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| Number | Title | Issue Date |
| 8145486 | Indexing apparatus, indexing method, and computer program product Acoustic models to provide features to a speech signal are created based on speech features included in regions where similarities of acoustic models created based on speech features in a certain time length are equal to or greater than a predetermined value. Featur... | 03/27/2012 |
| 8065146 | Detecting an answering machine using speech recognition An answering machine detection module is used to determine whether a call recipient is an actual person or an answering machine. The answering machine detection module includes a speech recognizer and a call analysis module. The speech recognizer receives an audible... | 11/22/2011 |
| 8060367 | Spatially indexed grammar and methods of use Improved systems and methods are described which simplify the individual's interaction with speech recognition software, expand the database of spoken point names that can be recognized, and increase the quality and therefore likelihood of success of speech recognit... | 11/15/2011 |
| 7970611 | Speaker authentication in digital communication networks Example embodiments provide a speaker authentication technology that compensates for mismatches between enrollment process conditions and test process conditions using correction parameters or correction models, which allow for correcting one of the test voice chara... | 06/28/2011 |
| 7945444 | Optimization of detection systems using a detection error tradeoff analysis criterion In detection systems, such as speaker verification systems, for a given operating point range, with an associated detection “cost”, the detection cost is preferably reduced by essentially trading off the system error in the area of interest with areas essentiall... | 05/17/2011 |
| 7831424 | Target specific data filter to speed processing A method is presented which reduces data flow and thereby increases processing capacity while preserving a high level of accuracy in a distributed speech processing environment for speaker detection. The method and system of the present invention includes filtering ... | 11/09/2010 |
| 7831423 | Replacing text representing a concept with an alternate written form of the concept A system enables a transcriptionist to replace a first written form (such as an abbreviation) of a concept with a second written form (such as an expanded form) of the same concept. For example, the system may display to the transcriptionist a draft document produce... | 11/09/2010 |
| 7761296 | System and method for rescoring N-best hypotheses of an automatic speech recognition system A system and method for rescoring the N-best hypotheses from an automatic speech recognition system by comparing an original speech waveform to synthetic speech waveforms that are generated for each text sequence of the N-best hypotheses. A distance is calculated fr... | 07/20/2010 |
| 7603274 | Method and apparatus for determining the possibility of pattern recognition of time series signal A method and apparatus for determining the possibility of pattern recognition of time series signal independent of a pattern recognition ratio is provided. The method for determining the possibility of pattern recognition of time series signal includes extracting a ... | 10/13/2009 |
| 7567901 | Bio-phonetic multi-phrase speaker identity verification Systems and methods for bio-phonetic multi-phrase speaker identity verification are disclosed. Generally, a speaker identity verification engine generates a dynamic phrase including at least one dynamically-generated word. The speaker identity verification engine pr... | 07/28/2009 |
| 7447632 | Voice authentication system A voice authentication system includes: a standard template storage part 17 in which a standard template that is generated from a registered voice of an authorized user and featured with a voice characteristic of the registered voice is stored preliminarily i... | 11/04/2008 |
| 7424425 | Optimization of detection systems using a detection error tradeoff analysis criterion In detection systems, such as speaker verification systems, for a given operating point range, with an associated detection “cost”, the detection cost is preferably reduced by essentially trading off the system error in the area of interest with areas essentiall... | 09/09/2008 |
| 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 |
| 7401017 | Adaptive multi-pass speech recognition system Method and apparatus for multi-pass speech recognition. An input device receives spoken input. A processor performs a first pass speech recognition technique on the spoken input and forms first pass results. The first pass results include a number of alternative spe... | 07/15/2008 |
| 7386448 | Biometric voice authentication A system and method enrolls a speaker with an enrollment utterance and authenticates a user with a biometric analysis of an authentication utterance, without the need for a PIN (Personal Identification Number). During authentication, the system uses the same authent... | 06/10/2008 |
| 7376434 | Adaptable communication techniques for electronic devices Improved approaches for users of electronic devices to communicate with one another are disclosed. The electronic devices have audio and/or textual output capabilities. The improved approaches can enable users to communicate in different ways depending on device con... | 05/20/2008 |
| 7373297 | Automated speech recognition filter An automated speech recognition filter is disclosed. The automated speech recognition filter device provides a speech signal to an automated speech platform that approximates an original speech signal as spoken into a transceiver by a user. In providing the speech s... | 05/13/2008 |
| 7369988 | Method and system for voice-enabled text entry A method and system for voice enabled text entry. The method includes receiving a first user-entry with a communications device and creating a transient grammar set as a result of receiving the first user-entry, where the transient grammar set is based on the first ... | 05/06/2008 |
| 7359884 | Method and apparatus for processing usage rights expressions A system and method for processing a rights expression for association with an item for use in a system for controlling use of the item in accordance with the rights expression. A rights expression is specified in a conventional manner in an original format. An inte... | 04/15/2008 |
| 7333085 | Handheld electronic device with text disambiguation A handheld electronic device includes a reduced QWERTY keyboard and is enabled with disambiguation software. The device provides output in the form of a default output and a number of variants. The output is based largely upon the frequency, i.e., the likelihood tha... | 02/19/2008 |
