Abstract: Provided is a gas switch triggered by an optical pulse introduced by an optical fiber, which solves the problem of the existing electrically-triggered gas switch and laser-triggered gas having a complicated trigger system, being insufficiently reliable and having a higher cost due to the pulse amplitude/laser beam energy having higher requirements. The gas switch triggered by an optical pulse introduced by an optical fiber includes at least one trigger gap and one self-breakdown gap; each trigger gap is connected in parallel to a photoconductive switch, and an optical fiber is correspondingly provided for introducing an optical pulse for triggering.

Abstract: Provided is a gas switch triggered by an optical pulse introduced by an optical fiber, which solves the problem of the existing electrically-triggered gas switch and laser-triggered gas having a complicated trigger system, being insufficiently reliable and having a higher cost due to the pulse amplitude/laser beam energy having higher requirements. The gas switch triggered by an optical pulse introduced by an optical fiber includes at least one trigger gap and one self-breakdown gap; each trigger gap is connected in parallel to a photoconductive switch, and an optical fiber is correspondingly provided for introducing an optical pulse for triggering.

Abstract: Various aspects of the present disclosure provide for detecting a condition indicating that a graphics processing unit (GPU) is in an unstable state while receiving GPU commands in a first wireless display mode, transmitting a GPU refresh request message and switching from the first wireless display mode to a second wireless display mode in response to detecting the condition, receiving data sufficient to reset the GPU from the unstable state to a stable state at a random access point (RAP) in a trace of the GPU commands, and switching from the second wireless display mode to the first wireless display mode after receiving the data. The GPU refresh request message may include information requesting the data sufficient to reset the GPU at an upcoming RAP in the trace of the GPU commands. Various other aspects are also provided throughout the present disclosure.

Abstract: Aspects of the present disclosure relate to graphics domain transmission methods that utilize an adaptive compression pipeline to achieve low latency screen mirroring between a source device and a sink device. A source device captures a plurality of graphics domain frames, each of the graphics domain frames including one or more graphics command tokens. The source device utilizes an adaptive compression pipeline to compress the graphics domain frames based on one or more characteristics of the frames, and the adaptive compression pipeline is configured to perform at least one of scalable texture streaming, frame-based prediction, frame dropping, or data compression. The source device transmits the compressed frames to a sink device, and displays a rendered image of the graphics domain frames in time synchronization with a corresponding rendered image of the compressed frames displayed at the sink device.

Abstract: The noise suppression method of individual active noise reduction system comprises the steps that: (1) initial noise digital signals are received and converted to serve as input signals of a BP neural network; (2) the input signals are processed to generate secondary digital signals; (3) the secondary digital signals are output to a loudspeaker and secondary noise is generated; (4) remained noise digital signals obtained by overlapping the initial noise and the secondary noise are received; whether remained noise digital signals is continuously constant for the set times is judged; if yes, the secondary digital signals are kept outputting; (5) if not, BP neural network parameters are optimized and adjusted with the amplitude of the remained noise digital signals being minimum as the optimality principle; remained noise digital signals of previous step are served as new input signals and the step (2) is executed again.

Abstract: In one example, a method for transmitting video data includes capturing a plurality of sets of graphical command tokens respectively renderable into a plurality of frames of video data; and responsive to determining that a length of a current set of graphical command tokens of the plurality of sets of graphical command tokens is the same as a length of a previous set of the plurality of sets of graphical command tokens, outputting, by a source device and to a sink device, a compressed version of the current set of graphical command tokens.

Abstract: In one example, a method for processing video data includes receiving, by a sink device and from a source device, one or more graphical command tokens that are executable to render original video data; modifying, by the sink device, the graphical command tokens to generate modified graphical command tokens that are executable to render modified video data different from the original video data; and outputting, for presentation at a display operatively connected to the sink device, the modified video data.

Abstract: The noise suppression method of individual active noise reduction system comprises the steps that: (1) initial noise digital signals are received and converted to serve as input signals of a BP neural network; (2) the input signals are processed to generate secondary digital signals; (3) the secondary digital signals are output to a loudspeaker and secondary noise is generated; (4) remained noise digital signals obtained by overlapping the initial noise and the secondary noise are received; whether remained noise digital signals is continuously constant for the set times is judged; if yes, the secondary digital signals are kept outputting; (5) if not, BP neural network parameters are optimized and adjusted with the amplitude of the remained noise digital signals being minimum as the optimality principle; remained noise digital signals of previous step are served as new input signals and the step (2) is executed again.

Abstract: In one example, a method for transmitting video data includes outputting, by a source device to a sink device, graphical commands and one or more texture elements that are renderable into video data. In this example, outputting a particular texture element of the one or more texture elements includes streaming, by the source device and to the sink device, a plurality of stages that each respectively correspond to a respective subset of pixels of the particular texture element.

