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| Number | Title | Issue Date |
| 8184919 | Representing and reconstructing high dynamic range images A high dynamic range image can be recovered from a full-resolution lower-dynamic-range image and a reduced-resolution higher-dynamic-range image. Information regarding higher spatial frequencies may be obtained by extracting high spatial frequencies from the lower-d... | 05/22/2012 |
| 8174546 | Apparatus and methods for rapid image rendering on dual-modulator displays Apparatus and methods are provided that employ one or more of a variety of techniques for reducing the time required to display high resolution images on a high dynamic range display having a light source layer and a display layer. In one technique, the image resolu... | 05/08/2012 |
| 8172401 | Edge lit locally dimmed display An edge lit locally dimmed display has a spatial light modulator illuminated by a light source. The light source is positioned at an edge and behind the spatial light modulator. The spatial light modulator is illuminated with a low resolution version of a desired im... | 05/08/2012 |
| RE43360 | Enhancing image quality in an image system A technique for improving image compression by pre-processing the image frames. In particular, methods for de-interlacing and noise reduction using combinations of median filters, applied both spatially and temporally, with and without motion analysis, are described... | 05/08/2012 |
| 8170882 | Multichannel audio coding Multiple channels of audio are combined either to a monophonic composite signal or to multiple channels of audio along with related auxiliary information from which multiple channels of audio are reconstructed, including improved downmixing of multiple audio channel... | 05/01/2012 |
| 8164602 | Wide color gamut displays A display has a modulator illuminated by a illuminator comprising an array of light sources. The array includes light sources of a plurality of colors. The light sources of different colors are individually controllable. Within each color, the light sources that ill... | 04/24/2012 |
| 8160142 | Interpolation of video compression frames Coding techniques for a video image compression system involve improving an image quality of a sequence of two or more bi-directionally predicted intermediate frames, where each of the frames includes multiple pixels. One method involves determining a brightness val... | 04/17/2012 |
| 8155927 | Method and apparatus for improving noise discrimination in multiple sensor pairs Noise discrimination in signals from a plurality of sensors is conducted by enhancing the phase difference in the signals such that off-axis pick-up is suppressed while on-axis pick-up is enhanced. Alternatively, attenuation/expansion are applied to the signals in a... | 04/10/2012 |
| 8155926 | Method and apparatus for accommodating device and/or signal mismatch in a sensor array Noise discrimination in signals from a plurality of sensors is conducted by enhancing the phase difference in the signals such that off-axis pick-up is suppressed while on-axis pick-up is enhanced. Alternatively, attenuation/expansion are applied to the signals in a... | 04/10/2012 |
| 8155323 | Method for improving spatial perception in virtual surround A method for improving the spatial perception of multiple sound channels when reproduced by two loudspeakers, generally front-located with respect to listeners, each channel representing a direction, applies some of the channels, such as sound channels representing ... | 04/10/2012 |
| 8149912 | Interpolation of video compression frames Coding techniques for a video image compression system involve improving an image quality of a sequence of two or more bi-directionally predicted intermediate frames, where each of the frames includes multiple pixels. One method involves determining a brightness val... | 04/03/2012 |
| 8144881 | Audio gain control using specific-loudness-based auditory event detection In one disclosed aspect, dynamic gain modifications are applied to an audio signal at least partly in response to auditory events and/or the degree of change in signal characteristics associated with said auditory event boundaries. In another aspect, an audio signal... | 03/27/2012 |
| 8144774 | Interpolation of video compression frames Coding techniques for a video image compression system involve improving an image quality of a sequence of two or more bi-directionally predicted intermediate frames, where each of the frames includes multiple pixels. One method involves determining a brightness val... | 03/27/2012 |
| 8139641 | Interpolation of video compression frames Coding techniques for a video image compression system involve improving an image quality of a sequence of two or more bi-directionally predicted intermediate frames, where each of the frames includes multiple pixels. One method involves determining a brightness val... | 03/20/2012 |
| 8139640 | Interpolation of video compression frames Coding techniques for a video image compression system involve improving an image quality of a sequence of two or more bi-directionally predicted intermediate frames, where each of the frames includes multiple pixels. One method involves determining a brightness val... | 03/20/2012 |
| 8139639 | Interpolation of video compression frames Coding techniques for a video image compression system involve improving an image quality of a sequence of two or more bi-directionally predicted intermediate frames, where each of the frames includes multiple pixels. One method involves determining a brightness val... | 03/20/2012 |
| 8139638 | Interpolation of video compression frames Coding techniques for a video image compression system involve improving an image quality of a sequence of two or more bi-directionally predicted intermediate frames, where each of the frames includes multiple pixels. One method involves determining a brightness val... | 03/20/2012 |
| 8135230 | Enhancing dynamic ranges of images Methods and apparatus according to various aspects take as input image data in a lower-dynamic-range (LDR) format and produce as output enhanced image data having a dynamic range greater than that of the input image data (i.e. higher-dynamic range (HDR) image data).... | 03/13/2012 |
| 8126709 | Broadband frequency translation for high frequency regeneration An audio signal is conveyed more efficiently by transmitting or recording a baseband of the signal with an estimated spectral envelope and a noise-blending parameter derived from a measure of the signal's noise-like quality. The signal is reconstructed by translatin... | 02/28/2012 |
