Abstract: Provided are a data communication method and system, an electronic device, a chip and a storage medium. The data communication method includes: establishing a wireless communication connection with a first receiving terminal, and notifying the connection information to a second receiving terminal. The connection information includes information of a communication channel for performing wireless communication between the transmitting terminal and the first receiving terminal. The connection information is used to instruct the at least one second receiving terminal to monitor communication data in the communication channel. When the at least one second receiving terminal knows after monitoring the communication data, data required to be transmitted to the first receiving terminal is transmitted to the communication channel.

Abstract: Embodiments of the present disclosure provide a wireless debugger and a wireless debugging system. The wireless debugger includes: a processor, a wireless communication module, and a first peripheral interface; the processor is electrically connected to the wireless communication module and the first peripheral interface, respectively; the processor, is configured to receive debugging instructions through the wireless communication module, and the debugging instructions are used to instruct debugging/stop debugging a target board; the processor, is further configured to parse the debugging instructions and convert the parsed debugging instructions so that the debugging instructions are adapted to a protocol of the first peripheral interface; and the processor, is further configured to transmit the converted debugging instructions to the to-be-debugged target board through the first peripheral interface. Debugging control is convenient and reliable.

Abstract: A pressure detection module and an electronic device are provided. The pressure detection module is disposed between a support and an inner surface of a housing of the electronic device. The pressure detection module includes a first electrode, a second electrode, and a controller. The first electrode is fixed to an inner surface of a force input region of the housing, the second electrode is fixed to the support, and the second electrode is disposed opposite to the first electrode. The force input region of the housing is configured to drive the first electrode to move towards the second electrode based on a received external pressure. The controller is configured to determine a pressure detection result of the external pressure based on a capacitance change between the first electrode and the second electrode. The pressure detection module occupies small space in the electronic device, and is easy to mount.

Abstract: Techniques are described for disparity-preserving pixel binning during consistently binned parallel readout of an imaging sensor array having both phase detection autofocus (PDAF) pixels and imaging pixels. Each group of PDAF pixels and each group of imaging pixels is coupled with pixel actuators according to an particular arrangement, so that consistently applied control of the pixel actuators results in desired binning of both the PDAF pixels and the imaging pixels. According to some implementations, though such control of the pixel actuators is consistently applied across the pixels of the array, parallel readout of the sensor array yields diagonally binned imaging pixels, but vertically binned PDAF pixels to preserve horizontal PDAF disparity information. Additionally or alternatively, disparity-inducing structures are configured to position same-disparity PDAF pixels so that consistently applied control of the pixel actuators preserves disparity information during binning.

Abstract: A transceiver is disclosed. The transceiver accesses a CFO (carrier frequency offset) estimate, and, for each of one or more working frequencies: transmits a transmitter RF signal at each working frequency, receives a receiver RF signal at each working frequency, and generates first I/Q measurement data based at least in part on the received receiver RF signal and the CFO estimate. In some embodiments, the transceiver receives I/Q measurement information for each working frequency. In some embodiments, the transceiver generates second I/Q measurement data based at least in part on the received I/Q measurement information. In some embodiments, the transceiver estimates a distance between the antenna and an antenna of another device based at least in part on the first and second I/Q measurement data.

Abstract: The present application discloses a flow speed detection circuit and a related chip and flow meter. The flow speed detection circuit includes: a transmitter, configured to provide a front signal and a main signal to a first transducer, wherein the first transducer transforms the front signal and the main signal into a transduced signal to a second transducer, the second transducer transforms the transduced signal into a receiving front signal and a receiving main signal to a receiver; and the receiver includes: a front signal detection circuit, configured to enable the main signal processing circuit after the receiving front signal; and the main signal processing circuit, configured to determine the flow speed based on the receiving main signal after being enabled.

Abstract: Provided are an optical image capturing unit and an electronic device. The optical image capturing unit includes: an optical converging device; a diaphragm disposed on a back focal plane of the optical converging device, where the diaphragm is provided with a window; and a photosensing unit disposed under the diaphragm, where the optical converging device is configured to converge an optical signal within a specific incident angle range to the window, and the optical signal is transmitted to the photosensing unit via the window.

