Electricity: motive power systems – Positional servo systems – Vehicular guidance systems with single axis control
Patent
1982-09-08
1986-04-22
Shoop, Jr., William M.
Electricity: motive power systems
Positional servo systems
Vehicular guidance systems with single axis control
318640, 250211K, 200157, 244234, G05D 108
Patent
active
045845107
ABSTRACT:
A two axis joystick controller (14) produces at least one output signal in relation to pivotal displacement of a member (32) with respect to an intersection of the two axes. The member (32) is pivotally movable on a support (42) with respect to the two axes. The support (42) has a centrally disposed aperture (46). A light source (34) is mounted on the pivotally movable member (32) above the aperture (46) to direct light (47) through the aperture. A light sensor (48) is mounted below the aperture (46) in the support (42) at the intersection of the two axes to receive the light (47) from the light source (34) directed through the aperture (46). The light sensor (48) produces at least one output signal related to a location on the sensor (48) at which the light (47) from the light source strikes the sensor (48). The two axis controller (14) is small enough in size to be mounted on another, hand-operated X-Y controller (10) for thumb operation by a hand positioned to operate the other X-Y controller (10). Knob (18) has a saddle shaped top (20) dimensioned to receive the thumb.
REFERENCES:
patent: Re24701 (1959-09-01), Redmond
patent: 2478923 (1949-08-01), Imre
patent: 3198922 (1965-08-01), Rohacs
patent: 3810047 (1974-05-01), Shragal
patent: 3814199 (1974-06-01), Jones
patent: 3931486 (1976-01-01), Raetz
patent: 3946225 (1976-03-01), Beeck
patent: 4026048 (1977-05-01), Hill
patent: 4250378 (1981-02-01), Mutton
patent: 4414438 (1983-11-01), Maier
patent: 4439648 (1984-03-01), Reiner
patent: 4445541 (1984-05-01), Schmiel
Brekke Darrell G.
Keane Patrick C.
Manning John R.
Marchant Robert D.
Shoop Jr. William M.
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