Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1989-01-17
1990-06-26
Scott, J. R.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340709, 340710, 273148B, G09G 302
Patent
active
049375644
ABSTRACT:
An efficient, manually activated direction sensitive input system having particular application to a computer to enable a computer operator to selectively and easily initiate one of a plurality of available software controlled functions. The input system comprises a contact bar which is located at the front of the computer keyboard to be interfaced with and movable relative to an array of electrical switches located at the interior of the keyboard. The contact bar is readily accessible to the computer operator for movement in one of several directions to actuate a respective switch or combination of switches of the array and thereby initiate a corresponding software controlled function. The present direction sensitive input system is a convenient, space conserving alternative to the remotely located switches of a conventional mouse system that have heretofore been associated with some computers.
REFERENCES:
patent: 3720801 (1973-03-01), Yanaga
patent: 3806685 (1974-04-01), Seeger, Jr. et al.
patent: 4575591 (1986-03-01), Lugaresi
patent: 4799049 (1989-01-01), Avila
patent: 4823634 (1989-04-01), Culver
Fischer Moreland C.
Scott J. R.
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