Quotables
"There is no reason anyone would want a computer in their home."
Ken Olsen, chairman and founder of Digital Equipment Corporation ; 1977
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8170885 | Wideband audio signal coding/decoding device and method Disclosed is a wideband audio signal coding/decoding device and method that may code a wideband audio signal while maintaining a low bit rate. The wideband audio signal coding device includes an enhancement layer that extracts a first spectrum parameter from an inpu... | 05/01/2012 |
| 8155971 | Audio decoding of multi-audio-object signal using upmixing A method for decoding a multi-audio-object signal having audio signals of first and second types encoded therein, the multi-audio-object signal having a downmix signal and side information having level information of the audio signals of the first and second types i... | 04/10/2012 |
| 8135593 | Methods, apparatuses and system for encoding and decoding signal Methods and apparatuses for encoding a signal and decoding a signal and a system for encoding and decoding are provided. The method for encoding a signal includes performing a classification decision process on high frequency signals of input signals, adaptively enc... | 03/13/2012 |
| 8126721 | Encoding an information signal The transient problem may be sufficiently addressed, and for this purpose, a further delay on the side of the decoding may be reduced if a new SBR frame class is used wherein the frame boundaries are not shifted, i.e. the grid boundaries are still synchronized with ... | 02/28/2012 |
| 8121850 | Encoding apparatus and encoding method An encoding device and an encoding method are provided for encoding by reducing the number of samples to be processed when encoding higher-band spectrum data according to lower-band spectrum data in a wide-band signal. The device and the method can obtain a high-qua... | 02/21/2012 |
| 8117039 | Multi-staging recursive audio frame-based resampling and time mapping A multi-stage recursive sample rate converter (“SRC”) typically embodied as digital signal processor provides for an efficient structure for converting digital audio samples at one frequency, such as 48 kHz, to another frequency, such as 44.1 kHz. A parameter co... | 02/14/2012 |
| 8112286 | Stereo encoding device, and stereo signal predicting method A prediction performance between individual channels of a stereo signal is improved to improve a sound quality of a decoded signal. A first low pass filter LPF interrupts a high-range component of a first channel signal S1, and outputs a first low-range component S1... | 02/07/2012 |
| 8103516 | Subband coding apparatus and method of coding subband A subband coding apparatus carries out subband coding which prevents deterioration in coding performance and improves audio quality of decoded signals. The subband coding apparatus includes a low-band coding section (103) to code a low-band spectrum (S13 | 01/24/2012 |
| 8099293 | Audio signal processing An audio system for processing two channels of audio input to provide more than two output channels. The input may be conventional stereo material or compressed audio signal data. The audio processing includes separating the input signals into frequency bands and pr... | 01/17/2012 |
| 8050933 | Audio coding system using temporal shape of a decoded signal to adapt synthesized spectral components A receiver in an audio coding system receives a signal conveying frequency subband signals representing an audio signal. The subband signals are examined to assess one or more characteristics of the audio signal including temporal shape. Spectral components are synt... | 11/01/2011 |
| 8041578 | Encoding an information signal The transient problem may be sufficiently addressed, and for this purpose, a further delay on the side of the decoding may be reduced if a new SBR frame class is used wherein the frame boundaries are not shifted, i.e. the grid boundaries are still synchronized with ... | 10/18/2011 |
| 8032386 | Apparatus and method of processing an audio signal In one embodiment, the method includes receiving the audio signal including at least one block of audio data and configuration information, and reading coding type information and partitioning information from the configuration information. The coding type informati... | 10/04/2011 |
| 8032387 | Audio coding system using temporal shape of a decoded signal to adapt synthesized spectral components A receiver in an audio coding system receives a signal conveying frequency subband signals representing an audio signal. The subband signals are examined to assess one or more characteristics of the audio signal including temporal shape. Spectral components are synt... | 10/04/2011 |
| 8019614 | Energy shaping apparatus and energy shaping method A temporal processing apparatus includes: a splitter splitting an audio signal, included in the sub-band domain, into diffuse signals indicating reverberating components and direct signals indicating non-reverberating components; a downmix unit generating a downmix ... | 09/13/2011 |
| 8015018 | Multichannel decorrelation in spatial audio coding Each of N audio signals are filtered with a unique decorrelating filter (38) characteristic, the characteristic being a causal linear time-invariant characteristic in the time domain or the equivalent thereof in the frequency domain, and, for each decorrelati... | 09/06/2011 |
| 7953605 | Method and apparatus for audio encoding and decoding using wideband psychoacoustic modeling and bandwidth extension A novel bandwidth extension technique allows information to be encoded and decoded using a fractal self similarity model or an accurate spectral replacement model, or both. Also a multi-band temporal amplitude coding technique, useful as an enhancement to any coding... | 05/31/2011 |
| 7941320 | Cue-based audio coding/decoding Generic and specific C-to-E binaural cue coding (BCC) schemes are described, including those in which one or more of the input channels are transmitted as unmodified channels that are not downmixed at the BCC encoder and not upmixed at the BCC decoder. The specific ... | 05/10/2011 |
| 7895045 | Bitrate constrained variable bitrate audio encoding A hybrid audio encoding technique incorporates both ABR, or CBR, and VBR encoding modes. For each audio coding block, after a VBR quantization loop meets the NMR target, a second quantization loop might be called to adaptively control the final bitrate. That is, if ... | 02/22/2011 |
| 7860721 | Audio encoding device, decoding device, and method capable of flexibly adjusting the optimal trade-off between a code rate and sound quality Provided are an audio encoding device and an audio decoding device, by which optimal trade-off between code rates and sound quality can be flexibly adjusted. A variable frequency segmentation encoding unit includes: difference degree calculation units for calculatin... | 12/28/2010 |
