ACOUSTIC TRANSPONDER RECEIVER CIRCUIT
Assignee
US Government
Filed as: UNITED STATES OF AMERICA, THE, AS REPRESENTED BY THE SECRETARY OF THE NAVY
Filed
Dec 7, 1988
Granted
Apr 16, 1991
Location
SANTA BARBARA CA US
Abstract
A transponder that responds differently to two different input signals. The first input signal is at a first frequency. The first input signal is detected by a first powered detector that operates at the first frequency. The transponder responses in a first mode to the first input signal. The second input signal consists of short pulses at the first frequency and at a second frequency. The transponder responds to short pulses at the first frequency by powering a second detector. The first and second detectors then detect the second input signal. The transponder responds in a second mode to the second input signal.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
May 19, 1989
Rescinded
Nov 15, 1990
Duration
1 year, 6 months
Inventor
- 1REGINALD CYR
Record Details
- Patent number
- US 5008859
- Application
- 07281139
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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