Laser powered clock circuit with a substantially reduced...

Details Laser powered clock circuit with a substantially reduced... Laser powered clock circuit with a substantially reduced...

2007-02-20

2007-02-20

Chang, Joseph (Department: 2817)

Oscillators

With device responsive to external physical condition

Temperature or light responsive

C257S458000

Reexamination Certificate

active

10838485

ABSTRACT:
A synchronous clock signal is generated in a large number of local clock circuits at the same time by exposing photoconductive regions in each local clock circuit to a pulsed light source that operates at a fixed frequency. The photoconductive regions generate photoconductive currents which are sufficient to cause a logic inverter to switch states.

REFERENCES:
patent: 4542289 (1985-09-01), Yokoyama et al.
patent: 4544938 (1985-10-01), Scholl
patent: 5442475 (1995-08-01), Bausman et al.
patent: 5521736 (1996-05-01), Swirhun et al.
patent: 5889903 (1999-03-01), Rao
patent: 6653706 (2003-11-01), Miller et al.
patent: 2005/0146934 (2005-07-01), Forbes et al.

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