Abstract: A method for determining a capacitance reference, an apparatus for determining a capacitance reference, and a device are provided. The method is applied to a device with double-layer capacitive sensors, and the method comprises: obtaining a first differential capacitance value of the double-layer capacitive sensors, the first differential capacitance value being a minimum differential capacitance value obtained when the device is out of a box, and the box being a matching device paired with the device and used to receive the device; and determining a latest differential capacitance reference value according to the first differential capacitance value and a differential capacitance reference value. By tracking and updating the differential capacitance reference value, a more accurate capacitance reference is provided to ensure the accuracy of capacitance change detection, and then to ensure the accuracy of detection on the behavior state of the device.

Abstract: Embodiments of the present disclosure provide a method and apparatus for determining a pressure reference value, and a chip and an electronic device. The method includes: consecutively acquiring N pressure signals by a pressure sensor; acquiring consecutive N pressure values on the basis of the N pressure signals; and determining a latest pressure reference value on the basis of the consecutive N pressure values and time characteristics of the consecutively acquired N pressure signals; wherein each of the pressure values is a difference between a sampling value corresponding to a pressure signal and the pressure reference value, and the consecutively acquired N pressure signals are acquired within a duration where a pressure is applied to the pressure sensor once, N being a positive integer greater than 0.

Abstract: A method for determining a capacitance reference, an apparatus for determining a capacitance reference, and a device are provided. The method is applied to a device with double-layer capacitive sensors, and the method comprises: obtaining a first differential capacitance value of the double-layer capacitive sensors, the first differential capacitance value being a minimum differential capacitance value obtained when the device is out of a box, and the box being a matching device paired with the device and used to receive the device; and determining a latest differential capacitance reference value according to the first differential capacitance value and a differential capacitance reference value. By tracking and updating the differential capacitance reference value, a more accurate capacitance reference is provided to ensure the accuracy of capacitance change detection, and then to ensure the accuracy of detection on the behavior state of the device.

Abstract: A capacitive touch device and a gesture recognition method thereof, a chip and a storage medium are provided. In some embodiments, the gesture recognition method includes: sampling a capacitance of a capacitive sensor in the capacitive touch device to acquire a capacitance sampling value corresponding to a current sampling frame; determining a first capacitance value of an interference capacitance caused by a liquid on the capacitive sensor according to the capacitance sampling value and reference information corresponding to the current sampling frame; determining a touch state of the capacitive sensor represented by the current sampling frame according to the capacitance sampling value and the first capacitance value of the interference capacitance corresponding to the current sampling frame; and recognizing a gesture of a user on the capacitive touch device according to timing information of the touch state represented by the current sampling frame and a historical touch state of the capacitive sensor.

Abstract: A capacitive touch device and a gesture recognition method thereof, a chip and a storage medium are provided. In some embodiments, the gesture recognition method includes: sampling a capacitance of a capacitive sensor in the capacitive touch device to acquire a capacitance sampling value corresponding to a current sampling frame; determining a first capacitance value of an interference capacitance caused by a liquid on the capacitive sensor according to the capacitance sampling value and reference information corresponding to the current sampling frame; determining a touch state of the capacitive sensor represented by the current sampling frame according to the capacitance sampling value and the first capacitance value of the interference capacitance corresponding to the current sampling frame; and recognizing a gesture of a user on the capacitive touch device according to timing information of the touch state represented by the current sampling frame and a historical touch state of the capacitive sensor.

Abstract: Provided are a wearing detection method and apparatus, a wearable device and a storage medium. At least two positions of the wearable device are provided with sensors. The method includes: acquiring detection data of capacitive sensors at the at least two positions, obtaining linear combination data according to the detection data of the capacitive sensors at the at least two positions by using a pre-set relationship; and detecting a wearing state according to the linear combination data. According to the embodiments, the accuracy of wearing detection can be improved.

Abstract: A pressure detection chip and a method for detection pressure are disclosed. The method is executed by a pressure detection apparatus including a cancellation circuit and a coupling circuit in parallel; the coupling circuit includes a variable capacitance component having a first electrode layer and a second electrode layer. The method for detection pressure includes: inputting a first input signal to the cancellation circuit and outputting a first output signal; and inputting a second input signal to the coupling circuit and outputting a second input signal, where the first input signal and the second input signal are 180 degrees out of phase, and the first output signal is configured to cancel the second output signal; and determining whether the first electrode layer is subjected to the touch pressure, according to the first output signal and the second output signal.

Abstract: Provided are a wearing detection method and apparatus, a wearable device and a storage medium. At least two positions of the wearable device are provided with sensors. The method includes: acquiring detection data of capacitive sensors at the at least two positions, obtaining linear combination data according to the detection data of the capacitive sensors at the at least two positions by using a pre-set relationship; and detecting a wearing state according to the linear combination data. According to the embodiments, the accuracy of wearing detection can be improved.

Abstract: A pressure detection chip and a method for detection pressure are disclosed. The method is executed by a pressure detection apparatus including a cancellation circuit and a coupling circuit in parallel; the coupling circuit includes a variable capacitance component having a first electrode layer and a second electrode layer. The method for detection pressure includes: inputting a first input signal to the cancellation circuit and outputting a first output signal; and inputting a second input signal to the coupling circuit and outputting a second input signal, where the first input signal and the second input signal are 180 degrees out of phase, and the first output signal is configured to cancel the second output signal; and determining whether the first electrode layer is subjected to the touch pressure, according to the first output signal and the second output signal.

Abstract: A method for detecting an input device and a detection device. The method includes: acquiring (110) an electric field intensity of an electric field of a transmitting electrode of the input device at each of a plurality of detecting electrodes (810); determining (120) a gravity center position of the electric field and a center position of the electric field according the electric field intensity of the electric field of the transmitting electrode at each of the plurality of detecting electrodes (810); and determining (130) information regarding an attitude and/or a position of the input device according to the gravity center position of the electric field and the center position of the electric field. The method for detecting an input device and the detection device may reduce power consumption.

Abstract: A method for detecting an input device and a detection device. The method includes: acquiring (110) an electric field intensity of an electric field of a transmitting electrode of the input device at each of a plurality of detecting electrodes (810); determining (120) a gravity center position of the electric field and a center position of the electric field according the electric field intensity of the electric field of the transmitting electrode at each of the plurality of detecting electrodes (810); and determining (130) information regarding an attitude and/or a position of the input device according to the gravity center position of the electric field and the center position of the electric field. The method for detecting an input device and the detection device may reduce power consumption.