Huawei Technologies Co., Limited

Huawei Device Co., Ltd.

Tencent Technology (Shenzhen) Company Limited

Fudan University

Shanghai Huace Navigation Technology Ltd

Shanghai Tianyun Environmental Protection Technology Co., Ltd.

Zhejiang Tianqing Environmental Protection Technology Co., Ltd.

Jin Zhou

Xi Zhang

Bing Liu

Hang Li

Hailong Liu

Wei Zhang

Bin Hu

Chiaching Chu

Jianwei Fu

Chao Meng

Yifei Wang

Jiejun Wang

Chingyi Wang

Benyin Yuan

Yunzheng Zhou

Rui Song

Xili Ye

Dongguo Piao

A fingerprint unlocking method and a terminal are provided. The method may be applied to a terminal having an in-screen fingerprint detection function. When the terminal is in a screen-locked state, the terminal determines whether an operation of a user meets a preset condition. If the operation of the user meets the preset condition, a fingerprint recognition identifier is displayed on a touch display screen of the terminal. A display area of the fingerprint recognition identifier is an area in which fingerprint recognition can be performed. The method resolves a problem that the user cannot perform fingerprint unlocking because the user cannot see a position of a fingerprint detector.

Fingerprint unlocking method and terminal

An apparatus including processing circuitry and a data migration method are provided. The processing circuitry obtains configuration information including a source address of a source database and a target address of a target database. The processing circuitry establishes a migration channel between the source database and the target database based on the configuration information and sending a data migration request to the source database through the migration channel. The data migration request includes information of one or more data tables including data to be migrated from the source database to the target database and having a data table structure. The processing circuitry send, through the migration channel, the data in the one or more data tables and incremental data generated while the data is sent from the source database to the target database.

Data migration method, apparatus, and storage medium

A tilt measurement method for an RTK measuring receiver includes the following steps: step S1: fixing the bottom of a centering rod and performing a measurement after an inclination and shake; step S2: obtaining a measurement point sequence, a measurement point tilt sequence, a length of the centering rod, and a height of an antenna phase center based on the measurement; step S3: obtaining a positioning quality threshold and a geodetic coordinate of the to-be-measured point based on values obtained from the measurement; and step S4: determining whether the positioning quality threshold meets a requirement or not to decide whether to finish the measurement or not. In the method, the position of a to-be-measured point is calculated according to the position and the tilt angle of the antenna phase center of the receiver, and the length of the centering rod etc. during multiple tilt measurements.

Tilt measurement method for RTK measuring receiver

The present disclosure discloses a terminal, a touch control unit, a touchscreen, a screen protector, and an operation detection apparatus and method, and pertains to the field of terminal control. The terminal includes a touchscreen, a controller connected to the touchscreen, and at least one touch control unit, where the touch control unit includes a detection electrode, an induction electrode, and a conducting wire connecting the detection electrode and the induction electrode. The detection electrode is located outside a touch area of the touchscreen, the induction electrode is located in the touch area of the touchscreen, and the induction electrode is coupled to at least one capacitance node on the touchscreen. An existing capacitance node on the touchscreen identifies a touch operation performed by a user on the detection electrode disposed outside the touchscreen, and the terminal is controlled according to the touch operation.

Terminal, touch control unit, touchscreen, screen protector, and operation detection apparatus and method

A system comprises a touchscreen, at least one touch control unit, a first controller, and a second controller, where the touch control unit includes a detection electrode, an induction electrode, and a conducting wire that connects the detection electrode and the induction electrode, where the detection electrode is located outside a touch control area of the touchscreen, the induction electrode is located in the touch control area of the touchscreen, and the induction electrode is coupled to at least one capacitance node in the touchscreen, and the first controller is separately connected to the touchscreen and the second controller. A touch control operation performed by a user on the detection electrode disposed outside the touchscreen is identified using an existing capacitance node in the touchscreen, and the terminal is controlled according to the touch control operation.

Terminal, and terminal control apparatus and method

The present invention provides a touch signal detection circuit. The touch signal detection circuit includes: a processing unit, at least one linear transmitting electrode, and at least two linear receiving electrodes; the transmitting electrode is perpendicular to the receiving electrode, the receiving electrode is perpendicular to a source driver line of a display screen, and each receiving electrode and each transmitting electrode form one node mutual capacitance; the processing unit acquires capacitance change values of at least two node mutual capacitances, and acquires a location of a touch signal according to the capacitance change values of the at least two node mutual capacitances.

Touch signal detection circuit and method, and touch device

A method for calibration of a capacitive touch screen and a capacitive touch apparatus are disclosed. The calibration method includes obtaining a temporary reference capacitance value of a touch detection point of the capacitive touch screen when the capacitive touch screen powers up. A first difference between a backup reference capacitance value of the touch detection point and the temporary reference capacitance value of the touch detection point is obtained and a reference capacitance value of the touch detection point is determined according to the first difference and a first preset threshold.

Method for calibration of capacitive touch screen and capacitive touch apparatus

The present invention belongs to the technical field of air sterilizing and purification and in particular relates to a plasma air sterilizing and purifying device and an air sterilizing and purifying method. The plasma air sterilizing and purifying device comprises a plasma reactor, a pulse power supply, a fan component, a control device, a power adaptor, and a housing case, wherein the reactor is provided with positive electrodes formed by several nickel-chromium alloy wires or nickel-chromium alloy belts, and the two ends of each positive electrodes are fixed in the corresponding grooves on the micro-discharge preventive conductor rail; and a pulse power supply has a digital control circuit with an oscillator, an error amplifier and a PWM comparator inside which converts signals into a digital control current to control the width of the high-voltage pulse.

Plasma sterilizing-purifying device and method for air sterilizing and purifying

The invention provides a dual-mode voltage-controlled oscillator (DMVCO), a frequency synthesizer and a wireless receiving device, and pertains to the technical field of integrated circuit of radio frequency wireless receiver. The DMVCO and the frequency synthesizer can operate in a wideband mode and a quadrature mode. When operating in the quadrature mode, a quadrature signal is provided for a Single Sideband Mixer of the frequency synthesizer by a quadrature coupling of a first voltage-controlled oscillator unit and a second voltage-controlled oscillator unit in the DMVCO in the overlapped frequency band so that the frequency synthesizer can cover a higher output frequency band. Therefore, the tuning range of the DMVCO of the invention is wide, and the frequency synthesizer using the DMVCO is low in power consumption, simple in structure and has good frequency spur performance.

Growing community of inventors

Shanghai, China

Jin Zhou