Abstract: A securely pre-coded orthogonal frequency division multiplexing (SP-OFDM) system includes a transmitter configured to transmit a secure transmit signal through a dynamic constellation and a receiver configured to recover the original signal from the received secure transmit signal. It is aimed to reinforce the physical layer security of wireless communications under hostile interference. Potential applications include 4G and 5G communication systems, ASTC3.0 HDTV systems, WiFi systems, and any future wireless systems that utilize OFDM.

Abstract: Operating a message queue cluster having multiple nodes. A messaging request from a client is obtained by one or more processors, the messaging request to be routed to one of multiple nodes in a cluster. The one or more processors parse the messaging request to determine whether the messaging request should be routed to an other node. A messaging request is obtained from a client by one or more processors, the messaging request to be routed to one of multiple nodes in a cluster. The messaging request is parsed by one or more processors to determine whether the messaging request should be routed to an other of the multiple nodes in the cluster. The messaging request is routed by one or more processors in response to a determination that the messaging request should be routed to the other one of the multiple nodes in the cluster.

Abstract: A dual output power supply including: a first power conversion unit for generating a first DC output voltage to drive a first load according to a DC input voltage; a second power conversion unit for generating a second DC output voltage to drive a second load according to the DC input voltage; a switching unit having two channel ends coupled to the first DC output voltage and the second DC output voltage respectively; a load power measurement unit for measuring a sum of power of the first load and the second load; and a digital microcontroller unit coupled to the switching unit and the load power measurement unit for determining a switching signal to drive a control terminal of the switching unit according to the sum of power.

Abstract: A microfluidic chip suitable for detecting a microdroplet includes a first component, a second component, a channel layer, and a semiconductor chip. The first component includes a first substrate, a first electrode layer, and a first dielectric layer, wherein the first electrode layer is located between the first substrate and the first dielectric layer. The second component is disposed opposite to the first component and includes a second substrate, a second electrode layer, and a second dielectric layer. The channel layer is located between the first component and the second component. The semiconductor chip is disposed at one side of the first substrate and is exposed to the channel layer to assist in treating or detecting a sample or microdroplet. The microdroplet in the sample entering the channel layer is reacted with the semiconductor chip, and thus the sample is detected.

Abstract: The present invention discloses a cage-type CT scanner. The present invention involves reducing the rotation arc of the rotating member and the vibration amplitude of the whole machine by means of reducing the volume and weight of the CT scanner, without reducing the vibration of the CT scanner itself by eliminating eccentric force in transmission via balance correction or by any other means. Moreover, in the present invention, no crawler that realizes mechanical driving is used so as to decrease the parts in the motor's synchronization structure. Such efforts help reduce costs and allow the CT scanner to be suitable for more applications.

Abstract: A pixel matrix driving device and a display device are provided. The pixel matrix driving device includes a pixel matrix, a timing controller and a driving circuit. The pixel matrix includes a plurality of sub-pixels, an i-th column of sub-pixels in the plurality of sub-pixels and an (i+1)-th column of sub-pixels in the plurality of sub-pixels have different polarity inversion positions. The timing controller is configured for obtaining an initial pixel value, and obtaining a first grayscale value and a second grayscale value according to the initial pixel value. The driving circuit is configured for obtaining a first driving voltage according to the first grayscale value, obtaining a second driving voltage according to the second grayscale value, and applying the first driving voltage and the second driving voltage into the pixel matrix. The disclosure can improve the horizontal equidistant horizontal stripes and improve the washout phenomenon of the display panel.

Abstract: A scan signal compensating method and a scan signal compensating device based on a scan driving circuit are provided. The method exemplary includes: acquiring a scan signal compensation voltage value in a detecting period; adjusting a clock signal(s) and a DC voltage source(s) inputted to the gate driving circuit according to the scan signal compensation voltage value, in an adjusting period. In particular, after the scan signal compensation voltage value is obtained, amplitudes of the clock signal(s) and the DC voltage source(s) inputted into the gate driving circuit are adjusted, thereby solving problems of ghost and flicker of a display device caused by pixel capacitance leakage in the active area resulting from the drift of I-V characteristic curve of TFTs in the active area suffered from a long-term voltage difference.

Abstract: The invention provides a display panel, including a color filter substrate and a thin film transistor array substrate disposed oppositely, and a liquid crystal layer filled between the color filter substrate and the thin film transistor array substrate, wherein the thin film transistor array substrate includes a display area, a non-display area, and a plurality of photo sensors are disposed in the display area; the color filter substrate is formed with a plurality of light transmissive passages; the thin film transistor array substrate is disposed with a plurality of sub-pixels; and the photo sensor is configured for detecting position information corresponding to an external photoelectric signal when receiving the external photoelectric signal. The display panel is provided with a plurality of photo sensors, when the incident laser light is irradiated onto the photo sensor, the photo sensor can be triggered to work, and the laser projection position is determined.

Abstract: Operating a message queue cluster having multiple nodes. A messaging request from a client is obtained by one or more processors, the messaging request to be routed to one of multiple nodes in a cluster. The one or more processors parse the messaging request to determine whether the messaging request should be routed to an other node. A messaging request is obtained from a client by one or more processors, the messaging request to be routed to one of multiple nodes in a cluster. The messaging request is parsed by one or more processors to determine whether the messaging request should be routed to an other of the multiple nodes in the cluster. The messaging request is routed by one or more processors in response to a determination that the messaging request should be routed to the other one of the multiple nodes in the cluster.

Abstract: A scan signal compensating method, a scan signal compensating circuit and a display device are provided. The compensating method includes: disposing a reference TFT; obtaining a drain current of the reference TFT; acquiring a compensation voltage value according to the drain current; and performing voltage compensation to a GOA driving circuit according to the compensation voltage value. By disposing the reference TFT to acquire a drift of I-V characteristic curve of a certain TFT of the GOA driving circuit, obtaining the compensation voltage value according to a drifted drain current of the reference TFT and compensating a driving voltage of the GOA driving circuit, the problem of display image sticking or flickering caused by the drift of I-V characteristic curve of the TFT in the GOA driving circuit resulting from a long-term bias voltage can be solved consequently.

Abstract: The invention discloses a pixel structure and a pixel unit. The pixel structure includes a main electrode; and a plurality of branch electrodes connected to the main electrode; wherein the branch electrode includes a first branch electrode and a second branch electrode, an acute intersecting angle between the first branch electrode and the main electrode is a first angle, and an acute intersecting angle between the second branch electrode and the main electrode is a second angle. The invention solves the whitening phenomenon which occurs in the side view by designing the acute intersecting angle between the branch electrode and the main electrode as the first angle and the second angle.

Abstract: A load adaptive power supply including: a conducting resistance controllable bridge rectifying unit for generating a full-wave rectified output voltage according to an AC input voltage to drive a load, and controlling an on-resistance thereof during at least one half cycle of a positive half cycle and a negative half cycle of the AC input voltage according to at least one control signal; a driving circuit unit configured to generate the at least one control signal according to a pulse modulation signal; and a digital microcontroller unit coupled with the driving circuit unit to determine a duty ratio of the pulse modulation signal according to a power of the load to drive the driving circuit unit, so as to adjust the on-resistance of the conducting resistance controllable bridge rectifying unit according to different values of the power, thereby increasing a power conversion efficiency of the power supply.

Abstract: A social networking system allows users to create and join groups in the social networking system, in which each group is associated with one or more interests shared by members of the group. To select content for presentation to a viewing user of the social networking system who is a member of a group, the social networking system may determine one or more topics associated with the group based at least in part on a classification system and on information associated with objects maintained in the social networking system that are similar to the group. The topic(s) associated with the group also may be determined based on information associated with the group, with members of the group, and/or with objects associated with the group. The social networking system may then select one or more content items associated with the topic(s) for presentation to the viewing user via a group page.

