Trim-pass correction for cloud-based coding of HDR video
Granted: February 25, 2025
Patent Number:
12238344
In a cloud-based system for encoding high dynamic range (HDR) video, each node receives a video segment and bumper frames. Each segment is subdivided into primary scenes and secondary scenes to derive scene-based forward reshaping functions that minimize the amount of reshaping-related metadata when coding the video segment. When a parent scene of a secondary scene is processed by two or more neighboring nodes, initial forward reshaping functions and trim-pass correction parameters are…
Aggregated wireless power transfer with multiple coils and communication channels
Granted: February 25, 2025
Patent Number:
12237691
This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for wireless power transmission. A wireless power transmission apparatus may transmit multiple wireless power signals to a wireless power reception apparatus configured to combine the power from the multiple wireless power signals. The wireless power reception apparatus may provide a combined wireless power signal to a load such as a battery charger or electronic…
Methods and apparatus for decoding a compressed HOA signal
Granted: February 25, 2025
Patent Number:
12236962
Methods and apparatus for decoding a compressed Higher Order Ambisonics (HOA) representation of a sound or soundfield. The method may include receiving a bit stream containing the compressed HOA representation and decoding, based on a determination that there are multiple layers, the compressed HOA representation from the bitstream to obtain a sequence of decoded HOA representations. A first subset of the sequence of decoded HOA representations is determined based only on corresponding…
Metadata-based power management
Granted: February 25, 2025
Patent Number:
12236902
A method and apparatus therefor comprises: receiving an image data and a power metadata, wherein the power metadata includes information relating to a power consumption or an expected power consumption; determining, based on the power metadata, an amount and a duration of a drive modification that may be performed by a target display in response to the power consumption or the expected power consumption; and performing a power management of the target display based on the power metadata…
Method for encoding and decoding image using adaptive deblocking filtering, and apparatus therefor
Granted: February 18, 2025
Patent Number:
12231697
Disclosed is an encoding/decoding method and apparatus related to adaptive deblocking filtering. There is provided an image decoding method performing adaptive filtering in inter-prediction, the method including: reconstructing, from a bitstream, an image signal including a reference block on which block matching is performed in inter-prediction of a current block to be encoded; obtaining, from the bitstream, a flag indicating whether the reference block exists within a current picture…
Scalable systems for controlling color management comprising varying levels of metadata
Granted: February 18, 2025
Patent Number:
12231660
Several embodiments of scalable image processing systems and methods are disclosed herein whereby color management processing of source image data to be displayed on a target display is changed according to varying levels of metadata.
Image encoding and decoding apparatus, and image encoding and decoding method using contour mode based intra prediction
Granted: February 18, 2025
Patent Number:
12231639
According to the present invention, an adaptive scheme is applied to an image encoding apparatus that includes an inter-predictor, an intra-predictor, a transformer, a quantizer, an inverse quantizer, and an inverse transformer, wherein input images are classified into two or more different categories, and two or more modules from among the inter-predictor, the intra-predictor, the transformer, the quantizer, and the inverse quantizer are implemented to perform respective operations in…
Echo residual suppression
Granted: February 18, 2025
Patent Number:
12231603
A method of audio processing includes calculating an estimated echo residual power based on a long-term amount of echo cancellation as indicated by an estimated power gain profile, where the estimated power gain profile is based on a reference signal and an echo residual signal. Echo suppression of the echo residual may then be performed based on the estimated echo residual power.
Projector display systems having non-mechanical mirror beam steering
Granted: February 18, 2025
Patent Number:
12228886
Dual or multi-modulation display system are disclosed that comprise projector systems with at least one modulator that may employ non-mechanical beam steering modulation. Many embodiments disclosed herein employ a non-mechanical beam steering and/or polarizer to provide for a highlights modulator.
Audio channel spatial translation
Granted: February 11, 2025
Patent Number:
12225368
The present invention is directed to methods and apparatus for translating a first plurality of audio input channels to a second plurality of audio output channels. This includes determining that there is pair-wise coding among any of the first plurality of audio input channels, determining an input/output-mapping matrix for mapping at least a first set of the first plurality of audio input channels to at least a second set of the second plurality of audio output channels; and deriving…
Dual-modulation laser projection systems and methods
Granted: February 11, 2025
Patent Number:
12225329
A dual-modulation laser projection system (100) includes a polarizing beamsplitter (110) for splitting laser light (180) into first (182) and second (184) polarized beams having mutually orthogonal polarizations, a phase spatial light modulator (120) for beam steering the second polarized beam (184), a mechanical amplitude spatial light modulator (130) for amplitude modulating a combination of the first polarized beam (182) and the second polarized beam (186) as beam steered by the phase…
Server device with sequential light display
Granted: February 11, 2025
Patent Number:
D1061504
Low latency audio filterbank having improved frequency resolution
Granted: February 4, 2025
Patent Number:
12218643
A filterbank, suitable for modifying audio signals with dynamic gains in each band, is constructed so that the perceived latency is small, while a larger group delay is applied at low frequencies to enable higher frequency resolution in the lower frequency bands. The higher group delay at low frequencies is achieved by inserting an all-pass filter into the reconstructed filter response.
Audio control using auditory event detection
Granted: February 4, 2025
Patent Number:
12218642
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…
Method and apparatus for controlling power in wireless power transfer system
Granted: February 4, 2025
Patent Number:
12218527
A method and an apparatus for controlling power in a wireless power transfer system are disclosed. A method for controlling power of a main device in a wireless power transfer system comprises the steps of: receiving information necessary for power control from a plurality of peripheral devices; identifying the actual power consumption state of the plurality of peripheral devices on the basis of the information necessary for power control, and determining a reference peripheral device on…
Wireless power transceiver device and an associated method thereof
Granted: February 4, 2025
Patent Number:
12218520
A wireless power transceiver (WPT) device is disclosed. The WPT device includes an energy module and a magnetic interfacing unit comprising a transceiver coil. Further, the WPT device includes a controller configured to generate one of a first control signal and a second control signal based on at least one first parameter of the energy module and at least one second parameter of one of a plurality of external devices. Also, the WPT device includes a bi-directional driver configured to…
Perceptual luminance nonlinearity-based image data exchange across different display capabilities
Granted: February 4, 2025
Patent Number:
12217724
A handheld imaging device has a data receiver that is configured to receive reference encoded image data. The data includes reference code values, which are encoded by an external coding system. The reference code values represent reference gray levels, which are being selected using a reference grayscale display function that is based on perceptual non-linearity of human vision adapted at different light levels to spatial frequencies. The imaging device also has a data converter that is…
Projector and method for increasing projected light intensity
Granted: February 4, 2025
Patent Number:
12216392
A projector includes a light source, an integrating rod, an image panel, a beam shaper, and an actuator mechanically connected to the beam shaper. The image panel is configured to display an image at a displayed aspect ratio. The beam shaper includes multiple prisms shaped and oriented such that when the beam shaper intersects an optical path of the illumination between the integrating rod and the image panel, the illumination transmitted by the beam shaper is collinear with the…
Speaker
Granted: January 28, 2025
Patent Number:
D1059333
Contactless power transfer system and method for controlling the same
Granted: January 28, 2025
Patent Number:
12212151
A contactless power transfer system is provided. The contactless power transfer system includes a first power exchanger coil configured to exchange power. The contactless power transfer system also includes a first power converter operatively coupled to the first power exchanger coil and configured to convert a direct current power to an alternating current power at a system frequency. The contactless power transfer system further includes a controller configured to control an operating…
