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9020814 |
Pulse encoding and decoding method and pulse codec
In a pulse encoding and decoding method and a pulse codec, more than two tracks are jointly encoded, so that free codebook space in the situation of single track encoding can be combined during... |
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9009032 |
Method and system for performing sample rate conversion
A method and system for performing sample rate conversion is provided. The method may include configuring a system to convert a sample rate of a first audio channel of a plurality of audio... |
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8988256 |
Coding method, decoding method, coder, and decoder
A coding method, a decoding method, a coder, and a decoder are disclosed herein. A coding method includes: obtaining the pulse distribution, on a track, of the pulses to be encoded on the track;... |
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8959018 |
Pulse encoding and decoding method and pulse codec
In a pulse encoding and decoding method and a pulse codec, more than two tracks are jointly encoded, so that free codebook space in the situation of single track encoding can be combined during... |
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8924200 |
Audio signal bandwidth extension in CELP-based speech coder
A method for decoding an audio signal in a decoder having a CELP-based decoder element including a fixed codebook component, at least one pitch period value, and a first decoder output, wherein a... |
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8907821 |
Apparatus and method for decoding data
A computer-implemented method and apparatus are disclosed for decoding an encoded data signal. In one embodiment, the method includes accessing, in a memory, a set of signal elements. The encoded... |
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8909520 |
***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Pulse encoding and decoding method and pulse codec
In a pulse encoding and decoding method and a pulse codec, more than two tracks are jointly encoded, so that free codebook space in the situation of single track encoding can be combined during... |
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8885011 |
Method for implementing video call with bluetooth-based headset and video communication terminal for the same
Disclosed are a method for implementing a video call with a Bluetooth-based headset and a video communication terminal. The method includes: looking up a Bluetooth headset; starting a VTCALL unit... |
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8868432 |
Audio signal bandwidth extension in CELP-based speech coder
A method for decoding an audio signal having a bandwidth that extends beyond a bandwidth of a CELP excitation signal in an audio decoder including a CELP-based decoder element. The method includes... |
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8805697 |
Decomposition of music signals using basis functions with time-evolution information
Decomposition of a multi-source signal using a basis function inventory and a sparse recovery technique is disclosed. |
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8804970 |
Low bitrate audio encoding/decoding scheme with common preprocessing
An audio encoder has a common preprocessing stage, an information sink based encoding branch such as spectral domain encoding branch, a information source based encoding branch such as an... |
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8805694 |
Method and apparatus for encoding and decoding audio signal using adaptive sinusoidal coding
A method and an apparatus for encoding and decoding audio signals using adaptive sinusoidal coding are provided. The audio signal encoding method includes the steps of dividing a synthesized audio... |
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8805678 |
Method and system for asynchronous pipeline architecture for multiple independent dual/stereo channel PCM processing
Aspects of a method and system for an asynchronous pipeline architecture for multiple independent dual/stereo channel PCM processing are provided. Asynchronously pipeline processing of audio... |
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8781820 |
Multi band audio compressor dynamic level adjust in a communications device
An uplink or downlink audio processor contains a multi band compressor that receives an input, uplink or downlink, audio signal. The multi-band compressor has a band splitter that splits the input... |
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8768713 |
Set-top-box with integrated encoder/decoder for audience measurement
Systems and methods are disclosed for encoding audio in a set-top box that is invoked by a user when listening to a broadcast audio signal from a radio, TV, streaming or other audio device. A... |
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8762158 |
Decoding method and decoding apparatus therefor
A method and apparatus for generating synthesis audio signals are provided. The method includes decoding a bitstream; splitting the decoded bitstream into n sub-band signals; generating n... |
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8706509 |
Method and a decoder for attenuation of signal regions reconstructed with low accuracy
The embodiments of the present invention improves conventional attenuation schemes by replacing constant attenuation with an adaptive attenuation scheme that allows more aggressive attenuation,... |
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8595018 |
Technique for controlling codec selection along a complex call path
The invention relates to a technique of operating a call control node controlling at least one section of a call path. The call path includes between two opposite edge nodes a multi-section... |
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8571854 |
Detector for use in voice communications systems
One or more methods and systems of detecting or identifying one or more types of algorithms used in the encoding of a voice or speech waveform is presented. The system and method may be used as a... |
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8477050 |
Apparatus and method for encoding using signal fragments for redundant transmission of data
A system and method for redundant transmission is provided. In one embodiment, an input signal S is encoded as a list of fragments. Each fragment includes an index value and a projection value.... |
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8473282 |
Sound processing device and program
In a sound processing device, a modulation spectrum specifier specifies a modulation spectrum of an input sound for each of a plurality of unit intervals. An index calculator calculates an index... |
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8468026 |
Audio decoding using variable-length codebook application ranges
Provided are, among other things, systems, methods and techniques for decoding an audio signal from a frame-based bit stream. At least one frame includes processing information pertaining to the... |
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8447597 |
Audio encoding device, audio decoding device, audio encoding method, and audio decoding method
In an encoding process, a CPU transforms an audio signal from the real-time domain to the frequency domain, and transforms the signal into spectra consisting of MDCT coefficients. The CPU... |
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8407044 |
Telephony content signal discrimination
A method for discriminating a telephony content signal into a first category or a second category is described. The method comprises a filtering procedure for obtaining from the telephony content... |
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8392203 |
Encoding method and system
An encoding system includes a sampling unit, a computing unit, a comparing unit, a quantifying unit, and an encoding unit. The sampling unit obtains first sample data of a current sampling point... |
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8380495 |
