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7062433 Method of speech recognition with compensation for both channel distortion and background noise  
A method of speech recognition with compensation is provided by modifying HMM models trained on clean speech with cepstral mean normalization. For all speech utterances the MFCC vector is...
7058576 Method of calculating HMM output probability and speech recognition apparatus  
The invention relates to speech recognition based on HMM, in which speech recognition is performed by performing vector quantization and obtaining an output probability by table reference, and the...
7054814 Method and apparatus of selecting segments for speech synthesis by way of speech segment recognition  
A speech segment search unit searches a speech database for speech segments that satisfy a phonetic environment, and a HMM learning unit computes the HMMs of phonemes on the basis of the search...
7050974 Environment adaptation for speech recognition in a speech communication system  
A speech communication system comprising a speech input terminal and a speech recognition apparatus which can communicate with each other through a wire or wireless communication network wherein...
7035802 Recognition system using lexical trees  
The dynamic programming technique employs a lexical tree that is encoded in computer memory as a flat representation in which the nodes of each generation occupy contiguous memory locations. The...
7035801 Text language detection  
A method of determining the language of a text message received by a mobile telecommunications device indicates receiving an input text message at a mobile telecommunications device; analyzing the...
7027979 Method and apparatus for speech reconstruction within a distributed speech recognition system  
A method and apparatus for speech reconstruction within a distributed speech recognition system is provided herein. Missing MFCCs are reconstructed and utilized to generate speech. Particularly,...
7024360 System for reconstruction of symbols in a sequence  
A method of reconstructing a damaged sequence of symbols where some symbols are missing is provided in which statistical parameters of the sequence are used with confidence windowing techniques to...
7016837 Voice recognition system  
An initial combination HMM 16 is generated from a voice HMM 10 having multiplicative distortions and an initial noise HMM of additive noise, and at the same time, a Jacobian matrix J is calculated...
7013273 Speech recognition based captioning system  
A system and associated method of converting audio data from a television signal into textual data for display as a closed caption on an display device is provided. The audio data is decoded and...
7013276 Method of assessing degree of acoustic confusability, and system therefor  
Predicting speech recognizer confusion where utterances can be represented by any combination of text form and audio file. The utterances are represented with an intermediate representation that...
7003456 Methods and systems of routing utterances based on confidence estimates  
A computer-based method of routing a message to a system includes receiving a message, and processing the message using large-vocabulary continuous speech recognition to generate a string of text...
7003460 Method and apparatus for an adaptive speech recognition system utilizing HMM models  
In speech recognition, phonemes of a language are modelled by a hidden Markov model, whereby each status of the hidden Markov model is described by a probability density function. For speech...
6996525 Selecting one of multiple speech recognizers in a system based on performance predections resulting from experience  
A method for selecting a speech recognizer from a number of speech recognizers in a speech recognition system. The speech recognition system receives an audio stream from an application and derives...
6990442 Parsing with controlled tokenization  
The present invention provides a parsing technique wherein a parsing process provides feedback to a tokenizer to select an appropriate sub-tokenizer process corresponding to a grammar rule being...
6980954 Search method based on single triphone tree for large vocabulary continuous speech recognizer  
A search method based on a single triphone tree for large vocabulary continuous speech recognizer is disclosed in which speech signal are received. Tokens are propagated in a phonetic tree to...
6970819 Speech synthesis device  
The principal object of this invention is to provide a suitable control method for closing length with respect to phonemes (such as unvoiced plosive consonants) having a closing interval, and as a...
6963837 Attribute-based word modeling  
An attribute-based speech recognition system is described. A speech pre-processor receives input speech and produces a sequence of acoustic observations representative of the input speech. A...
6961703 Method for speech processing involving whole-utterance modeling  
A speech verification process involves comparison of enrollment and test speech data and an improved method of comparing the data is disclosed, wherein segmented frames of speech are analyzed...
6950796 Speech recognition by dynamical noise model adaptation  
The invention provides a Hidden Markov Model (132) based automated speech recognition system (100) that dynamically adapts to changing background noise by detecting long pauses in speech, and for...
6937983 Method and system for semantic speech recognition  
The present invention discloses a computer-implemented method to understand queries or commands spoken by users when they use natural language utterances similar to those that people use...
6928409 Speech recognition using polynomial expansion and hidden markov models  
A speech recognition system (10) having a sampler block (12) and a feature extractor block (14) for extracting time domain and spectral domain parameters from a spoken input speech into a feature...
6922489 Image interpretation method and apparatus  
A method of interpreting an image using a statistical or probabilistic interpretation model is disclosed. The image has associated therewith contextual information. The method comprises the...
6922668 Speaker recognition  
This invention relates to an improved method and apparatus for speaker recognition. In this invention, prior to comparing feature vectors derived from speech with a stored reference model the...
6917919 Speech recognition method  
A speech recognition method is described in which a basic set of models is adapted to a current speaker on account of the speaker's already noticed speech data. The basic set of models comprises...
6912498 Error correction in speech recognition by correcting text around selected area  
Correcting incorrect text associated with recognition errors in computer-implemented speech recognition includes receiving a selection of a word from a recognized utterance. The selection indicates...
