Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Reexamination Certificate
2006-08-29
2008-08-12
Luu, Thanh X. (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
C250S2140LS, C331S066000
Reexamination Certificate
active
07411172
ABSTRACT:
A latch circuit includes first and second resonant tunneling diodes coupled in series, and a reset portion having a photodiode portion responsive to varying photonic energy for switching between first and second states which are different. When the photodiode portion is in its first state, the reset portion normalizes a voltage across each of the resonant tunneling diodes.
REFERENCES:
patent: 6288617 (2001-09-01), Broekaert
patent: 11068521 (1999-03-01), None
Baker & Botts L.L.P.
Livedalen Brian J
Luu Thanh X.
Raytheon Company
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