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| Number | Title | Issue Date |
| 8190430 | Method and system for using input signal quality in speech recognition A method and system for using input signal quality in an automatic speech recognition system. The method includes measuring the quality of an input signal into a speech recognition system and varying a rejection threshold of the speech recognition system at runtime ... | 05/29/2012 |
| 8175874 | Personalized voice activity detection A method of transferring a real-time audio signal transmission, including: registering voice patterns (or other characteristics) of on more users to be used to identify the voices of the users, accepting an audio signal as it is created as a sequence of segments, an... | 05/08/2012 |
| 8170873 | Comparing events in word spotting An approach to comparing events in word spotting, such as comparing putative and reference instances of a keyword, makes use of a set of models of subword units. For each of two acoustic events and for each of a series of times in each of the events, a probability a... | 05/01/2012 |
| 8165877 | Confidence measure generation for speech related searching A voice search system has a speech recognizer, a search component, and a dialog manager. A confidence measure generator receives speech recognition features from the speech recognizer, search features from the search component, and dialog features from the dialog ma... | 04/24/2012 |
| 8145484 | Speech processing with predictive language modeling The described implementations relate to speech spelling by a user. One method identifies one or more symbols that may match a user utterance and displays an individual symbol for confirmation by the user. ... | 03/27/2012 |
| 8145485 | Grammar weighting voice recognition information A device receives a voice recognition statistic from a voice recognition application and applies a grammar improvement rule based on the voice recognition statistic. The device also automatically adjusts a weight of the voice recognition statistic based on the gramm... | 03/27/2012 |
| 8135699 | Summarization systems and methods A server-side summarization system includes a function for acquiring material to be summarized, along with source information about the material, a converter for converting the acquired material to machine-readable form, if not in that form when acquired, a summariz... | 03/13/2012 |
| 8112275 | System and method for user-specific speech recognition The systems and methods described herein may recognize natural language utterances that include queries and/or commands and execute the queries and/or commands based on user-specific profiles. The systems and methods described herein may include a complete speech-ba... | 02/07/2012 |
| 8095363 | Method and system for predicting understanding errors in a task classification system A method and system for monitoring an automated dialog system for the automatic recognition of language understanding errors based on a user's input communications in a task classification system. If the user's input communication cannot be understood and a task cla... | 01/10/2012 |
| 8078462 | Apparatus for creating speaker model, and computer program product A transformation-parameter calculating unit calculates a first model parameter indicating a parameter of a speaker model for causing a first likelihood for a clean feature to maximum, and calculates a transformation parameter for causing the first likelihood to maxi... | 12/13/2011 |
| 8024188 | Method and system of optimal selection strategy for statistical classifications An optimal selection or decision strategy is described through an example that includes use in dialog systems. The selection strategy or method includes receiving multiple predictions and multiple probabilities. The received predictions predict the content of a rece... | 09/20/2011 |
| 8015007 | Speech recognition apparatus and method thereof A speech recognition apparatus includes a first grammar storage unit configured to store one or more grammar segments, a second grammar storage unit configured to store one or more grammar segments, a first decoder configured to carry out a decoding process by refer... | 09/06/2011 |
| 8000962 | Method and system for using input signal quality in speech recognition A method and system for using input signal quality in an automatic speech recognition system. The method includes measuring the quality of an input signal into a speech recognition system and varying a rejection threshold of the speech recognition system at runtime ... | 08/16/2011 |
| 7953598 | Grammar weighting voice recognition information A device receives a voice recognition statistic from a voice recognition application and applies a grammar improvement rule based on the voice recognition statistic. The device also automatically adjusts a weight of the voice recognition statistic based on the gramm... | 05/31/2011 |
| 7933773 | Natural language understanding monitoring system for identifying a task A natural language understanding monitoring system adapted to conduct an automated dialog with a user. If the system is unable to identify from the automated dialog, to at least a predetermined level of confidence, any one of a plurality of predetermined tasks as be... | 04/26/2011 |
| 7890325 | Subword unit posterior probability for measuring confidence Speech recognition such as command and control speech recognition generally use a context free grammar to constrain the decoding process. Word or subword background model are constructed to repopulate dynamic hypothesis space, especially when word spareness is at is... | 02/15/2011 |
| 7813925 | State output probability calculating method and apparatus for mixture distribution HMM When adjacent times or the small change of an observation signal is determined, a distribution which maximizes the output probability of a mixture distribution does not change at a high possibility. By using this fact, when obtaining the output probability of the mi... | 10/12/2010 |
| 7792671 | Augmentation and calibration of output from non-deterministic text generators by modeling its characteristics in specific environments Outputs of an automatic probabilistic event detection system, such as a fact extraction system, a speech-to-text engine or an automatic character recognition system, are matched with comparable results produced manually or by a different system. This comparison allo... | 09/07/2010 |
| 7788094 | Apparatus, method and system for maximum entropy modeling for uncertain observations A method for performing conditional maximum entropy modeling includes constructing a conditional maximum entropy model, and incorporating an observation confidence score into the model to reduce an effect due to an uncertain observation. ... | 08/31/2010 |
| 7676365 | Method and apparatus for constructing and using syllable-like unit language models A method and computer-readable medium use syllable-like units (SLUs) to decode a pronunciation into a phonetic description. The syllable-like units are generally larger than a single phoneme but smaller than a word. The present invention provides a means for definin... | 03/09/2010 |