6895380 Voice actuation with contextual learning for intelligent machine control  
An interactive voice actuated control system for a testing machine such as a tensile testing machine is described. Voice commands are passed through a user-command predictor and integrated with a...
6895377 Phonetic data processing system and method  
A phonetic data processing system processes phonetic stream data to produce a set of semantic data, using a context-free rich semantic grammar database (RSG DB) that includes a grammar tree,...
6882973 Speech recognition system with barge-in capability  
A voice processing system includes a speech recognition facility with barge-in. The system plays out a prompt to a caller, who starts to provide their spoken response while the prompt is still...
6871177 Pattern recognition with criterion for output from selected model to trigger succeeding models  
A method and apparatus of recognizing a pattern comprising a sequence of sub-patterns includes a set of possible patterns being modelled by a network of sub-pattern models. One or more initial...
6853962 Training apparatus and method  
Training apparatus for training a user to engage in transactions (e.g. a foreign language conversation) with another person whom the apparatus is arranged to simulate, the apparatus comprising: an...
6850888 Methods and apparatus for training a pattern recognition system using maximal rank likelihood as an optimization function  
A method and apparatus are disclosed for training a pattern recognition system, such as a speech recognition system, using an improved objective function. The concept of rank likelihood, previously...
6847921 Method for analyzing spatially-varying noise in seismic data using Markov chains  
The invention is a method for analyzing spatially-varying noise in seismic data. Transitions between data values at adjacent data locations in a seismic data set are represented by Markov chains....
6845357 Pattern recognition using an observable operator model  
Data structures, systems, and methods are aspects of pattern recognition using observable operator models (OOMs). OOMs are more efficient than Hidden Markov Models (HMMs). A data structure for an...
6832191 Process for implementing a speech recognizer, the related recognizer and process for speech recognition  
To implement a speech recognizer for a language in conditions of substantial unavailability of related speech training material the first step (1,2) is, based on related speech training material, a...
6832190 Method and array for introducing temporal correlation in hidden markov models for speech recognition  
In the recognition of spoken language, phonemes of the language are modelled by hidden Markov models. A modified hidden Markov model includes a conditional probability of a feature vector dependent...
6823306 Methods and apparatus for generating, updating and distributing speech recognition models  
Techniques for generating, distributing, and using speech recognition models are described. A shared speech processing facility is used to support speech recognition for a wide variety of devices...
6823304 Speech recognition apparatus and method performing speech recognition with feature parameter preceding lead voiced sound as feature parameter of lead consonant  
A lead consonant buffer stores a feature parameter preceding a lead voiced sound detected by a voiced sound detector as a feature parameter of a lead consonant. A matching processing unit performs...
6823308 Speech recognition accuracy in a multimodal input system  
A speech recognition method for use in a multimodal input system comprises receiving a multimodal input comprising digitized speech as a first modality input and data in at least one further...
6801890 Method for enhancing recognition probability in voice recognition systems  
The invention relates to a method for enhancing recognition probability in voice recognition systems. According to the inventive method, selective post-training of the already stored homonymic term...
6801892 Method and system for the reduction of processing time in a speech recognition system using the hidden markov model  
Disclosed is a speech recognition method in a speech recognition apparatus to applying speech recognition to a voice signal applied thereto. The input voice signal is converted from an analog to a...
6789066 Phoneme-delta based speech compression  
An arrangement is provided for compressing speech data. Speech data is compressed based on a phoneme stream, detected from the speech data, and a delta stream, determined based on the difference...
6789063 Acoustic modeling using a two-level decision tree in a speech recognition system  
In some embodiments, the invention involves receiving phonetic samples and assembling a two-level phonetic decision tree structure using the phonetic samples. The decision tree has multiple leaf...
6789061 Method and system for generating squeezed acoustic models for specialized speech recognizer  
Computer-based methods and systems are provided for automatically generating, from a first speech recognizer, a second speech recognizer such that the second speech recognizer is tailored to a...
6778959 System and method for speech verification using out-of-vocabulary models  
A system and method for speech verification using out-of-vocabulary models includes a speech recognizer that has a model bank with system vocabulary word models, a garbage model, and one or more...
6772120 Computer method and apparatus for segmenting text streams  
Computer method and apparatus for segmenting text streams is disclosed. Given is an input text stream formed of a series of words. A probability member provides working probabilities that a group...
6754629 System and method for automatic voice recognition using mapping  
A method and system that combines voice recognition engines and resolves differences between the results of individual voice recognition engines using a mapping function. Speaker independent voice...
6735566 Generating realistic facial animation from speech  
A system for learning a mapping between time-varying signals is used to drive facial animation directly from speech, without laborious voice track analysis. The system learns dynamical models of...
6735588 Information search method and apparatus using Inverse Hidden Markov Model  
An information search method and apparatus employ an Inverse Hidden Markov Model (IHMM) for stochastically searching for a reference information model among a plurality of predetermined reference...
6728674 Method and system for training of a classifier  
A method and a system for corrective training of speech models includes changing a weight of a date sample whenever a data sample is incorrectly associated with a classifier and retraining each...