| Patent application number | Description | Published |
|---|
| 20090024398 | APPARATUS AND METHOD FOR LOW COMPLEXITY COMBINATORIAL CODING OF SIGNALS - The invention utilizes low complexity estimates of complex functions to perform combinatorial coding of signal vectors. The invention disregards the accuracy of such functions as long as certain sufficient properties are maintained. The invention in turn may reduce computational complexity of certain coding and decoding operations by two orders of magnitude or more for a given signal vector input. | 01-22-2009 |
| 20090100121 | APPARATUS AND METHOD FOR LOW COMPLEXITY COMBINATORIAL CODING OF SIGNALS - During operation of an encoder, a signal vector (x) is received. A first multi-precision operand (Ψ′ | 04-16-2009 |
| 20090112607 | METHOD AND APPARATUS FOR GENERATING AN ENHANCEMENT LAYER WITHIN AN AUDIO CODING SYSTEM - During operation an input signal to be coded is received and coded to produce a coded audio signal. The coded audio signal is then scaled with a plurality of gain values to produce a plurality of scaled coded audio signals, each having an associated gain value and a plurality of error values are determined existing between the input signal and each of the plurality of scaled coded audio signals. A gain value is then chosen that is associated with a scaled coded audio signal resulting in a low error value existing between the input signal and the scaled coded audio signal. Finally, the low error value is transmitted along with the gain value as part of an enhancement layer to the coded audio signal. | 04-30-2009 |
| 20090231169 | Method and Apparatus for Low Complexity Combinatorial Coding of Signals - To reduce the complexity of the encoding/decoding of pulse positions and/or pulse magnitudes associated with complex combinatorial computations, a method and structure for encoding and decoding of pulse position and/or pulse magnitudes requires fewer computations of these combinatorial functions. Adaptive switching between coding or encoding is performed in accordance with the estimated density of the plurality of occupied positions. | 09-17-2009 |
| 20090259477 | Method and Apparatus for Selective Signal Coding Based on Core Encoder Performance - In a selective signal encoder, an input signal is first encoded using a core layer encoder to produce a core layer encoded signal. The core layer encoded signal is decoded to produce a reconstructed signal and an error signal is generated as the difference between the reconstructed signal and the input signal. The reconstructed signal is compared to the input signal. One of two or more enhancement layer encoders selected dependent upon the comparison and used to encode the error signal. The core layer encoded signal, the enhancement layer encoded signal and the selection indicator are output to the channel (for transmission or storage, for example). | 10-15-2009 |
| 20100125453 | APPARATUS AND METHOD FOR ENCODING AT LEAST ONE PARAMETER ASSOCIATED WITH A SIGNAL SOURCE - Apparatus ( | 05-20-2010 |
| 20100125879 | METHOD AND APPARATUS FOR PURCHASING A SOUNDTRACK WHEN VIEWING A MOVIE OR OTHER PROGRAM DELIVERED BY A CONTENT DELIVERY SYSTEM - A method is provided for offering for purchase supplemental content associated with a multimedia program. The method includes receiving over a content delivery system a multimedia program and supplemental content associated with the program. While the program is being rendered, an option is presented to a user to acquire the supplemental content. | 05-20-2010 |
| 20100169087 | SELECTIVE SCALING MASK COMPUTATION BASED ON PEAK DETECTION - A set of peaks in a reconstructed audio vector Ŝ of a received audio signal is detected and a scaling mask ψ(Ŝ) based on the detected set of peaks is generated. A gain vector g* is generated based on at least the scaling mask and an index j representative of the gain vector. The reconstructed audio signal is scaled with the gain vector to produce a scaled reconstructed audio signal. A distortion is generated based on the audio signal and the scaled reconstructed audio signal. The index of the gain vector based on the generated distortion is output. | 07-01-2010 |
| 20100169091 | DEVICE, SYSTEM AND METHOD FOR PROVIDING TARGETED ADVERTISEMENTS AND CONTENT - An aspect of the present invention is drawn to an audio data processing device for use by a user to control a system and for use with a microphone, a user demographic profiles database and a content/ad database. The microphone may be operable to detect speech and to generate speech data based on the detected speech. The user demographic profiles database may be capable of having demographic data stored therein. The content/ad database may be capable of having at least one of content data and advertisement data stored therein. The audio data processing device includes a voice recognition portion, a voice analysis portion and a speech to text portion. The voice recognition portion may be operable to process user instructions based on the speech data. The voice analysis portion may be operable to determine characteristics of the user based on the speech data. The speech to text portion may be operable to determine interests of the user. | 07-01-2010 |
