Multipurpose cursor control keyswitch

Details Multipurpose cursor control keyswitch Multipurpose cursor control keyswitch

1986-04-18

1987-07-14

Caldwell, Sr., John W.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340709, 340706, 400485, H01H 2500

Patent

active

046805770

ABSTRACT:
A multipurpose keyswitch for controlling cursor movement on a CRT display and for character entry includes a key cap that moves laterally to provide cursor control and that moves vertically for character entry. Sensors are coupled to the key cap for sensing the lateral movement of the key cap. Forward and backward movement of the key cap selects upward and downward movement of the cursor on the CRT display. Left and right movement of the key cap selects left and right movement of the cursor. Vertical movement of the key cap selects the entry of a character. The multipurpose keyswitch is advantageously positioned as one of the home keys of the keyboard.

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IBM Technical Disclosure Bulletin: "Single Key Cursor Control", R. W. Truelson, vol. 26, No. 7B, Dec. 1983-pp. 3746, 3747.
IBM Technical Disclosure Bulletin: "Smart Key", vol. 28, No. 5, Oct. 1985, pp. 1859, 1860.

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