Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Application No. | Application Title | Issue Date |
| 20120130713 | SYSTEMS, METHODS, AND APPARATUS FOR VOICE ACTIVITY DETECTION Systems, methods, apparatus, and machine-readable media for voice activity detection in a single-channel or multichannel audio signal are disclosed.... | 05/24/2012 |
| 20120109647 | System Enhancement of Speech Signals A system enhances speech by detecting a speaker's utterance through a first microphone positioned a first distance from a source of interference. A second microphone may detect the speaker's utterance at a different position. A monitoring device may estimate the power l... | 05/03/2012 |
| 20120084084 | Noise cancellation device for communications in high noise environments This invention presents a noise cancellation device for improved personal face-to-face and radio communications in high noise environments. The device comprises speech acquisition components, an audio signal processing module, a loudspeaker, and a radio interface. With ... | 04/05/2012 |
| 20120084085 | METHOD AND DEVICE FOR TRACKING BACKGROUND NOISE IN COMMUNICATION SYSTEM A method and a device for tracking background noise in a communication system are provided. The method includes: calculating a SNR of a current frame according to input audio signals; increasing a frame counter, and calculating tone features and signal steadiness featur... | 04/05/2012 |
| 20120053934 | TESTING A GRAMMAR USED IN SPEECH RECOGNITION FOR RELIABILITY IN A PLURALITY OF OPERATING ENVIRONMENTS HAVING DIFFERENT BACKGROUND NOISE Methods, systems, and products for testing a grammar used in speech recognition for reliability in a plurality of operating environments having different background noise that include: receiving recorded background noise for each of the plurality of operating environmen... | 03/01/2012 |
| 20120046944 | ENVIRONMENT RECOGNITION OF AUDIO INPUT The present disclosure introduces a new technique for environmental recognition of audio input using feature selection. In one embodiment, audio data may be identified using feature selection. A plurality of audio descriptors may be ranked by calculating a Fisher's disc... | 02/23/2012 |
| 20120022864 | METHOD AND DEVICE FOR CLASSIFYING BACKGROUND NOISE CONTAINED IN AN AUDIO SIGNAL Embodiments of methods and devices for classifying background noise contained in an audio signal are disclosed. In one embodiment, the device includes a module for extracting from the audio signal a background noise signal, termed the noise signal. Also included is a se... | 01/26/2012 |
| 20120022863 | METHOD AND APPARATUS FOR VOICE ACTIVITY DETECTION A method and apparatus for detecting voice activity are disclosed. The method of detecting voice activity is performed in a Continuous Listening environment which includes: extracting a feature parameter from a frame signal; determining whether the frame signal is a voi... | 01/26/2012 |
| 20120020505 | SIGNAL PROCESSING APPARATUS AND SIGNAL PROCESSING METHOD A signal processing apparatus and signal processing method capable of correctly detecting that a conversation is established even in a daily environment are provided. In signal processing apparatus (100), excitation separation section (130) separates a mix... | 01/26/2012 |
| 20120008752 | MULTI-PASS ECHO RESIDUE DETECTION WITH SPEECH APPLICATION INTELLIGENCE A method is provided for multi-pass echo residue detection. The method includes detecting audio data, and determining whether the audio data is recognized as speech. Additionally, the method categorizes the audio data recognized as speech as including an acceptable leve... | 01/12/2012 |
| 20120008802 | VOICE DETECTION FOR AUTOMATIC VOLUME CONTROLS AND VOICE SENSORS A voice detection system and method for automatic volume controls and voice sensors is disclosed. More specifically, the invention addresses a situation where the user's own voice undesirably affects the functionality of an automatic volume control for a two-way communi... | 01/12/2012 |
| 20120004909 | SPEECH AUDIO PROCESSING A speech processing engine is provided that in some embodiments, employs Kalman filtering with a particular speaker's glottal information to clean up an audio speech signal for more efficient automatic speech recognition.... | 01/05/2012 |
| 20110313763 | PICKUP SIGNAL PROCESSING APPARATUS, METHOD, AND PROGRAM PRODUCT According to one embodiment, a pickup signal processing apparatus includes microphones, a sound determining unit, a signal level calculating unit, a setting unit, and a calculating unit. The sound determining unit determines whether pickup signals picked up by the micro... | 12/22/2011 |
