Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1985-01-31
1987-06-02
Brigance, Gerald L.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340706, 340365P, 178 18, 74471XY, G09G 100
Patent
active
046707433
ABSTRACT:
A cursor controller has a handle having first and second perpendicular slots disposed in different parallel planes. A first cross-slide is slidably mounted in the first slot and guides the motion of the handle along an x axis. A second cross-slide is slidably mounted in the second slot and guides the motion of the handle along a y axis. A first encoder strip mounted to the first cross-slide is provided together with a quadrature detector for sensing the direction and magnitude of movement of the handle along the y axis. A second encoder strip mounted to the second cross-slide is provided together with a quadrature detector for sensing the direction and magnitude of movement of the handle along the x axis. Signals from the quadrature detectors are processed and coupled to a computer to provide cursor control on the computer's display screen. An end of travel reset feature restricts movement of the cursor when the handle reaches the end of its travel along an axis, until the handle is withdrawn and once again moved toward the same end of travel position.
REFERENCES:
patent: 1901673 (1933-03-01), Sleeper
patent: 3266523 (1966-08-01), Stevens
patent: 3541521 (1970-11-01), Koster
patent: 3541541 (1970-11-01), Engelbart
patent: 3665102 (1972-05-01), Townsend et al.
patent: 3668685 (1972-06-01), Horvath
patent: 3786689 (1974-01-01), Houk
patent: 4161726 (1979-07-01), Burson et al.
patent: 4459578 (1984-07-01), Sava et al.
patent: 4464652 (1984-08-01), Lapson et al.
patent: 4521773 (1985-06-01), Lyon
patent: 4529964 (1985-07-01), Minami et al.
patent: 4550221 (1985-10-01), Mabusth
patent: 4575581 (1986-03-01), Langberg
Optoelectronic Designer's Catalog 1983, Hewlett Packard Components, 640 Page Mill Road, Palo Alto, CA 94304, p. 195.
Brigance Gerald L.
Cordell Ruffin B.
General Instrument Corporation
Lipsitz Barry R.
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