; determine a relative phase shift associated with the supplemental audio signal by subtracting the component phase shift from the phase shift associated with the supplemental audio signal; determine whether any portion of the supplemental audio signal is associated with the relative phase shift that is different from the array phase difference; in response to determining that a portion of the supplemental audio signal is associated with a different phase shift from the array phase difference;
identify frequencies associated with that portion of the supplemental audio signal; andremove that portion of the supplemental audio signal and a portion of the principal audio signal associated with the identified frequencies. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification