Input unit

Details Input unit Input unit

1979-10-17

1985-02-05

Scott, J. R.

Electricity: circuit makers and breakers

Multiple circuit control

Multiple switch

200DIG2, 200159B, 200 5A, 340365R, H01H 1370

Patent

active

044979827

ABSTRACT:
Input unit for electronic equipment, consisting of a body of insulating material with finger guides in which sensor contacts and pushbutton switches are arranged. By moving the finger along the guides characters can be written and the sensor contacts produce corresponding electrical signals. By operating a corresponding pushbutton it is indicated that the writing-in operation is completed.

REFERENCES:
patent: 3705424 (1972-12-01), Harvey, Jr.
patent: 3728501 (1973-04-01), Larson et al.
patent: 3987259 (1976-10-01), Larson
patent: 3988551 (1976-10-01), Larson
patent: 4046981 (1977-09-01), Johnson et al.
patent: 4074088 (1978-02-01), Keough et al.
patent: 4197439 (1980-04-01), Mecklenburg
R. A. Johnson, IBM Technical Disclosure Bulletin; "Pushbutton Switch with No Moving Parts"; Apr. 1971, vol. 13, No. 11, p. 3551.

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