Abstract: An automatic system updating apparatus and method are provided, which identifies the event of system update and collects the updating results to the allowlist. The apparatus determines whether at least one pending event intercepted from a file system belongs to a system update event based on a plurality of update rules. The apparatus executes the at least one pending event and generates at least one executable file corresponding to the at least one pending event in response to the at least one pending event belonging to the system update event, and the new generated at least one executable file is not included in an allowlist. The apparatus adds the at least one executable file corresponding to the at least one pending event to the allowlist based on a security setting.

Abstract: A color electrophoretic display and a display method thereof are provided. The color electrophoretic display comprises an achromatic color particle and a plurality of chromatic color particles. The display method of the color electrophoretic display comprises turning on a stylus mode, providing an assigned stylus color, sensing a movement of the stylus to output a black trace, and transferring the black trace into a color trace of the assigned stylus color when the stylus movement stops. The black trace is shown when the achromatic color particle and the chromatic color particles move toward a top electrode, and a refresh time of the color of the black trace is smaller than 50 ms. The color of the assigned stylus color and the color of the black trace have brightness difference and at least one of the hue differences and the saturation differences.

Abstract: This application discloses a stroboscopic image processing method and apparatus, an electronic device, and a readable storage medium. The method includes: obtaining a first image photographed under a stroboscopic light source, where the first image is a raw RAW domain image; performing high-frequency image and low-frequency image separation on the first image, to obtain a first high-frequency image and a first low-frequency image; determining a target mask based on the first low-frequency image, where a mask value in the target mask is negatively correlated with brightness and banding strength of a region corresponding to the mask value in the first low-frequency image; filtering banding in the first low-frequency image based on the target mask, to obtain a second low-frequency image; and superposing the second low-frequency image and the first high-frequency image, to obtain an output image.

Abstract: An isolated power supply chip based on a symmetrical Class-D oscillator with dead zone control is provided, including: a transmitting stage oscillator circuit connected to a power supply and a ground, the oscillator circuit is configured to invert an input DC voltage into differential high-frequency oscillation power signals and input the signals to a primary coil of a transformer; a rectifier circuit connected to a secondary coil of the transformer and configured to rectify the signals to output a DC voltage signal; and a feedback control circuit configured to feed back the DC voltage signal to the oscillator circuit; the oscillator circuit comprises: a dead zone control module, and a NMOS transistor group and a PMOS transistor group connected to the dead zone control module that are symmetrically arranged, the dead zone control module is configured to control the transistor groups to eliminate a short circuit current.

Abstract: A photovoltaic system, an inverter starting method and a photovoltaic energy storage system are provided. The photovoltaic system includes: a shutdown device, a controller and an inverter. The inverter includes a DC-DC circuit and an inverter circuit; the DC-DC circuit includes at least two Boost circuits; an input terminal of the shutdown device is connected to a photovoltaic panel, and an output terminal of the shutdown device is connected to an input terminal of the DC-DC circuit; an output terminal of the DC-DC circuit is connected to an input terminal of the inverter circuit. The method includes: controlling the inverter to perform a start-up process in multiple stages in a case that a start-up time of the inverter is greater than a single turned-on period of the shutdown device, where the shutdown device is turned on once in each of the multiple stages.

Abstract: A circuit, including: a photodetector including a first readout terminal and a second readout terminal different than the first readout terminal; a first readout circuit coupled with the first readout terminal and configured to output a first readout voltage; a second readout circuit coupled with the second readout terminal and configured to output a second readout voltage; and a common-mode analog-to-digital converter (ADC) including: a first input terminal coupled with a first voltage source; a second input terminal coupled with a common-mode generator, the common-mode generator configured to receive the first readout voltage and the second readout voltage, and to generate a common-mode voltage between the first and second readout voltages; and a first output terminal configured to output a first output signal corresponding to a magnitude of a current generated by the photodetector.

