To provide a key switch which can be easily configured and allow an authentication operation to be easily performed.
In the key switch, a switch body 1 includes: a roughly cylindrical housing 5 which has an upper surface 5A where a key insertion hole 6 to insert a key 2 is formed, and contains a printed board 11 loaded with an optical sensor 15 and a microcomputer 12; and a case 20 fitted to an opening 5B at the lower part of the housing 5. The key 2 has an intrinsic information pattern 3 configured by arranging elements of the same or different shape for an arbitrary number and at an arbitrary interval, and the key 2 is authenticated by detecting the information pattern 3 by the optical sensor 15 accompanying the inserting operation or inserting and removing operation of the key 2 and comparing it with an authentication pattern stored in the microcomputer 12.
| JP5162566 | Outboard motor anti-theft device |
| JPS60138181 | ELECTRIC LOCK APPARATUS |
| JP2021177591 | COMMUNICATION MANAGEMENT DEVICE |
NAMEKATA KATSUTOSHI
KAWAMURA HITOSHI
KITAYA KO
| JP2004257138A | 2004-09-16 | |||
| JP2009270430A | 2009-11-19 | |||
| JP2002021382A | 2002-01-23 | |||
| JPS6471978A | 1989-03-16 | |||
| JP2009036016A | 2009-02-19 | |||
| JP2008545913A | 2008-12-18 | |||
| JPS6433135U | 1989-03-01 |
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