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7587321 Method, apparatus, and system for building context dependent models for a large vocabulary continuous speech recognition (LVCSR) system  
According to one aspect of the invention, a method is provided in which a set of multiple mixture monophone models is created and trained to generate a set of multiple mixture context dependent...
7454341 Method, apparatus, and system for building a compact model for large vocabulary continuous speech recognition (LVCSR) system  
According to one aspect of the invention, a method is provided in which a mean vector set and a variance vector set of a set of N Gaussians are divided into multiple mean sub-vector sets and...
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...
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...
7398208 Method for producing reference segments describing voice modules and method for modeling voice units of a spoken test model  
A method models voice units and produces reference segments for modeling voice units. The reference segments describe voice modules by characteristic vectors, the characteristic vectors being...
7319960 Speech recognition method and system  
A speech recognition system uses a phoneme counter to determine the length of a word to be recognized. The result is used to split a lexicon into one or more sub-lexicons containing only words...
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...
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...
6594393 Dynamic programming operation with skip mode for text line image decoding  
In a text recognition system, the computational efficiency of a text line image decoding operation is improved by utilizing the characteristic of a graph known as the cut set. The branches of the...
6542866 Speech recognition method and apparatus utilizing multiple feature streams  
A method and apparatus is provided for using multiple feature streams in speech recognition. In the method and apparatus, a feature extractor generates at least two feature vectors for a segment of...
6523005 Method and configuration for determining a descriptive feature of a speech signal  
A method and also a configuration for determining a descriptive feature of a speech signal, in which a first speech model is trained with a first time pattern and a second speech model is trained...
6499012 Method and apparatus for hierarchical training of speech models for use in speaker verification  
A method and apparatus for generating a pair of data elements is provided suitable for use in a speaker verification system. The pair includes a first element representative of a speaker...
6456971 Systems and methods for determinizing and minimizing a finite state transducer for pattern recognition  
A pattern recognition system and method for optimal reduction of redundancy and size of a weighted and labeled graph presents receiving speech signals, converting the speech signals into word...
6401064 Automatic speech recognition using segmented curves of individual speech components having arc lengths generated along space-time trajectories  
A method and apparatus for speech recognition using Markov processes on curves are presented. The method and apparatus operate such that input speech utterances are received and represented as...
6401065 Intelligent keyboard interface with use of human language processing  
An intelligent use-friendly keyboard interface that is easily adaptable for wide variety of functions and features, and also adaptable to reduced size portable computers. Speech recognition and...
6397181 Method and apparatus for voice annotation and retrieval of multimedia data  
A method, an apparatus, a computer program product and a system for voice annotating and retrieving digital media content are disclosed. An annotation module ( 420 ) post annotates digital media...
6377924 Method of enrolling phone-based speaker specific commands  
A method of enrolling phone-based speaker specific commands includes the first step of providing a set of (H) of speaker-independent phone-based Hidden Markov Models (HMMs), grammar (G) comprising...
6374212 System and apparatus for recognizing speech  
A continuous, speaker independent, speech recognition method and system for recognizing a variety of vocabulary input signals. A language model which is an implicit description of a graph...
6336108 Speech recognition with mixtures of bayesian networks  
The invention performs speech recognition using an array of mixtures of Bayesian networks. A mixture of Bayesian networks (MBN) consists of plural hypothesis-specific Bayesian networks (HSBNs)...
6301561 Automatic speech recognition using multi-dimensional curve-linear representations  
A method and apparatus for speech recognition using Markov processes on curves are presented. The method and apparatus operate such that input speech utterances are received and represented as...
6292778 Task-independent utterance verification with subword-based minimum verification error training  
An automated speech recognition system comprises a preprocessor, a speech recognizer, and a task-independent utterance verifier. The task independent utterance verifier employs a first subword...
6253178 Search and rescoring method for a speech recognition system  
Speech recognition systems and methods consistent with the present invention process input speech signals organized into a series of frames. The input speech signal is decimated to select K frames...
6249761 Assigning and processing states and arcs of a speech recognition model in parallel processors  
A continuous, speaker independent, speech recognition method and system recognizes a variety of vocabulary input signals. A language model, which is an implicit description of a graph consisting of...
6182038 Context dependent phoneme networks for encoding speech information  
A method and apparatus for generating a context dependent phoneme network as an intermediate step of encoding speech information. The context dependent phoneme network is generated from speech in a...
6148284 Method and apparatus for automatic speech recognition using Markov processes on curves  
A method and apparatus for speech recognition using Markov processes on curves are presented. The method and apparatus operate such that input speech utterances are received and represented as...
6067517 Transcription of speech data with segments from acoustically dissimilar environments  
A technique to improve the recognition accuracy when transcribing speech data that contains data from a wide range of environments. Input data in many situations contains data from a variety of...
6044343 Adaptive speech recognition with selective input data to a speech classifier  
One embodiment of a speech recognition system is organized with speech input signal preprocessing and feature extraction followed by a fuzzy matrix quantizer (FMQ) designed with respective codebook...