Abstract: A capacitive fingerprint identification apparatus, a preparation method and an electronic device can improve the performance of a capacitive fingerprint apparatus and the users' using experience. The capacitive fingerprint identification apparatus is configured to be provided on an arc-shaped surface of the electronic device, including: a capacitive fingerprint identification package structure; an arc surface structure, including a first surface and a second surface, where the first surface of the arc surface structure is a plane, the second surface of the arc surface structure is an arc surface. Setting the arc surface structure on the capacitive fingerprint identification apparatus can not only make itself and the electronic device where it is located more aesthetical in appearance and have a more three-dimensional sense, but also protect the electronic device when the electronic device is dropped, so the influence on the capacitive fingerprint identification apparatus is small.

Abstract: The fingerprint-based login method includes: waking up an operating system of a terminal device where a fingerprint sensor is disposed based on a detected non-press-type touch operation against the fingerprint sensor; controlling the fingerprint sensor to acquire fingerprint data based on a fingerprint data acquisition instruction sent by the waken-up operating system; storing the acquired fingerprint data to a designated security region in the terminal device by the waken-up operating system; and judging whether the fingerprint data stored in the designated security region matches fingerprint password data by the waken-up operating system upon detecting a press-type touch operation against the fingerprint sensor, such that a login operation is performed in the operating system if the stored fingerprint data matches the fingerprint password data, the problem that the fingerprint modules using the conventional MCUs failing to satisfy the requirements may not implement the system login function is effectively s

Abstract: A signal conversion circuit, a heart rate sensor, and an electronic device are provided, and the signal conversion circuit includes: a photoelectric conversion circuit, configured to convert an optical signal into a current signal; a differential signal conversion circuit, connected to the photoelectric conversion circuit, and configured to convert the current signal into a first differential signal and a second differential signal, where the first differential signal is an integration signal of the current signal in a first phase, and the second differential signal is an integration signal of the current signal in a second phase; and a subtraction amplifier, connected to the differential signal conversion circuit, and configured to amplify a difference value between the first differential signal and the second differential signal, to generate a third differential signal. The signal conversion circuit of embodiments of the present disclosure can effectively suppress ambient interference.

Abstract: The present invention provides an image sensing system (10), including a first pixel circuit (120), wherein the first pixel circuit includes a photosensitive device (PD); a first transmission gate (TG1), under the control of a first transmission signal and conducted during a first conduction time interval; and a collection gate (CG), coupled between the photosensitive device and the transmission gate and configured to receive a collecting signal (CX); and a control unit (14), configured to generate the collecting signal to the collection gate, wherein the collecting signal has a non-fixed voltage value.

Abstract: Provided are an under-screen biometric identification apparatus and an electronic device. The under-screen biometric identification apparatus includes: a lens disposed under a display screen for receiving an optical signal formed by reflection of a human finger on the display screen, where the optical signal is used to detect biometric information of the finger; a lens barrel, where the lens is fixed in the lens barrel; and a support, where the support is connected to the lens barrel by means of threaded connection for supporting the lens barrel. An under-screen biometric identification apparatus and an electronic device provided in embodiments of the present application can improve the efficiency of under-screen biometric identification.

Abstract: A fingerprint identification method, includes: collecting a first fingerprint image according to a sampling parameter; determining a collection environment of the first fingerprint image according to the first fingerprint image and a pre-stored reference image, wherein the reference image is a fingerprint image obtained under a reference light environment; processing the first fingerprint image according to a processing parameter corresponding to the collection environment; and performing fingerprint identification according to the processed first fingerprint image. By pre-storing the reference image, the present application can quickly judge the collection environment of the fingerprint by collecting only one fingerprint image, which saves time for collecting the fingerprint image and judging the collection environment, and improves the identification efficiency of the fingerprint effectively.

