Rotary input device
First Claim
1. An input device comprising:
- a plurality of electrodes arranged in a circumferential direction at equal intervals and having a predetermined area;
an insulating sheet laminated on surfaces of the respective electrodes; and
capacitance detecting means for detecting a variation of capacitance from the respective electrodes when a human body is adjacent to or in contact with an external surface of the insulating sheet.
1 Assignment
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Accused Products
Abstract
A thin input device is disclosed that is capable of simultaneously inputting rotational information and switching information. If a part of the human body H is rotated around a plurality of operating portions capacitance C is generated between the human body H and the respective electrodes, which are opposite to the human body H, in sequence. Therefore, a variation of the capacitance C corresponding to the respective operating portions is detected so as to obtain information on the rotational operation. In addition, if the operating portions are simultaneously tapped, the capacitances C of the electrodes are varied in sequence. Thus, simultaneous contact with the operating portions can be detected by detecting the variation of capacitance C.
24 Citations
10 Claims
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1. An input device comprising:
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a plurality of electrodes arranged in a circumferential direction at equal intervals and having a predetermined area;
an insulating sheet laminated on surfaces of the respective electrodes; and
capacitance detecting means for detecting a variation of capacitance from the respective electrodes when a human body is adjacent to or in contact with an external surface of the insulating sheet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification