Abstract: A phase shifter and a method for operating the same, an antenna and a communication device are provided. The phase shifter includes: a first substrate and a second substrate opposite to each other; a dielectric layer between the first substrate and the second substrate; a first electrode on a side of the first substrate proximal to the second substrate; a second electrode on a side of the second substrate proximal to the first substrate; and a ground electrode on a side of the second substrate distal to the first substrate. The dielectric layer includes liquid crystal molecules, and the first electrode and the second electrode are configured to control rotation of the liquid crystal molecules according to different voltages respectively received by the first electrode and the second electrode. The second electrode has a one-piece structure.

Abstract: The present disclosure provides a call method and terminal, and a non-transitory computer-readable storage medium. The call method includes: receiving or initiating, by a first terminal, a call request to establish a call with a second terminal; detecting, by the first terminal, at least one of the following: a current task being executed by the first terminal, whether there is one or more third terminals capable of assisting in the call, and a current task being executed by a third terminal; and selecting whether a display interface of the first terminal displays a call assisting option according to the current task being executed by the first terminal and/or the current task being executed by the third terminal; wherein the call assisting option is used to prompt a user to select to answer the call with the second terminal through the assistance of the third terminal.

Abstract: An amplifying circuit and a rectifying antenna are provided. The amplifying circuit includes: a first rectifying circuit (20), configured to output a first direct current signal according to an alternating current signal; a second rectifying circuit (30), configured to output a second direct current signal according to the alternating current signal; a differential amplifying circuit (40), configured to receive the first direct current signal and the second direct current signal, amplify a difference between the first direct current signal and the second direct current signal, and output an amplified difference between the first direction current signal and the second direct current, the first direct current signal and the second direct current signal have directions opposite to each other. The amplifying circuit can improve sensitivity of an antenna with relatively low costs.

Abstract: An interaction method for a terminal, and an electronic whiteboard and a non-transitory computer-readable storage medium. The terminal includes at least one electronic whiteboard. The interaction method for a terminal comprises: identifying and acquiring information recorded in an electronic whiteboard (S101); according to the acquired information, obtaining information to be sent (S102); and according to a user operation instruction, sending the information to be sent to a target object (S103).

Abstract: A phase shifter and a method for operating the same, an antenna and a communication device are provided. The phase shifter includes: a first substrate and a second substrate opposite to each other; a dielectric layer between the first substrate and the second substrate; a first electrode on a side of the first substrate proximal to the second substrate; a second electrode on a side of the second substrate proximal to the first substrate; and a ground electrode on a side of the second substrate distal to the first substrate. The dielectric layer includes liquid crystal molecules, and the first electrode and the second electrode are configured to control rotation of the liquid crystal molecules according to different voltages respectively received by the first electrode and the second electrode. The second electrode has a one-piece structure.

Abstract: An electronic device, a control terminal, a non-transitory computer-readable storage medium, and a device connection method are provided. The electronic device includes: a device body and first Bluetooth equipment; the device body is configured to display information to be scanned, said information including identification information of the electronic device, the identification information including a media access control address; the first Bluetooth equipment is configured to send a broadcast signal outwards, the broadcast signal including: a name and content, the name including the identification information of the electronic device, and the content including the media access control address of the first Bluetooth equipment; and the first Bluetooth equipment is further configured to establish, in response to the information to be scanned being scanned by the control terminal, communication connection with the control terminal.

Abstract: A split screen interaction method and apparatus, an electronic device and a computer-readable storage medium. The method comprises: in response to a user operation, controlling a display to display a first interface and a second interface in a split-screen mode, wherein the first interface displays a list of a plurality of destinations, and wherein the second interface displays a map interface; in response to a user operation on the plurality of destinations, controlling the map interface to display routes from a user’s current location to each of the plurality of destinations and a plurality of icons corresponding to the plurality of destinations; and in response to a user operation on at least one of the plurality of icons, controlling the first interface to adjust display content.

Abstract: The present disclosure provides a monitoring method, a monitoring device and a monitoring server. The monitoring method includes: acquiring physical sign information of a user; determining whether a physical sign of the user is in an abnormal state based on the physical sign information; acquiring first physical symptom information of the user in response to the physical sign of the user being in the abnormal state; and transmitting the physical sign information and the first physical symptom information to a monitoring server to determine a health status of the user.

Abstract: The present disclosure provides an information sharing method and apparatus, an electronic device, and a non-transitory computer-readable storage medium, relating to the field of data processing. The information sharing method includes: acquiring information to be shared, and extracting a first parameter of the information to be shared; acquiring object groups to share with; grouping, based on a first preset rule, the information to be shared according to the first parameter to obtain information groups; matching, based on a second preset rule, the information groups with the object groups; and processing, in response to the operation of acquiring the object groups, the matched information groups respectively, and sharing the matched information groups to corresponding object groups.

Abstract: The present disclosure provides a human-computer interaction method and apparatus, computer-readable storage medium and electronic device, and relates to the technical field of computer question answering. The human-computer interaction method includes receiving an input question; extracting entities and relationships involved in the input question; querying an answer to the input question in a knowledge graph according to the entities and the relationships; and displaying a sub-graph of the knowledge graph. The sub-graph of the knowledge graph includes entities involved in the input question and the answer, and a directional identifier, wherein the directional identifier is configured to identify a reasoning path corresponding to the query process.

