Abstract: This application relates to the field of cellular communication technologies, and discloses a method for using cellular communication, and a related apparatus and system, whose objective is to share all cellular communication functions of a second device with a first device for use. The distributed cellular communication module of the first device forwards a received cellular communication service request to the second device, and then receives response data corresponding to the cellular communication service request and returned by the distributed cellular communication module of the second device, where the response data corresponding to the cellular communication service request is obtained by performing processing by a Modem of the second device, and then the first device uses the Modem of the second device to process all cellular communication service requests of the first device, to have all cellular communication capabilities of the second device.

Abstract: An electronic element connection structure includes a connecting board, a first element, and a second element. The first element is connected to one side of the connecting board, and the second element is connected to an other side of the connecting board. A vertical projection of the first element on a preset plane overlaps with a vertical projection of the second element on the preset plane, where the preset plane is parallel to a plane on which one of the sides of the connecting board is located. A distance between the first element and the second element in a direction perpendicular to the preset plane is greater than or equal to a threshold distance.

Abstract: Embodiments of this application provide an electronic device component. A first charging coil and a second charging coil are respectively disposed in a wireless keyboard and a stylus. At least one of the first charging coil and the second charging coil is a circle coil, and the circle coil is disposed around circumference of an accommodating portion or the stylus. The stylus can be charged when the stylus is blindly inserted into the accommodating portion, to resolve a prior-art problem that a user cannot quickly charge the stylus because the charging coils need to be aligned for a plurality of times when the stylus is charged.

Abstract: A terminal antenna includes a first excitation part and a first radiation part, and the first excitation part is disposed at a middle location of the first radiation part. A common-mode feed is disposed on the first excitation part, and the common-mode feed is disposed between the first radiation part and the first excitation part. The common-mode feed is one or two feeds disposed between the first excitation part and the first radiation part.

Abstract: An interaction control method includes: acquiring NFC device status information in response to triggering of near field communication NFC, where the NFC device status information includes status information of a master device and status information of a slave device; and providing an interactive function corresponding to the acquired NFC device status information according to a preset mapping relationship, and executing the interactive function in response to a trigger condition to realize information exchange between the master device and the slave device.

Abstract: This application provides a blood pressure measurement method for a wearable device and a wearable device, so as to improve measurement accuracy of a blood pressure value. The wearable device includes a pressure transducer (PT) and a photoplethysmography (PPG) module. The PT and the PPG module are deployed at a target position of the wearable device. The target position includes a position for contacting a wearer when the wearable device is in a worn state. The method includes: obtaining a pressure value collected by the PT; obtaining a PPG signal collected by the PPG module; and determining a blood pressure value of the wearer based on the pressure value and the PPG signal.

Abstract: Disclosed are a communication method and apparatus in the field of communication technologies. The includes: receiving, by a first cell, a registration request from a terminal device, and sending a plaintext ID query for identity authentication of the terminal device; sending, by the terminal device, the identity information of the terminal device to the first cell in response to the plaintext ID query; receiving, by the first cell, the identity information, and sending a registration reject message and an RRC RELEASE to the terminal according to the identity information, where the registration reject message carries a reject cause value; and executing a disable instruction on the first cell in a case that the RRC RELEASE includes instruction for redirecting to a low-standard cell. The method provides a solution on how to escape when a terminal is frequently rejected by a network side, thereby helping the terminal device to register successfully.

Abstract: This application discloses a speaker and a headset, and belongs to the field of audio technologies. The headset includes a speaker, and the speaker includes a first magnetic body, a second magnetic body, a basket, a first voice coil, a first diaphragm, a second voice coil, and a second diaphragm. The first magnetic body is disposed around an outer circumference of the second magnetic body. The basket includes a peripheral part and a basket top connected to the peripheral part. The peripheral part is disposed around an outer circumference of the first magnetic body. The first voice coil is connected to the first diaphragm. The first magnetic body and the basket top are combined to form a magnetic loop with the second magnetic body. This application helps reduce a volume of the headset, and facilitates miniaturization of the headset.

Abstract: This application relates to the stylus field, provides a stylus and an electronic device assembly. The stylus includes a main circuit board, a pressure sensing module, and a first flexible printed circuit. The main circuit board includes a pressure sensing chip; the pressure sensing module includes a pressure strain collection element; one end of the first flexible printed circuit is electrically connected to the pressure strain collection element, and the other end of the first flexible printed circuit is electrically connected to the main circuit board for communication between the pressure sensing chip and the pressure strain collection element. The stylus may be further configured to transmit a first coded signal and a second coded signal. The second coded signal of a coding chip is transmitted by using a second flexible printed circuit.

Abstract: Embodiments of this application provide a photoplethysmography (PPG) based control method and an electronic device and relate to the field of terminal technologies. The method includes: using, by the electronic device, the plurality of LEDs to emit a light signal corresponding to a first current; using, by the electronic device, at least one of the plurality of PDs to obtain a second current returned by the light signal corresponding to the first current via a human tissue; and reducing, by the electronic device, the first current by using a preset first current step size when the electronic device determines that the second current is greater than a target current; or increasing, by the electronic device, the first current by using the preset first current step size when the electronic device determines that the second current is less than the target current.