Abstract: Various aspects of the present disclosure provide for detecting a condition indicating that a graphics processing unit (GPU) is in an unstable state while receiving GPU commands in a first wireless display mode, transmitting a GPU refresh request message and switching from the first wireless display mode to a second wireless display mode in response to detecting the condition, receiving data sufficient to reset the GPU from the unstable state to a stable state at a random access point (RAP) in a trace of the GPU commands, and switching from the second wireless display mode to the first wireless display mode after receiving the data. The GPU refresh request message may include information requesting the data sufficient to reset the GPU at an upcoming RAP in the trace of the GPU commands. Various other aspects are also provided throughout the present disclosure.

Abstract: In one example, a method for processing video data includes receiving, by a sink device and from a source device, one or more graphical command tokens that are executable to render original video data; modifying, by the sink device, the graphical command tokens to generate modified graphical command tokens that are executable to render modified video data different from the original video data; and outputting, for presentation at a display operatively connected to the sink device, the modified video data.

Abstract: Aspects of the present disclosure relate to graphics domain transmission methods that utilize an adaptive compression pipeline to achieve low latency screen mirroring between a source device and a sink device. A source device captures a plurality of graphics domain frames, each of the graphics domain frames including one or more graphics command tokens. The source device utilizes an adaptive compression pipeline to compress the graphics domain frames based on one or more characteristics of the frames, and the adaptive compression pipeline is configured to perform at least one of scalable texture streaming, frame-based prediction, frame dropping, or data compression. The source device transmits the compressed frames to a sink device, and displays a rendered image of the graphics domain frames in time synchronization with a corresponding rendered image of the compressed frames displayed at the sink device.

Abstract: Source devices are adapted to facilitate video data streaming to a sink device. According to one example, a source device can capture a plurality of frames of video data, each frame including a set of graphical command tokens. Responsive to a delay between the source device and a sink device, the source device can select one or more frames of the plurality of frames to be dropped. The source device may transmit the plurality of frames of video data to a sink device, without transmitting the one or more frames selected to be dropped. Other aspects, embodiments, and features are also included.

Abstract: In one example, a method includes sending a request to a wireless docking host to select one or more peripheral functions available via the wireless docking host in accordance with authentication and association information associated with a docking session with the wireless docking host. The method further includes sending a request to the wireless docking host to establish one or more payload connections with the wireless docking host, wherein the one or more payload connections are configured to communicate data via the wireless docking host for the selected one or more peripheral functions.

Abstract: Source devices are adapted to facilitate video data streaming to a sink device. According to one example, a source device can capture a plurality of frames of video data, each frame including a set of graphical command tokens. Responsive to a delay between the source device and a sink device, the source device can select one or more frames of the plurality of frames to be dropped. The source device may transmit the plurality of frames of video data to a sink device, without transmitting the one or more frames selected to be dropped. Other aspects, embodiments, and features are also included.

Abstract: In one example, a method for transmitting video data includes capturing a plurality of sets of graphical command tokens respectively renderable into a plurality of frames of video data; and responsive to determining that a length of a current set of graphical command tokens of the plurality of sets of graphical command tokens is the same as a length of a previous set of the plurality of sets of graphical command tokens, outputting, by a source device and to a sink device, a compressed version of the current set of graphical command tokens.

Abstract: In one example, a method for transmitting video data includes outputting, by a source device to a sink device, graphical commands and one or more texture elements that are renderable into video data. In this example, outputting a particular texture element of the one or more texture elements includes streaming, by the source device and to the sink device, a plurality of stages that each respectively correspond to a respective subset of pixels of the particular texture element.

Abstract: Various aspects of the present disclosure provide for a first device that may establish a wireless docking session with a second device. The first device may determine whether a profile of a second device matches a profile stored in the first device. When such a match exists, the first device may export data to the second device in a format associated with the profile of the second device. When such a match does not exist, the first device may provide an error message or export data to the second device in a format associated with a default profile of the first device. The profile may indicate an operating system, a peripheral component, a display size, a display resolution, a touch screen-capability, a font type, a user setting, a power source or availability, a hardware component, or a software module. Additional aspects, embodiments, and features are also provided herein.

Abstract: This disclosure describes a method of transmitting media data from a source device, the method comprising establishing, with the source device, a first communication session between the source device and a sink device comprising a vehicle head unit, wherein the first communication session conforms to a communication protocol. The method also comprises discovering, with the source device and by the first communication session, the sink device. The method further comprises, during operation of the first communication session, establishing with the source device a second communication session between the source device and the sink device, wherein the second communication session conforms to a wireless display protocol. The method also comprises transmitting, using the second communication session, media data from the source device to the sink device for output to an interface of the sink device.

Abstract: In one example, a method includes sending a request to a wireless docking host to select one or more peripheral functions available via the wireless docking host in accordance with authentication and association information associated with a docking session with the wireless docking host. The method further includes sending a request to the wireless docking host to establish one or more payload connections with the wireless docking host, wherein the one or more payload connections are configured to communicate data via the wireless docking host for the selected one or more peripheral functions.