Electronic instrument with a flexible keyboard

Details Electronic instrument with a flexible keyboard Electronic instrument with a flexible keyboard

1979-03-27

1981-04-21

Krass, Errol A.

Boots, shoes, and leggings

307231, 340365C, 364712, G06F 748

Patent

active

042636590

ABSTRACT:
An electronic instrument has a power switch provided on the upper surface of a keyboard. The keyboard comprises a substrate having transmitting electrodes and receiving electrodes and a flexible sheet having transparent electrodes in opposition to the transmitting and receiving electrodes. Between the substrate and flexible sheet there are arranged characters, symbols and the like. Cell, display device and logical operation elements are disposed gathered within a limited area of the substrate.

REFERENCES:
patent: 3911234 (1975-10-01), Kotaka
patent: 4016490 (1977-04-01), Weckenmann et al.
patent: 4017848 (1977-04-01), Tannas, Jr.
patent: 4081898 (1978-04-01), Taylor, Jr. et al.
patent: 4096577 (1978-06-01), Ferber et al.
patent: 4104728 (1978-08-01), Kasubuchi
patent: 4125783 (1978-11-01), Sefton
patent: 4145584 (1979-03-01), Otterlei

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