| Patent Number |
Title Of Patent |
Date Issued |
| D586681 |
Portion of a front panel |
February 17, 2009 |
|
| D566722 |
Display panel with icon |
April 15, 2008 |
|
| 7623673 |
Versatile watermark transport system |
November 24, 2009 |
| Watermark data may be transported by preprocessing one or more elementary data streams. Preprocessing may be achieved by demultiplexing the elementary data stream or by including an extra elementary data stream among the elementary data stream. To insert a watermark in either the ele |
| 7619546 |
Asynchronous sample rate conversion using a digital simulation of an analog filter |
November 17, 2009 |
| The sample rate of a digital signal is converted by a digital simulation of an analog filter. The simulation can update the states of complex poles in the analog filter at arbitrary times using different techniques. One technique updates the states at variable rates. Other techniques |
| 7617109 |
Method for correcting metadata affecting the playback loudness and dynamic range of audio inform |
November 10, 2009 |
| A coded signal conveys encoded audio information and metadata that may be used to control the loudness and dynamic range of the audio information during its playback. If the values for these metadata parameters are set incorrectly, annoying fluctuations in loudness during playback can |
| 7616256 |
Multiple exposure methods and apparatus for electronic cameras |
November 10, 2009 |
| A method for capturing multiple sets of image data with an electronic camera having a shutter and an electronic shutter for selectively allowing light to reach an image sensor comprises opening the shutter and the electronic shutter, allowing light to reach the image sensor for a fir |
| 7610205 |
High quality time-scaling and pitch-scaling of audio signals |
October 27, 2009 |
| 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 or minimally audible, and the signal is time scaled and/or pitch shifted within that reg |
| 7583331 |
Diffuser for light from light source array and displays incorporating same |
September 1, 2009 |
| An optical structure placeable between a backlight array of point light sources and a planar display. The structure distributes light emitted by the point light sources to uniformly illuminate the plane of the display, without introducing significant viewing parallax. The emitted light i |
| 7581837 |
HDR displays and control systems therefor |
September 1, 2009 |
| A display has a screen which incorporates a light modulator. The screen may be a front projection screen or a rear-projection screen. Elements of the light modulator may be controlled to adjust the intensity of light emanating from corresponding areas on the screen. The display may provi |
| 7578606 |
Luminance-preserving, parallax-reducing diffuser |
August 25, 2009 |
| A diffuser incorporates diffuser elements (10) that each include a waveguide (12) coupled between a concentrator (14) and an inverse concentrator (16). The diffuser (44) may be disposed between a backlight (102) and a modulator (114) in a display (100). Luminance ratios of light rays |
| 7551745 |
Volume and compression control in movie theaters |
June 23, 2009 |
| A single control determines both volume and the degree of compression in the reproduction of motion picture soundtracks. For some settings of the control, compression or limiting reduces the highest levels on a movie soundtrack, leaving the dialogue level substantially unchanged, thus |
| 7551341 |
Serial modulation display having binary light modulation stage |
June 23, 2009 |
| 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 optics blur and car |
| 7539319 |
Utilization of filtering effects in stereo headphone devices to enhance spatialization of source |
May 26, 2009 |
| An apparatus for creating, utilizing a pair of oppositely opposed headphone speakers, the sensation of a sound source being spatially distant from the area between the pair of headphones, the apparatus comprising: (a) a series of audio inputs representing audio signals being projecte |
| 7536299 |
Correlating and decorrelating transforms for multiple description coding systems |
May 19, 2009 |
| Transmitters and receivers in multiple description coding systems use correlating and decorrelating transforms to generate and process multiple descriptions of elements of an input signal. The multiple descriptions include groups of correlating transform coefficients that permit recovery |
| 7536021 |
Utilization of filtering effects in stereo headphone devices to enhance spatialization of source |
May 19, 2009 |
| An apparatus for creating, utilizing a pair of oppositely opposed headphone speakers, the sensation of a sound source being spatially distant from the area between the pair of headphones, the apparatus comprising: (a) a series of audio inputs representing audio signals being projecte |
| 7533346 |
Interactive spatalized audiovisual system |
May 12, 2009 |
| An interactive spatialized audiovisual system links a plurality of remote used terminals. The system comprises a networked computer having an associated user database including user status information. Input means are provided at the computer for receiving a plurality of audio streams |
| 7516064 |
Adaptive hybrid transform for signal analysis and synthesis |
April 7, 2009 |
| Analysis and synthesis filter banks such as those used in audio and video coding systems are each implemented by a hybrid transform that comprises a primary transform in cascade with one or more secondary transforms. The primary transforms for the filter banks implement an analysis/synth |
| 7508947 |
Method for combining audio signals using auditory scene analysis |
March 24, 2009 |
