Abstract: This application discloses a method: determining, based on a length of to-be-encoded information bits and a code rate, a code length N after encoding; determining, based on N, a minimum segment code length, and a maximum segment code length, a reserved segment quantity of each type of segments in segments of b?a+1 types of segment code lengths and a reserved code length corresponding to N, where the minimum segment code length is 2{circumflex over (?)}a, and the maximum segment code length is 2{circumflex over (?)}b; determining a segment quantity of each type of segments based on N, the reserved code length, a segment code length of each type of segments, and the reserved segment quantity of each type of segments, where N corresponds to S segments, and a segment code length of an ith segment in the S segments is greater than or equal to a segment code length of an (i+1)th segment in the S segments.

Abstract: A video transparent playing processing method, an intelligent television, and a storage medium, the method including: creating a video layer UI, processing image data; processing the image data to separate background colors and theme colors, modifying the background color to a transparent color value, and only keep the theme color; after data of each frame is processed, only the theme content is displayed when the video is played, and the original UI of the TV is displayed transparently through the background. The embodiments strip the video background and the video subject part when playing the video, and modifies the video background color to be transparent, while retaining the main part of the video, it is realized the effect that only the video theme is displayed, the background of the video becomes transparent, and the original UI of the TV is directly displayed.

Abstract: An audio data transmission method includes encapsulating, based on a physical layer frame header, a protocol data unit (PDU) including audio data, to obtain an audio data packet, where the physical layer frame header is modulated using a first digital modulation scheme, the PDU is modulated using a second digital modulation scheme, a value of a modulation rate of the first digital modulation scheme is equal to a value of a data transmission rate, and a value of a modulation rate of the second digital modulation scheme is less than the value of the data transmission rate, and sending the audio data packet on a BLUETOOTH low energy (BLE) physical channel at the data transmission rate.

Abstract: This application relates generally to parallel computer processing, and more specifically, to parallel processing within a rendering engine via parallel scene graphs. One or more parallel scene graphs or parallel data graphs may be provided to a rendering engine. The rendering engine may identify dependencies within the parallel data structures and process, in parallel, one or more aspects of a the parallel data structure.

Abstract: This application relates generally to parallel computer processing, and more specifically, to parallel processing within a rendering engine via parallel scene graphs. One or more parallel scene graphs or parallel data graphs may be provided to a rendering engine. The rendering engine may identify dependencies within the parallel data structures and process, in parallel, one or more aspects of a the parallel data structure.

Abstract: A system and method for an NFC card for use in asynchronous NFC card emulation mode transmission. The method comprises estimating carrier frequency offset between a carrier frequency of a NFC reader and a carrier frequency of the NFC card, adjusting digital baseband sampling of the baseband sample output at the NFC card emulation mode transmitter based on the estimated carrier frequency offset to obtain an adjusted baseband sample output and modulating a RF transmitter in the NFC card emulation mode transmitter based on the adjusted baseband sample output.

Abstract: Methods and systems for generating three-dimensional (3D) images, 3D light field (LF) cameras and 3D photographs are provided. Light representing a scene is directed through a lens module coupled to an imaging sensor. The lens module includes: a surface having a slit-shaped aperture and a cylindrical lens array positioned along an optical axis of the imaging sensor. A longitudinal direction of the slit-shaped aperture is arranged orthogonal to a cylindrical axis of the cylindrical lens array. The light directed through the lens module is captured by the imaging sensor to form a 3D LF image. A 3D photograph includes a 3D LF printed image of the scene and a cylindrical lens array disposed on the printed image, such that the combination of 3D LF printed image and the cylindrical lens array forms a 3D stereoscopic image.

Abstract: Embodiments of the invention provide a system and method for direct RF sampling a Near Field Communication (NFC) receiver at a rate higher than the carrier frequency by reducing and shifting requirements at a front end analog module to a digital module.

Abstract: A moving-coil loudspeak includes a vibrating diaphragm, a suspension, a voice coil, a magnetic circuit, and a support. The suspension includes a surround and a first spider. One side of the surround is connected to an outer surface of the vibrating diaphragm. The first spider vertically stands below a connection between the surround and the vibrating diaphragm, and one side of the first spider is connected to an inner surface of the vibrating diaphragm. The voice coil is located below the center of the vibrating diaphragm. The magnetic circuit is located below the voice coil, where a coil on the voice coil is disposed at a central position of a magnetic gap. After the voice coil is powered on, a generated magnetic induction force drives the voice coil to vibrate and produce a sound by using the vibrating diaphragm. The support supports the magnetic circuit.