Abstract: A test system is provided. The system includes a first test apparatus and a second test apparatus. A device power supply of the first test apparatus (ATE) is electrically connected with a device under test (DUT) through a driving branch (F) and a detecting branch (S), the driving branch (F) being configured to provide an original driving current to the DUT b the device power supply during testing, and the detecting branch (S) being configured to detect an effective driving current reaching the DUT. The second test apparatus includes a first voltage drop branch, the first voltage drop branch is connected to the detecting branch (S), and a voltage drop detected by the driving branch (F) is used to determine an effectiveness of an electrical connection formed between the driving branch and the device under test, and an electrical connection formed between the detecting branch (S) and the DUT.

Abstract: The application discloses a time-of-flight generating circuit, coupled to a first transducer and a second transducer, wherein there is a distance greater than zero between the first transducer and the second transducer, and a fluid having a flow speed flows sequentially through the first transducer and the second transducer, wherein the time-of-flight generating circuit includes: a transmitter, coupled to the first transducer; a receiver, coupled to the second transducer; a signal processing circuit, coupled to the transmitter and the receiver; and a correlation circuit, a measuring circuit and a transformation circuit, coupled to the signal processing circuit. The application also discloses a chip, flow meter, and method of the same.

Abstract: Disclosed are a crystal oscillator, a chip, and an electronic device. The crystal oscillator includes: an oscillating circuit, including: a crystal, an amplification circuit, a first load capacitor, and a second load capacitor, where the first load capacitor and the second load capacitor are respectively connected to a first terminal and a second terminal of the crystal; and a first Miller multiplication circuit, where an input terminal and an output terminal of the first Miller multiplication circuit are respectively connected to two terminals of the first load capacitor, and the first Miller multiplication circuit is configured to increase a first load capacitance of the oscillating circuit, where the first load capacitance is a capacitance between the first terminal of the crystal and the ground. According to this technical solution, an area occupied by the load capacitor as well as circuit costs can be reduced.

Abstract: Techniques are described for implementing read-out architectures to support high-speed serialized read-out of a large number of digital bit values, such as for high-resolution pixel conversions in CMOS image sensor applications. For example, outputs from a large number of digital data sources (e.g., counters) are coupled with transmission gates of the read-out architecture, and the transmission gates are sequentially enabled, thereby shifting in bit data from the data sources one at a time. The transmission gates are grouped into gate groups. For each gate group, embodiments seek balance total path delay across the gate groups by controlling clock and data path delays to be inversely related, and ensuring that total path delays for all gate groups are within a single clock period. Some embodiments include a partitioned bus for further gate group-level control over the path delay and data bus capacitance.

Abstract: A receiver is disclosed. The receiver includes one or more antennas receiving signals from a transmitter including one or more antennas, and at least one RF chain generating digital samples based on the received signals. Either A) the signals are transmitted by a single antenna of the transmitter and are received by multiple antennas of the receiver, or B) the signals are transmitted by multiple antennas of the transmitter and are received by a single antenna of the receiver. The receiver also includes a controller determining a plurality of groups of digital samples to use for calculating estimates of an AoA or AoD of the received signals, calculate estimates of AoA or AoD based on the groups of digital samples, select a subset of the estimates, and calculate a measured AoA or AoD based on the selected subset of estimates.

Abstract: Provided is a capacitance detection circuit, which has better detection performance. The capacitance detection circuit includes: a first charging and discharging circuit configured to perform charging or discharging on a capacitor to be detected; a second charging and discharging circuit configured to perform charging or discharging on a calibration capacitor; an analog-to-digital conversion circuit configured to continuously sample a voltage difference between the capacitor to be detected and the calibration capacitor in a charging or discharging process to obtain sampled data; and a digital processing circuit configured to detect a capacitance of the capacitor to be detected according to the sampled data.

Abstract: Provided are a fingerprint identification device, a fingerprint identification method and an electronic device, which could improve security of fingerprint identification. The fingerprint identification device includes an optical fingerprint sensor including a plurality of pixel units; at least two filter units disposed above at least two of the plurality of pixel units, where each filter unit corresponds to one pixel unit, and the at least two filter units comprise filter units in at least two colors.