Eric C Funk

US Patent:

55964389, Jan 21, 1997

Filed:

Sep 21, 1995

Appl. No.:

8/530398

Inventors:

Stephen E. Saddow - Laurel MD
Eric Funk - Silver Spring MD
Louis J. Jasper - Fulton MD
Chi H. Lee - Potomac MD

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

H04B 1000
H04B 1500
H04K 100

US Classification:

359154

Abstract:

A photoconductive spread-spectrum communications system that includes a tsmitter and a receiver. The transmitter includes an oscillating laser, a Pockels' cell, a delay cell, a photoconductive switch, and an antenna for transmitting an electromagnetic spread-spectrum signal. The receiver includes an oscillating laser, a Pockels' cell, an antenna for receiving a spread-spectrum signal, a photoconductive switch, a filter, and a threshold detector for regenerating the signal contained within the spread-spectrum transmission.