Transcoding method, transcoding device and communication apparatus used between discontinuous transmission
The embodiments of a transcoding method, a transcoding device, and a communication apparatus are provided. The embodiment of a method includes: receiving a bit stream input from a sending end;... |
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8374858 |
Scalable lossless audio codec and authoring tool
An audio codec losslessly encodes audio data into a sequence of analysis windows in a scalable bitstream. This is suitably done by separating the audio data into MSB and LSB portions and encoding... |
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8374884 |
Decoding apparatus and decoding method
A coding apparatus reduces a circuit scale and the amount of coding processing calculation. A frequency domain conversion section performs a frequency analysis of the signal sampled at a sampling... |
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8346542 |
Apparatus and method for widening audio signal band
An audio signal band expanding apparatus (100a) includes a harmonic generator (3) that receives an input audio signal having a predetermined band and generates, based on the input audio signal,... |
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8294602 |
Coding method, decoding method, coder and decoder
A coding method, a decoding method, a coder, and a decoder are disclosed herein. A coding method includes: obtaining the pulse distribution, on a track, of the pulses to be encoded on the track;... |
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8271293 |
Audio decoding using variable-length codebook application ranges
Provided are, among other things, systems, methods and techniques for decoding an audio signal from a frame-based bit stream. Each frame includes processing information pertaining to the frame and... |
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8223136 |
Error detection and prevention inacoustic data
A stream of raw acoustic data can be received at a client device. The client device can frame the stream of raw acoustic data at particular intervals with alignment information to create framed... |
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8214200 |
Fast MDCT (modified discrete cosine transform) approximation of a windowed sinusoid
Methods and apparatus are disclosed for approximating an MDCT coefficient of a block of windowed sinusoid having a defined frequency, the block being multiplied by a window sequence and having a... |
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8195471 |
Sampling rate conversion apparatus, coding apparatus, decoding apparatus and methods thereof
A coding apparatus reduces a circuit scale and the amount of coding processing calculation. A frequency domain conversion section performs a frequency analysis of the signal sampled at a sampling... |
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8175867 |
Voice communication apparatus
A voice communication apparatus includes a communication portion that receives a plurality of frames including at least a first frame having first voice data and a second frame having second voice... |
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8145478 |
Apparatus and method for widening audio signal band
An audio signal band expanding apparatus (100a) includes a harmonic generator (3) that receives an input audio signal having a predetermined band and generates, based on the input audio signal,... |
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8078458 |
Packet loss concealment for sub-band predictive coding based on extrapolation of sub-band audio waveforms
A technique is described for concealing the effect of a lost frame in a series of frames representing an encoded audio signal in a sub-band predictive coding system. In accordance with the... |
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8041562 |
Constrained and controlled decoding after packet loss
A technique is described herein for reducing audible artifacts in an audio output signal generated by decoding a received frame in a series of frames representing an encoded audio signal in a... |
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8010372 |
Apparatus and method of encoding and decoding audio signal
In one embodiment, the method includes receiving an audio data frame having at least first and second channels. The first and second channels are synchronously subdivided into blocks such that the... |
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8000960 |
Packet loss concealment for sub-band predictive coding based on extrapolation of sub-band audio waveforms
A technique is described for concealing the effect of a lost frame in a series of frames representing an encoded audio signal in a sub-band predictive coding system. In accordance with the... |
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7996216 |
Apparatus and method of encoding and decoding audio signal
In one embodiment, at least first and second channels in a frame of the audio signal are independently subdivided into blocks if the first and second channels are not correlated with each other.... |
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7979273 |
Method and apparatus for the digitization of and for the data compression of analog signals
The invention is based on the idea of providing a method for high-resolution, waveform-preserving digitization of analog signals, wherein conventional scalar logarithmic quantization is... |
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7962332 |
Apparatus and method of encoding and decoding audio signal
In one embodiment, the method includes receiving an audio data frame having at least first and second channels. The first and second channels are independently subdivided into blocks if the first... |
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7937271 |
Audio decoding using variable-length codebook application ranges
Provided are, among other things, systems, methods and techniques for decoding an audio signal from a frame-based bit stream. Each frame includes processing information pertaining to the frame and... |
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7873512 |
Sound encoder and sound encoding method
Even when a combination of the stegonography technique and prediction encoding is applied to sound encoding, a sound encoder does not cause deterioration in quality of decoded signals. In the... |
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7873110 |
MPEG smart video transport processor with different transport packet handling
An interrupt sensitive extract byte instruction scheme is presented herein. The interrupt sensitive extract by instruction extracts bytes from data, depending on the presence of an interrupt. The... |
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7856096 |
Erasure of DTMF signal transmitted as speech data
A DTMF signal processing apparatus of the present invention comprises a data divider unit, a DTMF signal component analyzer unit, a weighting processing unit, a buffer, a DTMF signal erasure... |
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7825834 |
Scalable audio data arithmetic decoding method, medium, and apparatus, and method, medium, and apparatus truncating audio data bitstream
A scalable audio data arithmetic decoding method, medium, and apparatus, and a method, medium, and apparatus truncating an audio data bitstream. The arithmetic decoding method of decoding a... |
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7822800 |
Apparatus and method for performing a calculation operation
The invention provides an apparatus and a method for performing a calculation operation with at least one input signal consisting of signal sections, wherein each signal section of said input... |
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7756711 |
Sampling rate conversion apparatus, encoding apparatus decoding apparatus and methods thereof
A coding apparatus capable of reducing a circuit scale and also reducing the amount of coding processing calculation is disclosed. In this apparatus, frequency domain conversion section (103)... |