Method and apparatus for monitoring a photo-detector

Details Method and apparatus for monitoring a photo-detector Method and apparatus for monitoring a photo-detector

2005-05-03

2005-05-03

Le, Que T. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C250S214100

Reexamination Certificate

active

06888123

ABSTRACT:
An optical signal detector monitoring circuit can include a current divider current mirror (CDCM) and a current multiplier current mirror (CMCM). A mirror leg of the CDCM generates a current corresponding with a part of the CDCM's primary leg current. The CMCM's primary leg couples to the CDCM's mirror leg. The CMCM generates a mirror leg current corresponding with a multiple of its primary leg current. Another circuit can include a first current mirror having a primary current leg (PCL), coupled between an optical signal detector and one of an electrical source and an electrical sink, that exhibits a resistance corresponding with a part of the resistance of the first current mirror's mirror current leg (MCL). The circuit's second current mirror has a MCL that exhibits a resistance corresnonding with a part of the resistance of the second current mirror's PCL, which couples with the first current mirror's MCL.

REFERENCES:
patent: 4498001 (1985-02-01), Smoot
patent: 5481118 (1996-01-01), Tew
patent: 5805641 (1998-09-01), Patel
patent: 5956168 (1999-09-01), Levinson et al.
patent: 5981936 (1999-11-01), Fujiie
patent: 6188059 (2001-02-01), Nishiyama et al.
patent: 6333804 (2001-12-01), Nishiyama et al.
patent: 2069980 (1990-03-01), None
patent: 4088371 (1992-03-01), None

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