METHOD AND DEVICE FOR ARITHMETIC ENCODING OR ARITHMETIC DECODING
Granted: April 29, 2021
Application Number:
20210126649
The invention proposes a method and a device for arithmetic encoding of a current spectral coefficient using preceding spectral coefficients. Said preceding spectral coefficients are already encoded and both, said preceding and current spectral coefficients, are comprised in one or more quantized spectra resulting from quantizing time-frequency-transform of video, audio or speech signal sample values. Said method comprises processing the preceding spectral coefficients, using the…
Audio Control Using Auditory Event Detection
Granted: April 29, 2021
Application Number:
20210126606
In some embodiments, a method for processing an audio signal in an audio processing apparatus is disclosed. The method includes receiving an audio signal and a parameter, the parameter indicating a location of an auditory event boundary. An audio portion between consecutive auditory event boundaries constitutes an auditory event. The method further includes applying a modification to the audio signal based in part on an occurrence of the auditory event. The parameter may be generated by…
SYSTEM FOR 3D IMAGE PROJECTIONS AND VIEWING
Granted: April 29, 2021
Application Number:
20210124183
Shaped glasses have curved surface lenses with spectrally complementary filters disposed thereon. The filters curved surface lenses are configured to compensate for wavelength shifts occurring due to viewing angles and other sources. Complementary images are projected for viewing through projection filters having passbands that pre-shift to compensate for subsequent wavelength shifts. At least one filter may have more than 3 primary passbands. For example, two filters include a first…
LOUDNESS CONTROL METHODS AND DEVICES
Granted: April 22, 2021
Application Number:
20210120337
Audio data in a first format may be processed to produce audio data in a second format, which may be a reduced or simplified version of the first format. A loudness correction process may produce loudness-corrected audio data in the second format. A first power of the audio data in the second format and a second power of the loudness-corrected audio data in the second format may be determined. A second-format loudness correction factor for the audio data in the second format may be…
VIDEO CONTENT CONTROLLER AND ASSOCIATED METHOD
Granted: April 22, 2021
Application Number:
20210120306
A video content controller includes a memory and a microprocessor. The memory is configured to store non-transitory computer-readable instructions and video data representing a temporally-varying scene having a plurality of scene-regions. The microprocessor adapted to execute the instructions to (i) receive a current stream-segment of a video stream corresponding to a first scene-region of the plurality of scene-regions during a current playback-time interval, (ii) download, to a memory,…
METHODS AND SYSTEMS FOR RENDERING OBJECT BASED AUDIO
Granted: April 22, 2021
Application Number:
20210118453
Methods for generating an object based audio program, renderable in a personalizable manner, and including a bed of speaker channels renderable in the absence of selection of other program content (e.g., to provide a default full range audio experience). Other embodiments include steps of delivering, decoding, and/or rendering such a program. Rendering of content of the bed, or of a selected mix of other content of the program, may provide an immersive experience. The program may include…
METHODS, APPARATUS AND SYSTEMS FOR ENCODING AND DECODING OF DIRECTIONAL SOUND SOURCES
Granted: April 22, 2021
Application Number:
20210118452
Some disclosed methods involve encoding or decoding directional audio data. Some encoding methods may involve receiving a mono audio signal corresponding to an audio object and a representation of a radiation pattern corresponding to the audio object. The radiation pattern may include sound levels corresponding to plurality of sample times, a plurality of frequency bands and a plurality of directions. The methods may involve encoding the mono audio signal and encoding the source…
METHODS AND SYSTEMS FOR RENDERING AUDIO BASED ON PRIORITY
Granted: April 15, 2021
Application Number:
20210112358
Embodiments are directed to a method of rendering adaptive audio by receiving input audio comprising channel-based audio, audio objects, and dynamic objects, wherein the dynamic objects are classified as sets of low-priority dynamic objects and high-priority dynamic objects, rendering the channel-based audio, the audio objects, and the low-priority dynamic objects in a first rendering processor of an audio processing system, and rendering the high-priority dynamic objects in a second…
SYSTEM AND METHOD FOR DISPLAYING HIGH QUALITY IMAGES IN A DUAL MODULATION PROJECTION SYSTEM
Granted: April 15, 2021
Application Number:
20210112224
A novel high efficiency image projection system includes a beam-steering modulator, an amplitude modulator, and a controller. In a particular embodiment the controller generates beam-steering drive values from image data and uses the beam-steering drive values to drive the beam-steering modulator. Additionally, the controller utilizes the beam-steering drive values to generate a lightfield simulation of a lightfield projected onto the amplitude modulator by the beam-steering modulator.…
ECHO ESTIMATION AND MANAGEMENT WITH ADAPTATION OF SPARSE PREDICTION FILTER SET
Granted: April 8, 2021
Application Number:
20210104254
Methods for echo estimation or echo management (echo suppression or cancellation) on an input audio signal, with at least one of adaptation of a sparse prediction filter set, modification (for example, truncation) of adapted prediction filter impulse responses, generation of a composite impulse response from adapted prediction filter impulse responses, or use of echo estimation and/or echo management resources in a manner determined at least in part by classification of the input audio…