6026359 Scheme for model adaptation in pattern recognition based on Taylor expansion  
A model adaptation scheme in the pattern recognition, which is capable of realizing a fast, real time model adaptation and improving the recognition performance. This model adaptation scheme...
5983178 Speaker clustering apparatus based on feature quantities of vocal-tract configuration and speech recognition apparatus therewith  
A speaker clustering apparatus generates HMMs for clusters based on feature quantities of a vocal-tract configuration of speech waveform data, and a speech recognition apparatus provided with the...
5963905 Method and apparatus for improving acoustic fast match speed using a cache for phone probabilities  
Methods and apparatus for performing a tree search based acoustic fast match in a speech recognition system for decoding a speech utterance, the tree having a tree root and tree nodes connected by...
5956678 Speech recognition apparatus and method using look-ahead scoring  
In the recognition of coherently spoken words, a plurality of hypotheses is usually built up which end in various words during the recognition process and are then to be continued with further...
5913193 Method and system of runtime acoustic unit selection for speech synthesis  
The present invention pertains to a concatenative speech synthesis system and method which produces a more natural sounding speech. The system provides for multiple instances of each acoustic unit...
5812974 Speech recognition using middle-to-middle context hidden markov models  
This is a speech recognition method for modeling adjacent word context, comprising: dividing a first word or period of silence into two portions; dividing a second word or period of silence,...
5799277 Acoustic model generating method for speech recognition  
The acoustic model generating method for speech recognition enables a high representation effect on the basis of the minimum possible model parameters. In an initial model having a smaller number...
5768603 Method and system for natural language translation  
The present invention is a system for translating text from a first source language into a second target language. The system assigns probabilities or scores to various target-language translations...
5742928 Apparatus and method for speech recognition in the presence of unnatural speech effects  
A speech recognition apparatus recognizes utterances of unnatural speech having a higher performance of recognition accuracy with a smaller amount of speech learning data. The speech recognition...
5710865 Method of boundary estimation for voice recognition and voice recognition device  
A method of voice recognition with a boundary binding type in consideration of a kind of a voice boundary estimates a probability where a boundary corresponds to every kind basis of the voice...
5710866 System and method for speech recognition using dynamically adjusted confidence measure  
A computer-implemented method of recognizing an input speech utterance compares the input speech utterance to a plurality of hidden Markov models to obtain a constrained acoustic score that...
5687287 Speaker verification method and apparatus using mixture decomposition discrimination  
A new speaker verification method, termed Mixture Decomposition Discrimination (MDD), and a new apparatus for using MDD are presented. MDD takes mixture component score information from a speaker...
5682501 Speech synthesis system  
A speech synthesis unit comprises a text processor which breaks down text into phonemes, a prosodic processor which assigns properties such as length and pitch to the phonemes based on context, and...
5515475 Speech recognition method using a two-pass search  
A method of recognizing speech comprises searching a vocabulary of words for a match to an unknown utterance. Words in the vocabulary are represented by concatenated allophone models and the...
5465317 Speech recognition system with improved rejection of words and sounds not in the system vocabulary  
A speech recognizer that selects a command model for a current sound if the best match score for the current sound exceeds its corresponding threshold score. The threshold score is assigned a...
5333236 Speech recognizer having a speech coder for an acoustic match based on context-dependent speech-transition acoustic models  
A speech coding apparatus compares the closeness of the feature value of a feature vector signal of an utterance to the parameter values of prototype vector signals to obtain prototype match scores...
5276766 Fast algorithm for deriving acoustic prototypes for automatic speech recognition  
An apparatus for generating a set of acoustic prototype signals for encoding speech includes a memory for storing a training script model comprising a series of word-segment models. Each...
5072452 Automatic determination of labels and Markov word models in a speech recognition system  
In a Markov model speech recognition system, an acoustic processor generates one label after another selected from an alphabet of labels. Each vocabulary word is represented as a baseform...
5050215 Speech recognition method  
For circumstance adaption, for example, speaker adaption, confusion coefficients between the labels of the label alphabet for initial training and those for adaption are determined by alignment of...
5046099 Adaptation of acoustic prototype vectors in a speech recognition system  
In a speech recognition system, the prior parameters of acoustic prototype vectors are adapted to a new speaker to obtain posterior parameters by having the speaker utter a set of adaptation words....
5031217 Speech recognition system using Markov models having independent label output sets  
A speech recognition system measures the values of at least two classes of features of an utterance: (1) a first class whose value is related to the frequency spectrum of the utterance, and (2) a...
4977599 Speech recognition employing a set of Markov models that includes Markov models representing transitions to and from silence  
Apparatus and method for constructing word baseforms which can be matched against a string of generated acoustic labels. A set of phonetic phone machines are formed, wherein each phone machine has...
4852180 Speech recognition by acoustic/phonetic system and technique  
A speech recognition system and technique of the acoustic/phonetic type is made speaker-independent and capable of continuous speech recognition during fluent discourse by a combination of...
Matches 1 - 50 out of 54 1 2 >