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)
03/2002
03/14/2002US20020031182 Coding device, coding method and storage medium
03/14/2002US20020030612 Method and system for encoding to mitigate decoding errors in a receiver
03/13/2002EP1187337A1 Speech coder, speech processor, and speech processing method
03/13/2002EP1187133A2 Recording medium, editing method and editing apparatus
03/13/2002EP1187128A2 Audio signal processing apparatus and method thereof
03/13/2002EP1187101A2 Method and apparatus for preclassification of audio material in digital audio compression applications
03/13/2002EP1187100A1 A method and a device for objective speech quality assessment without reference signal
03/13/2002EP1186104A1 Differential pulse code modulation system
03/13/2002EP1186100A2 Generating coefficients for a prediction filter in an encoder
03/13/2002CN1340186A Information processor and processing method, and information storage medium
03/12/2002US6356563 Global addressing and identifier assignment in inter-worked networks
03/07/2002WO2002019319A1 Speech processing device and speech processing method
03/07/2002WO2001058063A3 A method of labelling a multi-frequency signal such as an audio or a video signal
03/07/2002US20020029253 Network linking method using information embedded in data objects that have inherent noise
03/07/2002US20020029148 Audio signal processing apparatus and method thereof
03/07/2002US20020029143 System and method for effectively implementing fixed masking thresholds in an audio encoder device
03/07/2002US20020029142 Vocoding method in all internet protocol (IP) network
03/07/2002US20020029141 Speech enhancement with gain limitations based on speech activity
03/07/2002US20020029140 Speech coder for high quality at low bit rates
03/07/2002US20020029091 Digital audio player capable of playing digital audio data through existing cassette tape player
03/07/2002US20020028672 Method & system for presentation of content from one cellular phone to another through a computer network
03/07/2002US20020028670 A mobile telephone with voice data compression and recording features
03/07/2002US20020027994 Audio signal processor, audio player and audio distribution system
03/07/2002US20020027922 Global addressing and identifier assignment in inter-worked networks
03/06/2002EP1184842A2 Relative pulse position in CELP vocoding
03/06/2002EP1183682A1 Quantization of variable-dimension speech spectral amplitudes using spectral interpolation between previous and subsequent frames
03/06/2002EP1183681A1 Sub-packet insertion for packet loss compensation in voice over ip networks
03/06/2002EP1183678A1 Universal audio communications and control system and method
03/06/2002EP1112621B1 Device and method for entropy encoding of information words and device and method for decoding entropy-encoded information words
03/06/2002EP1019907B1 Speech coding
03/06/2002CN1339151A Method and apparatus for eight-rate random number generation for speech coders
03/06/2002CN1338834A Low-speed speech encode method based on network protocol
03/06/2002CN1338745A Signal processing circuits
03/06/2002CN1338727A Acoustic vector generator, and acoustic encoding and decoding device
03/06/2002CN1338726A Acoustic vector, and acoustic encoding and decoding device
03/06/2002CN1338725A Acoustic vector generator, and acoustic encoding and decoding device
03/06/2002CN1338724A Acoustic vector generator, and acoustic encoding and decoding device
03/06/2002CN1338723A Acoustic vector generator, and acoustic encoding and decoding apparatus
03/06/2002CN1338722A Acoustic vector generator, and acoustic encoding and decoding device
03/06/2002CN1338697A Data processing system, data processing method, data processing device, permission system and program provided media
03/05/2002US6353808 Apparatus and method for encoding a signal as well as apparatus and method for decoding a signal
03/05/2002US6353672 Steganography using dynamic codes
03/05/2002US6353169 Universal audio communications and control system and method
03/05/2002CA2340610C Encoder/decoder
03/05/2002CA2332407C Method for defining coding information
02/2002
02/28/2002WO2002017588A1 Low speed speech encoding method based on the network protocol
02/28/2002WO2002017538A2 Fixed, variable and adaptive bit rate data source encoding (compression) method
02/28/2002WO2002017500A2 Method and apparatus for using non-symmetric speech coders to produce non-symmetric links in a wireless communication system
02/28/2002WO2002017497A2 Method and apparatus for the predictive of audio signals
02/28/2002WO2002017487A1 Partioned block frequency domain adaptive filter
02/28/2002WO2002017320A1 Method of storing or decoding a stream of bits
