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5664061 |
Interactive computer system recognizing spoken commands
An interactive computer system having a processor executing a target computer program, and having a speech recognizer for converting an utterance into a command signal for the target computer...
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5664050 |
Process for evaluating speech quality in speech synthesis
The present invention relates to a process for evaluating speech quality in speech synthesizers with the aid of a speech recognition system. The recognition system is programmed using a number of...
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5655057 |
Speech recognition apparatus
A speech recognition apparatus includes an average vector calculating portion 5, a compensating portion 6, and a matching portion 8. The average vector calculating portion 5 calculates an average...
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5651096 |
Merging of language models from two or more application programs for a speech recognition system
A speech recognition system operating on a computer system, which uses a single speech recognizer for all of the currently running application programs and provides a way of efficiently determining...
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5649060 |
Automatic indexing and aligning of audio and text using speech recognition
A method of automatically aligning a written transcript with speech in video and audio clips. The disclosed technique involves as a basic component an automatic speech recognizer. The automatic...
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5640488 |
System and method for constructing clustered dictionary for speech and text recognition
The dictionary is broken into clusters by first grouping the dictionary according to a rule based procedure whereby the dictionary is sorted by word length and alphabetically. After sorting, a...
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5640485 |
Speech recognition method and system
The present invention relates to a speech recognition method and a system for a speech-controllable telephone in which a value is computed (2) for a reference word with a speech recognizer (8) on...
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5638425 |
Automated directory assistance system using word recognition and phoneme processing method
A mechanized directory assistance system for use in a telecommunications network includes multiple speech recognition devices comprising a word recognition device, a phoneme recognition device, and...
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5630015 |
Speech signal processing apparatus for detecting a speech signal from a noisy speech signal
A band division process including a Fourier transformation is performed for an inputted speech signal, thereby outputting spectrum signals of plural channels. A cepstrum analysis process is...
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5625748 |
Topic discriminator using posterior probability or confidence scores
An improved topic discriminator includes an integrated speech recognizer or word and phrase spotter as part of a speech event detector, and a topic classifier trained on topic-dependent event...
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5621809 |
Computer program product for automatic recognition of a consistent message using multiple complimentary sources of information
A general approach is provided for the combined use of several sources of information in the automatic recognition of a consistent message. For each message unit (e.g., word) the total likelihood...
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5617855 |
Medical testing device and associated method
A medical testing device comprises an analog-to-digital converter for converting to an electrical digital signal a voice-frequency signal originating in a speech by a human speaker. The A/D...
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5617509 |
Method, apparatus, and radio optimizing Hidden Markov Model speech recognition
In a statistical based speech recognition system, one of the key issues is the selection of the Hidden Markov Model that best matches a given sequence of feature observations. The problem is...
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5613037 |
Rejection of non-digit strings for connected digit speech recognition
A high reliability digit string recognizer/rejection system that processes spoken words through an HMM recognizer to determine a string of candidate digits, a filler model for each digit in the...
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5612869 |
Electronic health care compliance assistance
An electronic health care compliance assistance system includes a user device and a host station used by a health care provider. The user device generates voice messages to remind a user when and...
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5613034 |
Method and apparatus for recognizing spoken words in a speech signal
In the recognition of coherent speech, language models are favourably used to increase the reliability of recognition, which models, for example, take into account the probabilities of word...
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5602960 |
Continuous mandarin chinese speech recognition system having an integrated tone classifier
A speech recognition system for continuous Mandarin Chinese speech comprises a microphone, an A/D converter, a syllable recognition system, an integrated tone classifier, and a confidence score...
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5598505 |
Cepstral correction vector quantizer for speech recognition
A method for correcting cepstral vectors representative of speech generated in a test environment by use of a vector quantization (VQ) system with a codebook of vectors that was generated using...
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5594834 |
Method and system for recognizing a boundary between sounds in continuous speech
Boundaries of spoken sounds in continuous speech are identified by classifying delimitative sounds to provide improved performance in a speech-recognition system. Delimitative sounds, those...
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5583965 |
Methods and apparatus for training and operating voice recognition systems
A voice recognition system and method for training the same are provided wherein a first voice signal representing an instruction as well as a predetermined instruction signal corresponding to the...
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5577165 |
Speech dialogue system for facilitating improved human-computer interaction
A speech dialogue system capable of realizing natural and smooth dialogue between the system and a human user, and easy maneuverability of the system. In the system, a semantic content of input...
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5577164 |
Incorrect voice command recognition prevention and recovery processing method and apparatus
Information for identifying whether a word should be recognized in the next recognition operation is stored in a recognition dictionary. This information is updated each time the recognized result...
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5572624 |
Speech recognition system accommodating different sources
The speech recognition system disclosed herein obtains improved recognition accuracy by employing recognition models which are discriminatively trained from a data base comprising training data...
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5566229 |
Voice directed communications system employing shared subscriber identifiers
The use of subscriber identifiers in a voice directed telecommunications system employing automatic speaker recognition is enhanced such that a group of subscribers may share the same identifier.
