Semiconductor Components Industries, LLC

Beijing Xiaomi Mobile Software Co., Ltd.

Fairchild Semiconductor Corporation

Jianli Chen

WeiMing Sun

Lei Huang

Qi Wang

Emma Wang

The present disclosure relates to an electronic device. including a first motor, a second motor, a touch sensor, a pressure sensor, a processor, and a switching circuit. The pressure sensor is connected to the processor and is configured to generate a pressure value when sensing a pressing operation, and output the pressure value to the processor. The processor is connected to the switching circuit, and is configured to generate a trigger signal when the pressure value exceeds a set pressure threshold, and output the trigger signal to the switching circuit. The touch sensor is configured to sense position data of the pressing operation and output the position data to the switching circuit. The switching circuit is connected to the first motor and the second motor, respectively, and is configured to select the first motor or the second motor to vibrate according to the trigger signal and the position data.

Electronic device

A method for identifying electronic device is applied to a terminal device and includes: sending, in response to receiving a power-on signal of the electronic device, a detection signal to the electronic device; acquiring waveform information of the detection signal; and determining a type of the electronic device according to the waveform information.

Method and apparatus for identifying electronic device, terminal device, and electronic device

In a general aspect, a discharge circuit for discharging a voltage from a USB connector pin can include a discharge load configured to discharge the voltage from the pin. The discharge circuit can also include a first control circuit configured to adjust a magnitude of the discharge load during discharging, such that power consumption is less than or equal to a discharge power limit, and a discharge time is less than or equal to a discharge time limit. The discharge circuit can further include a second control circuit configured to detect whether the voltage of the pin is changed based on a first reference voltage during discharging and adjust the magnitude of the discharge load in response to the change in the voltage of the pin, such that a slew rate of the voltage is less than or equal to a slew rate limit.

Discharge method and circuit for USB connector

This document discusses, among other things, a discharge circuit for a USB connector configured to discharge a voltage of a pin (e.g., a VBUS pin) of the USB connector. The discharge circuit can include a discharge load to discharge the voltage of the pin; a first control circuit to adjust the magnitude of the discharge load during discharging, such that power consumption generated by the discharge load meets a first preset condition and a discharge time is within a first preset range, the first preset condition indicating that the generated power consumption does not trigger Over Temperature Protection (OTP); and a second control circuit to detect whether the voltage of the pin is changed based on a reference voltage during discharging and adjust the magnitude of the discharge load in response to the change, such that a slew rate of the voltage of the first pin is within a second preset range.

Systems and methods are disclosed, including a USB interface detector, a detection method, a USB connector, and an electronic device. The detection method may be applicable to the USB connector mounted in the electronic device. According to an operation mode of the electronic device, a first pin and a second pin in the USB interface can be pulled up or pulled down. After the pull up or the pull down, a voltage change at the first and second pins are detected. If the voltage changes cross a reference voltage, an instruction related to attachment or detachment with a second device can be provided.

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Beijing, China

Jianli Chen