02/28/2002WO2002017302A2 Transcoder for sampling frequency conversion and synchronization of audio signals
02/28/2002WO2002017301A1 Audio transmission system having a pitch period estimator for bad frame handling
02/28/2002WO2002017300A1 Frequency thinning apparatus for thinning out frequency components of signal and frequency thinning apparatus
02/28/2002WO2002017299A1 Method for noise robust classification in speech coding
02/28/2002WO2002005537A8 Speech quality estimation for off-line speech recognition
02/28/2002WO2001086930A3 System and method of minimizing the number of voice transcodings during a conference call in a packet-switched network
02/28/2002WO2001059549A3 Methods and apparatus for secure content distribution
02/28/2002US20020026309 Speech processing system
02/28/2002US20020026255 Digital interface device
02/28/2002US20020026253 Speech processing apparatus
02/28/2002US20020025137 Audeo reproducing apparatus, audeo reproducing method, video-audio reproducing apparatus, and video-audio reproducing method
02/28/2002US20020025051 Mixing apparatus for audio data, method of controlling the same, and mixing control program
02/28/2002US20020025048 Method of transmitting voice information and an electronic communications device for transmission of voice information
02/28/2002US20020025042 Scheme for transferring copyright protected contents data using radio link layer authentication/encryption
02/28/2002US20020025003 Apparatus for processing a bit stream
02/28/2002DE10128882A1 Speech synthesis system for portable telephone, delivers speech synthesis data based on selected voice characteristic data and sentence input by customer
02/27/2002EP1182825A2 Transferring copyright protected contents using radio link layer authentication/encryption
02/27/2002EP1182816A2 Channel error protection implementable across network layers in a communication system
02/27/2002EP1181687A1 Multipulse interpolative coding of transition speech frames
02/27/2002EP1181686A1 Reduction of quantization-induced block-discontinuities in an audio coder
02/27/2002EP1181685A1 Method and arrangement for speech coding, using phonetic decoding and the transmission of speech characteristics
02/27/2002CN1338185A Concurrent IP based voice and data services via wireless networks
02/27/2002CN1338104A Data framing for adaptive-block-length coding system
02/27/2002CN1338096A Adaptive windows for analysis-by-synthesis CELP-type speech coding
02/27/2002CN1337671A Relative pulse position of code-excited linear predict voice coding
02/27/2002CN1080036C Transmission system implementing different coding principles
02/26/2002US6351800 System and method for assisting a microprocessor
02/26/2002US6351733 Method and apparatus for accommodating primary content audio and secondary content remaining audio capability in the digital audio production process
02/26/2002US6351730 Low-complexity, low-delay, scalable and embedded speech and audio coding with adaptive frame loss concealment
02/26/2002US6351728 Error concealment in digital transmissions
02/26/2002US6351727 Error concealment in digital transmissions
02/26/2002US6351635 Mobile telephone with voice data compression and recording features
02/26/2002US6351490 Voice coding apparatus, voice decoding apparatus, and voice coding and decoding system
02/21/2002WO2002015587A2 Modulating one or more parameters of an audio or video perceptual coding system in response to supplemental information
02/21/2002WO2002015410A2 Low latency data encoder
02/21/2002WO2001082498A3 Method and apparatus for voice latency reduction in a voice-over-data wireless communication system
02/21/2002US20020023116 Signal processing device and signal processing method
02/21/2002US20020022898 Digital audio coding apparatus, method and computer readable medium
02/21/2002US20020021825 Methods for identifying equipment used in counterfeiting
02/21/2002US20020021824 Low visibility watermarks using an out-of-phase color
02/20/2002EP1180764A1 Confidence score in decoded signal for speech recognition over wireless transmission channels
02/20/2002EP0699334B1 Method and apparatus for group encoding signals
02/20/2002CN1337125A Method for implementing multipoint codes in an exchange
02/20/2002CN1337043A Wideband audio transmission system
02/20/2002CN1337042A Method and apparatus for determining speech coding parameters
02/20/2002CN1337031A Apparatus and method for recovering quantized codes in alossy transmission environment
02/19/2002US6349284 Scalable audio encoding/decoding method and apparatus
02/19/2002US6349152 Table-based compression with embedded coding
02/19/2002US6348879 Efficient coding of side information in a lossless encoder