Abstract: A system and method for an NFC card for use in asynchronous NFC card emulation mode transmission. The method comprises estimating carrier frequency offset between a carrier frequency of a NFC reader and a carrier frequency of the NFC card, adjusting digital baseband sampling of the baseband sample output at the NFC card emulation mode transmitter based on the estimated carrier frequency offset to obtain an adjusted baseband sample output and modulating a RF transmitter in the NFC card emulation mode transmitter based on the adjusted baseband sample output.

Abstract: Embodiments of the invention provide a system and method for direct RF sampling a Near Field Communication (NFC) receiver at a rate higher than the carrier frequency by reducing and shifting requirements at a front end analog module to a digital module.

Abstract: Techniques are disclosed for synthesizing depth of field effects in a digital image using ray tracing approximation. For each target pixel in the image, an aperture-shaped kernel is centered about a reference pixel. A cone of rays is traced through the aperture toward the image scene. The trajectory of the rays and the intersections between the rays and objects in the scene are approximated for a given scene depth, focal depth and aperture shape. The color of the pixel lying at the intersection, which may be offset from the target pixel, is sampled. This sampling process is repeated for several apertures bounding the target pixel, where each aperture is centered about a different reference pixel. The resulting color of the target pixel is acquired by integrating the colors of the pixels at each of the resulting intersections.

Abstract: Methods and systems for generating three-dimensional (3D) images, 3D light field (LF) cameras and 3D photographs are provided. Light representing a scene is directed through a lens module coupled to an imaging sensor. The lens module includes: a surface having a slit-shaped aperture and a cylindrical lens array positioned along an optical axis of the imaging sensor. A longitudinal direction of the slit-shaped aperture is arranged orthogonal to a cylindrical axis of the cylindrical lens array. The light directed through the lens module is captured by the imaging sensor to form a 3D LF image. A 3D photograph includes a 3D LF printed image of the scene and a cylindrical lens array disposed on the printed image, such that the combination of 3D LF printed image and the cylindrical lens array forms a 3D stereoscopic image.

Abstract: Described is systems and methods for determining the depth of pixels captured in a plenoptic image. The systems and methods may provide a plurality of views of each pixel location in the plenoptic image. One way of providing the plurality of views is to obtaining pixel intensities from the views for each pixel location in the plenoptic image. A variance can then be calculated of the distribution of pixel intensities for each pixel position. If the variance is below a predetermined threshold, the systems may mask out at least one depth plane and then recalculate the variance in the distribution of pixel intensities to determine if the variance is below the threshold.

Abstract: Techniques are disclosed for synthesizing depth of field effects in a digital image using ray tracing approximation. For each target pixel in the image, an aperture-shaped kernel is centered about a reference pixel. A cone of rays is traced through the aperture toward the image scene. The trajectory of the rays and the intersections between the rays and objects in the scene are approximated for a given scene depth, focal depth and aperture shape. The color of the pixel lying at the intersection, which may be offset from the target pixel, is sampled. This sampling process is repeated for several apertures bounding the target pixel, where each aperture is centered about a different reference pixel. The resulting color of the target pixel is acquired by integrating the colors of the pixels at each of the resulting intersections.

Abstract: Described is systems and methods for determining the depth of pixels captured in a plenoptic image. The systems and methods may provide a plurality of views of each pixel location in the plenoptic image. One way of providing the plurality of views is to obtaining pixel intensities from the views for each pixel location in the plenoptic image. A variance can then be calculated of the distribution of pixel intensities for each pixel position. If the variance is below a predetermined threshold, the systems may mask out at least one depth plane and then recalculate the variance in the distribution of pixel intensities to determine if the variance is below the threshold.

Abstract: Circuits, architectures, methods, algorithms, software, and systems for increasing reliability of data communications using time diversity coding are disclosed. An association circuit is configured to associate a first reliability factor with a first copy of the communicated data and a second reliability factor with a second copy of the communicated data, wherein the first reliability factor is different from the second reliability factor and has a value that is a predetermined function of a known characteristic of the data communications channel at a time that the communicated data passed through the channel. A decoder is configured to recover a reliable value for the communicated data from the first copy, second copy, first reliability factor, and second reliability factor.

Abstract: Methods, software, receivers and systems for communicating information over a cyclostationary channel. The method generally includes interleaving sections of a control sequence with bits of the information. The software and receivers are generally configured to implement one or more aspects of the methods disclosed herein, and the systems generally include those that embody the inventive receivers disclosed herein. The present invention is particularly useful in powerline channels, where certain parameters (such as noise) have time-dependent or periodic variations in value. By distributing the control sequence, the incidence of carrier recovery is reduced, the likelihood of successful packet or frame transmissions is increased, and data may be more reliably communicated.