|
Match
|
Document |
Document Title |
|
|
7630282 |
Disk for audio data, reproduction apparatus, and method of recording/reproducing audio data
An audio disk has a first audio zone and a second audio zone. In the first audio zone, both of a plurality of tracks each including a single piece of music and a first management information...
|
|
|
7630902 |
Apparatus and methods for digital audio coding using codebook application ranges
A low bit rate digital audio coding system includes an encoder which assigns codebooks to groups of quantization indexes based on their local properties resulting in codebook application ranges...
|
|
|
7627482 |
Methods, storage medium, and apparatus for encoding and decoding sound signals from multiple channels
A sound signal encoder for high efficiency encoding of sound signals from a plurality of channels is provided which includes a to-be-correlated object setter ( 52 ), to-be-correlated object...
|
|
|
7624021 |
Universal container for audio data
Storing audio data encoded in any of a plurality of different audio encoding formats is enabled by parametrically defining the underlying format in which the audio data is encoded, in audio format...
|
|
|
7624022 |
Speech compression and decompression apparatuses and methods providing scalable bandwidth structure
A speech compression apparatus including: a first band-transform unit transforming a wideband speech signal to a narrowband low-band speech signal; a narrowband speech compressor compressing the...
|
|
|
7613615 |
Circuits, systems, and methods for real-time de-shuffling of shuffled audio data
A data de-shuffler includes a buffer having a set of addressable locations for storing data and control circuitry for de-shuffling a sequence of shuffled data samples. The control circuitry stores...
|
|
|
7613609 |
Apparatus and method for encoding a multi-channel signal and a program pertaining thereto
To encode multi-channel digital data by adjusting the number of bits allocated to each channel to perform entropy coding of the multi-channel data, there is provided a multi-channel encoder...
|
|
|
7610205 |
High quality time-scaling and pitch-scaling of audio signals
In one alternative, an audio signal is analyzed using multiple psychoacoustic criteria to identify a region of the signal in which time scaling and/or pitch shifting processing would be inaudible...
|
|
|
7606716 |
Systems and methods for multi-dialog surround audio
Systems and processes for transmission of multi-channel audio from a sender to one or more recipients. Multi-channel audio is encoded with a plurality of different dialog channels. The encoded...
|
|
|
7599840 |
Selectively using multiple entropy models in adaptive coding and decoding
Techniques and tools for selectively using multiple entropy models in adaptive coding and decoding are described herein. For example, for multiple symbols, an audio encoder selects an entropy model...
|
|
|
7596488 |
System and method for real-time jitter control and packet-loss concealment in an audio signal
An “adaptive audio playback controller” operates by decoding and reading received packets of an audio signal into a signal buffer. Samples of the decoded audio signal are then played out of the...
|
|
|
7590531 |
Robust decoder
Techniques and tools related to delayed or lost coded audio information are described. For example, a concealment technique for one or more missing frames is selected based on one or more factors...
|
|
|
7587314 |
Single-codebook vector quantization for multiple-rate applications
This invention relates to a method, a device and a software application product for N-level quantization of vectors, wherein N is selectable prior to said quantization from a set of at least two...
|
|
|
7584106 |
Method and apparatus for reducing access delay in discontinuous transmission packet telephony systems
A system, method and computer-readable medium are disclosed for operating a communications network. The method aspect comprises receiving a signal and removing a first portion of a frame of the...
|
|
|
7558391 |
Compander architecture and methods
Compander architecture and method for ensuring that the components of an output signal are synchronized includes calculating a gain calculation for an input signal, detecting a predetermined...
|
|
|
7555434 |
Audio decoding device, decoding method, and program
An energy corrector ( 105 ) for correcting a target energy for high-frequency components and a corrective coefficient calculator ( 106 ) for calculating an energy corrective coefficient from...
|
|
|
7539094 |
Multi-bit stream of multimedia data processing
A system for processing multimedia data outputs multiple digital data streams of different compressed ratios or types to adapt to multiple limitations of storage spaces and transmission bandwidths,...