POSITIONAL ZERO LATENCY
Granted: April 1, 2021
Application Number:
20210099693
Based on viewing tracking data, a viewer's view direction to a three-dimensional (3D) scene depicted by a first video image is determined. The first video image has been streamed in a video stream to the streaming client device before the first time point and rendered with the streaming client device to the viewer at the first time point. Based on the viewer's view direction, a target view portion is identified in a second video image to be streamed in the video stream to the streaming…
Automatic Multimedia Production for Performance of an Online Activity
Granted: April 1, 2021
Application Number:
20210093967
A system is configured to receive player multimedia having live coverage of physical expressions or actions of a player in an online activity and activity multimedia of live participation in the online activity associated with one or more play accounts. In a near continuous fashion, the system is configured to select in real time, for each time point, one or more player items being portions of the player multimedia or one or more activity items being portions of the activity multimedia…
ORIENTATION-AWARE SURROUND SOUND PLAYBACK
Granted: March 25, 2021
Application Number:
20210092523
Example embodiments disclosed herein relate to orientation-aware surround sound playback. A method for processing audio on an electronic device that includes a plurality of loudspeakers is disclosed, the loudspeakers arranged in more than one dimension of the electronic device. The method includes, responsive to receipt of a plurality of received audio streams, generating a rendering component associated with the plurality of received audio streams, determining an orientation dependent…
LINEAR ENCODER FOR IMAGE/VIDEO PROCESSING
Granted: March 25, 2021
Application Number:
20210092461
In some embodiments, an encoder device is disclosed to receive an input video stream containing images in a first dynamic range including a first image. The device receives a second image representing the first image. The device obtains statistical data for the first and the second images. The device determines, at a first time delay, a scene cut data from the input video stream and storing the scene cut data in a first sliding window. The device determines, at a second time delay, a…
SYSTEMS AND METHODS TO OPTIMIZE THE LOAD OF MULTIPATH DATA TRANSPORTATION
Granted: March 25, 2021
Application Number:
20210091885
A control unit of a multipath data transportation system that optimizes the load of the multiple communication paths of this system when the system transmits a data segment over these paths in parallel with forward error correction. The control unit determines an optimized number of packets to send over each path based on a prediction of quality for each path. The transmitted packets include systematic packets and coded packets.
Methods and Apparatus for Adjusting a Level of an Audio Signal
Granted: March 25, 2021
Application Number:
20210090583
A method performed in an audio decoder for decoding M encoded audio channels representing N audio channels is disclosed. The method includes receiving a bitstream containing the M encoded audio channels and a set of spatial parameters, decoding the M encoded audio channels, and extracting the set of spatial parameters from the bitstream. The method also includes analyzing the M audio channels to detect a location of a transient, decorrelating the M audio channels, and deriving N audio…
Systems and Methods for Controlling Dual Modulation Displays
Granted: March 25, 2021
Application Number:
20210087047
In one embodiment, a dual modulator display systems and methods for rendering target image data upon the dual modulator display system are disclosed where the display system receives target image data, possible HDR image data and first calculates display control signals and then calculates backlight control signals from the display control signals. This order of calculating display signals and then backlight control signals later as a function of the display systems may tend to reduce…
OPTICAL SYSTEM FOR IMAGE PROJECTORS
Granted: March 18, 2021
Application Number:
20210080737
A projector system comprising a laser light source, a collimating lens, a fly-eye lens, an integrating rod and a first modulator is disclosed. The light from a laser light source/fiber illuminates a collimator to substantially collimate the light and then is transmitted through a fly's-eye lens. The fly's-eye lens provides a desired angular/spatial light distribution for further processing to a first modulator of the projector system.
BLOCK-LEVEL LOSSLESS VIDEO CODING USING IN-LOOP RESHAPING
Granted: March 18, 2021
Application Number:
20210084307
To support lossless mode at the block level when in-loop reshaping (LMCS) is enabled, the following changes are proposed to the existing LMCS pipeline. In intra mode, encode lossless blocks in the original domain, thus bypassing inverse mapping after reconstruction in the decoder. In inter mode, encode lossless blocks in the original domain, thus bypassing both forward mapping after motion compensation and inverse mapping after reconstruction in the decoder. In both modes, disable any…
PERCEPTUALLY-BASED LOSS FUNCTIONS FOR AUDIO ENCODING AND DECODING BASED ON MACHINE LEARNING
Granted: March 18, 2021
Application Number:
20210082444
Computer-implemented methods for training a neural network, as well as for implementing audio encoders and decoders via trained neural networks, are provided. The neural network may receive an input audio signal, generate an encoded audio signal and decode the encoded audio signal. A loss function generating module may receive the decoded audio signal and a ground truth audio signal, and may generate a loss function value corresponding to the decoded audio signal. Generating the loss…
