Systems and methods involving transducer signals

Details Systems and methods involving transducer signals Systems and methods involving transducer signals

2011-03-08

2011-03-08

Sohn, Seung C (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Signal isolator

C327S187000

Reexamination Certificate

active

07902532

ABSTRACT:
A system for operating a transducer comprising, a first node connected to a first transducer, a first photo-activated switching device having a first source, a first drain connected to the first node, and a first gate operative to receive a first logic signal, a first terminal connected to the first source; a second photo-activated switching device having a second source connected to the first node, a second drain, and a second gate operative to receive a second logic signal, and a second terminal connected to the second drain.

REFERENCES:
patent: 4039863 (1977-08-01), Ohhinata et al.
patent: 4801821 (1989-01-01), Prevost et al.

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