Abstract: A method for tuning a power characteristic of an optical frequency comb includes controlling a modulating light source according to a plurality of modulation parameters to generate an optical frequency comb including a plurality of optical tones. Additionally, at least one of the plurality of modulation parameters is changed until a total power of the plurality of optical tones is greater than or equal to a minimum threshold value. Furthermore, at least one of the plurality of modulation parameters are changed until respective powers of each of the plurality of optical tones are within a predetermined proximity to respective target powers of each of the plurality of optical tones.

Abstract: A digital pre-distortion circuit includes a memoryless non-linear operating circuit, an intermodulation shaping filter circuit, and a signal combination circuit. The memoryless non-linear operating circuit performs a memoryless non-linear operation upon a transmission signal to generate a first signal, wherein the first signal is an output simulation signal of a radio frequency (RF) power amplifier under the memoryless effect, and the first signal includes a signal component corresponding to the transmission signal and a signal component corresponding to an intermodulation signal of the transmission signal. The intermodulation shaping filter circuit filters the first signal to generate a second signal, wherein the second signal simulates an intermodulation signal generated by the RF power amplifier in response to the transmission signal under a memory effect. The signal combination circuit combines the transmission signal and the second signal to generate a pre-distortion signal.

Abstract: The disclosure discloses an image display method, an image display device and a display system. The method includes: according to a image to be displayed, determining a maximum brightness value of pixel points in a panel partition to obtain a backlight brightness value corresponding to a backlight partition; acquiring a light diffusion curve of the backlight of the backlight partition incident on the panel partition corresponding to the backlight partition; calculating a compensation ratio of a target pixel to the light diffusion curve, the compensation ratio is a ratio of the maximum brightness value to an actual brightness value; calculating a pixel compensation value of the target pixel according to the image to be displayed and the compensation ratio; adjusting a pixel value of the target pixel point according to the pixel compensation value.

Abstract: A photodetecting device is provided. The photodetecting device includes a silicon substrate, a germanium absorption region, and a plurality of microstructures. The silicon substrate includes a first surface and a second surface. The germanium absorption region is formed proximal to the first surface of the silicon substrate, and the germanium absorption region is configured to absorb photons and to generate photo-carriers. The plurality of microstructures are formed over the second surface of the silicon substrate, and the plurality of microstructures are configured to direct an optical signal towards the germanium absorption region. A system including an optical transmitter and an optical receiver is also provided.

Abstract: A system for detecting hardware Trojans in a computerized device includes a digital circuit having switching components operating pursuant to at least one clock frequency and positioned within an interrogation range of an incident carrier wave. A modulated backscatter response is reflected from the digital circuit upon arrival of the incident carrier wave in the presence of the switching operations. A detection device is positioned to receive the modulated backscatter response. A computer connected to the detection device identifies harmonics of a respective clock frequency of the digital circuit from the backscatter response and identifies characteristics of the harmonics indicating a presence or an absence of a hardware Trojan connected to the digital circuit.

Abstract: A radio frequency (RF) beam transmission component having optical inputs and electrical outputs may include a wavelength selective switch (WSS) that has a plurality of optical WSS outputs. Each optical WSS output may be configured to transmit one or more wavelengths of the incoming optical signals. The RF beam transmission component may include a plurality of photodetectors (PD), each photodetector having an optical PD input coupled to one or more of said plurality of optical WSS outputs and a corresponding electrical output of a plurality of PD electrical outputs. The RF beam transmission component may further include a lens that has a plurality of electrical inputs and each electrical input may be electrically coupled to at least one of the plurality of electrical PD outputs. The lens may further have a plurality of electrical lens output ports.

Abstract: An electronic device including a substrate and a plurality of control units is provided. The plurality of control units are disposed on the substrate, wherein each of the plurality of control units includes a transistor, an insulating layer, a first conductive layer, and a second conductive layer. The transistor includes a first electrode. The insulating layer is disposed on the transistor and has a through hole exposing the first electrode. The first conductive layer is disposed on the transistor, wherein a portion of the first conductive layer is overlapped with the insulating layer, and another portion of the first conductive layer is electrically connected to the first electrode via the through hole. The second conductive layer is at least partially overlapped with the first conductive layer and in direct contact with the first conductive layer. The electronic device provided by the disclosure has improved transmittance and yield.

