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)
07/2008
07/01/2008US7395209 Fixed point audio decoding system and method
07/01/2008US7395208 Integrating external voices
07/01/2008US7395202 Method and apparatus to facilitate vocoder erasure processing
07/01/2008US7395078 Voice over short message service
07/01/2008US7394973 Signal compressing apparatus
07/01/2008US7394903 Apparatus and method for constructing a multi-channel output signal or for generating a downmix signal
07/01/2008US7394871 Digital implementation of multi-channel demodulators
07/01/2008US7394833 Method and apparatus for reducing synchronization delay in packet switched voice terminals using speech decoder modification
06/2008
06/26/2008WO2008076534A2 Code excited linear prediction speech coding
06/26/2008WO2008074251A1 A hierarchical coding decoding method and device
06/26/2008WO2008074249A1 Frame loss concealment method, system and apparatuses
06/26/2008WO2008046530A3 Apparatus and method for multi -channel parameter transformation
06/26/2008WO2008046468A3 Analysis filterbank, synthesis filterbank, encoder, decoder, mixer and conferencing system
06/26/2008US20080154748 Information service method, data terminal unit, data transmitting and receiving apparatus, and data transmitting apparatus
06/26/2008US20080154615 Scalable Encoding/Decoding Of Audio Signals
06/26/2008US20080154614 Estimation of Speech Model Parameters
06/26/2008US20080154589 Apparatus and method for encoding audio signals
06/26/2008US20080154588 Speech Coding System to Improve Packet Loss Concealment
06/26/2008US20080154587 Gain Quantization System for Speech Coding to Improve Packet Loss Concealment
06/26/2008US20080154586 Dual-Pulse Excited Linear Prediction For Speech Coding
06/26/2008US20080154584 Method for Concatenating Frames in Communication System
06/26/2008US20080153531 Presence Engine and a Method of Operating a Presence Engine for Encoding or Decoding Availability Status into a Signal Representative of an Audio Signal
06/26/2008US20080152128 Stegotext encoder and decoder
06/25/2008EP1936950A1 Method and system for detecting a message in a watermarked digital signal
06/25/2008EP1934973A1 Temporal and spatial shaping of multi-channel audio signals
06/25/2008EP1509906B1 Method and device for pitch enhancement of decoded speech
06/25/2008CN101208741A Method for adapting for an interoperability between short-term correlation models of digital signals
06/25/2008CN101208740A Method for discontinuous transmission and accurate reproduction of background noise information
06/25/2008CN101207665A Method and apparatus for obtaining attenuation factor
06/25/2008CN101207500A Method for acoustic frequency data inflexion
06/25/2008CN101207468A Method, system and apparatus for missing frame hide
06/25/2008CN101207459A Method and device of signal processing
06/25/2008CN101206861A Method for imbedding digital music production authentication information and method for authentication of said production
06/25/2008CN101206860A Method and apparatus for encoding and decoding layered audio
06/25/2008CN100397484C Digital signal processor
06/25/2008CN100397362C Recording medium, data reproducing device, data recording device, and data reproducing method
06/24/2008US7392195 Lossless multi-channel audio codec
06/24/2008US7392191 Method and device to distinguish between voice conversation and automated speech recognition
06/24/2008US7392180 System and method of coding sound signals using sound enhancement
06/24/2008US7392179 LPC vector quantization apparatus
06/24/2008US7392176 Encoding device, decoding device and audio data distribution system
06/24/2008US7391918 Fixed, variable and adaptive bit rate data source encoding (compression) method
06/24/2008US7391877 Spatial processor for enhanced performance in multi-talker speech displays
06/24/2008US7391870 Apparatus and method for generating a multi-channel output signal
06/19/2008WO2008072913A1 Method and apparatus to determine encoding mode of audio signal and method and apparatus to encode and/or decode audio signal using the encoding mode determination method and apparatus
06/19/2008WO2008072856A1 Method and apparatus to encode and/or decode by applying adaptive window size
06/19/2008WO2008072737A1 Encoding device, decoding device, and method thereof
06/19/2008WO2008072736A1 Adaptive sound source vector quantization unit and adaptive sound source vector quantization method
06/19/2008WO2008072735A1 Adaptive sound source vector quantization device, adaptive sound source vector inverse quantization device, and method thereof
06/19/2008WO2008072733A1 Encoding device and encoding method
06/19/2008WO2008072732A1 Audio encoding device and audio encoding method
06/19/2008WO2008072701A1 Post filter and filtering method