| 20100169099 | METHOD AND APPARATUS FOR GENERATING AN ENHANCEMENT LAYER WITHIN A MULTIPLE-CHANNEL AUDIO CODING SYSTEM - During operation a multiple channel audio input signal is received and coded to generate a coded audio signal. A balance factor having balance factor components each associated with an audio signal of the multiple channel audio signal is generated. A gain value to be applied to the coded audio signal to generate an estimate of the multiple channel audio signal based on the balance factor and the multiple channel audio signal is determined, with the gain value configured to minimize a distortion value between the multiple channel audio signal and the estimate of the multiple channel audio signal. The representation of the gain value may be output for transmission and/or storage. | 07-01-2010 |
| 20100169100 | SELECTIVE SCALING MASK COMPUTATION BASED ON PEAK DETECTION - A set of peaks in a reconstructed audio vector Ŝ of a received audio signal is detected and a scaling mask ψ(Ŝ) based on the detected set of peaks is generated. A gain vector g* is generated based on at least the scaling mask and an index j representative of the gain vector. The reconstructed audio signal is scaled with the gain vector to produce a scaled reconstructed audio signal. A distortion is generated based on the audio signal and the scaled reconstructed audio signal. The index of the gain vector based on the generated distortion is output. | 07-01-2010 |
| 20100169101 | METHOD AND APPARATUS FOR GENERATING AN ENHANCEMENT LAYER WITHIN A MULTIPLE-CHANNEL AUDIO CODING SYSTEM - During operation a multiple channel audio input signal is received and coded to generate a coded audio signal. A balance factor having balance factor components each associated with an audio signal of the multiple channel audio signal is generated. A gain value to be applied to the coded audio signal to generate an estimate of the multiple channel audio signal based on the balance factor and the multiple channel audio signal is determined, with the gain value configured to minimize a distortion value between the multiple channel audio signal and the estimate of the multiple channel audio signal. The representation of the gain value may be output for transmission and/or storage. | 07-01-2010 |
| 20100286980 | METHOD AND APPARATUS FOR SPEECH CODING - A method and apparatus for prediction in a speech-coding system extends a 1 | 11-11-2010 |
| 20110095920 | ENCODER AND DECODER USING ARITHMETIC STAGE TO COMPRESS CODE SPACE THAT IS NOT FULLY UTILIZED - An encoder/decoder architecture including an arithmetic encoder that encodes the MSB portions of a Factorial Pulse Coder output, and that encodes an output of a first-level source encoder, e.g., MDCT. Sub-parts (e.g., frequency bands) of portions (e.g., frames) of the signal are sorted in increasing order based on a measure related to signal energy (e.g., signal energy itself). In a system that overlays Arithmetic Encoding on Factorial Pulse coding, the result is bits re-allocated to bands with higher signal energy content, yielding higher signal quality and higher bit utilization efficiency. | 04-28-2011 |
| 20110096830 | Encoder that Optimizes Bit Allocation for Information Sub-Parts - A encoder/decoder architecture ( | 04-28-2011 |
| 20110156932 | HYBRID ARITHMETIC-COMBINATORIAL ENCODER - Hybrid range coding/combinatorial coding (FPC) encoders and decoders are provided. Encoding and decoding can be dynamically switched between range coding and combinatorial according to the ratio of ones to the ratio of bits in a partial remaining sequence in order to reduce the computational complexity of encoding and decoding. | 06-30-2011 |
| 20110161087 | Embedded Speech and Audio Coding Using a Switchable Model Core - A method for processing an audio signal including classifying an input frame as either a speech frame or a generic audio frame, producing an encoded bitstream and a corresponding processed frame based on the input frame, producing an enhancement layer encoded bitstream based on a difference between the input frame and the processed frame, and multiplexing the enhancement layer encoded bitstream, a codeword, and either a speech encoded bitstream or a generic audio encoded bitstream into a combined bitstream based on whether the codeword indicates that the input frame is classified as a speech frame or as a generic audio frame, wherein the encoded bitstream is either a speech encoded bitstream or a generic audio encoded bitstream. | 06-30-2011 |
