Title: Antijam communications system

Abstract: 1. An antijam, two-way communications station comprising a radiant energy ansmitter and receiver, a signal source connected to said transmitter, a signal subtractor having one input connected to said signal source, another input connected to said receiver and an output, means for selectively connecting said transmitter to said receiver and the output of said signal source for establishing a degenerative feedback loop for noise-free transmission and reception with another station of substantially the same type.

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Inventors: De Hart, Willis D. (Alexandria, VA, US)

Application Number: 786896
Filing Date: 1959-01-14
Publication_date: 1976-10-05
Assignee: The United States of America as represented by the Secretary of the Navy (Washington, DC)
Primary Class(es): 455/63.1 455/69
Other Classes:
US Patent Ref:

1519211	Dec, 1924	Martin	330/107.
2070666	Feb, 1937	Lewellyn	250/6.
2253976	Aug, 1941	Guanella	330/75.
2418119	Apr, 1947	Hansen	250/6.
2463502	Mar, 1949	Atkins	250/6.
2473983	Jun, 1949	Wolf	330/107.
3001064	Sep, 1961	Alexis et al.	325/65.

Other Refs: 886,340

Jun, 1943	FR

Primary Examiner: Birmiel, Howard A.
Assistant Examiner:
Attorney: Hodges; Q. E.