Quotables
"The Americans have need of the telephone, but we do not. We have plenty of messenger boys."
Sir William Preece, chief engineer, British Post Office ; 1878
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| Number | Title | Issue Date |
| 8175876 | System and method for an endpoint detection of speech for improved speech recognition in noisy environments According to a disclosed embodiment, an endpointer determines the background energy of a first portion of a speech signal, and a cepstral computing module extracts one or more features of the first portion. The endpointer calculates an average distance of the first ... | 05/08/2012 |
| 8131546 | System and method for adaptive sentence boundary disambiguation Embodiments disclosed herein provide a system and method useful for pre-processing non-sentence text extracted from business documents (e.g., malformed bulleted lists, runaway sentence identification, spatially separated data, etc.). One embodiment includes two heur... | 03/06/2012 |
| 8117032 | Noise playback enhancement of prerecorded audio for speech recognition operations A speech processing method including the step of identifying prerecorded audio comprising an original speech segment and a corresponding original noise segment. An audio stream can be generated from the prerecorded audio. The audio stream can comprise a stream speec... | 02/14/2012 |
| 8099277 | Speech-duration detector and computer program product therefor A speech-duration detector includes a starting-end detecting unit that detects a starting end of a first duration where the characteristic exceeds a threshold value as a starting end of a speech-duration, when the first duration continues for a first time length; a ... | 01/17/2012 |
| 7991614 | Correction of matching results for speech recognition A speech recognition system includes the following: a feature calculating unit; a sound level calculating unit that calculates an input sound level in each frame; a decoding unit that matches the feature of each frame with an acoustic model and a linguistic model, a... | 08/02/2011 |
| 7917362 | Method and apparatus for determining a bit boundary of a repetition-coded signal A method for determining a bit boundary of a repetition-coded signal including bits each having a plurality of epochs includes (a) counting the epochs repeatedly from an initial number to a predetermined number in a predetermined time, (b) sensing sign changes in th... | 03/29/2011 |
| 7680660 | Voice analysis device, voice analysis method and voice analysis program A voice analysis method and device are provided whereby processing can be performed in real time and an indefinitely large number of speakers can be coped with. A computer-executable method of voice analysis is for detecting boundaries of phonemes from input voice, ... | 03/16/2010 |
| 7487090 | Service for providing speaker voice metrics A method of providing voice metrics over an established telephone call between a user and a subscriber can include receiving voice information from the user over the call and determining biometric information from the voice information for the user. The method furth... | 02/03/2009 |
| 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 |
| 7353173 | System and method for Mandarin Chinese speech recognition using an optimized phone set The present invention comprises a system and method for implementing a Mandarin Chinese speech recognizer with an optimized phone set, and may include a recognizer configured to compare input speech data to phone strings from a vocabulary dictionary that is implemen... | 04/01/2008 |
| 7353172 | System and method for cantonese speech recognition using an optimized phone set The present invention comprises a system and method for implementing a Cantonese speech recognizer with an optimized phone set, and may include a recognizer configured to compare input speech data to phone strings from a vocabulary dictionary that is implemented acc... | 04/01/2008 |
| 7353174 | System and method for effectively implementing a Mandarin Chinese speech recognition dictionary The present invention comprises a system and method for effectively implementing a Mandarin Chinese speech recognition dictionary, and may include a recognizer configured to compare input speech data to phone strings from a vocabulary dictionary that is implemented ... | 04/01/2008 |
| 7349330 | Packet receiver with the influence of jitter and packet losses reduced before a buffer becomes idle due to data delays and packet receiving method using the same A packet receiver includes a packet memory circuit for temporarily storing received packets in a FIFO (First-In First-Out) fashion in the form of a queue. A read start threshold setting circuit sets, with respect to the length of the queue, a read start threshold at... | 03/25/2008 |
| 7337107 | Perceptual harmonic cepstral coefficients as the front-end for speech recognition Pitch estimation and classification into voiced, unvoiced and transitional speech were performed by a spectro-temporal auto-correlation technique. A peak picking formula was then employed. A weighting function was then applied to the power spectrum. The harmonics we... | 02/26/2008 |
| 7334191 | Segmentation and detection of representative frames in video sequences A method for organizing a sequence of video frames includes selecting one of the frames in the sequence as an initial frame in a first portion of a segment of the sequence and adding further frames in the sequence, subsequent the initial frame, to the first portion,... | 02/19/2008 |
| 7319956 | Method and apparatus to perform speech reference enrollment based on input speech characteristics A speech reference enrollment method involves requesting a user speak a word; detecting a first utterance; requesting the user speak the word; detecting a second utterance; determining a first similarity between the first utterance and the second utterance; when the... | 01/15/2008 |
| 7277853 | System and method for a endpoint detection of speech for improved speech recognition in noisy environments According to a disclosed embodiment, an endpointer determines the background energy of a first portion of a speech signal, and a cepstral computing module extracts one or more features of the first portion. The endpointer calculates an average distance of the first ... | 10/02/2007 |
| 7249015 | Classification of audio as speech or non-speech using multiple threshold values A portion of an audio signal is separated into multiple frames from which one or more different features are extracted. These different features are used, in combination with a set of rules, to classify the portion of the audio signal into one of multiple different ... | 07/24/2007 |