| 8125702 | Serial modulation display having binary light modulation stage A display has first and second spatial light modulators for modulating light from a light source. The first spatial light modulator has a plurality of elements switchable between ON and OFF states according to a pattern having a spatially-varying density. Transfer o... | 02/28/2012 |
| 8125425 | HDR displays with dual modulators having different resolutions A display has a screen which incorporates a light modulator. The screen may be a front projection screen or a rear-projection screen. The screen is illuminated with light from a light source comprising an array of controllable light-emitters. The controllable-emitte... | 02/28/2012 |
| 8111754 | Interpolation of video compression frames Coding techniques for a video image compression system involve improving an image quality of a sequence of two or more bi-directionally predicted intermediate frames, where each of the frames includes multiple pixels. One method involves determining a brightness val... | 02/07/2012 |
| 8111192 | Beam former using phase difference enhancement Noise discrimination in signals from a plurality of sensors is conducted by enhancing the phase difference in the signals such that off-axis pick-up is suppressed while on-axis pick-up is enhanced. Alternatively, attenuation/expansion are applied to the signals in a... | 02/07/2012 |
| 8103006 | Spatial resolution of the sound field for multi-channel audio playback systems by deriving signals with high order angular terms Audio signals that represent a sound field with increased spatial resolution are obtained by deriving signals that represent the sound field with high-order angular terms. This is accomplished by analyzing input audio signals representing the sound field with zero-o... | 01/24/2012 |
| RE43132 | Volume control for audio signals A motion picture soundtrack reproduction system has a center front soundtrack channel and a plurality of other soundtrack channels. A volume control adjusts the gain of all the channels. The volume control has a range of settings from a minimum to a maximum, the gai... | 01/24/2012 |
| 8090120 | Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal The invention relates to the measurement and control of the perceived sound loudness and/or the perceived spectral balance of an audio signal. An audio signal is modified in response to calculations performed at least in part in the perceptual (psychoacoustic) loudn... | 01/03/2012 |
| 8085941 | System and method for dynamic sound delivery A dynamic range manipulation system, for use for example in an audio playback system such as a two-way communication system, mobile telephone, MP3 player, and the like, obtains a measure of ambient noise at the playback location and adjusts the gain of the drive sig... | 12/27/2011 |
| 8059110 | Motion-blur compensation in backlit displays A display has a screen which incorporates a light modulator. The screen may be a front projection screen or a rear-projection screen. The screen is illuminated with light from a light source comprising an array of controllable light-emitters. The controllable-emitte... | 11/15/2011 |
| RE42935 | Coding techniques using estimated spectral magnitude and phase derived from MDCT coefficients Estimates of spectral magnitude and phase are obtained by an estimation process using spectral information from analysis filter banks such as the Modified Discrete Cosine Transform. The estimation process may be implemented by convolution-like operations with impuls... | 11/15/2011 |
| 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 |
| 8050323 | Interpolation of video compression frames Coding techniques for a video image compression system involve improving an image quality of a sequence of two or more bi-directionally predicted intermediate frames, where each of the frames includes multiple pixels. One method involves determining a brightness val... | 11/01/2011 |
| 8045719 | Rendering center channel audio An audio upmixer, such as a two-channel to three-channel upmixer, employs a difference in a measure of sound at the ears of a listener in accordance with first and second models, one based on a reproduction of the original channels and the other based on a reproduct... | 10/25/2011 |
| 8045614 | Quantization control for variable bit depth The quantization parameter QP is well-known in digital video compression as an indication of picture quality. Digital symbols representing a moving image are quantized with a quantizing step that is a function QSN of the quantization parameter QP, which f... | 10/25/2011 |
| 8038316 | 3-D color synthesis displays and methods Color displays superpose a two color image component with a monochrome image component to yield full color images. Each image component may be generated by controlling an array of light sources. In some embodiments the monochrome image component is provided by a bac... | 10/18/2011 |
| 8035604 | Driving dual modulation display systems using key frames Methods and systems process image data made up of a series of frames for displaying on a dual modulation display system having a first modulator disposed to illuminate a second modulator. A first modulation signal and a luminance map are not calculated for every fra... | 10/11/2011 |
| 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 |
| 8032385 | Method for correcting metadata affecting the playback loudness of audio information A coded signal conveys encoded audio information and metadata that may be used to control the loudness of the audio information during its playback. If the values for these metadata parameters are set incorrectly, annoying fluctuations in loudness during playback ca... | 10/04/2011 |
| 8031602 | Estimating wireless processing device queue length and estimating signal reception quality in a wireless network The present invention may be used to estimate operational characteristics of devices that transmit and receive streams of information in a communication system. In one application, the level of occupancy of a FIFO buffer in a processing device such as a router or wi... | 10/04/2011 |
| 8019095 | Loudness modification of multichannel audio signals Scaling, by a desired amount sm, the overall perceived loudness Lm of a multichannel audio signal, wherein perceived loudness is a nonlinear function of signal power P, by scaling the perceived loudness of each individual channel Lc ... | 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 |
