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| Number | Title | Issue Date |
| 7389227 | High-speed search method for LSP quantizer using split VQ and fixed codebook of G.729 speech encoder A high-speed search method in a speech encoder using an order character of LSP (Line Spectrum Pair) parameters in an LSP parameter quantizer using SVQ (Split Vector Quantization) used in a low-speed transmission speech encoder, includes the steps of rearranging a co... | 06/17/2008 |
| 7383178 | System and method for speech processing using independent component analysis under stability constraints A system and method for separating a mixture of audio signal into desired audio signals (430) (e.g., speech) and a noise sign (440) is disclosed. Microphones (310, 320) are positioned to receive the mixed audio signals, and an independent compon... | 06/03/2008 |
| 7366662 | Separation of target acoustic signals in a multi-transducer arrangement The present invention provides a process for separating a good quality information signal from a noisy acoustic environment. The separation process uses a set of at least two spaced-apart transducers to capture noise and information components. The transducer signal... | 04/29/2008 |
| 7363218 | Method and apparatus for fast CELP parameter mapping An apparatus and method for mapping CELP parameters between a source codec and a destination codec. The apparatus includes an LSP mapping module, an adaptive codebook mapping module coupled to the LSP mapping module, and a fixed codebook mapping module coupled to th... | 04/22/2008 |
| 7356459 | Program-controlled household appliance and method of operating the appliance A household appliance with a simple to use selected operating language includes activating the programs by taking into account the special characteristics of specific languages. The household appliance includes a display unit that displays all information in a simpl... | 04/08/2008 |
| 7340394 | Using quality and bit count parameters in quality and rate control for digital audio An audio encoder regulates quality and bitrate with a control strategy. The strategy includes several features. First, an encoder regulates quantization using quality, minimum bit count, and maximum bit count parameters. Second, an encoder regulates quantization usi... | 03/04/2008 |
| 7333933 | Speech based status and control user interface customisable by the user The present invention provides a means for an end user to customize a speech-based user interface, such as those used in status and control for such applications as messaging, unified communications, automobile control, and many others. The invention consists of two... | 02/19/2008 |
| 7328151 | Audio decoder with dynamic adjustment of signal modification Methods and devices for dynamically adjusting a multi-band signal-modification profile based on a psychoacoustic model are disclosed. In one arrangement, the encoding parameter side information is used to estimate encoding noise of an encoded signal. The signal spec... | 02/05/2008 |
| 7321857 | Systems and methods for TV navigation with compressed voice-activated commands A method, apparatus and system that receives speech commands at a remote control device microphone, digitizes those input speech commands, compresses the digitized speech commands, multiplexes control commands with the compressed digitized speech commands, and trans... | 01/22/2008 |
| 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 |
| 7319959 | Multi-source phoneme classification for noise-robust automatic speech recognition A system and method are disclosed for processing an audio signal including separating the audio signal into a plurality of streams which group sounds from a same source prior to classification and analyzing each separate stream to determine phoneme-level classificat... | 01/15/2008 |
| 7313523 | Method and apparatus for assigning word prominence to new or previous information in speech synthesis A method and apparatus is provided for generating speech that sounds more natural. In one embodiment, word prominence and latent semantic analysis are used to generate more natural sounding speech. A method for generating speech that sounds more natural may comprise... | 12/25/2007 |
| 7313520 | Adaptive variable bit rate audio compression encoding An adaptive variable bit rate audio encoder and method that examines audio level information and detects various information in the audio data in a psychoacoustic model to create a quantization value and assign a mode tag to a single frame of audio. A bit rate is as... | 12/25/2007 |
| 7308403 | Compensation for utterance dependent articulation for speech quality assessment A method for objective speech quality assessment that accounts for phonetic contents, speaking styles or individual speaker differences by distorting speech signals under speech quality assessment. By using a distorted version of a speech signal, it is possible to c... | 12/11/2007 |
