Switch state detection circuit and switch system
AssigneeRohm Co., Ltd.
InventorsTomoki Yamamoto, Hideki Matsubara, Satoru Kominami
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Abstract
A switch state detection circuit according to the present invention comprises: a plurality of switch connection portions to each of which a switch is connected, a connection line to which any one of the switch connection portions is connected in a switchable manner, a detection portion that detects a state of the switch connected to the connection line based on a state of the connection line, and a connection control portion that switches successively each of the switch connection portions and connects it to the connection line, wherein the state of each switch is detected.
Claims13
A switch state detection circuit comprising:
- a plurality of switch connection portions to each of which a switch is connected,
- a connection line to which any one of the switch connection portions is connected in a switchable manner,
- a detection portion that detects a state of the switch connected to the connection line based on a state of the connection line, and
- a connection control portion that switches successively each of the switch connection portions and connects it to the connection line, wherein
- the state of each switch is detected.
Dependencies are inferred from the claim text.