| 20110307253 | Speech and Noise Models for Speech Recognition An audio signal generated by a device based on audio input from a user may be received. The audio signal may include at least a user audio portion that corresponds to one or more user utterances recorded by the device. A user speech model associated with the user may be... | 12/15/2011 |
| 20110288860 | SYSTEMS, METHODS, APPARATUS, AND COMPUTER-READABLE MEDIA FOR PROCESSING OF SPEECH SIGNALS USING HEAD-MOUNTED MICROPHONE PAIR A noise cancelling headset for voice communications contains a microphone at each of the user's ears and a voice microphone. The headset shares the use of the ear microphones for improving signal-to-noise ratio on both the transmit path and the receive path.... | 11/24/2011 |
| 20110282663 | TRANSIENT NOISE REJECTION FOR SPEECH RECOGNITION A method of and system for transient noise rejection for improved speech recognition. The method comprises the steps of (a) receiving audio including user speech and at least some transient noise associated with the speech, (b) converting the received audio into digital... | 11/17/2011 |
| 20110257971 | Camera-Assisted Noise Cancellation and Speech Recognition Methods, system, and articles are described herein for receiving an audio input and a facial image sequence for a period of time, in which the audio input includes speech input from multiple speakers. The audio input is extracted based on the received facial image seque... | 10/20/2011 |
| 20110246198 | METHOD FOR VERYFYING THE IDENTITY OF A SPEAKER AND RELATED COMPUTER READABLE MEDIUM AND COMPUTER The present invention refers to a method for verifying the identity of a speaker based on the speakers voice comprising the steps of: a) receiving a voice utterance; b) using biometric voice data to verify (10) that the speakers voice corresponds to the speaker t... | 10/06/2011 |
| 20110246193 | SIGNAL SEPARATION METHOD, AND COMMUNICATION SYSTEM SPEECH RECOGNITION SYSTEM USING THE SIGNAL SEPARATION METHOD A method for signal separation, communication system, and voice recognition system using the method are disclosed. The method which is performed by an apparatus for signal separation includes receiving a mixed signal, wherein a first signal based on a first sound source... | 10/06/2011 |
| 20110238418 | Method and Device for Tracking Background Noise in Communication System A method and a device for tracking background noise in a communication system, where the method includes: calculating a SNR of a current frame according to input audio signals; increasing a frame counter, and calculating tone features and signal steadiness features of t... | 09/29/2011 |
| 20110235812 | SOUND INFORMATION DETERMINING APPARATUS AND SOUND INFORMATION DETERMINING METHOD According to one embodiment, a sound information determining apparatus includes: a holding module configured hold a plurality of determining techniques, each of which determines, with respect to a noise of each type that may be present in an input audio signal, whether ... | 09/29/2011 |
| 20110238417 | SPEECH DETECTION APPARATUS According to one embodiment, a speech detection apparatus includes a first acoustic signal analyzing unit configured to analyze a frequency spectrum of a first acoustic signal, and a feature extracting unit configured to remove a frequency spectrum of the first acoustic... | 09/29/2011 |
| 20110238416 | Acoustic Model Adaptation Using Splines Described is a technology by which a speech recognizer is adapted to perform in noisy environments using linear spline interpolation to approximate the nonlinear relationship between clean speech, noise, and noisy speech. Linear spline parameters that minimize the error... | 09/29/2011 |
| 20110231187 | VOICE PROCESSING DEVICE, VOICE PROCESSING METHOD AND PROGRAM A voice processing device includes a zone detection unit which detects a voice zone including a voice signal or a non-steady sound zone including a non-steady signal other than the voice signal from an input signal and a filter calculation unit that calculates a filter ... | 09/22/2011 |
| 20110231186 | SPEECH DETECTION METHOD A speech detection method is presented, which includes the following steps. A first voice captured device samples a first signal and a second voice captured device samples a second signal. The first voice captured device is closer to a speech signal source than the seco... | 09/22/2011 |
| 20110224979 | Enhancing Speech Recognition Using Visual Information Speech recognition device uses visual information to narrow down the range of likely adaptation parameters even before a speaker makes an utterance. Images of the speaker and/or the environment are collected using an image capturing device, and then processed to extract... | 09/15/2011 |
| 20110224980 | SPEECH RECOGNITION SYSTEM AND SPEECH RECOGNIZING METHOD A speech recognition system according to the present invention includes a sound source separating section which separates mixed speeches from multiple sound sources from one another; a mask generating section which generates a soft mask which can take continuous values ... | 09/15/2011 |
