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| Number | Title | Issue Date |
| 7672834 | Method and system for detecting and temporally relating components in non-stationary signals A method detects components of a non-stationary signal. The non-stationary signal is acquired and a non-negative matrix of the non-stationary signal is constructed. The matrix includes columns representing features of the non-stationary signal at different instances... | 03/02/2010 |
| 7415392 | System for separating multiple sound sources from monophonic input with non-negative matrix factor deconvolution A method and system separates components in individual signals, such as time series data streams. A single sensor acquires concurrently multiple individual signals. Each individual signal is generated by a different source. An input non-negative matrix representing ... | 08/19/2008 |
| 7395078 | Voice over short message service A method of sending a voice message via a mobile communication device, said method involving: receiving an utterance from a user of the mobile communication device; generating a non-text representation of the received utterance; inserting the non-text representation... | 07/01/2008 |
| 7386695 | Storage system with multiple copy targeting A storage controller, cooperable with host computer apparatus, and a plurality of controlled storage apparatus, comprises a host write component operable to write a data object to a source data image at one of the plurality of controlled storage apparatus; a first c... | 06/10/2008 |
| 7360048 | Storage system with multiple copy targeting and disk failure protection A method and apparatus is disclosed in which a storage controller cooperable with a host and a plurality of controlled storage is provided to localize an impact of a failure to a target disk in an affected segment. The storage controller includes a host write compon... | 04/15/2008 |
| 7343542 | Methods and apparatuses for variable length encoding Methods and apparatuses for variable length encoding using a vector processing unit. In one aspect of the invention, a method for execution by a microprocessor to perform variable length encoding includes: receiving a plurality of parameters, each of the plurality o... | 03/11/2008 |
| 7343284 | Method and system for speech processing for enhancement and detection A method for discriminating noise from signal in a noise-contaminated signal involves decomposing a frame of samples of the signal into decorrelated components, and using a difference between probability distributions of the noise contributions and the signal contri... | 03/11/2008 |
| 7283965 | Delivery and transmission of dolby digital AC-3 over television broadcast Methods and apparatus for broadcasting high quality audio “studio direct” with the same digital information employed in the studio by the video producer with AC-3 digital audio signals for broadcast to integrated receiver decoders (IRD). The methods and apparatu... | 10/16/2007 |
| 7275036 | Apparatus and method for coding a time-discrete audio signal to obtain coded audio data and for decoding coded audio data A time-discrete audio signal is processed to provide a quantization block with quantized spectral values. Furthermore, an integer spectral representation is generated from the time-discrete audio signal using an integer transform algorithm. The quantization block ha... | 09/25/2007 |
| 7269557 | Coarticulated concatenated speech Described are methods and systems for reducing the audible gap in concatenated recorded speech, resulting in more natural sounding speech in voice applications. The sound of concatenated, recorded speech is improved by also coarticulating the recorded speech. The re... | 09/11/2007 |
| 7266781 | Method and apparatus for generating a graphical display report A method and apparatus for generating a graphical display report. The method includes representing a plurality of events as one or more icons; and positioning the icons inside two or more concentric circles defining at least an outer circle and an inner circle dispo... | 09/04/2007 |
| 7249014 | Apparatus, methods and articles incorporating a fast algebraic codebook search technique An efficient method for codebook search, employed in speech coding, uses an optimal pulse-position grouping and a split track arrangement, based on a likelihood estimator. Also disclosed are codecs, mobile voice communication devices, telecommunications equipment an... | 07/24/2007 |
| 7240207 | Fingerprinting media entities employing fingerprint algorithms and bit-to-bit comparisons A system and methods for the creation, management, and distribution of media entity fingerprinting are provided. In connection with a system that convergently merges perceptual and digital signal processing analysis of media entities for purposes of classifying the ... | 07/03/2007 |
| 7239253 | Codec system and method A sound codec including a compression portion and a decompression portion. The compression portion separates the incoming sound packet bandwidth into frequency sub-bands using a bank of infinite impulse response (IIR) filters. In accordance with the invention, the l... | 07/03/2007 |
| 7205910 | Signal encoding apparatus and signal encoding method, and signal decoding apparatus and signal decoding method A signal encoding apparatus (10) limits an inputted time series signal to a low frequency band signal having a certain cut-off frequency or less to include the low frequency band signal into code train for outputting encoded low frequency band code train. In ... | 04/17/2007 |
| 7181297 | System and method for delivering customized audio data A method for providing customized audio data products that includes the steps of (1) storing a machine readable hearing profile for a customer, (2) accepting via a data input device or data network for example, machine readable orders from the customer for a particu... | 02/20/2007 |
| 7146037 | VLSI neural fuzzy classifier for handwriting recognition A handwriting recognition device using fuzzy logic and cellular neural network for unconstrained handwritten numeral classification is provided. The current mode VLSI classifier has a I/O circuit for inputting and outputting a plurality of membership functions. An e... | 12/05/2006 |
| 7123652 | Sampled data digital filtering system A digital filtering system for filtering sample data includes a delay network for delaying input sample data to provide multiple delayed sample data outputs. The filtering system also includes a filter network represented by a decomposed coefficient weighting matrix... | 10/17/2006 |
| 7116834 | System and method for progressively transforming and coding digital data A system and method facilitating progressively transforming and coding digital pictures is provided. The present invention via employment of a multi-resolution lapped transform provides for progressive rendering as well as mitigation of blocking artifacts and ringin... | 10/03/2006 |
| 7110610 | System and method for progressively transforming and coding digital data A system and method facilitating progressively transforming and coding digital pictures is provided. The present invention via employment of a multi-resolution lapped transform provides for progressive rendering as well as mitigation of blocking artifacts and ringin... | 09/19/2006 |
