Patents by Inventor Sabine V. Deligne
Sabine V. Deligne has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8977549Abstract: A natural language business system and method is developed to understand the underlying meaning of a person's speech, such as during a transaction with the business system. The system includes a speech recognition engine, and action classification engine, and a control module. The control module causes the system to execute an inventive method wherein the speech recognition and action classification models may be recursively optimized on an unisolated performance metric that is pertinent to the overall performance of the natural language business system, as opposed to the isolated model-specific criteria previously employed.Type: GrantFiled: September 26, 2013Date of Patent: March 10, 2015Assignee: Nuance Communications, Inc.Inventors: Sabine V. Deligne, Yuqing Gao, Vaibhava Goel, Hong-Kwang Kuo, Cheng Wu
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Publication number: 20140032217Abstract: A natural language business system and method is developed to understand the underlying meaning of a person's speech, such as during a transaction with the business system. The system includes a speech recognition engine, and action classification engine, and a control module.Type: ApplicationFiled: September 26, 2013Publication date: January 30, 2014Applicant: Nuance Communications, Inc.Inventors: Sabine V. Deligne, Yuqing Gao, Vaibhava Goel, Hong-Kwang Kuo, Cheng Wu
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Patent number: 7783484Abstract: Techniques for improving an automatic baseform generation system. More particularly, the invention provides techniques for reducing insertion of spurious speech events in a word or phone sequence generated by an automatic baseform generation system. Such automatic baseform generation techniques may be accomplished by enhancing the scores of long-lasting speech events with respect to the scores of short-lasting events. For example, this may be achieved by merging competing candidates that relate to the same speech event (e.g., phone or word) and that overlap in time into a single candidate, the score of which may be equal to the sum of the scores of the merged candidates.Type: GrantFiled: July 16, 2008Date of Patent: August 24, 2010Assignee: Nuance Communications, Inc.Inventors: Sabine V. Deligne, Lidia L. Mangu
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Patent number: 7523034Abstract: Methods and arrangements for enhancing speech recognition in noisy environments, via providing at least one initial Compound Gaussian Mixture model, applying an adaptation algorithm to at least one item associated with speech enrollment data and to the at least one initial Compound Gaussian Mixture model to yield an intermediate output, and mathematically combining the at least one initial Compound Gaussian Mixture model with the intermediate output to yield an adapted Compound Gaussian Mixture model.Type: GrantFiled: December 13, 2002Date of Patent: April 21, 2009Assignee: International Business Machines CorporationInventors: Sabine V. Deligne, Satyanarayana Dharanipragada
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Publication number: 20080281593Abstract: Techniques for improving an automatic baseform generation system. More particularly, the invention provides techniques for reducing insertion of spurious speech events in a word or phone sequence generated by an automatic baseform generation system. Such automatic baseform generation techniques may be accomplished by enhancing the scores of long-lasting speech events with respect to the scores of short-lasting events. For example, this may be achieved by merging competing candidates that relate to the same speech event (e.g., phone or word) and that overlap in time into a single candidate, the score of which may be equal to the sum of the scores of the merged candidates.Type: ApplicationFiled: July 16, 2008Publication date: November 13, 2008Applicant: International Business Machines CorporationInventors: Sabine V. Deligne, Lidia L. Mangu
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Patent number: 7409345Abstract: Techniques for improving an automatic baseform generation system. More particularly, the invention provides techniques for reducing insertion of spurious speech events in a word or phone sequence generated by an automatic baseform generation system. Such automatic baseform generation techniques may be accomplished by enhancing the scores of long-lasting speech events with respect to the scores of short-lasting events. For example, this may be achieved by merging competing candidates that relate to the same speech event (e.g., phone or word) and that overlap in time into a single candidate, the score of which may be equal to the sum of the scores of the merged candidates.Type: GrantFiled: April 4, 2003Date of Patent: August 5, 2008Assignee: International Business Machines CorporationInventors: Sabine V. Deligne, Lidia L. Mangu
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Patent number: 7225124Abstract: A technique for separating a signal associated with a first source from a mixture of the first source signal and a signal associated with a second source comprises the following steps/operations. First, two signals respectively representative of two mixtures of the first source signal and the second source signal are obtained. Then, the first source signal is separated from the mixture in a non-linear signal domain using the two mixture signals and at least one known statistical property associated with the first source and the second source, and without a need to use a reference signal.Type: GrantFiled: December 10, 2002Date of Patent: May 29, 2007Assignee: International Business Machines CorporationInventors: Sabine V. Deligne, Satyanarayana Dharanipragada
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Patent number: 7181395Abstract: Methods and apparatus for automatically deriving multiple phonetic baseforms of a word from a speech utterance of this word are provided in accordance with the present invention. In one embodiment, a method of automatically generating two or more phonetic baseforms from a spoken utterance representing a word includes the steps of: transforming the spoken utterance into a stream of acoustic observations; generating two or more strings of subphone units, wherein each string of subphone units represents a string of subphone units substantially maximizing a log-likelihood of the stream of acoustic observations, and wherein the log-likelihood is computed as a weighted sum of a transition score associated with a transition model and of an acoustic score associated with an acoustic model; and converting the two or more strings of subphone units into two or more phonetic baseforms.Type: GrantFiled: October 27, 2000Date of Patent: February 20, 2007Assignee: International Business Machines CorporationInventors: Sabine V. Deligne, Ramesh Ambat Gopinath, Benoit Emmanuel Ghislain Maison
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Publication number: 20040199385Abstract: Techniques for improving an automatic baseform generation system. More particularly, the invention provides techniques for reducing insertion of spurious speech events in a word or phone sequence generated by an automatic baseform generation system. Such automatic baseform generation techniques may be accomplished by enhancing the scores of long-lasting speech events with respect to the scores of short-lasting events. For example, this may be achieved by merging competing candidates that relate to the same speech event (e.g., phone or word) and that overlap in time into a single candidate, the score of which may be equal to the sum of the scores of the merged candidates.Type: ApplicationFiled: April 4, 2003Publication date: October 7, 2004Applicant: International Business Machines CorporationInventors: Sabine V. Deligne, Lidia L. Mangu
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Publication number: 20040117183Abstract: Methods and arrangementgs for enhancing speech recognition in noisy environments, via providing providing at least one initial Compound Gaussian Mixture model, applying an adaptation algorithm to at least one item associated with speech enrollment data and to the at least one initial Compound Gaussian Mixture model to yield an intermediate output, and mathematically combining the at least one initial Compound Gaussian Mixture model with the intermediate output to yield an adapted Compound Gaussian Mixture model.Type: ApplicationFiled: December 13, 2002Publication date: June 17, 2004Applicant: IBM CorporationInventors: Sabine V. Deligne, Satyanarayana Dharanipragada
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Publication number: 20040111260Abstract: A technique for separating a signal associated with a first source from a mixture of the first source signal and a signal associated with a second source comprises the following steps/operations. First, two signals respectively representative of two mixtures of the first source signal and the second source signal are obtained. Then, the first source signal is separated from the mixture in a non-linear signal domain using the two mixture signals and at least one known statistical property associated with the first source and the second source, and without a need to use a reference signal.Type: ApplicationFiled: December 10, 2002Publication date: June 10, 2004Applicant: International Business Machines CorporationInventors: Sabine V. Deligne, Satyanarayana Dharanipragada