Multi-function switch

Details Multi-function switch Multi-function switch

1996-03-15

1997-12-16

Elms, Richard T.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

307112, 323294, 323368, 3242072, 338 32R, 338 32H, 335207, H01H 3502

Patent

active

056989091

ABSTRACT:
A multi-function switch includes a casing, a key top member, two magnets, two magnetic detectors and a micro-computer. The key top member is mounted on the casing to permit both liner movement and rotational movement in a plane parallel with a bottom face of the casing. The two magnets are arranged on the key top member to be apart from each other at a predetermined distance. The two magnetic detectors are arranged on the casing to face the magnets' respectively, at respective neutral positions in the liner movement and rotational movement. The micro-computer detects a ratio of respective voltages generated from the magnetic detectors and further processes the obtained ratio as a desired operational signal.

REFERENCES:
patent: 3596114 (1971-07-01), Maupin
patent: 4054861 (1977-10-01), Markison
patent: 4216458 (1980-08-01), Edwards
patent: 5159305 (1992-10-01), Hutchison
patent: 5373125 (1994-12-01), Ford et al.

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