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5562453 |
Adaptive biofeedback speech tutor toy
A prompt-providing adaptive speech tutor toy, is characterized by a programmed sequence of prompts in standard speech evoking a user's voice response of a word or phrase. Initially, a vocalized...
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5561722 |
Pattern matching method and pattern recognition apparatus
A pattern matching multiplies distances between an input pattern and standard patterns by distance-scale correcting weight coefficients respectively prepared for the standard patterns. This yields...
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5559925 |
Determining the useability of input signals in a data recognition system
A system for generating a signal proportional to the useability of the output of a speech recognition system comprises a processor, an engine, and a histogram object. The histogram object comprises...
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5532936 |
Transform method and spectrograph for displaying characteristics of speech
A method of transforming time-domain data to frequency-domain data by means of digital numerical models of damped oscillators, and a spectrograph implemented using said method.
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5526407 |
Method and apparatus for managing information
A method and apparatus for recording, categorizing, organizing, managing and retrieving speech information obtains a speech stream; stores the speech stream in at least a temporary storage;...
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5526463 |
System for processing a succession of utterances spoken in continuous or discrete form
The system of the invention relates to continuous speech pre-filtering systems for use in discrete and continuous speech recognition computer systems. The speech to be recognized is converted from...
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5526466 |
Speech recognition apparatus
At the time of training reference speech, the relationship between durations of each recognition unit is obtained by a duration training circuit and, at the time of recognizing speech, a beginning...
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5517558 |
Voice-controlled account access over a telephone network
The present invention describes a system and method for enabling a caller to obtain access to services via a telephone network by entering a spoken first character string having a plurality of...
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5504805 |
Calling number identification using speech recognition
In a system such as an AUDIX® voice mail system or answering machine, a caller's telephone number is extracted from a recorded message using voice recognition. The called party initiates automatic...
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5495553 |
Recognizer for recognizing voice messages in pulse code modulated format
A recognition device and method for recognizing a voice message in the form of pulse code modulation (PCM) digital signals indicative of samples of the voice message. The device and method are...
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5477511 |
Portable documentation system
Disclosed are means and method to implement a portable and fully functional audio data recording and processing system. Voice data is received, converted to digital representations, compressed and...
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5475791 |
Method for recognizing a spoken word in the presence of interfering speech
A method for recognizing a spoken word in the presence of interfering speech, such as a system-generated voice prompt, begins by echo cancelling the voice prompt and any detected speech signal to...
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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...
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5465378 |
Report generating system
A preferred report generating system includes a computer (12) responsive to user-spoken inputs for selecting previously defined report material including text and graphics stored in memory...
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5457770 |
Speaker independent speech recognition system and method using neural network and/or DP matching technique
A system and method for recognizing an utterance of a speech in which each reference pattern stored in a dictionary is constituted by a series of phonemes of a word to be recognized, each phoneme...
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5454062 |
Method for recognizing spoken words
A method for identifying any one of a plurality of utterances using a programmed digital computing system, each utterance having an audible form representable by a sequence of speech elements each...
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5452397 |
Method and system for preventing entry of confusingly similar phases in a voice recognition system vocabulary list
A method and system prevent the entry of confusingly similar phrases (60) in a vocabulary list (10) of a speaker-dependent voice recognition system. The method first receives (20, 30, 50) and...
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5440663 |
Computer system for speech recognition
The invention concerns a computer system for speech recognition with a word table and a triphone table in its memory. In response to a new word not contained in the word table and which is...
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5432886 |
Speech recognition device for calculating a corrected similarity partially dependent on circumstances of production of input patterns
In a speech recognition device including a similarity calculator for calculating a usual similarity as a provisional similarity between an input pattern and prepared reference patterns, a...
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5428707 |
Apparatus and methods for training speech recognition systems and their users and otherwise improving speech recognition performance
A tutorial instructs how to use a word recognition system, such as one for speech recognition. It specifies a set of allowed response words for each of a plurality of states. It sends messages on...
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5420912 |
Telephone having portable voice control module for playing back speech or performing a hands-free telephone function
The operation and control of devices is made possible by a portable unit. Operation and control of devices, particularly telephone installations is a means of speech via a portable voice module. A...
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5408582 |
Method and apparatus adapted for an audibly-driven, handheld, keyless and mouseless computer for performing a user-centered natural computer language
The invention is a software driven methodology plus input processing circuit used to program a computer with instructions derived from user-spoken voice commands. Any "mathematical" or "logical"...
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5396542 |
Method for use by a telecommunications system in enabling improved attendant services
A method where a telecommunication system records a message spoken by a caller and plays the recorded message to a human attendant for use in routing an incoming call without the attendant having...
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5384833 |
Voice-operated service
In a system for allocating a user identifier to a user of a voice-operated service, the user is requested (20) to utter words in a set of requested words. A speech recognizer (2) compares (24) each...
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5377303 |
Controlled computer interface
Voice utterances are substituted for manipulation of a pointing device, the pointing device being of the kind which is manipulated to control motion of a cursor on a computer display and to...
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5377302 |
System for recognizing speech
A pattern recognition system particularly useful for recognizing speech or handwriting. An input signal is first filtered by a filter bank having two stages where the outputs of the first stage is...
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