Electronic device for adjusting parameter for driving of grip sensor and method thereof
An electronic device includes a grip sensor which detects a grip on the electronic device, and a communication circuitry operably coupled to the grip sensor. The grip sensor is configured to transmit a signal indicating whether the grip is detected, to the communication circuitry in a first state for detecting the grip, based on a capacitance changed by the grip and a reference capacitance. The grip sensor is configured to adjust the reference capacitance based on the capacitance in a second state, which is different from the first state, for adjusting the reference capacitance. The grip sensor is configured to adjust the reference capacitance to be lower than a preset threshold, based on identifying that the reference capacitance is adjusted to be greater than or equal to the preset threshold.
1. An electronic device, comprising,
a grip sensor which detects a grip on the electronic device; and
a communication circuitry operably coupled to the grip sensor,
wherein the grip sensor is configured to:
transmit, to the communication circuitry in a first state for detecting the grip, a signal indicating whether the grip is detected, based on a capacitance changed by the grip and a reference capacitance;
adjust, in a second state, which is different from the first state, for adjusting the reference capacitance, the reference capacitance based on the capacitance; and
adjust, based on identifying that the reference capacitance is adjusted to be greater than or equal to a preset threshold, the reference capacitance to be lower than the preset threshold.
2. The electronic device of claim 1 , wherein the grip sensor is configured to:
adjust, based on identifying that the reference capacitance is adjusted to be greater than or equal to the preset threshold, the reference capacitance based on the reference capacitance in a time point when a state of the grip sensor is changed to the second state.
3. The electronic device of claim 1 , wherein the grip sensor is configured to:
adjust, based on identifying the capacitance having a maximum value lower than the preset threshold, the reference capacitance based on a preset range lower than the preset threshold.
4. The electronic device of claim 1 , further comprising a temperature sensor, and wherein the grip sensor is configured to adjust the reference capacitance based on a temperature detected by the temperature sensor.
5. The electronic device of claim 4 , wherein the grip sensor is configured to:
adjust, based on identifying that the reference capacitance is adjusted to be greater than or equal to the preset threshold, the reference capacitance based on the temperature and a reference capacitance in a time point when a state of the grip sensor is changed to the second state.
6. The electronic device of claim 1 , wherein the grip sensor is configured to:
change from the first state to the second state based on a preset period.
7. The electronic device of claim 1 , wherein the grip sensor is configured to:
change, after adjusting the reference capacitance to be lower than the preset threshold in the second state, to the first state from the second state.
8. The electronic device of claim 1 , wherein the grip sensor is configured to:
transmit, based on identifying the capacitance greater than the reference capacitance in the first state, the signal indicating that the grip is detected; and
transmit, based on identifying the capacitance matched to the reference capacitance, the signal indicating that a release of the grip is detected.
9. The electronic device of claim 8 , further comprising an antenna, and wherein the communication circuitry is configured to:
adjust, based on the signal transmitted from the grip sensor, a strength of a wireless signal emitted from the antenna.
10. The electronic device of claim 8 , wherein the grip sensor is configured to:
detect, based on a difference between the capacitance and the reference capacitance, the grip or the release of the grip.
11. A method for controlling a grip sensor in an electronic device, the method comprising:
detecting, in a first state for detecting a grip on the electronic device, the grip based on a capacitance adjusted by the grip and a reference capacitance;
adjusting, in a second state, which is different from the first state, for adjusting the reference capacitance and is different from the first state, the reference capacitance based on the capacitance; and
adjusting, based on identifying that the reference capacitance is adjusted to be greater than or equal to a preset threshold, the reference capacitance to be lower than the preset threshold.
12. The method of claim 11 , wherein the adjusting the reference capacitance to be lower than the preset threshold further comprising:
adjusting, based on the reference capacitance in a time point when a state of the grip sensor is changed to the second state, the reference capacitance.
13. The method of claim 11 , further comprising:
adjusting, based on identifying that the capacitance has a maximum value lower than the preset threshold in the second state, the reference capacitance based on a preset range lower than the preset threshold.
14. The method of claim 11 , further comprising:
adjusting the reference capacitance based on a temperature detected by a temperature sensor in the electronic device.
15. The method of claim 11 , further comprising:
changing a state of the grip sensor from the first state to the second state based on a preset period.
16. The method of claim 11 , wherein the adjusting the reference capacitance to be lower than the preset threshold further comprising:
changing, after adjusting the reference capacitance to be lower than the preset threshold, a state of the grip sensor to the first state from the second state.
17. The method of claim 11 , wherein the detecting the grip comprising:
detecting the grip based on identifying that the capacitance is greater than the reference capacitance; and
detecting a release of the grip based on identifying that the capacitance matches the reference capacitance.
18. An electronic device, comprising:
a grip sensor which detects a grip on the electronic device;
an antenna; and
a communication circuitry which adjusts a strength of a wireless signal transmit by the antenna based on the grip detected by the grip sensor;
wherein the grip sensor is configured to:
detect the grip by comparing a capacitance changed by an external object different from the electronic device to a reference capacitance adjusted based on a preset period;
adjust, while adjusting the reference capacitance based on the preset period, the reference capacitance based on the capacitance in a preset range associated with the reference capacitance.
19. The electronic device of claim 18 , wherein the grip sensor is configured to:
increase, based on identifying that the capacitance is increased, the reference capacitance based on an increased capacitance; and
stop increasing the reference capacitance based on identifying that the reference capacitance is increased to be greater than the preset range.
20. The electronic device of claim 18 , wherein the grip sensor is configured to:
adjust the reference capacitance based on at least one of a preset threshold or a temperature.