Abstract: A light emitting diode device, an array substrate and a display device. The light emitting diode device includes a substrate, a first sub-light emitting unit disposed on the substrate, and a second sub-light emitting unit disposed on a side of the first sub-light emitting unit away from the substrate. The first sub-light emitting unit includes a first semiconductor layer of a first conductivity type, a first light emitting layer, and a second semiconductor layer of a second conductivity type which are each disposed successively in a direction away from the substrate. The second sub-light emitting unit includes the second semiconductor layer, a second light emitting layer, and a third semiconductor layer of the first conductivity type. Each layer is disposed successively in the direction away from the substrate. The first conductivity type is different from the second conductivity type.

Abstract: In accordance with the present disclosure, an adaptive noise cancellation system may include a controller. The controller may be configured to determine a degree of convergence of an adaptive coefficient control block for controlling an adaptive response of the adaptive noise cancellation system. The controller may enable adaptation of the adaptive coefficient control block if the degree of convergence of the adaptive response is below a particular threshold and disable adaptation of the adaptive coefficient control block if the degree of convergence of the adaptive response is above a particular threshold, such that when the adaptive noise cancellation system is adequately converged, the adaptive noise cancellation system may conserve power by disabling one or more of its components.

Abstract: The disclosure relates to an Internet of Vehicles technology, and particularly to a driving behavior correction method and device based on the Internet of Vehicles. The driving behavior correction method based on the Internet of Vehicles comprises: a first information acquirer acquiring information about a vehicle in real time, and a second information acquirer acquiring vehicle condition information about the other surrounding vehicles on a travelling road in real time; and a determination unit arranged in the vehicle or at a cloud determining in real time, according to the information about the vehicle and the vehicle condition information about the surrounding vehicles, whether a driving behavior of the vehicle is dangerous, and if so, issuing a driving behavior correction prompt to the driver of the vehicle, which can intervene in and correct the driving behavior of the driver in real time.

Abstract: The handling of disturbances to audio signals may be improved with an adaptive noise cancellation (ANC) system that performs frequency-domain adaption. The ANC systems may be configured to determine if a disturbance is present at a first frequency in the second input signal received from the reference microphone. The ANC systems may update an algorithm of an adaptive filter based, at least in part, on the first input signal, the second input signal, and a feedback signal that is based on an output of the adaptive filter by changing parameters of the algorithm such that the adaptive filter adapts around the first frequency differently than other frequencies when the disturbance is present.

Abstract: The overall performance of an ANC system may be improved by configuring the ANC system to perform adaption in the frequency domain. The ANC systems may be configured to update an algorithm of an adaptive filter based, at least in part, on the first input signal, the second input signal, and a feedback signal that is based on an output of the adaptive filter. Updating may include changing parameters of the algorithm based on a SDR based, at least in part, on the first input signal. Updating may also include normalizing a step size and processing at least full band information for the input signal in a frequency domain to generate coefficient values for the algorithm. Updating may also include applying a frequency domain magnitude constraint on adaptive filter coefficients.

Abstract: Provided are a method and device for the rear end collision protection of a vehicle. The method comprises: in a driving process of a current vehicle, detecting a rear vehicle distance by a radar; judging whether the rear vehicle distance is less than a distance threshold, and if yes, calculating a collision time according to the approaching speed of the rear vehicle and the rear vehicle distance; and judging whether the collision time is less than a time threshold, and if yes, initiating an airbag disposed at a rear bumper of the current vehicle, wherein after expanded, the airbag forms a long-strip-shaped inflatable bladder at the outside of the rear bumper of the current vehicle.

Abstract: A manufacturing method of a light emitting diode device and a light emitting diode device are provided. The manufacturing method of the light emitting diode device includes: forming a light emitting lamination layer on a base substrate, the light emitting lamination layer including a first semiconductor layer, a first light emitting layer, a second semiconductor layer, a second light emitting layer and a third semiconductor layer sequentially formed on the base substrate; dividing the light emitting lamination layer to form a plurality of light emitting units spaced from each other, each light emitting unit including a first area and a second area spaced from each other; and removing the third semiconductor layer and the second light emitting layer in the first area to form a first sub light emitting unit, and the second area being used for forming a second sub light emitting unit.