| 7634404 | Speech recognition method and apparatus utilizing segment models A method and apparatus determine the likelihood of a sequence of words based in part on a segment model. The segment model includes trajectory expressions formed as the product of a polynomial matrix and a generation matrix. The likelihood of the sequence of words i... | 12/15/2009 |
| 7624011 | Speech recognition method computer readable medium and apparatus for recognizing geographical names using weight information A speech recognition apparatus and method of this invention manage previously input frequencies of occurrence for respective geographical names to be recognized (202), update the probability of occurrence of the geographical name to be recognized of interest ... | 11/24/2009 |
| 7584099 | Method and system for interpreting verbal inputs in multimodal dialog system A method, a system and a computer program product for interpreting a verbal input in a multimodal dialog system are provided. The method includes assigning (302) a confidence value to at least one word generated by a verbal recognition component. The method f... | 09/01/2009 |
| 7584098 | Vocabulary-independent search of spontaneous speech A method of identifying a location of a query string in an audio signal is provided. Under the method, a segment of the audio signal is selected. A score for a query string in the segment of the audio signal is determined by determining the product of probabilities ... | 09/01/2009 |
| 7529666 | Minimum bayes error feature selection in speech recognition In connection with speech recognition, the design of a linear transformation θεp×n, of rank p×n, which projects the features of a classifier xεn onto y=θxεp such as to achieve minimum Bayes error (or probability of misclassifi... | 05/05/2009 |
| 7529667 | Automated dialog system and method This invention concerns a method and system for monitoring an automated dialog system for the automatic recognition of language understanding errors based on a user's input communications. The method illustratively determines whether a probability of understanding t... | 05/05/2009 |
| 7493257 | Method and apparatus handling speech recognition errors in spoken dialogue systems To handle portions of a recognized sentence having an error, a user is questioned about contents associated with portions. According to a user's answer, a result is obtained. Speech recognition unit extracts a speech feature of a speech signal inputted from user and... | 02/17/2009 |
| 7487087 | Method of speech recognition using variational inference with switching state space models A method is developed which includes 1) defining a switching state space model for a continuous valued hidden production-related parameter and the observed speech acoustics, and 2) approximating a posterior probability that provides the likelihood of a sequence of t... | 02/03/2009 |
| 7487088 | Method and system for predicting understanding errors in a task classification system This invention concerns a method and system for monitoring an automated dialog system for the automatic recognition of language understanding errors based on a user's input communications. The method may include determining whether a probability of understanding the... | 02/03/2009 |
| 7480615 | Method of speech recognition using multimodal variational inference with switching state space models A method of efficiently setting posterior probability parameters for a switching state space model begins by defining a window containing at least two but fewer than all of the frames. A separate posterior probability parameter is determined for each frame in the wi... | 01/20/2009 |
| 7472060 | Automated dialog system and method This invention concerns a method and system for monitoring an automated dialog system for the automatic recognition of language understanding errors based on a user's input communications in a dialog with the user. The probability of conducting a successful dialog w... | 12/30/2008 |
| 7457748 | Method of automatic processing of a speech signal Method of automatically processing a speech signal which comprises the steps of: determining a sequence of probability models corresponding to a given text; determining a sequence of acoustic strings corresponding ... | 11/25/2008 |
| 7454336 | Variational inference and learning for segmental switching state space models of hidden speech dynamics A system and method that facilitate modeling unobserved speech dynamics based upon a hidden dynamic speech model in the form of segmental switching state space model that employs model parameters including those describing the unobserved speech dynamics and those de... | 11/18/2008 |
| 7454337 | Method of modeling single data class from multi-class data The present invention is a method of modeling a single class of data from data containing multiple classes of data of the same type of data by first receiving a collection of data that includes data from multiple classes of data of the same type where the amount of ... | 11/18/2008 |
| 7444284 | System, method and computer program product for large-scale street name speech recognition A system, method and computer program product are provided for speech recognition. During operation, a database of words are maintained. Initially, a probability is assigned to each of the words which indicates a prevalence of use of the word. Further, an utterance ... | 10/28/2008 |
| 7440893 | Automated dialog method with first and second thresholds for adapted dialog strategy This invention concerns a method and system for monitoring an automated dialog system for the automatic recognition of language understanding errors based on a user's input communications. The method illustratively determines whether a probability of understanding t... | 10/21/2008 |
| 7437288 | Speech recognition apparatus A speech recognition apparatus using a probability model that employs a mixed distribution, the apparatus formed by a standard pattern storage means for storing a standard pattern; a recognition means for outputting recognition results corresponding to an input spee... | 10/14/2008 |
| 7421387 | Dynamic N-best algorithm to reduce recognition errors A method for reducing recognition errors. The method includes receiving an N-best list associated with an input of a computer based recognition system. The N-best list includes one or more hypotheses and associated confidence values. The input is classified in respo... | 09/02/2008 |
| 7409342 | Speech recognition device using statistical language model A speech recognizing device. Natural speech recognizing means recognizes speech input in an application program by dictation. Recognition result converting means converts a recognition result from said natural speech recognizing means into a final recognition result... | 08/05/2008 |
| 7406408 | Method of recognizing phones in speech of any language Method of recognizing phones in speech of any language. Acquire phones for all languages and a set of languages. Acquire a pronunciation dictionary, a transcript of speech for the set of languages, and speech for the transcript. Receive speech containing unknown pho... | 07/29/2008 |