| 20110213612 | Acoustic Signal Classification System A system classifies the source of an input signal. The system determines whether a sound source belongs to classes that may include human speech, musical instruments, machine noise, or other classes of sound sources. The system is robust, performing classification despi... | 09/01/2011 |
| 20110213611 | METHOD AND DEVICE FOR CONTROLLING THE TRANSPORT OF AN OBJECT TO A PREDETERMINED DESTINATION A method and a device control the transport of an object to a predetermined destination. The object is provided with information on a destination to which the object is to be transported. The destination information with which the object is provided is inputted into a s... | 09/01/2011 |
| 20110210931 | FINGER-WORN DEVICE AND INTERACTION METHODS AND COMMUNICATION METHODS Disclosed herein are finger-worn devices in various embodiments, and related systems, interfaces and methods of use. In some embodiments, a finger-worn device may be connected and disconnected from other devices. In some embodiments, a finger-worn device may relay tacti... | 09/01/2011 |
| 20110208520 | VOICE ACTIVITY DETECTION BASED ON PLURAL VOICE ACTIVITY DETECTORS A voice activity detection (VAD) system includes a first voice activity detector, a second voice activity detector and control logic. The first voice activity detector is included in a device and produces a first VAD signal. The second voice activity detector is located... | 08/25/2011 |
| 20110208521 | Hidden Markov Model for Speech Processing with Training Method A method, system and apparatus are shown for identifying non-language speech sounds in a speech or audio signal. An audio signal is segmented and feature vectors are extracted from the segments of the audio signal. The segment is classified using a hidden Markov model (... | 08/25/2011 |
| 20110202340 | SPEAKER VERIFICATION A speaker verification method is proposed that first builds a general model of user utterances using a set of general training speech data. The user also trains the system by providing a training utterance, such as a passphrase or other spoken utterance. Then in a test ... | 08/18/2011 |
| 20110184734 | METHOD AND APPARATUS FOR VOICE ACTIVITY DETECTION, AND ENCODER A method and an apparatus for Voice Activity Detection (VAD) and an encoder are provided. The method for VAD includes: acquiring a fluctuant feature value of a background noise when an input signal is the background noise, in which the fluctuant feature value is used to... | 07/28/2011 |
| 20110184724 | SPEECH RECOGNITION Presented is a method and system for speech recognition. The method includes determining noise level in an environment, comparing the determined noise level with a predetermined noise level threshold value, using a first set of grammar for speech recognition, if the det... | 07/28/2011 |
| 20110178799 | METHODS AND SYSTEMS FOR IDENTIFYING SPEECH SOUNDS USING MULTI-DIMENSIONAL ANALYSIS Methods and systems of identifying speech sound features within a speech sound are provided. The sound features may be identified using a multi-dimensional analysis that analyzes the time, frequency, and intensity at which a feature occurs within a speech sound, and the... | 07/21/2011 |
| 20110178800 | Distortion Measurement for Noise Suppression System The present technology measures distortion introduced by a noise suppression system. The distortion may be measured as the difference between a noise-reduced speech signal and an estimated idealized noise reduced reference (EINRR). The EINRR may be determined from a spe... | 07/21/2011 |
| 20110166856 | NOISE PROFILE DETERMINATION FOR VOICE-RELATED FEATURE Systems, methods, and devices for noise profile determination for a voice-related feature of an electronic device are provided. In one example, an electronic device capable of such noise profile determination may include a microphone and data processing circuitry. When ... | 07/07/2011 |
| 20110161078 | PITCH MODEL FOR NOISE ESTIMATION Pitch is tracked for individual samples, which are taken much more frequently than an analysis frame. Speech is identified based on the tracked pitch and the speech components of the signal are removed with a time-varying filter, leaving only an estimate of a time-varyi... | 06/30/2011 |
| 20110153321 | SYSTEMS AND METHODS FOR IDENTIFYING SPEECH SOUND FEATURES Systems and methods for detecting features in spoken speech and processing speech sounds based on the features are provided. One or more features may be identified in a speech sound. The speech sound may be modified to enhance or reduce the degree to which the feature a... | 06/23/2011 |
