Research/Patents/US 5291204
US 5291204

RADAR RESPONSE SYSTEM

Assignee

UNITED TECHNOLOGIES CORPORATION, A CORP. OF DE

Filed

Jul 9, 1990

Granted

Mar 1, 1994

Location

NORWALK CT US

Abstract

A covert radar response system suitable for use with an illuminating coherent radar system having a moving target indicator subsystem shifts the phase and/or frequency of a retroreflected beam to transmit a message to the illuminating system that is not detectable by other observers in the vicinity.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Jan 3, 1991

Rescinded

Aug 18, 1993

Duration

2 years, 7 months

Inventor

  • 1PAUL M. DANZER

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records