Abstract: A method includes displaying a first interface, where the first interface indicates that an operator call is currently performed with a second device, displaying a second interface of a first application when performing the operator call with the second device, receiving a user operation on the second interface, and sending first data to the second device, where the first data is used by the second device to output multimedia data related to the second interface.

Abstract: A circuit for mitigating single-effect-transients (SETs) comprising: a first sub-circuit comprising a first p-type transistor arrangement configured to generate a first output and a first n-type transistor arrangement configured to generate a second output; and a second sub-circuit comprising a connecting p-type transistor arrangement and a connecting n-type transistor arrangement connected in series, wherein the first output and the second output are electrically coupled to each other through the second sub-circuit.

Abstract: The present disclosure relates to pre-caching methods, user interfaces, and electronic devices. In one example method, an electronic device obtains itinerary information, and pre-caches, based on the itinerary information, multimedia content before a user travels, or pre-caches a part of the multimedia content when the user travels, to ensure that the electronic device can play the cached multimedia content smoothly when the user passes through a road section whose network signal strength is weak during travel.

Abstract: A method includes after a user touches a near-field communication (NFC) tag on a second electronic device using a first electronic device having an NFC function, a plurality of functions can be implemented simultaneously. For example, after the user holds a mobile phone to touch an NFC tag on a television, the mobile phone establishes a wireless connection to the television, and synchronizes a video being played on the mobile phone with the television for playing.

Abstract: A communications system switching method and a terminal device establish, by the terminal device, a connection to a first communications system, run a first application, obtain a QoS value of a second communications system, determine based on a preset policy and a QoS requirement of the first application, whether the QoS value of the second communications system meets the QOS requirement of the first application. When the QoS value of the second communications system meets the QOS requirement of the first application, the terminal device disconnects from the first communications system and establishes a connection to the second communications system.

Abstract: Disclosed herein is a folding optical waveguide near-to-eye display device, including: an image source (111), a prism (121) with a cylindrical surface, a curved lens (131), a prism (141), and a prism group (151) connected by two or more prisms glued together in sequence, where a prism surface of the prism (121) is partially or completely a cylindrical surface, the cylindrical surface faces the image source (111), the prism (121) is connected to the prism (141) through a prism surface other than the cylindrical surface to form a first gluing surface, the prism (121) is connected with an opposite surface of a curved surface of the curved lens (131) through another prism surface other than the cylindrical surface to form a second gluing surface, and the prism (141) and the prisms of the prism group (151) are glued and connected in sequence.

Abstract: Embodiments of this application provide a Bluetooth communication method and system. The method includes: A first electronic device to be added to a BLE network may actively send a request for joining the BLE network, and a second electronic device in the BLE network may prompt, in response to the request of the first electronic device, a third electronic device that currently, there is the first electronic device to be added to the BLE network. The third electronic device may display a pop-up prompt, to notify a user that currently, there is the first electronic device to be added to the BLE network. After the user agrees, the third electronic device prompts the second electronic device to configure the BLE network for the first electronic device.

Abstract: This application discloses a method for automatically activating an NFC application and a terminal, and relates to the terminal field. When a terminal has a plurality of SEs, an NFC application accessed by a transaction instruction is automatically activated. The terminal may include an NFC controller and at least two SEs, and each of the at least two SEs carries at least one NFC application. A specific solution is as follows: The NFC controller receives a transaction instruction, determines a target SE from the at least two SEs according to the transaction instruction, and sends the transaction instruction to the target SE; the target SE receives the transaction instruction, and determines, according to the transaction instruction, a target NFC application from an NFC application carried in the target SE; and the target SE runs the target NFC application, and executes the transaction instruction.

Abstract: The present disclosure relates to terminal devices, multi-link communication methods, and chips. In one example method, when a terminal device supports Wi-Fi and D2D (for example, V2X) communication, the terminal device may communicate with another terminal device in a multi-link collaborative transmission manner such as a Wi-Fi link and a D2D link to implement multi-link accelerated transmission in a local area network.

Abstract: This application provides a communication method, a terminal device, and a storage medium. The communication method includes: A first terminal device performs a Wi-Fi P2P service in response to a first operation of a user, where the first terminal device uses a first channel to perform the Wi-Fi P2P service, and a bandwidth of the first channel is a maximum bandwidth supported by the first terminal device, and is 80 MHz or 160 MHz. When detecting that a signal-to-noise ratio and/or a channel load of the first channel meet a first preset condition, the first terminal device switches from the first channel to a second channel to perform the Wi-Fi P2P service, where a bandwidth of the second channel is 20 MHz or 40 MHz.

Abstract: The present disclosure provides a near-eye display device. The near-eye display device includes: a light source module and an optical module, where the light source module includes multiple laser image sources, which are vertical-cavity surface-emitting laser (VCSEL) image sources or collimated light image sources; the light source module is configured to: perform digital-to-analog (D-A) conversion on an image signal and load the image signal into the laser image sources, such that the laser image sources emit red, green, and blue (RGB) laser beams; the optical module includes a compound eye control chip and a projection element array; the projection element array includes multiple projection elements, which are arranged on the compound eye control chip according to a preset arrangement pattern; and the optical module is configured to: control the projection elements to rotate within a preset angle through the compound eye control chip.

