Touch activated controller and method

Details Touch activated controller and method Touch activated controller and method

1980-03-17

1982-03-23

Gellner, Michael L.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

307308, 307356, H01H 3500

Patent

active

043214797

ABSTRACT:
A touch activated controller generates UP/DOWN control signals in response to movement of a human finger (or other comparable contact) along a control surface thereof. The UP information is derived from movement of the finger in one direction and the DOWN information is derived from movement in a substantially opposite direction. This system generates a sequence of control signals in one or the other of the two directions. In addition, when the finger is removed from the device the output remains in its last previous state or condition existing before removing the finger. Thus, the logic of the system is sensitive substantially to motion and direction of movement so that the logic of the operation of the device closely resembles the motion of a thumbwheel control. Merely placing a finger on the surface of thumbwheel or on the surface of the disclosed device generates no change in the position of the thumbwheel or the output of the device herein. When a finger is moved in one direction while in contact with the control surface of the device or the thumbwheel the output of the device will generate control signals counting up or down depending on the direction of movement of the finger.

REFERENCES:
patent: 3727143 (1973-04-01), Garrett
patent: 3916328 (1975-10-01), Wilson

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