Abstract: An intelligent container is provided. The container includes a body; and a light-emitting device disposed on the body. The light-emitting device includes at least one light-emitting unit, the light-emitting unit being configured to emit light towards the inside of the body and the outside of the body. The light-emitting unit of the intelligent container can emit light bidirectionally to provide a light source for a plant therein in the growth process of the plant, and simultaneously provide an illumination to the outside.

Abstract: A controller for an adaptive noise canceling (ANC) system simplifies the design of a stable control response by making the ANC gain of the system independent of a secondary path extending from a transducer of the ANC system to a sensor of the ANC system that measures the ambient noise. The controller includes a fixed filter having a predetermined fixed response, and a variable filter coupled together. The variable response filter compensates for variations of a transfer function of a secondary path that includes at least a path from a transducer of the ANC system to a sensor of the ANC system, so that the ANC gain is independent of the variations in the transfer function of the secondary path.

Abstract: The present invention provides a traffic intersection driving assistance method and system, wherein the method comprises: acquiring driving information about vehicles within a current intersection area by way of vehicle interconnection; obtaining vehicle flows in various driving directions according to the driving information; determining whether a difference in between vehicle flows in various driving directions exceeds a pre-set threshold, and if so, changing a driving direction of a variable lane; and sending information about the distribution of driving directions of current lanes to the vehicles within the current intersection area. The object of the present invention is to avoid traffic congestion by adjusting a variable lane in time.

Abstract: A personal audio device including multiple output transducers for reproducing different frequency bands of a source audio signal, includes an adaptive noise canceling (ANC) circuit that adaptively generates an anti-noise signal for each of the transducers from at least one microphone signal that measures the ambient audio to generate anti-noise signals. The anti-noise signals are generated by separate adaptive filters such that the anti-noise signals cause substantial cancelation of the ambient audio at their corresponding transducers. The use of separate adaptive filters provides low-latency operation, since a crossover is not needed to split the anti-noise into the appropriate frequency bands. The adaptive filters can be implemented or biased to generate anti-noise only in the frequency band corresponding to the particular adaptive filter. The anti-noise signals are combined with source audio of the appropriate frequency band to provide outputs for the corresponding transducers.

Abstract: Methods and systems for improved attack context data logging are provided. According to one embodiment, prior to a logging event being triggered (i) it is determined by a network security device whether a received packet is potentially associated with a threat or undesired activity by analyzing the packet; (ii) when the determination is negative, the packet is stored within a circular buffer; and (iii) when the determination is affirmative, (a) the logging event is triggered, (b) pre-attack context information regarding the threat is captured by extracting information from packets within the circular buffer and (c) the pre-attack context information is stored within a log. After the logging event has been triggered and until information regarding a predefined quantity of packets has been logged, post-attack context information regarding the threat is captured by extracting information from subsequently received packets and the post-attack context information is stored within the log.

Abstract: A personal audio device, such as a wireless telephone, includes an adaptive noise canceling (ANC) circuit that adaptively generates an anti-noise signal from an output of a microphone that measures ambient audio. The anti-noise signal is combined with source audio to provide an output for a speaker. The anti-noise signal causes cancellation of ambient audio sounds that appear at the microphone. A processing circuit estimates a level of background noise from the microphone output and sets a power conservation mode of the personal audio device in response to detecting that the background noise level is lower than a predetermined threshold.

Abstract: A personal audio device, such as a wireless telephone, includes an adaptive noise canceling (ANC) circuit that adaptively generates an anti-noise signal from a reference microphone signal and injects the anti-noise signal into the speaker or other transducer output to cause cancellation of ambient audio sounds. An error microphone is also provided proximate to the speaker to provide an error signal indicative of the effectiveness of the noise cancellation. A secondary path estimating adaptive filter is used to estimate the electro-acoustical path from the noise canceling circuit through the transducer so that source audio can be removed from the error signal. A level of the source audio with respect to the ambient audio is determined to determine whether the system may generate erroneous anti-noise and/or become unstable.