Abstract: Embodiments of this application disclose a heart rate monitoring method and apparatus. A harmonic weight value is calculated according to a PPG signal, the harmonic weight value is then used to determine a confidence of a heart rate, and a heart rate value is output only when the confidence is high. The method includes: determining that a wearer of the electronic device is a living body; obtaining a first PPG signal; determining a first heart rate and a confidence of the first heart rate according to the first PPG signal, where the confidence of the first heart rate is determined by weight coefficients of M harmonic signals; outputting the first heart rate in a case that the confidence of the first heart rate meets a preset confidence condition; and displaying the first heart rate.

Abstract: An application card replacing method and a terminal device. The terminal device receives a first operation performed on a first application card on a first user interface; displays a second user interface in response to the first operation, where the second user interface includes a first option; receives a second operation performed on the first option; displays a third user interface in response to the second operation, where the third user interface includes a second application card, and the second application card is a card generated in response to the second operation; and automatically deletes the first application card.

Abstract: An image obtaining method and an electronic device relate to the field of photographing technologies. An electronic device receives a first operation of a user; displays a first interface in response to a first operation; selects a second image—from a first video stream, where the first video stream is obtained by an ISP by performing, on a plurality of frames of first images, first processing including subsampling; buffers the first images in a first buffer queue; uses m frames of first images corresponding to the second image in the first buffer queue as an input, and runs a preset RAW domain image processing algorithm to obtain a third image; performs, by using an ISP, second processing not including subsampling on the third image, to obtain a fourth image; and after video recording ends, displays a highlight image obtained by encoding the fourth image.

Abstract: A method includes: obtaining original image information, where the original image information includes an original image and brightness level information; obtaining, based on the brightness level information included in the original image information and a brightness threshold, a thresholding segmentation result corresponding to the original image, where the thresholding segmentation result includes area class labels corresponding to pixels in the original image, the area class labels are used to indicate classes of areas corresponding to the pixels in the original image, the areas include a standard dynamic range area and an extended dynamic range area; and performing dynamic range extension on the extended dynamic range area in the original image based on the thresholding segmentation result corresponding to the original image, to obtain an extended dynamic range image corresponding to the original image.

Abstract: Embodiments of this application provide an antenna structure. The antenna structure includes a first radiation stub, a second radiation stub, and a first feed. The first radiation stub includes two grounding points and a first feed point. The first feed point is located between the two grounding points, and the two grounding points are configured for grounding. The first radiation stub is spaced apart from a ground connected to the two grounding points to form a slot, and the first radiation stub forms a slot antenna. The second radiation stub has a gap with the first radiation stub, and the second radiation stub is coupled to the first radiation stub through the gap. The first feed is electrically connected to the first feed point of the first radiation stub and is configured to provide a first feed signal for the first radiation stub by using the first feed point.

Abstract: This application provides a video recording setting method. The method includes: displaying, by the electronic device, a first video picture, a second video picture, and a first control; displaying, by the electronic device, a second control, a third control, and a fourth control in response to a first user operation performed on the first control, where the second control is displayed in a selected state, and the third control is displayed in an unselected state; stopping displaying, by the electronic device, the first video picture in response to a third user operation; and displaying, by the electronic device, the second control, the third control, and a fifth control in response to a fourth user operation performed on the first control, where the second control is displayed in an unselected state, and the third control is displayed in a selected state.

Abstract: Transmitting information to an electronic device when a stylus has no Bluetooth module is disclosed. A first electrode sends N first signals corresponding to N sending moments based on a refresh rate, and N is an integer?1. A second electrode sends M second signals corresponding to M sending moments based on a pressure sensing value detected by the stylus or a type of an operation performed by a user on the stylus. The M sending moments overlap some or all of the N sending moments, and M is an integer?N. The electronic device receives the first and second signals, and obtains target coding data based on the first value and/or the second value recorded at the N moments, where the target coding data is used to represent the pressure sensing value or the type of the operation performed by the user on the stylus.

Abstract: A method includes: displaying a first interface, where the first interface includes a first thumbnail of first video data, and the first video data includes a first transition special effect, and the first transition special effect is superimposed on a plurality of consecutive first video frames in the first video data; receiving a first operation performed by a user on the first thumbnail; displaying a second interface in response to the first operation, where the second interface includes a one-click blockbuster control; displaying a third interface after a second operation performed by the user on the one-click blockbuster control is received, where the third interface is used to display second video data.

Abstract: This application discloses a message push method and an apparatus. The method includes: receiving, by a first terminal, a first notification message and pushing the first notification message to a second terminal, when the first terminal and the second terminal are having a communication connection successfully established; receiving, by the first terminal, a second notification message and storing the second notification message into a storage area, when the first terminal and the second terminal are communicatively disconnected; and pushing, by the first terminal to the second terminal, a notification message stored in a storage area, when the first terminal and the second terminal recover from being communicatively disconnected to having a communication connection successfully established.

Abstract: Embodiments of this application provide an audio processing method and apparatus. The method includes: A terminal device displays a first interface; when the terminal device receives an operation on a control for enabling recording, the terminal device displays a second interface and obtains a first audio signal; the terminal device performs sound source separation on the first audio signal to obtain N channels of audio signals, where N is an integer greater than or equal to 2; and the terminal device generates a first video and a second video, where when the N channels of audio signals satisfy a preset condition, the second video is obtained based on the N channels of audio signals and a second picture, and a target audio signal is an audio signal of a target object.