Abstract: The present disclosure provides a near-eye display device. The near-eye display device includes: a light source module and an optical module, where the light source module includes multiple laser image sources, which are vertical-cavity surface-emitting laser (VCSEL) image sources or collimated light image sources; the light source module is configured to: perform digital-to-analog (D-A) conversion on an image signal and load the image signal into the laser image sources, such that the laser image sources emit red, green, and blue (RGB) laser beams; the optical module includes a compound eye control chip and a projection element array; the projection element array includes multiple projection elements, which are arranged on the compound eye control chip according to a preset arrangement pattern; and the optical module is configured to: control the projection elements to rotate within a preset angle through the compound eye control chip.

Abstract: An apparatus for detecting an anomaly in an electronic system embodying at least two integrated circuits, and where necessary, removing/mitigating the anomaly. The anomaly detection is based on sensing the characteristics of either the current, the voltage, or both the current and voltage of the supply rail connected to the at least two integrated circuits. When an anomaly occurs, the anomaly is detected by one sensing circuit sensing that the characteristics are different from that when the electronic system is functioning normally.

Abstract: A method for dynamically resizing an instruction memory and a data memory in a system includes: defining, by a memory control circuit, a plurality of memory selection modes; selecting a memory selection mode from the plurality of memory selection modes, and writing the memory selection mode into a firmware control register; and redistributing, by the memory control circuit, a plurality of memory cells in the instruction memory and a plurality of memory cells in the data memory according to the memory selection mode stored in the firmware control register.

Abstract: A data packet transmission method—that includes: obtaining, by a terminal, N application programs that are running; and if the N application programs include an application program including a low-latency service; determining whether an unlicensed frequency band is in a congestion state; and instructing a network device to schedule a data packet of the terminal to a licensed frequency band for transmission when the unlicensed frequency band is in a congestion state. When determining that the N running application programs include the application program including the low-latency service, the terminal may instruct the network device to schedule the data packet of the terminal to the licensed frequency band for transmission, so as to transmit a data packet of the low-latency service by using the licensed frequency band. Resources in the licensed frequency band are centrally scheduled by the network device, instead of being used through contention.

Abstract: A device that includes one or more charging circuits is disclosed. Each charging circuit includes an input for connecting to an energy source, an output for connecting to an energy storage device, a signal generator and a switching circuit. The signal generator is configured to generate a control signal that includes enabling and disabling signal portions having a duty cycle that is based on an output voltage at the output. The switching circuit is configured to alternately couple the output to the input and a ground during the enabling signal portions of the control signal, and to isolate the output from the input and the ground during the disabling signal portions of the control signal. A method of charging an energy storage device is also disclosed.

Abstract: A BLUETOOTH reconnection method is used in a BLUETOOTH connection system that includes a first device and a second device. The method includes that the first device sends a BLUETOOTH Low Energy (BLE) advertising signal to the second device after a BLUETOOTH connection between the first device and the second device is disconnected. If the second device determines that the received BLE advertising signal is a first BLE advertising signal, the second device does not page the first device, and waits to receive a page packet sent by the first device. If the second device determines that the received BLE advertising signal is a second BLE advertising signal, the second device actively pages the first device, and the first device waits to receive a page packet sent by the second device.

Abstract: This application provides a data transmission method, apparatus and system, so as to copy data in a system memory to a sending queue of a first communications module through a system bus, and then send the data to a second terminal based on the first communications module. Device to device communication, directly through system memory copying and MAC/PHY layer 2 forwarding, greatly optimizes load and delay of Wi-Fi packet forwarding, which can effectively reduce time spent on data transmission of device to device services, effectively reduce system load, reduce transmission delay, and increase the Wi-Fi throughput.

Abstract: This application provides a communication method, a device, and a communications system. The communications system includes a STA device and an AP device. The STA device sends an uplink packet to the AP device by using at least one basic channel element. The AP device detects uplink channel quality of the STA device, and sends a notification message to the STA device when the uplink channel quality meets a first preset condition, to indicate the STA device to send an uplink packet to the AP device by using a target frequency domain resource.

Abstract: Disclosed herein is a folding optical waveguide near-to-eye display device, including: an image source (111), a prism (121) with a cylindrical surface, a curved lens (131), a prism (141), and a prism group (151) connected by two or more prisms glued together in sequence, where a prism surface of the prism (121) is partially or completely a cylindrical surface, the cylindrical surface faces the image source (111), the prism (121) is connected to the prism (141) through a prism surface other than the cylindrical surface to form a first gluing surface, the prism (121) is connected with an opposite surface of a curved surface of the curved lens (131) through another prism surface other than the cylindrical surface to form a second gluing surface, and the prism (141) and the prisms of the prism group (151) are glued and connected in sequence.