Abstract: A modular node for an optical communication network includes one or more transceiver modules of a plurality of transceiver modules, and a node core including a plurality of electrical connectors to electrically join up to the plurality of transceiver modules to the node core. At least some of the transceiver modules has an optical transceiver configured to emit optical beams carrying data and without artificial confinement, and detect optical beams emitted and without artificial confinement. The up to the plurality of transceiver modules electrically joined to the node core are spatially separated to provide configurable coverage for optical communication based on their number and placement. And the node core further includes switching circuitry configured to connect the one or more transceiver modules to implement a redistribution point or a communication endpoint in the optical communication network.

Abstract: An adaptive noise canceling (ANC) circuit adaptively generates an anti-noise signal from a reference microphone signal that is injected into the speaker or other transducer output to cause cancellation of ambient audio sounds. An error microphone proximate the speaker provides an error signal. A secondary path estimating adaptive filter estimates the electro-acoustical path from the noise canceling circuit through the transducer so that source audio can be removed from the error signal. Tones in the source audio, such as remote ringtones, present in downlink audio during initiation of a telephone call, are detected by a tone detector using accumulated tone persistence and non-silence hangover counting, and adaptation of the secondary path estimating adaptive filter is halted to prevent adapting to the tones. Adaptation of the adaptive filters is then sequenced so any disruption of the secondary path adaptive filter response is removed before allowing the anti-noise generating filter to adapt.

Abstract: Methods and systems for improved attack context data logging are provided. According to one embodiment, prior to a logging event being triggered (i) it is determined by a network security device whether a received packet is potentially associated with a threat or undesired activity by analyzing the packet; (ii) when the determination is negative, the packet is stored within a circular buffer; and (iii) when the determination is affirmative, (a) the logging event is triggered, (b) pre-attack context information regarding the threat is captured by extracting information from packets within the circular buffer and (c) the pre-attack context information is stored within a log. After the logging event has been triggered and until information regarding a predefined quantity of packets has been logged, post-attack context information regarding the threat is captured by extracting information from subsequently received packets and the post-attack context information is stored within the log.

Abstract: Methods and systems for improved attack context data logging are provided. According to one embodiment, configuration information is received from an administrator of a network security device. The configuration information includes information indicative of a quantity of packets to be captured for post attack analysis. Responsive to receipt of the configuration information, a size of a circular buffer is configured based thereon. Multiple packets directed to a network protected by the network security device are received from an external network. The received packets are temporarily buffered within the circular buffer. An analysis is performed to determine whether one of the received packets is potentially associated with a threat or undesired activity (“trigger packet”).

Abstract: A processing circuit may include: (i) an adaptive filter having a response that generates an anti-noise signal from a reference microphone signal, wherein the response is shaped in conformity with the reference microphone signal and a playback corrected error, and wherein the playback corrected error is based on a difference between an error microphone signal and a secondary path estimate; (ii) a secondary path estimate filter configured to model an electro-acoustic path of a source audio signal and having a response that generates a secondary path estimate from the source audio signal; (iii) a secondary coefficient control block that shapes the response of the secondary path estimate filter in conformity with the source audio signal and the playback corrected error by adapting the response of the secondary path estimate filter to minimize the playback corrected error; and (iv) a noise injection portion for injecting a noise signal into the source audio signal, wherein the noise signal is shaped based on the

Abstract: A personal audio device, such as a wireless telephone, includes an adaptive noise canceling (ANC) circuit that adaptively generates an anti-noise signal from a reference microphone signal and injects the anti-noise signal into the speaker or other transducer output to cause cancellation of ambient audio sounds. An error microphone is also provided proximate the speaker to measure the ambient sounds and transducer output near the transducer, thus providing an indication of the effectiveness of the noise canceling. A processing circuit uses the reference and/or error microphone, optionally along with a microphone provided for capturing near-end speech, to determine whether the ANC circuit is incorrectly adapting or may incorrectly adapt to the instant acoustic environment and/or whether the anti-noise signal may be incorrect and/or disruptive and then take action in the processing circuit to prevent or remedy such conditions.