| 7308402 | Error resistant scalable audio coding partitioned for determining errors A scalable audio codec processes, quantizes and encodes audio signals into an embedded audio bitstream of bit-planes each having a data unit. The data unit has a beginning refinement bits partition, a second significance bits partition, a third sign boundary mark bi... | 12/11/2007 |
| 7305341 | Method of reflecting time/language distortion in objective speech quality assessment Disclosed is an objective speech quality assessment technique that reflects the impact of distortions which can dominate overall speech quality assessment by modeling the impact of such distortions on subjective speech quality assessment, thereby, accounting for lan... | 12/04/2007 |
| 7302394 | Front-end device independence for natural interaction platform Roughly described, a natural language interpretation system that provides commands to a back-end application in response to user input is modified to separate out user interaction functions into a user interaction subsystem. The user interaction subsystem can includ... | 11/27/2007 |
| 7302388 | Method and apparatus for detecting voice activity Method and apparatus detect voice activity for spectrum or power efficiency purposes. The method determines and tracks the instant, minimum and maximum power levels of the input signal. The method selects a first range of signals to be considered as noise, and a sec... | 11/27/2007 |
| 7299175 | Normalizing to compensate for block size variation when computing control parameter values for quality and rate control for digital audio An audio encoder regulates quality and bitrate with a control strategy. The strategy includes several features. First, an encoder regulates quantization using quality, minimum bit count, and maximum bit count parameters. Second, an encoder regulates quantization usi... | 11/20/2007 |
| 7295971 | Accounting for non-monotonicity of quality as a function of quantization in quality and rate control for digital audio An audio encoder regulates quality and bitrate with a control strategy. The strategy includes several features. First, an encoder regulates quantization using quality, minimum bit count, and maximum bit count parameters. Second, an encoder regulates quantization usi... | 11/13/2007 |
| 7295973 | Quality control quantization loop and bitrate control quantization loop for quality and rate control for digital audio An audio encoder regulates quality and bitrate with a control strategy. The strategy includes several features. First, an encoder regulates quantization using quality, minimum bit count, and maximum bit count parameters. Second, an encoder regulates quantization usi... | 11/13/2007 |
| 7295969 | Digital recording and playback system with voice recognition capability for concurrent text generation A recording and playback system is provided. The system includes an audio capturing device configured to receive an analog input and an encoder coupled to the audio capturing device configured to generate a digital signal based on the analog input. The system furthe... | 11/13/2007 |
| 7289950 | Extended finite state grammar for speech recognition systems An extended finite state grammar structure is generated from a finite state grammar. The extended finite state grammar structure includes word subgraphs representing a set of pre-defined word strings for words in the finite state grammar, and a set of all possible w... | 10/30/2007 |
| 7283952 | Correcting model bias during quality and rate control for digital audio An audio encoder regulates quality and bitrate with a control strategy. The strategy includes several features. First, an encoder regulates quantization using quality, minimum bit count, and maximum bit count parameters. Second, an encoder regulates quantization usi... | 10/16/2007 |
| 7283961 | High-quality speech synthesis device and method by classification and prediction processing of synthesized sound There is disclosed a speech processing device in which prediction taps for finding prediction values of the speech of high sound quality are extracted from the synthesized sound obtained on affording linear prediction coefficients and residual signals, generated fro... | 10/16/2007 |
| 7277848 | Measuring and using reliability of complexity estimates during quality and rate control for digital audio An audio encoder regulates quality and bitrate with a control strategy. The strategy includes several features. First, an encoder regulates quantization using quality, minimum bit count, and maximum bit count parameters. Second, an encoder regulates quantization usi... | 10/02/2007 |
| 7272564 | Method and apparatus for multimodal communication with user control of delivery modality A method and apparatus for providing multimodal communication outputs information, such as retrieved content, in a first modality. An output modality change command is generated, such as via a multimodal user input interface, or other suitable mechanism. A multimoda... | 09/18/2007 |
