Smart pixel array using single diode for detection and modulatio

Details Smart pixel array using single diode for detection and modulatio Smart pixel array using single diode for detection and modulatio

1996-01-17

1998-07-07

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250551, 359154, 327514, H01J 4014

Patent

active

057773181

ABSTRACT:
A smart pixel array is disclosed wherein a single optical beam can be used to transmit information to and from each subarea or cell of the pixel array. An optical P-I-N diode with an intrinsic MQW region is present in each subarea, and the optical beam is oriented to impinge on the diode. A first transmission gate couples information to be transmitted to the diode during a transmit interval, and information received by the diode is coupled through a second transmission gate to a receiver circuit during a receive interval. A third transmission gate couples a reset potential to the diode during spacing intervals between the transmit and receive intervals.

REFERENCES:
patent: 5093565 (1992-03-01), Lentine
patent: 5233184 (1993-08-01), Chirovsky et al.
patent: 5329113 (1994-07-01), Taylor et al.
patent: 5483186 (1996-01-01), Miller et al.
patent: 5508508 (1996-04-01), Miller
Miller et al., "Field-Effect Transistor Self-Electro-Optic Effect Device: Integrated Photodiode, Quantum Wall Modulator and Transistor", IEEE Photonics Technology Letters, vol. 1, pp. 61-64, Jan. 1989.
Goossen et al., "GaAs MQW Modulators on Silicon ICs", Invited Paper, IEEE LEOS Topical Meeting on Smart Pixels, Jul. 1994.
Weste et al., "Principles of CMOS VLSI Design" Addison-Wesley Publishing Co., 2nd Edition, pp. 86-90, 1993.

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