Shenzhen Goodix Technology Co., Ltd.

Haikuan Jiang

Wei Yang

Wingho Pang

Songsong Liu

An electronic device, a touch detection circuit and an update method for a reference value of a touch screen are provided. The update method includes: acquiring a temperature value of an environment of the touch screen; when determining that the acquired temperature value is less than a preset temperature threshold and determining that a continuously touched area exists in the touch screen, collecting N data frames of the continuously touched area; calculating N feature values of the N data frames; and updating N reference values corresponding to the N data frames according to the N feature values; wherein, N is greater than 1 and N is an integer. A difference between a reference value and a sensed value of the continuously touched area may not be decreased with a temperature rise due to the heat transferred by a touched object, thus point elimination at a low temperature is avoided.

Electronic device, touch detection circuit and update method for reference value of touch screen

The present application discloses a noise detecting method and apparatus, and an electronic device, the method includes: obtaining a noise of each sensing electrode of a plurality of sensing electrodes of a touch screen at a current operating frequency point during an operation of the touch screen; calculating a difference between the noise of the sensing electrode and a current noise reference of the sensing electrode to obtain a noise difference of the sensing electrode; performing differential processing on the noise differences of the sensing electrode and a noise difference of an adjacent sensing electrode of the sensing electrode, to obtain a first processing result comprising a plurality of values, and comparing a maximum value of the first processing result with a preset first threshold; if the maximum value is greater than the threshold, determining that there is noise interference at the current operating frequency point.

Noise detecting method and apparatus, electronic device, and computer readable storage medium

A method and apparatus for determining a reference value of a touch screen, and an electronic terminal thereof are provided. The method includes: determining a candidate reference value of a touch screen according to an original reference value and a reference fitting relationship of the touch screen, wherein the reference fitting relationship is determined according to the original reference value of the touch screen and a capacitance value of a capacitor node on the touch screen in a first frame; correcting the candidate reference value; and determining a stable reference value of the touch screen according to the corrected candidate reference value. According to embodiments of the present disclosure, the candidate reference value is closer to the actual capacitance reference, such that accuracy of the determined stable reference value is ensured as much as possible.

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Shenzhen, China

Haikuan Jiang