Piezoelectric transducer with coded output signal

Details Piezoelectric transducer with coded output signal Piezoelectric transducer with coded output signal

1984-11-26

1986-04-01

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310319, 310800, H01L 4108

Patent

active

045800740

ABSTRACT:
A transducer responsive to a mechanical input produces a binary coded electrical signal on a single data bus. A plurality of piezoelectric elements each produce a voltage pulse when stressed and an actuator applies stress to the elements to generate a sequence of voltage pulses. The elements are coupled to the data bus according to polarity to establish a coded sequence of polarized pulses.

REFERENCES:
patent: 3350583 (1967-10-01), Schiavone
patent: 3397328 (1968-08-01), Schafft
patent: 3464531 (1969-09-01), Herr et al.
patent: 3648279 (1972-03-01), Watson
patent: 3940637 (1976-02-01), Ohigashi et al.
patent: 3976899 (1976-08-01), Fanshawe
patent: 4378552 (1983-03-01), Jalbert
patent: 4379245 (1983-04-01), Goldstein
patent: 4409548 (1983-10-01), Focht
patent: 4430595 (1984-02-01), Nakasone et al.
I.B.M Technical Disclosure Bulletin, Piezo-Electric Crystal Keyboard by J. J. Sharp; vol. 5, No. 10, Mar. 1963.

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