Multi-function, multi-mode switch for an instrument

Details Multi-function, multi-mode switch for an instrument Multi-function, multi-mode switch for an instrument

1991-01-31

1993-06-08

Nguyen, Vinh

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Plural ranges, scales or registration rates

324 99D, 364483, G01R 1508

Patent

active

052182908

ABSTRACT:
A multi-function, multi-mode switch for an instrument that changes the instrument between primary and secondary functions and between first and second modes of operation within the primary and secondary functions. The instrument changes from the first mode of operation to the second mode of operation when the switch is actuated for a first period of time. The instrument changes from the second mode of operation to the first mode of operation when the switch is activated for a second period of time. The instrument changes between the primary and secondary functions when the switch is operated for a third period of time. The switch controls a program that instructs the instrument to perform the appropriate operations. The program also instructs the instrument to confirm that an operation has occurred via audible and visual feedback.

REFERENCES:
patent: 4023101 (1977-05-01), Christoffer
patent: 4321530 (1982-03-01), Kelly et al.
patent: 4604569 (1986-08-01), Tedd et al.
patent: 5004975 (1991-04-01), Jordan
patent: 5119019 (1992-06-01), George
patent: 5142221 (1992-08-01), Meldrum et al.
Hioki Digital Hi Tester; "New Concept Digital Multimeters"; pp. 1-4; 1980 Cat. No. 3207E.

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