| A process for combining audio channels combines the audio channels to produce a combined audio channel and dynamically applies one or more of time, phase, and amplitude or power adjustments to the channels, to the combined channel, or to both the channels and the combined channel. One |
| 7461002 |
Method for time aligning audio signals using characterizations based on auditory events |
December 2, 2008 |
| A method for time aligning audio signal, wherein one signal has been derived from the other or both have been derived from another signal, comprises deriving reduced-information characterizations of the audio signals, auditory scene analysis. The time offset of one characterization w |
| 7454331 |
Controlling loudness of speech in signals that contain speech and other types of audio material |
November 18, 2008 |
| Mechanisms are known that allow receivers to control loudness of speech in broadcast signals but these mechanisms require an estimate of speech loudness be inserted into the signal. Disclosed techniques provide improved estimates of loudness. According to one implementation, an indic |
| 7448061 |
Frame synchronization in an ethernet NTP time-keeping digital cinema playback system |
November 4, 2008 |
| In a digital cinema network of NTP-timekeeping devices in which one of the devices decodes video information, the scheduling of future instructions takes into account the differences between the nominal and actual frame rates of the video decoding device and the network's NTP latency. |
| 7447977 |
Method and system for optimizing forward error correction of multimedia streaming over wireless |
November 4, 2008 |
| The loss of packets in a communication system can be minimized in an optimal manner by adapting a set of error correction (EC) parameters in response to a calculated probability of packet loss. The calculated probability is obtained from derived algorithms that are applied to a set o |
| 7447722 |
Low latency computation in real time utilizing a DSP processor |
November 4, 2008 |
| A method for applying a computation utilizing a processor (112) capable of accessing an on-chip memory (114) and data from an off-chip source (116), the method comprising the iterative steps of retrieving at the on-chip memory (114) successive frames of input data from the off-chip sourc |
| 7447631 |
Audio coding system using spectral hole filling |
November 4, 2008 |
| Audio coding processes like quantization can cause spectral components of an encoded audio signal to be set to zero, creating spectral holes in the signal. These spectral holes can degrade the perceived quality of audio signals that are reproduced by audio coding systems. An improved dec |
| 7428639 |
Encrypted and watermarked temporal and resolution layering in advanced television |
September 23, 2008 |
| A method and apparatus for image compression using temporal and resolution layering of compressed image frames, and which provides encryption and watermarking capabilities. In particular, layered compression allows a form of modularized decomposition of an image that supports flexible |
| 7419267 |
HDR displays with overlapping dual modulation |
September 2, 2008 |
| A display has a screen which incorporates a light modulator. The screen may be a front projection screen or a rear-projection screen. Elements of the light modulator may be controlled to adjust the intensity of light emanating from corresponding areas on the screen. The display may provi |
| 7418394 |
Method and system for operating audio encoders utilizing data from overlapping audio segments |
August 26, 2008 |
| The time needed to encode an input audio stream is reduced by dividing the stream into two or more overlapping segments of audio information blocks, applying an encoding process to each segment to generate encoded segments in parallel, and appending the encoded segments to form an encode |
| 7413309 |
High dynamic range display devices |
August 19, 2008 |
| A display has a screen which incorporates a light modulator. The screen may be a front projection screen or a rear-projection screen. Elements of the light modulator may be controlled to adjust the intensity of light emanating from corresponding areas on the screen. The display may provi |
| 7413307 |
High dynamic range display devices |
August 19, 2008 |
| A display has a first array of pixels connected to emit individually-controlled amounts of light onto a second array of pixels. The second array of pixels is connected to pass individually-controllable portions of the light. The display has a controller connected to control the pixel |
| 7406412 |
Reduced computational complexity of bit allocation for perceptual coding |
July 29, 2008 |
| A process that allocates bits for quantizing spectral components in a perceptual coding system is performed more efficiently by obtaining an accurate estimate of the optimal value for one or more coding parameters that are used in the bit allocation process. In one implementation for a |
| 7403332 |
High dynamic range display devices |
July 22, 2008 |
| 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-emitters and elements of |
| 7400653 |
Maintaining synchronization of streaming audio and video using internet protocol |
July 15, 2008 |
| A playback system in a digital cinema network synchronizes the presentation of visual and aural content by deriving timing information for packets of information that are conveyed in video and audio data streams, examining the timing information to determine if any misalignment betwe |
| 7395211 |
Modulating one or more parameters of an audio or video perceptual coding system in response to s |
July 1, 2008 |