06/19/2008WO2008072671A1 Audio decoding device and power adjusting method
06/19/2008WO2008072670A1 Encoding device, decoding device, and method thereof
06/19/2008WO2008072566A1 Signal separation reproduction device and signal separation reproduction method
06/19/2008WO2008072524A1 Audio signal encoding method and decoding method
06/19/2008WO2008072497A1 Contents judging device, contents judging method, information reproducing device, information reproducing method and information recording medium
06/19/2008WO2008072145A1 Matching a watermark to a host sampling rate
06/19/2008WO2008072132A2 Extracting auxiliary data from a host signal
06/19/2008WO2008026128A3 Encoding an audio signal
06/19/2008WO2008022200A3 Re-phasing of decoder states after packet loss
06/19/2008WO2008008902A3 Encoder initialization and communications
06/19/2008WO2007124485A3 Method and apparatus for audio transcoding
06/19/2008US20080147874 Data stream-distribution system and method therefor
06/19/2008US20080147415 Encoding an Information Signal
06/19/2008US20080147414 Method and apparatus to determine encoding mode of audio signal and method and apparatus to encode and/or decode audio signal using the encoding mode determination method and apparatus
06/19/2008US20080147385 Memory-efficient method for high-quality codebook based voice conversion
06/19/2008US20080147384 Pitch determination for speech processing
06/19/2008US20080144828 Voice data RF cellular or WLAN IC
06/19/2008US20080144743 Demodulator system and method
06/19/2008DE102006050068A1 Vorrichtung und Verfahren zum Erzeugen eines Umgebungssignals aus einem Audiosignal, Vorrichtung und Verfahren zum Ableiten eines Mehrkanal-Audiosignals aus einem Audiosignal und Computerprogramm Apparatus and method for generating an ambient signal from an audio signal, apparatus and method for deriving a multi-channel audio signal from an audio signal, and computer program
06/19/2008CA2672165A1 Encoder, decoder and methods for encoding and decoding data segments representing a time-domain data stream
06/18/2008EP1933306A1 Method and apparatus for transcoding a speech signal from a first code excited linear prediction (CELP) format to a second code excited linear prediction (CELP) format
06/18/2008EP1933305A1 Audio encoding device and audio encoding method
06/18/2008EP1933304A1 Scalable encoding apparatus, scalable decoding apparatus, and methods of them
06/18/2008EP1932148A1 Method and apapratus for sending control information in a communications network
06/18/2008EP1932147A1 A method for decoding an audio signal
06/18/2008EP1932099A2 Wavelet matching pursuits coding and decoding
06/18/2008EP1931958A1 Method and apparatus for signal processing and encoding and decoding method, and apparatus therefor
06/18/2008EP1216471A4 Musical instrument digital recording device with interference
06/18/2008CN101204015A Method and apparatus for providing a motion signal with a sound signal using an existing sound signal encoding format
06/18/2008CN101203907A Audio encoding apparatus, audio decoding apparatus and audio encoding information transmitting apparatus
06/18/2008CN101202815A Method for providing key prompting voice in TV set and TV set
06/18/2008CN101202736A Method for realizing encoding-decoding in communication network
06/18/2008CN101202048A Method for changing speed of sound
06/18/2008CN101202047A Sound encoder and sound decoder
06/18/2008CN101202046A Sound encoder and sound decoder
06/18/2008CN101202045A Sound encoder and sound decoder
06/18/2008CN101202044A Sound encoder and sound decoder
06/18/2008CN101202043A Method and system for encoding and decoding audio signal
06/18/2008CN101202042A Expandable digital audio encoding frame and expansion method thereof
06/18/2008CN100396133C Mobile telephone with identity recognition and self-start by listening the environment and its implementation method
06/18/2008CN100395817C Encoding device, decoding device and method
06/17/2008US7389237 Recording and reproducing apparatus for use with optical recording medium having real-time, losslessly encoded data
06/17/2008US7389227 High-speed search method for LSP quantizer using split VQ and fixed codebook of G.729 speech encoder
06/17/2008US7389226 Optimized windows and methods therefore for gradient-descent based window optimization for linear prediction analysis in the ITU-T G.723.1 speech coding standard
06/17/2008US7388221 Viewer and method for displaying information based on viewer position
06/12/2008WO2008070554A2 Systems and methods for dynamic normalization to reduce loss in precision for low-level signals
06/12/2008WO2008069614A1 Apparatus and method for coding audio data based on input signal distribution characteristics of each channel
06/12/2008WO2008069597A1 A method and an apparatus for processing an audio signal