PATENT CLAIM ANALYSIS

Application Number: 15992562
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2019-12
Patent Classification: ["704", "244000"]

Abstract:
A method of speaker verification comprises: comparing a test input against a model of a user's speech obtained during a process of enrolling the user; obtaining a first score from comparing the test input against the model of the user's speech; comparing the test input against a first plurality of models of speech obtained from a first plurality of other speakers respectively; obtaining a plurality of cohort scores from comparing the test input against the plurality of models of speech obtained from a plurality of other speakers; obtaining statistics describing the plurality of cohort scores; modifying said statistics to obtain adjusted statistics; normalising the first score using the adjusted statistics to obtain a normalised score; and using the normalised score for speaker verification

Claim (Index 10):
A method of speaker verification, comprising:\n comparing a test input against a model of a user's speech obtained during a process of enrolling the user; obtaining a first score from comparing the test input against the model of the user's speech; comparing the test input against a first plurality of models of speech obtained from a first plurality of other speakers respectively; obtaining a plurality of cohort scores from comparing the test input against the plurality of models of speech obtained from a plurality of other speakers; obtaining statistics describing the plurality of cohort scores, wherein the statistics describing the plurality of cohort scores comprise a standard deviation; modifying said statistics to obtain adjusted statistics, wherein the adjusted statistics comprise an adjusted standard deviation; normalising the first score using the adjusted statistics to obtain a normalised score; and using the normalised score for speaker verification; the method further comprising: forming the adjusted standard deviation from the standard deviation of the plurality of cohort scores and a prior tuning factor; wherein the prior tuning factor is obtained by, for each of a plurality of test utterances: comparing the test utterance against a second plurality of models of speech obtained from a second plurality of other speakers respectively; obtaining a second plurality of cohort scores from comparing the test input against the second plurality of models of speech; and calculating a standard deviation of the second plurality of cohort scores; and forming an average of said standard deviations calculated for each of the plurality of test utterances, wherein said average of said standard deviations is taken as the prior tuning factor.

Metadata:
- Claim Count in Document: 24.0
- Percentile: 93.0
- Lexical Diversity: 2.95556
- Patent Class: 704.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13126859', '10957383', '15262748', '14405304', '14720712']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.2744718966164901
- 35 USC 102 Novelty (BERT): 0.478315000624846
- Combined Prediction Score: 0.2948562070173257
- Mean Citation Score: 215.40226
- Max Citation Score: 229.33516
- Similarity Product: 190.8090031589961

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 0

Dataset: test