Display and keyboard panel

Details Display and keyboard panel Display and keyboard panel

1989-03-22

1989-12-05

Moore, David K.

Communications: electrical

Land vehicle alarms or indicators

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

341 22, 341 23, 341 34, H01H 916

Patent

active

048855740

ABSTRACT:
A display and keyboard panel for an electronic device such as a handheld or desktop calculator, the panel having a keyboard area and an indication area located in the vicinity of the keyboard area. The indication area has a plurality of key sections each having at least two component areas each for indicating a single piece of information. Each of the key sections is typically formed by a touch sensor switch area having at least two adjacent areas corresponding respectively to the aforesaid component areas, each of the adjacent areas of the touch sensor switch area including at least one segment or plural segments of a conductor.

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patent: 4566001 (1986-01-01), Moore et al.
patent: 4595804 (1986-06-01), MacConnell
patent: 4633227 (1986-12-01), Menn
Hamilton et al-"Memory Arrangement Representing a Keyboard Having Both Fixed and Variable Characters"--IBM Technical Disclosure Bulletin--vol. 21, No. 9--Feb/79--pp. 3471-3472.
"Programmable Keyboard Labelling"--IBM Technical Disclosure Bulletin--vol. 27, No. 11, Apr./1985--pp. 6604-6605.
R. D. Mathews--"Dual-Keyboard Graphics"--IBM Technical Disclosure Bulletin--vol. 19, No. 2, Jul./1979--p. 375.
Bigbie et al.--"Programamble Key/Display/Switch Device"--IBM Technical Disclosure Bulletin--vol. 21, No. 2, Jul./1978--pp. 442-444.

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