| A method of modifying the operation of the encoder function and/or the decoder function of a perceptual coding system in accordance with supplemental information, such as a watermark, so that the supplemental information may be detectable in the output of the decoder function. One or |
| 7377652 |
HDR displays having location specific modulation |
May 27, 2008 |
| A display has a screen which incorporates a light modulator. The screen may be a front projection screen or a rear-projection screen. Elements of the light modulator may be controlled to adjust the intensity of light emanating from corresponding areas on the screen. The display may provi |
| 7370979 |
Calibration of displays having spatially-variable backlight |
May 13, 2008 |
| 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-emitters and elements of |
| 7366242 |
Median filter combinations for video noise reduction |
April 29, 2008 |
| 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. |
| 7356152 |
Method for expanding an audio mix to fill all available output channels |
April 8, 2008 |
| Audio sources in typical computer systems provide different numbers of channels of audio signals to a mixing component of the operating system. This conventional arrangement usually prevents the audio signals from all sources from being played back through all output channels. Novel |
| 7337118 |
Audio coding system using characteristics of a decoded signal to adapt synthesized spectral comp |
February 26, 2008 |
| 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. Spectral components are synthesized having the assessed characteristics. |
| 7321913 |
Digital multirate filtering |
January 22, 2008 |
| A method of determining filter coefficients for filter stages in a multirate digital filter device to achieve a desired filter response. The method includes the step of determining a first plurality of evenly spaced sample points representing the desired response function on a logari |
| 7318035 |
Audio coding systems and methods using spectral component coupling and spectral component regene |
January 8, 2008 |
| 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 spectral components of multiple channels of signals in a composite form. An audio decoder |
| 7318027 |
Conversion of synthesized spectral components for encoding and low-complexity transcoding |
January 8, 2008 |
| In an audio coding system, an encoding transmitter represents encoded spectral components as normalized floating-point numbers. The transmitter provides first and second control parameters that may be used to transcode the encoded spectral parameters. A transcoder uses first control |
| 7313519 |
Transient performance of low bit rate audio coding systems by reducing pre-noise |
December 25, 2007 |
| 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 transient in the audio signal stream and shifting the temporal relationship of the transient |
| 7292902 |
Frame-based audio transmission/storage with overlap to facilitate smooth crossfading |
November 6, 2007 |
| Methods for splicing PCM audio frames form modified frames by appending to each frame either a portion of the next preceding frame or the next following frame. According to a first approach, splices are obtained by fading up and fading down a frame end and a frame appendage only at a |
| 7283954 |
Comparing audio using characterizations based on auditory events |
October 16, 2007 |
| A method for determining if one audio signal is derived from another audio signal or if two audio signals are derived from the same audio signal compares reduced-information characterizations of said audio signals, wherein said characterizations are based on auditory scene analysis. The |
| 7280664 |
Method for apparatus for audio matrix decoding |
October 9, 2007 |
| A method derives at least three audio signals, each associated with a direction, from two input audio signals. In response to the two input signals, a passive matrix generates a plurality of passive matrix audio signals, including two pairs of passive matrix audio signals, a first pa |
| 7272566 |
Reducing scale factor transmission cost for MPEG-2 advanced audio coding (AAC) using a lattice b |
September 18, 2007 |
| A perceptual encoder divides an audio signal into successive time blocks, each time block is divided into frequency bands, and a scale factor is assigned to each of ones of the frequency bands. Bits per block increase with scale factor values and band-to-band variations in scale factor |
| 7266714 |
Method an apparatus for adjusting the time of a clock if it is determined that the degree of adj |
September 4, 2007 |
| A free-running secure clock in a computing device that is adjustable by a user of the device so long as cumulative adjustments do not exceed a predicted clock drift. The clock may be initially set by the user or by a trusted time authority or the like. Such a clock may be required in a |
| 7251337 |
Volume control in movie theaters |
July 31, 2007 |
| 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 gain of the center fr |
| 7193538 |
Matrix improvements to lossless encoding and decoding |
March 20, 2007 |
| A lossless encoder and decoder are provided for transmitting a multichannel signal on a medium such as DVD-Audio. The encoder accepts additionally a downmix specification and splits the encoded stream into two substreams, such that a two-channel decoder of meagre computational power |
| 7152082 |
Audio frequency response processing system |
December 19, 2006 |
| The invention provides a method and system for forming an output impulse response function. The method includes the steps of creating an initial impulse response, and dividing the impulse response into a head portion and a tail portion. The tail portion is high pass filtered, and low |