| 7099516 | System and method for progressively transforming and coding digital data A system and method facilitating progressively transforming and coding digital pictures is provided. The present invention via employment of a multi-resolution lapped transform provides for progressive rendering as well as mitigation of blocking artifacts and ringin... | 08/29/2006 |
| 7095899 | System and method for progressively transforming and coding digital data A system and method facilitating progressively transforming and coding digital pictures is provided. The present invention via employment of a multi-resolution lapped transform provides for progressive rendering as well as mitigation of blocking artifacts and ringin... | 08/22/2006 |
| 7080253 | Audio fingerprinting A system and methods for the creation, management, and distribution of media entity fingerprinting are provided. In connection with a system that convergently merges perceptual and digital signal processing analysis of media entities for purposes of classifying the ... | 07/18/2006 |
| 7065338 | Method, device and program for coding and decoding acoustic parameter, and method, device and program for coding and decoding sound In coding and decoding an acoustic parameter, a weighted vector is generated by multiplying a code vector output in a past frame and a code vector selected in a present frame by weighting factors respectively selected from a factor code book and adding the products ... | 06/20/2006 |
| 7062445 | Quantization loop with heuristic approach A quantizer finds a quantization threshold using a quantization loop with a heuristic approach. Following the heuristic approach reduces the number of iterations in the quantization loop required to find an acceptable quantization threshold, which instantly improves... | 06/13/2006 |
| 7062430 | Designing boundary filters for a biorthogonal filter bank A signal processing device includes a biorthogonal filter bank that processes a finite length signal including a left boundary and a right boundary. The biorthogonal filter bank includes an analysis filter bank. The analysis filter bank includes one or more left bou... | 06/13/2006 |
| 7050980 | System and method for compressed domain beat detection in audio bitstreams A system and method for detecting beats in a compressed audio domain is disclosed where a beat detector functions as part of an error concealment system in an audio decoding section used in audio information transfer and audio download-streaming system terminal devi... | 05/23/2006 |
| 7020285 | Stealthy audio watermarking Described herein is technology for inserting and detecting watermarks in signals, such as a music clip. In one described implementation, a watermarking system employs chess spread-spectrum sequences (i.e., “chess watermarks”) to improve the balance of positive a... | 03/28/2006 |
| 7006699 | System and method for progressively transforming and coding digital data A system and method facilitating progressively transforming and coding digital pictures is provided. The present invention via employment of a multi-resolution lapped transform provides for progressive rendering as well as mitigation of blocking artifacts and ringin... | 02/28/2006 |
| 7006787 | Mobile to mobile digital wireless connection having enhanced voice quality This invention is directed toward improving the subjective voice quality of a mobile to mobile phone call having tandem vocoder processing by modifying the spectrum of the voice signal before it is processed by the second vocoder to compensate for digital distortion... | 02/28/2006 |
| 6919828 | Variable length coding and decoding methods and apparatuses using plural mapping tables A mapper-based variable length coding method and decoding method and apparatuses therefor are provided. The mapper-based variable length coding method includes an inputting step for receiving symbol data to be coded and receiving element type information on the kind... | 07/19/2005 |
| 6883015 | Apparatus and method for providing server state and attribute management for multiple-threaded voice enabled web applications An application server generates and maintains a server-side data record, also referred to as a “brownie”, that includes application state information and user attribute information for multiple users within a single session controlled by a web-based browser. The... | 04/19/2005 |
| 6873955 | Method and apparatus for recording/reproducing or producing a waveform using time position information Partial waveform data representative of a waveform shape variation are extracted from supplied waveform data, and the extracted partial waveform data are stored along with time position information indicative of their respective time positions. In reproduction, the ... | 03/29/2005 |
| 6826528 | Weighted frequency-channel background noise suppressor A method for implementing a noise suppressor in a speech recognition system comprises a filter bank for separating source speech data into discrete frequency sub-bands to generate filtered channel energy, and a noise suppressor for weighting the frequency sub-bands ... | 11/30/2004 |
| 6801666 | Device and method for transforming a digital signal A trellis filtering of a digital signal is disclosed. A method is provided of analysis filtering of an original digital signal including original samples representing physical quantities. Original samples of the digital signal are transformed by successive calculati... | 10/05/2004 |
| 6741666 | Device and method for transforming a digital signal A method and a device by which original digital signals are analysis-filtered, where the original digital signals include original samples representing physical quantities, and where the original samples are transformed by successive calculation steps into high and ... | 05/25/2004 |
| 6714907 | Codebook structure and search for speech coding A speech compression system with a special fixed codebook structure and a new search routine is proposed for speech coding. The system is capable of encoding a speech signal into a bitstream for subsequent decoding to generate synthesized speech. The codebook struct... | 03/30/2004 |
| 6681204 | Apparatus and method for encoding a signal as well as apparatus and method for decoding a signal An apparatus and a method for encoding an input signal on the time base through orthogonal transform involves removing the correlation of signal waveform on the basis of the parameters obtained by means of linear predictive coding (LPC) analysis and pitch... | 01/20/2004 |
| 6636830 | System and method for noise reduction using bi-orthogonal modified discrete cosine transform The invention provides a perceptual audio signal compression system and method. One aspect of the invention described herein includes transforming the signal into a plurality of bi-orthogonal modified discrete cosine transform (BMDCT) frequency coefficien... | 10/21/2003 |
| 6604069 | Signals having quantized values and variable length codes Efficiently encoded signals wherein the compression ration can be high without a corresponding degradation of signal quality. The range of values of subband-based signal components for quantization to zero, to which a short codelength is given, is set so ... | 08/05/2003 |