|
|
|
7526432 |
Apparatus and method for producing a data stream and apparatus and method for reading a data stream
An entropy encoder includes an apparatus for producing a data stream which comprises two reference points, of code words of variable lengths, the apparatus comprising a first device for writing at...
|
|
|
7518054 |
Audio reproduction apparatus, method, computer program
The audio reproduction apparatus ( 100 ) for sports training purposes comprises a tempo derivation unit ( 103 ) for deriving a selected tempo (T) on the basis of a data signal (d 1, d 2, d 3 )...
|
|
|
7519520 |
Compact signal coding method and apparatus
A compact signal coding method and apparatus including obtaining cumulative probabilities for successive quantized samples of a signal, determine the direct probability for the leading one of the...
|
|
|
7515711 |
Methods and apparatuses for encrypting video and for decrypting video
An encryption technique and a decryption technique that are applied to video data that is encrypted on a predetermined domain of compressed video data are disclosed. For example, JPEG2000...
|
|
|
7516066 |
Audio coding
According to a first aspect of the invention, at least part of an audio signal is coded in order to obtain an encoded signal, the coding comprising predictive coding the at least part of the audio...
|
|
|
7516230 |
Method and device for the generation or decoding of a scalable data stream with provision for a bit-store, encoder and scalable encoder
In a method for generating a scalable data stream, when a block of output data of a first encoder is present, this block of output data is written into the scalable data stream. If output data of a...
|
|
|
7505897 |
Generalized Lempel-Ziv compression for multimedia signals
The subject matter includes systems, engines, and methods for generalizing a class of Lempel-Ziv algorithms for lossy compression of multimedia. One implementation of the subject matter compresses...
|
|
|
7502743 |
Multi-channel audio encoding and decoding with multi-channel transform selection
An audio encoder and decoder use architectures and techniques that improve the efficiency of multi-channel audio coding and decoding. The described strategies include various techniques and tools,...
|
|
|
7496517 |
Method and device for generating a scalable data stream and method and device for decoding a scalable data stream with provision for a bit saving bank function
In a method for generating a scalable data stream from one or several blocks of output data of a first encoder and from one or several blocks of output data of a second encoder a determining data...
|
|
|
7472069 |
Apparatus for processing framed audio data for fade-in/fade-out effects
An apparatus that process framed audio data to add fade-in and/or fade-out effect with low computing speed and small memory. The apparatus includes a deframer for taking an original value of a...
|
|
|
7469206 |
Methods for improving high frequency reconstruction
The present invention proposes a new method and a new apparatus for enhancement of audio source coding systems utilizing high frequency reconstruction (HFR). It utilizes a detection mechanism ( 703...
|
|
|
7460479 |
Late frame recovery method
Method of processing a transmitted encoded media data stream is received. If a data element arrives prior to, or at, a predetermined playout deadline, the data element is decoded, the media...
|
|
|
7454353 |
Method and device for the generation of a scalable data stream and method and device for decoding a scalable data stream
In a method of producing a scalable data stream of at least two blocks of output data of a first coder and a block of output data of a second coder, wherein the at least two blocks of output data...
|
|
|
7447639 |
System and method for error concealment in digital audio transmission
A beat-pattern based error concealment system and method which detects drum-like beat patterns of music signals on the encoder side of the system and embeds the beat information as data ancillary...
|
|
|
7447640 |
Acoustic signal encoding method and apparatus, acoustic signal decoding method and apparatus and recording medium
In an acoustic signal encoding apparatus ( 100 ), a tonal noise verification unit ( 110 ) verifies whether the input acoustic time-domain signals are tonal or noisy. If the input acoustic...
|
|
|
7433824 |
Entropy coding by adapting coding between level and run-length/level modes
An audio encoder performs adaptive entropy encoding of audio data. For example, an audio encoder switches between variable dimension vector Huffman coding of direct levels of quantized audio data...
