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US 12,738,939 B2Granted
Input device
AssigneeAlps Alpine Co., Ltd.
InventorsTomoki Yamada, Makoto Abe, Toshiki Nakamura
Life of this patent
Estimating the term…
Abstract
An input device includes: a light-emitting diode; a switching element connected in series with the light-emitting diode, the switching element switching the light-emitting diode between the on and off states; an electrostatic sensor having a detection electrode capacitively coupled to a circuit portion disposed between the light-emitting diode and the switching element; and a capacitor having a first terminal connected to the circuit portion and a second terminal connected to a fixed potential point.
Claims5
An input device comprising:
- a light-emitting diode;
- a switching element connected in series with the light-emitting diode, the switching element switching the light-emitting diode between on and off states;
- a circuit portion connected in series between the light-emitting diode and the switching element;
- an electrostatic sensor having a detection electrode capacitively coupled to the circuit portion;
- and
- a capacitor having a first terminal connected to the circuit portion and a second terminal connected to a fixed potential point.
3 more elements
Dependencies are inferred from the claim text.