| 7835918 | Encoding and decoding a set of signals An encoding device (1) and method convert a set of signals (l, r) into a dominant signal (m) containing most signal energy, a residual signal (s) containing a remainder of the signal energy, and signal parameters (IID, ICC) associated with the conversion. The... | 11/16/2010 |
| 7831436 | Apparatus for decoding audio data with scalability and method thereof An apparatus for decoding audio data that is capable of reducing the amount of calculations that are performed during the arithmetic decoding of an audio signal coded by bit sliced arithmetic coding (BSAC) to improve the performance of a decoder and a method thereof... | 11/09/2010 |
| 7822617 | Optimized fidelity and reduced signaling in multi-channel audio encoding The invention provides an efficient technique for encoding a multi-channel audio signal. The invention relies on the principle of encoding (S1) a signal representation of one or more of the multiple channels in a first encoding process, and encoding another s... | 10/26/2010 |
| 7809580 | Encoding and decoding of multi-channel audio signals An encoding device (1) for converting a first number (M) of input audio channels into a second, smaller number (N) of output audio channels comprises at least one conversion unit (12) for converting a first signal (Lf; Rf; Co) and a second signal (Lr; ... | 10/05/2010 |
| 7805314 | Method and apparatus to quantize/dequantize frequency amplitude data and method and apparatus to audio encode/decode using the method and apparatus to quantize/dequantize frequency amplitude data A method and apparatus to quantize/dequantize frequency amplitude data and a method and apparatus to audio encode/decode using the method and apparatus to quantize/dequantize the frequency amplitude data. The method includes calculating and quantizing power of frequ... | 09/28/2010 |
| 7756715 | Apparatus, method, and medium for processing audio signal using correlation between bands Apparatus, method, and medium for processing an audio signal using a correlation between bands are provided. The apparatus includes an encoding unit encoding an input audio signal and a decoding unit decoding the encoded input audio signal. The encoding unit include... | 07/13/2010 |
| 7742927 | Spectral enhancing method and device The present invention relates to a spectral enhancement method and to an apparatus carrying out this method. The method of the invention enhanced the spectral content of a signal having an incomplete spectrum including a first spectral frequency band, the method com... | 06/22/2010 |
| 7739120 | Selection of coding models for encoding an audio signal The invention relates to a method of selecting a respective coding model for encoding consecutive sections of an audio signal, wherein at least one coding model optimized for a first type of audio content and at least one coding model optimized for a second type of ... | 06/15/2010 |
| 7693721 | Hybrid multi-channel/cue coding/decoding of audio signals Part of the spectrum of two or more input signals is encoded using conventional coding techniques, while encoding the rest of the spectrum using binaural cue coding (BCC). In BCC coding, spectral components of the input signals are downmixed and BCC parameters (e.g.... | 04/06/2010 |
| 7689428 | Acoustic signal encoding device, and acoustic signal decoding device An acoustic signal encoding device for down-mixing at different ratios to encode a multichannel signal with a small number of channels, and an acoustic signal decoding device for decoding the signal encoded by the acoustic signal encoding device. In these devices, w... | 03/30/2010 |
| 7660720 | Lossless audio coding/decoding method and apparatus A lossless audio coding and/or decoding method and apparatus are provided. The coding method includes: mapping the audio signal in the frequency domain having an integer value into a bit-plane signal with respect to the frequency; obtaining a most significant bit an... | 02/09/2010 |
| 7644003 | Cue-based audio coding/decoding Generic and specific C-to-E binaural cue coding (BCC) schemes are described, including those in which one or more of the input channels are transmitted as unmodified channels that are not downmixed at the BCC encoder and not upmixed at the BCC decoder. The specific ... | 01/05/2010 |
| 7634413 | Bitrate constrained variable bitrate audio encoding A hybrid audio encoding technique incorporates both ABR, or CBR, and VBR encoding modes. For each audio coding block, after a VBR quantization loop meets the NMR target, a second quantization loop might be called to adaptively control the final bitrate. That is, if ... | 12/15/2009 |
| 7617110 | Lossless audio decoding/encoding method, medium, and apparatus A lossless audio encoding/decoding method, medium, and apparatus. The lossless audio encoding method includes converting an audio signal in a time domain into an audio spectral signal with an integer in a frequency domain, mapping the audio spectral signal in the fr... | 11/10/2009 |
| 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 from a first model set that includes multiple entropy models. Each o... | 10/06/2009 |
| 7523039 | Method for encoding digital audio using advanced psychoacoustic model and apparatus thereof A digital audio encoding method using an advanced psychoacoustic model is provided. The audio encoding method including determining the type of a window according to the characteristic of an input audio signal; generating a complex modified discrete cosine transform... | 04/21/2009 |
| 7519538 | Audio signal encoding or decoding Encoding an audio signal is provided wherein the audio signal includes a first audio channel and a second audio channel, the encoding comprising subband filtering each of the first audio channel and the second audio channel in a complex modulated filterbank to provi... | 04/14/2009 |
| 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 block for a current section of an input signal is written. In addition... | 02/24/2009 |
| 7490044 | Audio signal processing An audio system for processing two channels of audio input to provide more than two output channels. The input may be conventional stereo material or compressed audio signal data. The audio processing includes separating the input signals into frequency bands and pr... | 02/10/2009 |
| 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 of the first coder together represent a current section of an input si... | 11/18/2008 |
| 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 and run-level coding of run lengths and levels of quantized audio data... | 10/07/2008 |