Abstract: An amplifying circuit and a rectifying antenna are provided. The amplifying circuit includes: a first rectifying circuit (20), configured to output a first direct current signal according to an alternating current signal; a second rectifying circuit (30), configured to output a second direct current signal according to the alternating current signal; a differential amplifying circuit (40), configured to receive the first direct current signal and the second direct current signal, amplify a difference between the first direct current signal and the second direct current signal, and output an amplified difference between the first direction current signal and the second direct current, the first direct current signal and the second direct current signal have directions opposite to each other. The amplifying circuit can improve sensitivity of an antenna with relatively low costs.

Abstract: A liquid crystal antenna, a manufacturing method and a driving method thereof, and a communication device are disclosed. The liquid crystal antenna includes a first substrate and a second substrate provided opposite to each other, a liquid crystal layer, a plurality of microstrip patch antenna structures and a ground electrode. The liquid crystal layer and the plurality of microstrip patch antenna structures are located between the first substrate and the second substrate; the ground electrode is located on a side of the first substrate away from the liquid crystal layer. Each of the plurality of microstrip patch antenna structures is configured to receive a voltage signal that controls deflection of liquid crystal molecules in the liquid crystal layer and to receive or transmit a microwave signal.

Abstract: An amplifying circuit and a rectifying antenna are provided. The amplifying circuit includes: a first rectifying circuit, configured to output a first direct current signal according to a first alternating current signal; a second rectifying circuit, configured to output a second direct current signal according to a second alternating current signal; a differential amplifying circuit, configured to receive the first direct current signal and the second direct current signal, amplify a difference between the first direct current signal and the second direct current signal, and output an amplified difference between the first direction current signal and the second direct current, the first direct current signal and the second direct current signal have directions opposite to each other.

Abstract: A display device includes a frame, a display module is provided in the frame, a plurality of press sheets for fixing the display module are provided around the display module. Each press sheet is provided with a positioning part which limits a position of the press sheet in a direction parallel to a display surface of the display module.

Abstract: A frame includes a first frame, a back case and a second frame. The first frame includes a first frame plate and a first frame wall, the back case includes a back case plate and a back case wall, the second frame includes a second frame plate and a second frame wall, and the second frame surrounds the first frame and the back case. The second frame plate is located on a side of the first frame plate facing away from the back case plate, and the first frame wall is protruded from a surface of the first frame plate facing towards the back case plate, the back case wall is protruded from a surface of the back case plate facing towards the first frame plate, and the second frame wall is protruded from a surface of the second frame plate facing towards the first frame plate.

Abstract: A digital work generating device, a digital work generating method and a computer-readable storage medium are provided. The digital work generating device includes: an obtaining unit configured to obtain presetting information and an initial content of the digital work; a generating unit configured to generate at least one partial content of the digital work according to the initial content and the presetting information; and a processing unit configured to process the initial content and the at least one partial content to generate the digital work.

Abstract: A phase shifter and a method for operating the same, an antenna and a communication device are provided. The phase shifter includes: a first substrate and a second substrate opposite to each other; a dielectric layer between the first substrate and the second substrate; a first electrode on a side of the first substrate proximal to the second substrate; a second electrode on a side of the second substrate proximal to the first substrate; and a ground electrode on a side of the second substrate distal to the first substrate. The dielectric layer includes liquid crystal molecules, and the first electrode and the second electrode are configured to control rotation of the liquid crystal molecules according to different voltages respectively received by the first electrode and the second electrode. The second electrode has a one-piece structure.

Abstract: An electronic device, a control terminal, a non-transitory computer-readable storage medium, and a device connection method are provided. The electronic device includes: a device body and first Bluetooth equipment; the device body is configured to display information to be scanned, said information including identification information of the electronic device, the identification information including a media access control address; the first Bluetooth equipment is configured to send a broadcast signal outwards, the broadcast signal including: a name and content, the name including the identification information of the electronic device, and the content including the media access control address of the first Bluetooth equipment; and the first Bluetooth equipment is further configured to establish, in response to the information to be scanned being scanned by the control terminal, communication connection with the control terminal.

Abstract: A phase shifter and a method for operating the same, an antenna and a communication device are provided. The phase shifter includes: a first substrate and a second substrate opposite to each other; a dielectric layer between the first substrate and the second substrate; a first electrode on a side of the first substrate proximal to the second substrate; a second electrode on a side of the second substrate proximal to the first substrate; and a ground electrode on a side of the second substrate distal to the first substrate. The dielectric layer includes liquid crystal molecules, and the first electrode and the second electrode are configured to control rotation of the liquid crystal molecules according to different voltages respectively received by the first electrode and the second electrode.

Abstract: A liquid crystal antenna, a manufacturing method and a driving method thereof, and a communication device are disclosed. The liquid crystal antenna includes a first substrate and a second substrate provided opposite to each other, a liquid crystal layer, a plurality of microstrip patch antenna structures and a ground electrode. The liquid crystal layer and the plurality of microstrip patch antenna structures are located between the first substrate and the second substrate; the ground electrode is located on a side of the first substrate away from the liquid crystal layer. Each of the plurality of microstrip patch antenna structures is configured to receive a voltage signal that controls deflection of liquid crystal molecules in the liquid crystal layer and to receive or transmit a microwave signal.