Patent ID: 9581986
Date: 2017-02-28
CPC Classifications: G05B,G06F,H03M

Claim:
1. An input device providing control information to a host device, comprising: a first key coupled a first scan line and a first receiving line, a second key coupled a second scan line and the first receiving line, a third key coupled the first scan line and a second receiving line, and a fourth key coupled the second scan line and the second receiving line, wherein when one of the first to fourth keys is pressed by an object, the pressed one of the first to fourth keys generates a resistance value according to a force applied by the object; a division module including a first resistance element coupled between the first receiving line and a first level, and a second resistance coupled between the second receiving line and the first level, the division module receiving the resistance value and generating a voltage level according to the resistance value and the first level; and a control module generating the control information according to the voltage level of either one of the first and second receiving lines and providing the control information to the host device to execute a function according to the control information, wherein the first level is a ground level.