Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1988-12-12
1990-08-14
Brier, Jeffery A.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340706, 340709, 248918, G09G 500
Patent
active
049490800
ABSTRACT:
A computer keyboard control accessory in the form of an enclosure having a bottom entrance opening through which a computer keyboard can be introduced, a top access opening through which the keys of the keyboard extend so as to be operable by the user in the conventional manner, and a joystick fixedly mounted in the top panel of the enclosure and having a position convenient to the right hand of the user. The enclosure has a configuration similar to that of the keyboard, and the arrangement is such that the latter can be clamped between the undersurface of the enclosure's top panel and the enclosure's removable bottom plate. By virtue of the fact that the keyboard and joystick are housed in the one enclosure, and by the provision of a table space on the enclosure's top panel just in front of the joystick to accommodate the right hand of the user, greatly simplified operation is realizeable, as is improved control of the joystick, since the latter is securely held in a fixed position with respect to the keyboard and its keys. Insertion into and removal of the keyboard from the enclosure can be undertaken in only several minutes, and requires no special tools or skilled personnel. Further, no modification of the keyboard per se is required in order to use the accessory.
REFERENCES:
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patent: 4794381 (1988-12-01), Iwai
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IBM Technical Disclosure Bulletin, vol. 28, No. 2, Jul. 1985.
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