Dual slide switch voltage encoder

Details Dual slide switch voltage encoder Dual slide switch voltage encoder

1978-06-28

1980-08-26

Miller, Charles D.

Communications: electrical

Audible indication

Percussion-type sound producer

H03K 1302

Patent

active

042198011

ABSTRACT:
A dual slide switch voltage encoder is provided in which a plurality of analog voltages are produced as output signals of the encoder at a single output terminal. Two three position slide switches having manual actuators are utilized to provide a series of nine different analog output voltages having substantially equal increments in magnitude therebetween. A reference voltage from a microprocessor is utilized to develop these analog output voltages which are subsequently fed into an analog to digital converter in the microprocessor. Thus the present invention utilizes two three position slide switches to create a series of analog voltages having equal increments in magnitude therebetween wherein each of these analog voltages represents a different logic state corresponding to a specific combination of the various possible mechanical positions of the manual actuators of the two three position slide switches.

REFERENCES:
patent: 2988737 (1961-06-01), Schroeder
patent: 3044007 (1962-07-01), Akers
Bachmann, "IBM Technical Disclosure Bulletin", vol. 9, No. 10, Mar. 1967, p. 1330.
Timko, "Electronic Design", 20, Sep. 27, 1978, pp. 68-76.
Schulein, "Electronics", Mar. 4, 1976, p. 123.

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