Abstract: A communication device includes a transceiver and a control circuit. The control circuit determines whether to transmit a second MKPDU in advance according to a member identifier of a peer device carried by a received first MKPDU and one or more lists maintained by the communication device. When the member identifier of the peer device is not recorded in the one or more lists, the control circuit determines to transmit the second MKPDU in advance. When the control circuit determines to transmit the second MKPDU in advance, the control circuit generates the second MKPDU, encodes the second MKPDU to generate a frame, and transmits a signal carrying the frame through the transceiver, wherein a time interval between the transmission of the signal and a previous transmission performed by the transceiver is less than a predetermined transmission period.

Abstract: The disclosure discloses an image display method, an image display device and a display system. The method includes: according to a image to be displayed, determining a maximum brightness value of pixel points in a panel partition to obtain a backlight brightness value corresponding to a backlight partition; acquiring a light diffusion curve of the backlight of the backlight partition incident on the panel partition corresponding to the backlight partition; calculating a compensation ratio of a target pixel to the light diffusion curve, the compensation ratio is a ratio of the maximum brightness value to an actual brightness value; calculating a pixel compensation value of the target pixel according to the image to be displayed and the compensation ratio; adjusting a pixel value of the target pixel point according to the pixel compensation value.

Abstract: Durable, anti-fouling, crosslinked zwitterionic coatings that are grafted to the surface of a substrate through covalent bonding are disclosed. When exposed to a light source, zwitterionic monomers react with a crosslinker and with activated radicals at the surface of the substrate, simultaneously forming the crosslinked zwitterionic coating and anchoring it to the surface of the substrate. Photomasking techniques can be used to micropattern the zwitterionic coatings. The zwitterionic coatings can be applied to a variety of substrates, including medical devices and systems.

Abstract: A high-frequency transmission element is provided. The high-frequency transmission element includes a connecting wire structure and an impedance matching plate structure. The connecting wire structure includes a connecting wire and a connecting pad. The connecting pad is located at an end of the connecting wire. The impedance matching plate structure includes an impedance matching plate body, an opening, and an impedance matching portion. The connecting pad is located in a projection range of the opening in a direction of orthographic projection of the impedance matching plate structure. The impedance matching portion is located in a periphery of the opening and extends in the direction from the connecting wire towards the connecting pad.

Abstract: A semiconductor device includes a gate structure on a substrate, a first spacer on a sidewall of the gate structure, a second spacer on a sidewall of the first spacer, a third spacer on a sidewall of the second spacer, and first and second stacks of an epitaxial layer and a cap layer respectively disposed at first and second sides of the gate structure. Preferably, a part of the second spacer comprises an I-shape, the cap layer includes a planar top surface and an inclined sidewall, the cap layer contacts the second spacer and the third spacer directly, and the cap layer includes a vertical sidewall connected to the inclined sidewall.

Abstract: A communication system, includes a satellite receiver in operable communication with a central server, a cellular node configured to operate within a proximity of the satellite receiver, and at least one mobile communication device configured to communicate (i) with the cellular node, (ii) within the proximity of the satellite receiver, and (iii) using a transmission signal capable of causing interference to the satellite receiver. The satellite receiver is configured to detect a repeating portion of the transmission signal and determine a potential for interference from the at least one mobile communication device based on the detected repeating portion.

Abstract: The present disclosure provides a display method and apparatus and an electronic device. The method includes: acquiring a virtual image, configuration information of the virtual image, and environment information of a current environment; wherein the virtual image comprises at least one virtual object and virtual feature point information of the at least one virtual object in an extended reality space coordinate system, and the environment information comprises point cloud information of at least one real object; determining a position relation between the real object and the virtual object, based on the virtual feature point information of the virtual object in the extended reality space coordinate system and the point cloud information; rendering the virtual object in accordance with one or more of the position relation, the configuration information, and the environment information, to determine a rendered image; and displaying the rendered image.