Patents
Patents for G10L 19 - Speech or audio signal analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis (31,960)
01/2010
01/06/2010CN100578617C Code-switching method and code-switching device
01/06/2010CN100578616C Code conversion method and device
01/06/2010CN100578614C Semantic object synchronous understanding implemented with speech application language tags
01/05/2010US7644003 Cue-based audio coding/decoding
01/05/2010US7644002 Multi-pass variable bitrate media encoding
01/05/2010US7644001 Differentially coding an audio signal
01/05/2010US7643996 Enhanced waveform interpolative coder
01/05/2010US7643993 Method and system for decoding WCDMA AMR speech data using redundancy
01/05/2010US7643992 Method, system and device for automatic recognition of limited speech
01/05/2010US7643990 Global boundary-centric feature extraction and associated discontinuity metrics
01/05/2010US7643989 Method and apparatus for vocal tract resonance tracking using nonlinear predictor and target-guided temporal restraint
01/05/2010US7643721 Moving picture processing device, information processing device, and program thereof
01/05/2010US7643649 Integrating digital watermarks in multimedia content
01/05/2010CA2526803C Method and apparatus to enhance audio quality for digitized voice transmitted over a channel employing frequency diversity
12/2009
12/31/2009US20090327734 Matching a watermark to a host sampling rate
12/31/2009US20090326963 Audio encoding device, audio encoding method, and program thereof
12/31/2009US20090326962 Quality improvement techniques in an audio encoder
12/31/2009US20090326961 Efficient and secure forensic marking in compressed domain
12/31/2009US20090326960 Encoding and decoding of audio objects
12/31/2009US20090326959 Generation of decorrelated signals
12/31/2009US20090326950 Voice waveform interpolating apparatus and method
12/31/2009US20090326946 Frame Erasure Concealment Technique for a Bitstream-Based Feature Extractor
12/31/2009US20090326935 Method of treating voice information
12/31/2009US20090326934 Audio decoding device, audio decoding method, program, and integrated circuit
12/31/2009US20090326933 Codebook generation system and associated methods
12/31/2009US20090326932 Reducing Computational Complexity in Determining the Distance from Each of a Set of Input Points to Each of a Set of Fixed Points
12/31/2009US20090326931 Hierarchical encoding/decoding device
12/31/2009US20090326930 Speech decoding apparatus and speech encoding apparatus
12/31/2009US20090326929 Methods for Improving High Frequency Reconstruction
12/31/2009US20090326928 Audio Stream Notification and Processing
12/31/2009US20090326690 Audio watermarking technique for motion picture presentations
12/31/2009US20090325524 method and an apparatus for processing an audio signal
12/31/2009US20090323984 Information processing device, control method therefor, and program
12/31/2009US20090323509 Method of transmitting data signals in a telephone network
12/30/2009WO2009157824A1 Multi-mode scheme for improved coding of audio
12/30/2009WO2009157280A1 Audio signal compression device, audio signal compression method, audio signal demodulation device, and audio signal demodulation method
12/30/2009WO2009157213A1 Audio signal decoding device and balance adjustment method for audio signal decoding device
12/30/2009WO2009155803A1 A method and device for packet loss concealment
12/30/2009EP2139000A1 Method and apparatus for encoding or decoding a speech and/or non-speech audio input signal
12/30/2009EP2138999A1 Audio encoding device and audio encoding method
12/30/2009EP2137727A2 Method of transmitting data in a communication system
12/30/2009EP2137726A1 A method and an apparatus for processing an audio signal
12/30/2009EP2137725A1 Apparatus and method for synthesizing an output signal
12/30/2009EP1920636B1 Apparatus and method for decoding an audio signal
12/30/2009EP1499023B1 Data processing system, data processing method, data processing device, and data processing program
12/30/2009CN101617362A Audio decoding device and audio decoding method
12/30/2009CN101617361A Method and apparatus for rate reduction of coded voice traffic
12/30/2009CN101617360A Apparatus and method for coding and decoding multi-object audio signal with various channel
12/30/2009CN101616059A Method and device for concealing lost packages
12/30/2009CN101615910A Method, device and equipment of compression coding and compression coding method
