Fast-switching comparator with hysteresis

Details Fast-switching comparator with hysteresis Fast-switching comparator with hysteresis

1999-10-21

2002-03-26

Lee, John R. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C327S206000

Reexamination Certificate

active

06362467

ABSTRACT:

BACKGROUND OF THE INVENTION
A comparator may be used in an optocoupler driver-detector to sense the output of the driver. In a high-speed coupler, the comparator must not impose any significant delay.


REFERENCES:
patent: 3725673 (1973-04-01), Frederiksen et al.
patent: 5122690 (1992-06-01), Bianchi
patent: 5136183 (1992-08-01), Moyal et al.
patent: 5202553 (1993-04-01), Geller
patent: 5880611 (1999-03-01), Danstrom
patent: 0 429 829 (1991-06-01), None
patent: 0 730 346 (1996-09-01), None
Patents Act 1977; Search Report under Section 17(5), The Patent Office Nov. 27, 2000 two pages.

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