Digital input apparatus

Details Digital input apparatus Digital input apparatus

1979-09-24

1982-03-02

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

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

340806, 340810, 318614, G06F 314

Patent

active

043180957

ABSTRACT:
Switch apparatus having a digital display is provided in accordance with the teachings of the present invention. The switch apparatus according to the present invention includes an encoder having a code pattern thereon which is scanned by a reader to produce multi-bit binary information to be displayed. A storage circuit having switch positional information stored therein is also provided and a collator is employed to compare the multi-bit binary information read by the reader with the positional information stored in the storage circuit. When a comparison is obtained a braking force is applied to inhibit scanning so that a switch position corresponding to stored positional information is obtained.

REFERENCES:
patent: 3256473 (1966-06-01), Simopoulos et al.
patent: 3721806 (1973-03-01), Stothart
patent: 3913095 (1975-10-01), Dlugos
patent: 4015253 (1977-03-01), Goldstein
patent: 4194184 (1980-03-01), Hartmann et al.

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