Method of and device for collating data, and computer product
First Claim
1. A computer program containing instructions which when executed on a computer causes the computer to realize:
- a feature amount data extracting unit which extracts feature amount data from a physical amount data;
a feature-amount difference data computing unit which calculates a difference between the feature amount data and a predetermined reference feature amount data as the feature-amount difference data;
a registering unit which registers the feature-amount difference data in a database; and
a collating unit which collates the feature-amount difference data corresponding to the physical amount data input upon collation with the feature amount difference data registered in said database, and outputs the result of collation.
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Accused Products
Abstract
The collating device includes the Formant estimation section that estimates feature amount data that represents a time-based change in frequencies of first and second Formants from voice data input through the microphone. The difference computing section calculates a difference between some reference feature amount data and the feature amount data as the feature-amount difference data. This feature-amount difference data is stored in a database. The feature-amount difference data corresponding to voice data input upon collation is collated with the feature-amount difference data registered in the database, and the result is output.
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Citations
12 Claims
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1. A computer program containing instructions which when executed on a computer causes the computer to realize:
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a feature amount data extracting unit which extracts feature amount data from a physical amount data;
a feature-amount difference data computing unit which calculates a difference between the feature amount data and a predetermined reference feature amount data as the feature-amount difference data;
a registering unit which registers the feature-amount difference data in a database; and
a collating unit which collates the feature-amount difference data corresponding to the physical amount data input upon collation with the feature amount difference data registered in said database, and outputs the result of collation. - View Dependent Claims (2, 3, 4, 5, 6, 12)
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7. A computer program containing instructions which when executed on a computer causes the computer to realize:
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a first feature amount data extracting unit which extracts a first feature amount data from a first physical amount data;
a first feature-amount difference data computing unit which calculates a difference between the first feature amount data and a predetermined first reference feature amount data as the first feature amount difference data;
a second feature amount data extracting unit which extracts second feature amount data from a second physical amount data;
a second feature-amount difference data computing unit which calculates a difference between the second feature amount data and a predetermined second reference feature amount data as the second feature amount difference data;
a registering unit which registers the first feature-amount difference data and the second feature-amount difference data in a database; and
a collating unit which collates the first feature-amount difference data corresponding to the first physical amount data input upon collation with the first feature-amount difference data registered in said database, collates the second feature-amount difference data corresponding to the second physical amount data input upon collation with the second feature amount difference data registered in said database, and outputs the result of collation. - View Dependent Claims (8, 9)
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10. A method of collating data comprising the steps of:
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extracting a feature amount data from a physical amount data;
calculating a difference between the feature amount data and a predetermined reference feature amount data as the feature-amount difference data;
storing the feature-amount difference data in a database; and
collating the feature-amount difference data corresponding to physical amount data input upon collation with the feature amount difference data registered in said database, and outputting the result of collation.
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11. A device for collating data comprising:
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a feature amount data extracting unit which extracts feature amount data from a physical amount data;
a feature-amount difference data computing unit which calculates a difference between the feature amount data and a predetermined reference feature amount data as the feature-amount difference data;
a registering unit which registers the feature-amount difference data in a database; and
a collating unit which collates the feature-amount difference data corresponding to the physical amount data input upon collation with the feature amount difference data registered in said database, and outputs the result of collation.
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Specification