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US 2009/0021241 A1Published application
Method for measuring velocity of conductor pressing on capacitive sensor
AssigneeGeneralplus Technology Inc.
InventorsTung-Tsai Liao, Li Sheng Lo
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Abstract
A method for measuring a velocity of a conductor pressing on a capacitive sensor. The method includes: sampling a capacitance of a sensing electrode at each preset time; providing a threshold value; and determining the velocity of the conductor pressing on the capacitive sensor according to a specific period, wherein the specific period is defined as a period of time ranging from the time when the capacitance reaches the threshold value to the time when the capacitance reaches a peak value.
Claims5
A method for measuring a velocity of a conductor pressing on a capacitive sensor, the method comprising:
- sampling a value of a capacitance of a sensing electrode at each preset time;
- defining a threshold value;
- and
- determining, when the value of the capacitance reaches a peak value or a stable value, the velocity of the conductor pressing on the capacitive sensor according to a period from the time when the value of the capacitance reaches the threshold value to the time when the value of the capacitance reaches the peak value or the stable value.
1 more element
Dependencies are inferred from the claim text.