Abstract: The invention discloses a pixel structure including: a main electrode, and a plurality of branch electrodes connected to the main electrode; wherein closed areas and open areas are formed among the plurality of the branch electrodes. The invention solves the problem that the liquid crystal at the edge position of the peripheral closed design scheme is easily affected by the electric field and the alignment disorder occurs by designing the branch electrode in the ITO electrode as the closed area and the open area, so that the display is uniform and the display effect is improved. Further, with respect to the design of the peripheral opening, the invention reduces the number of black streaks and increases the light transmittance due to the closed areas and the open areas of the interval distribution.

Abstract: A matrix circuit substrate, having a substrate body, having a first surface and a second surface which are opposite each other, and at least one sidewall located between the first surface and the second surface, the sidewall having at least one recess; multiple electrodes, disposed in a crisscross arrangement on the first surface; and at least one first conductive material, disposed in the recess to correspond to at least one of the electrodes, and electrically connected to the electrode. Additionally, a display apparatus having such substrate, and to a method for manufacturing such substrate.

Abstract: The present invention discloses a liquid crystal display panel and a liquid crystal display device, the liquid crystal display panel includes: a plurality of data lines and a plurality of scan lines, wherein the plurality of data lines intersect with the plurality of scan lines to define X rows and Y columns of pixel units arranged in a matrix, S types of different polarity inversion positions are existed from an i-th column of pixel unit to an [i+(U?1)]-th column of pixel unit, where 0<i<Y, U?4, S?2, and U is a polarity inversion repetition period in a scan line direction. The liquid crystal display panel and the liquid crystal display device provided by the present invention can alleviate the phenomenon of horizontal equidistant horizontal stripes, and can reduce the problem of excessive power consumption and temperature increase caused by driving.

Abstract: This application discloses a reality-augmented information display method performed by a first terminal that is communicatively connected to a remote server. The method includes: obtaining a first geographical location of the first terminal and a first orientation of the camera; transmitting the first geographical location and the first orientation to the server; receiving, from the server, first information, wherein the first information is released by a second terminal at a second geographical location that is within a region defined by the first geographical location and the first orientation; determining a display location of the first information on the display of the first terminal according to the second geographical location within the region defined by the first geographical location and the first orientation; and displaying, at the display location, presentation information used to represent the first information while displaying a real-time image captured by the camera on the display.

Abstract: The present disclosure relates a GOA array substrate, a preparation method thereof and a liquid crystal display panel. The array substrate includes a substrate; a thin film transistor array layer disposed on the substrate; a color filter layer disposed on the thin film transistor array layer, wherein the color filter layer is provided with a via hole penetrating the color filter layer into the thin film transistor array layer, a surface of the color filter layer is further provided with a vent hole; a second protective layer disposed on the color filter layer; a transparent conductive layer disposed on the via hole and the second protective layer; and a cover layer disposed on the vent hole and the second protective layer. The vent hole provided with a cover layer can prevent the gas remaining in the color filter layer from encountering the influence of high temperature or high pressure.

Abstract: The application relates to a driving device for a display panel, including: a system-on-chip, a first transmission circuit board, a second transmission circuit board, a source driver and a gate driver. The first transmission circuit board and the second transmission circuit board are juxtaposed on the source side of the display panel and connected by a connector, the source driver includes a plurality of source chip on films on the source side and connected to the display panel, the first transmission circuit board and the second transmission circuit board are respectively connected to corresponding ones of the plurality of source chip on films. The signal transmission distances of the data output end of the system-on-chip to the source COFs respectively connected to symmetrical positions of the display panel are equal, ensuring the symmetry and stability of the transmitted signal.

Abstract: The invention relates to a ghost relieving circuit for a display panel including a digital-to-analog converter, a first switching circuit, a second switching circuit, and a gamma chip. The gamma chip is connected to the digital-to-analog converter and configured to provide a plurality of reference voltages to the digital-to-analog converter. The digital-to-analog converter is individually connected to the first switching circuit and the second switching circuit, the first switching circuit is connected to receive a first working voltage and a positive-polarity reference voltage and has an positive-polarity data voltage output end, the second switching circuit is connected to receive a second working voltage and a negative-polarity reference voltage and has a negative-polarity data voltage output end, and the positive-polarity reference voltage is less than the negative-polarity reference voltage.