Semiconductor relay device

Details Semiconductor relay device Semiconductor relay device

2007-06-26

2007-06-26

Lee, John R. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Signal isolator

C250S2140RC, C250S239000

Reexamination Certificate

active

11191268

ABSTRACT:
A system is described that adjusts the impedance of a circuit. One aspect of the present invention may have: a light-emitting element; a photo detector being configured to receive an optical signal from the light-emitting element, to generate an electrical signal; a switching element being configured to output a signal for driving an outside circuit with being corresponding to the signal; a wiring electrically connecting the switching circuit and the outside circuit; and a base board provided near the wiring, being configured to control a characteristic impedance of the wiring without connecting to the wiring.

REFERENCES:
patent: 4296331 (1981-10-01), Rodriguez
patent: 4419586 (1983-12-01), Phipps
patent: 4564770 (1986-01-01), Sherman et al.
patent: 6927909 (2005-08-01), Minemoto
patent: 2002-261319 (2002-09-01), None
patent: 2003-8050 (2003-01-01), None

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