12/30/2009CN101615396A Voice encoding device and voice decoding device, and method thereof
12/30/2009CN101615395A Methods, devices and systems for encoding and decoding signals
12/30/2009CN101615394A Method and device for allocating subframes
12/30/2009CN101615393A Method and apparatus for encoding or decoding a speech and/or non-speech audio input signal
12/30/2009CN101615231A Recording medium, license management apparatus, and recording and playback apparatus
12/30/2009CN100576931C Method for reproducing information signal
12/30/2009CN100576930C Apparatus for generating information signal to be recorded
12/30/2009CN100576319C Method and device for robust predictive vector quantization of linear prediction parameters in variable bit rate speech coding
12/30/2009CN100576318C Apparatus and method for concealing erased periodic signal data
12/29/2009US7640157 Systems and methods for low bit rate audio coders
12/29/2009US7640156 Low bit-rate audio encoding
12/29/2009US7639837 Identification documents and authentication of such documents
12/29/2009CA2392829C Printer with code sensor
12/24/2009US20090319282 Diffuse sound shaping for bcc schemes and the like
12/24/2009US20090319281 Cue-based audio coding/decoding
12/24/2009US20090319280 Enhancing Perceptual Performance of SBR and Related HFR Coding Methods by Adaptive Noise-Floor Addition and Noise Substitution Limiting
12/24/2009US20090319279 Method and system for audio transmit loopback processing in an audio codec
12/24/2009US20090319278 Efficient coding of overcomplete representations of audio using the modulated complex lapped transform (mclt)
12/24/2009US20090319268 Method and apparatus for measuring the intelligibility of an audio announcement device
12/24/2009US20090319264 Speech decoding apparatus, speech encoding apparatus, and lost frame concealment method
12/24/2009US20090319263 Coding of transitional speech frames for low-bit-rate applications
12/24/2009US20090319262 Coding scheme selection for low-bit-rate applications
12/24/2009US20090319259 Enhancing Perceptual Performance of SBR and Related HFR Coding Methods by Adaptive Noise-Floor Addition and Noise Substitution Limiting
12/24/2009US20090316914 Efficient and Scalable Parametric Stereo Coding for Low Bitrate Audio Coding Applications
12/24/2009US20090316598 Method and apparatus for obtaining an attenuation factor
12/24/2009US20090315748 Enhancing Perceptual Performance of SBR and Related HFR Coding Methods by Adaptive Noise-Floor Addition and Noise Substitution Limiting
12/23/2009WO2009155569A1 Coding of transitional speech frames for low-bit-rate applications
12/23/2009WO2009153995A1 Quantizer, encoder, and the methods thereof
12/23/2009WO2009152723A1 An embedded encoding and decoding method and device
12/23/2009WO2009116815A3 Apparatus and method for encoding and decoding using bandwidth extension in portable terminal
12/23/2009EP2136361A1 Low-complexity audio transcoding
12/23/2009EP2136360A1 Method and system for audio transmit processing in an audio codec
12/23/2009EP2136359A1 Method and device for measuring the intelligibility of a sound distribution system
12/23/2009EP2135241A1 Audible errors detection and prevention for speech decoding, audible errors concealing
12/23/2009EP2135240A2 Speech coding system and method
12/23/2009EP2135239A1 Method and apparatus for coding and decoding amplitude of partial
12/23/2009EP1959435B1 Speech encoder
12/23/2009CN101611442A Encoding device, decoding device, and method thereof
12/23/2009CN101611441A Audio signal encoding
12/23/2009CN101611440A Low-delay transform coding using weighting windows
12/23/2009CN101609684A Post-processing filter for decoding voice signal
12/23/2009CN101609683A Encoder and method for self adapting to discontinuous transmission of multi-rate narrowband
12/23/2009CN101609682A Encoder and method for self adapting to discontinuous transmission of multi-rate wideband
12/23/2009CN101609681A Coding method, coder, decoding method and decoder
12/23/2009CN101609680A Compression coding and decoding method, coder, decoder and coding device
12/23/2009CN101609679A Embedded coding and decoding method and device
12/23/2009CN101609678A Signal compression method and compression device thereof
12/23/2009CN101609677A Preprocessing method, preprocessing device and preprocessing encoding equipment
12/23/2009CN101609676A Method and system for audio signal
12/23/2009CN101609675A Fragile audio frequency watermark method based on mass center