|
|
|
7430296 |
Circuit arrangement for reducing the dynamic range of audio signals
An audio system includes a first transformation device provided with an input audio signal and which transforms the input audio signal from the time domain to the frequency domain resulting in an...
|
|
|
7426470 |
Energy-based nonuniform time-scale modification of audio signals
A method for energy based, non-uniform time-scale compression of audio signals includes receiving a frame of data corresponding to an input audio signal and segmenting the data into a plurality of...
|
|
|
7395209 |
Fixed point audio decoding system and method
A digital audio decoder for receiving an encoded audio signal and decoding the audio signal. The digital audio decoder uses both real time computations and calculations pre-stored in a look-up...
|
|
|
7395210 |
Progressive to lossless embedded audio coder (PLEAC) with multiple factorization reversible transform
A system and method for lossless and/or progressive to lossless data coding (e.g., audio and/or image) is provided. The system and method employ a multiple factorization reversible transform...
|
|
|
7389237 |
Recording and reproducing apparatus for use with optical recording medium having real-time, losslessly encoded data
A lossless encoding and/or decoding apparatus which encodes audio data on a real-time basis includes a lossless compression unit which losslessly compression encodes the audio data stored in an...
|
|
|
7369633 |
Method and apparatus for providing carrier synchronization in digital broadcast and interactive systems
An approach is provided for supporting carrier synchronization in a digital broadcast and interactive system. A carrier synchronization module receives one or more signals representing a frame that...
|
|
|
7363232 |
Method and system for enabling audio speed conversion
The present invention provides a method and system for processing an audio signal. According to an exemplary method, an audio signal such as a digital voice signal is received and divided into one...
|
|
|
7343286 |
Method and apparatus for digital signal processing
A method and an apparatus analogically output low-resolution digital signals to achieve an equal analog output result of a high-resolution digital signal under a request of signal quality. The...
|
|
|
7337108 |
System and method for providing high-quality stretching and compression of a digital audio signal
An adaptive “temporal audio scaler” is provided for automatically stretching and compressing frames of audio signals received across a packet-based network. Prior to stretching or compressing...
|
|
|
7318035 |
Audio coding systems and methods using spectral component coupling and spectral component regeneration
An audio encoder discards spectral components of an input signal and uses channel coupling to reduce the information capacity requirements of an encoded signal. Channel coupling represents selected...
|
|
|
7315817 |
Sound encoder and sound decoder
An sound encoder accepts a sound signal and then produces a plurality of codes which represent the sound signal on a frame-by-frame basis. The sound encoder determines the order in which the...
|
|
|
7313519 |
Transient performance of low bit rate audio coding systems by reducing pre-noise
Distortion artifacts preceding a signal transient in an audio signal stream processed by a transform-based low-bit-rate audio coding system employing coding blocks are reduced by detecting a...
|
|
|
7305346 |
Audio processing method and audio processing apparatus
A volume adjustment unit reduces the volume of audio data. By coding the audio data where the volume is reduced in advance, the possibility of being decoded in a manner of exceeding the maximum bit...
|
|
|
7299191 |
Radio transmission device and method, radio receiving device and method, radio transmitting/receiving system, and storage medium
Disclosed herein is a radio transmission device comprising data inputting means for inputting transmission data, data storing means for storing the inputted transmission data temporarily, data...
|
|
|
7289963 |
Sound-reproducing apparatus and high frequency interpolation-processing method
The invention provides a sound-reproducing apparatus and a high frequency interpolation-processing method in each of which high frequency interpolation processing having a light burden imposed...
|
|
|
7286601 |
Digital broadcast system having transmission apparatus and receiving apparatus
A broadcast system has digital receiving apparatuses that imitate deteriorated reproduction that is observed in analog receiving apparatuses when a transmission path failure occurs, thus preventing...
|
|
|
7283968 |
Method for grouping short windows in audio encoding
Windows of the first type and windows of the second type are identified within a frame using energy associated with each short window within the frame. The short windows of the first type and the...
|