| 7236929 | Echo suppression and speech detection techniques for telephony applications Various methods and apparatus are described for implementing effective echo suppression in a wide variety of telephony system architectures. These methods and apparatus include broadband and multi-band techniques for speech detection, estimation of near-end transmis... | 06/26/2007 |
| 7231346 | Speech section detection apparatus A speech section detection apparatus capable of reliably detecting a speech section even for a word containing a glottal stop sound or for a word containing a succession of “s” column sounds or “h” column sounds (sounds in the third column or the sixth colum... | 06/12/2007 |
| 7231190 | Method and apparatus for terminating reception in a wireless communication system A receiver front end (302) receives a known Stop Waveform (114) comprising a predetermined symbol pattern on a voice channel, the Stop Waveform sent at the end of a transmission. A processor (304) coupled to the receiver front end terminates ( | 06/12/2007 |
| 7228274 | Recognition of identification patterns The invention relates to a method and to a device for identifying markers in data blocks. The method is characterized in that a number of data blocks (201a 201n) are received by a receiver (202) and one specific data block from the... | 06/05/2007 |
| 7225127 | Method for recognizing speech Method for recognizing speech includes receiving a speech phrase, generating a signal being representative to the speech phrase, pre-processing and storing the signal with respect to a determined set of rules, generating from the pre-processed signal at least one se... | 05/29/2007 |
| 7222068 | Audio signal encoding method combining codes having different frame lengths and data rates A system for transmitting audio signals over a telecommunications link generates the signals as two or more alternative feeds, for example at different data rates. The two feeds are encoded using coding methods having a frame structure with different frame lengths. ... | 05/22/2007 |
| 7216075 | Speech recognition method and apparatus with noise adaptive standard pattern In a speech recognition method, at least two standard feature vector series having different signal-to-noise ratios (SNRs) are prepared in advance for each category. Then, an SNR is calculated from an input speech signal, and a noise adaptive standard feature vector... | 05/08/2007 |
| 7162418 | Presentation-quality buffering process for real-time audio A buffering process for real-time digital audio is provided to effect of network “jitter” from inconsistent network packet delivery rates. The buffering algorithm is particularly useful for audio data including distinct bursts separated by silence, such as speec... | 01/09/2007 |
| 7081915 | Control of video conferencing using activity detection A video conferencing system employs a plurality of video conferencing stations, each of which includes a voice activity detector. When the images of remote conferees are displayed on a video conference station, the voice activity detection is utilized in order to de... | 07/25/2006 |
| 7072835 | Method and apparatus for speech recognition A method and apparatus for speech recognition of the present application has a process to collate, with an input utterance, an acoustic model corresponding to a hypothesis to be expressed by the connection of utterance segments, such as phonemes or syllables, and de... | 07/04/2006 |
| 7072686 | Voice controlled multimedia and communications device A portable multimedia and communications device can include a transducive element for receiving sound. The device also can include a base unit having a plurality of multimedia units and a processor executing a speech recognition engine for recognizing user speech. E... | 07/04/2006 |
| 7072829 | Speech recognition from concurrent visual and audible inputs With respect to each of codes corresponding to code vectors in a code book stored in a code book storage section, an expectation degree storage section stores an expectation degree at which observation is expected when an integrated parameter with respect to a word ... | 07/04/2006 |
| 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 |
| 7043006 | Distributed call progress tone detection system and method of operation thereof A distributed call progress tone detection system and method of operation thereof. In one embodiment, the system includes a switching partition having line interface modules, a call progress tone detector configured to perform call progress tone detection analysis, ... | 05/09/2006 |
| 7035799 | Method and device for voice recognition A method and a device are set forth which make it possible to set an accuracy in a voice recognition process. To this end, system parameters of the voice recognition system are determined using an input quantity via a mapping specification, and the voice recognition... | 04/25/2006 |
| 7020448 | Method for detecting a tone signal through digital signal processing A method for detecting a tone signal having a predetermined tone frequency includes receiving an analog communication signal, using a sampling frequency to convert the analog communication signal into a digital communication signal, selecting a plurality of signal s... | 03/28/2006 |
| 6954727 | Reducing artifact generation in a vocoder A method of reducing sinusoidal artifact generation in a vocoder. In one embodiment, the present invention first receives a determined input energy threshold value. The input energy threshold value is the value below which it is believed that a suspected noise-induc... | 10/11/2005 |
| 6947892 | Method and arrangement for speech recognition A method and arrangement for speech recognition wherein a volume distance is determined between recognized words and the pauses lying between them. When the volume distance of a word is lower than a predetermined threshold, the word is evaluated as being incorrectly... | 09/20/2005 |
| 6937977 | Method and apparatus for processing an input speech signal during presentation of an output audio signal A start of an input speech signal is detected during presentation of an output audio signal and an input start time, relative to the output audio signal, is determined. The input start time is then provided for use in responding to the input speech signal. In anothe... | 08/30/2005 |
| 6934675 | Methods and systems for enabling speech-based internet searches Merged “grammars” derived from statistical indicators (e.g., N-grams and cohorts) are used to enable speech-based, Internet searches. ... | 08/23/2005 |
| 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 feature vectors are processed by applying a speaker dependent transform wh... | 07/26/2005 |
| 6873953 | Prosody based endpoint detection A method and apparatus are provided for performing prosody based endpoint detection of speech in a speech recognition system. Input speech represents an utterance, which has an intonation pattern. An end-of-utterance condition is identified based on prosodic paramet... | 03/29/2005 |