| 7324083 | Handheld electronic device with text disambiguation A handheld electronic device includes a reduced QWERTY keyboard and is enabled with disambiguation software. The device provides output in the form of a default output and a number of variants. The output is based largely upon the frequency, i.e., the likelihood tha... | 01/29/2008 |
| 7318032 | Speaker recognition method based on structured speaker modeling and a “Pickmax” scoring technique A technique for improved score calculation and normalization in a framework of recognition with phonetically structured speaker models. The technique involves determining, for each frame and each level of phonetic detail of a target speaker model, a non-interpolated... | 01/08/2008 |
| 7312726 | Handheld electronic device with text disambiguation A handheld electronic device includes a reduced QWERTY keyboard and is enabled with disambiguation software. The device provides output in the form of a default output and a number of variants. The output is based largely upon the frequency, i.e., the likelihood tha... | 12/25/2007 |
| 7313525 | Method and system for bookmarking navigation points in a voice command title platform A method and system for identifying saving and utilizing bookmarks in a voice-command platform. The system of the invention provides a user of the voice command platform with a list of bookmark names that are appropriate for the application. Once a user selects a bo... | 12/25/2007 |
| 7292979 | Time ordered indexing of audio data Methods and apparatuses in which attributes including one or more types of accents and one or more types of human languages from an audio information stream are identified. Each identified attribute from the audio information stream is encoded into a time ordered in... | 11/06/2007 |
| 7272565 | System and method for monitoring individuals A system and method for monitoring individuals using voice print matching to match monitored speech with stored voice prints is disclosed. Voice prints of individuals are obtained and stored in a central repository for use by authorized agencies or other entity that... | 09/18/2007 |
| 7236931 | Systems and methods for automatic acoustic speaker adaptation in computer-assisted transcription systems The invention is a system and method for automatic acoustic speaker adaptation in an automatic speech recognition assisted transcription system. Partial transcripts of audio files are generated by a transcriptionist. A topic language model is generated from the part... | 06/26/2007 |
| 7224981 | Speech recognition of mobile devices Speech recognition in mobile processor-based devices may be improved by using location information. Location information may be derived from on-board hardware or from information provided remotely. The location information may assist in a variety of ways in improvin... | 05/29/2007 |
| 7216077 | Lattice-based unsupervised maximum likelihood linear regression for speaker adaptation Methods and arrangements using lattice-based information for unsupervised speaker adaptation. By performing adaptation against a word lattice, correct models are more likely to be used in estimating a transform. Further, a particular type of lattice proposed herein ... | 05/08/2007 |
| 7197456 | On-line parametric histogram normalization for noise robust speech recognition A method for improving noise robustness in speech recognition, wherein a front-end is used for extracting speech feature from an input speech and for providing a plurality of scaled spectral coefficients. The histogram of the scaled spectral coefficients is normaliz... | 03/27/2007 |
| 7177808 | Method for improving speaker identification by determining usable speech Method for improving speaker identification by determining usable speech. Degraded speech is preprocessed in a speaker identification (SID) process to produce SID usable and SID unusable segments. Features are extracted and analyzed so as to produce a matrix of opti... | 02/13/2007 |
| 7146315 | Multichannel voice detection in adverse environments A multichannel source activity detection system, e.g., a voice activity detection (VAD) system, and method that exploits spatial localization of a target audio source is provided. The method includes the steps of receiving a mixed sound signal by at least two microp... | 12/05/2006 |
| 7089178 | Multistream network feature processing for a distributed speech recognition system A distributed voice recognition system and method for obtaining acoustic features and speech activity at multiple frequencies by extracting high frequency components thereof on a device, such as a subscriber station and transmitting them to a network server having m... | 08/08/2006 |
| 7054812 | Database annotation and retrieval A system is provided for determining a sequence of sub-word units representative of at least two words output by a word recognition unit in response to an input word to be recognized. In a preferred embodiment, the word alternatives output by the recognition unit ar... | 05/30/2006 |
| 7054811 | Method and system for verifying and enabling user access based on voice parameters A system for verifying and enabling user access, which includes a voice registration unit for providing a substantially unique and initial identification of each of a plurality of the speaker/users by finding the speaker/user's voice parameters in a voice registrati... | 05/30/2006 |
| 7050973 | Speaker recognition using dynamic time warp template spotting An improved template spotting technique may be implemented as part of text dependent speaker verification system to authenticate a user of a wireless communication device. This technique may be suitable for use in noisy environments and for wireless communication de... | 05/23/2006 |
| 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 the speech input terminal comprises speech input unit, a unit for creat... | 05/23/2006 |
| 7035797 | Data-driven filtering of cepstral time trajectories for robust speech recognition A method and apparatus for speech processing in a distributed speech recognition system having a front-end and a back-end. The speech processing steps in the front-end are as follows: extracting speech features from a speech signal and normalizing the speech feature... | 04/25/2006 |
| 6996527 | Linear discriminant based sound class similarities with unit value normalization A common requirement in automatic speech recognition is to recognize a set of words for any speaker without training the system for each new speaker. A speech recognition system is provided utilizing linear discriminant based phonetic similarities with inter-phoneti... | 02/07/2006 |
| 6963759 | Speech recognition technique based on local interrupt detection In a wireless communication system, local detection of an interrupt indicator during a voice communication between a user of a subscriber unit and another person is provided. Responsive to the interrupt indicator, a portion of a speech recognition element is activat... | 11/08/2005 |