| 7266492 | Training machine learning by sequential conditional generalized iterative scaling A system and method facilitating training machine learning systems utilizing sequential conditional generalized iterative scaling is provided. The invention includes an expected value update component that modifies an expected value based, at least in part, upon a f... | 09/04/2007 |
| 7263482 | Accounting for non-monotonicity of quality as a function of quantization in quality and rate control for digital audio An audio encoder regulates quality and bitrate with a control strategy. The strategy includes several features. For example, an encoder selects a quantization level within a range of quantization levels, where the selecting accounts for non-monotonicity of quality m... | 08/28/2007 |
| 7263487 | Generating a task-adapted acoustic model from one or more different corpora The present invention generates a task-dependent acoustic model from a supervised task-independent corpus and further adapted it with an unsupervised task dependent corpus. The task-independent corpus includes task-independent training data which has an acoustic rep... | 08/28/2007 |
| 7260525 | Filtering of control parameters in quality and rate control for digital audio An audio encoder regulates quality and bitrate with a control strategy. The strategy includes several features. First, an encoder regulates quantization using quality, minimum bit count, and maximum bit count parameters. Second, an encoder regulates quantization usi... | 08/21/2007 |
| 7257533 | Database searching and retrieval using phoneme and word lattice A data structure is provided for annotating data files within a database. The annotation data comprises a phoneme and word lattice which allows the quick and efficient searching of data files within the database in response to a user's input query. The structure of ... | 08/14/2007 |
| 7251596 | Method and device for analyzing a wave signal and method and apparatus for pitch detection The present invention provides a unique wave-trigon transformation (WTT) method for performing transformation process over a wave signal. The present invention also provides a pitch detecting method and apparatus for detecting pitch based on the WTT process as well ... | 07/31/2007 |
| 7249016 | Quantization matrices using normalized-block pattern of digital audio Quantization matrices facilitate digital audio encoding and decoding. An audio encoder generates and compresses quantization matrices; an audio decoder decompresses and applies the quantization matrices. The invention includes several techniques and tools, which can... | 07/24/2007 |
| 7240011 | Controlling the listening horizon of an automatic speech recognition system for use in handsfree conversational dialogue Conversational dialog with a computer or other processor-based device without requiring push-to-talk functionality. In one embodiment, a computer-implemented method first determines that a user desires to engage in a dialog. Based thereon the method turns on a speec... | 07/03/2007 |
| 7231343 | Synonyms mechanism for natural language systems Roughly described, a natural language interface to a back-end application incorporates synonyms automatically added to user input to enhance the natural language interpretation. Synonyms can be learned from user input and written into a synonyms database. Their sele... | 06/12/2007 |
| 7231342 | Method, system, and computer program product in a logically partitioned data processing system for displaying messages in a management console's native language A method, system, and computer program product within a logically partitioned data processing system that includes multiple partitions and a management console are described for displaying messages in a language specified by the console. A language is specified by t... | 06/12/2007 |
| 7219065 | Emphasis of short-duration transient speech features A sound processor including a microphone (1), a pre-amplifier (2), a bank of N parallel filters (3), means for detecting short-duration transitions in the envelope signal of each filter channel, and means for applying gain to the outputs of thes... | 05/15/2007 |
| 7194409 | Method and system for preventing error amplification in natural language dialogues A method and system for allowing a user to interface to an interactive voice response system via natural language commands. The system plays a prompt that initiates user interaction. In certain embodiments, the system detects initial user speech, wherein the initial... | 03/20/2007 |
| 7191126 | Sound encoder and sound decoder performing multiplexing and demultiplexing on main codes in an order determined by auxiliary codes A sound encoder and sound decoder that encode and decode, respectively, variable length codes on a frame by frame basis, the coding including main codes and auxiliary codes in which auxiliary codes are multiplexed or demultiplexed in a same fixed order to determine ... | 03/13/2007 |
