Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1983-08-19
1985-04-30
Brigance, Gerald L.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340706, 178 18, 310311, G09G 100
Patent
active
045147264
ABSTRACT:
A mouse comprises a cover and a displacement pad which is displaced upon movement of the mouse over a surface. Displacement transducer means, e.g., strain gauges mounted in a parallel arm linkage, are used to ascertain direction of motion. Noise created by sliding motion is monitored by a microphone, the output of which is a function of velocity and therefore distance. The microphone may be mounted to the displacement pad, and the pad and microphone covered with a friction and vibration enhancing medium, such as felt. The displacement pad may also be suspending in a computer terminal and be "stroked" to achieve displacement and noise. Calculating means produce cursor dot control signals based on displacement and noise.
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IBM Technical Disclosure Bulletin, "Cursor Positioning Device", M. Karnaugh, vol. 22, No. 7, Dec. 1979, pp. 2998-2999.
Modjallal Khosrow
Shaklee Kerry L.
Whetstone Albert L.
Brigance Gerald L.
Display Interface Corporation
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