DID YOU KNOW? DTIC has over 3.5 million final reports on DoD funded research, development, test, and evaluation activities available to our registered users. Click
HERE to register or log in.
Accession Number:
ADD014965
Title:
Acoustic Transponder Receiver Circuit.
Descriptive Note:
Patent, Filed 7 Dec 88, patented 16 Apr 91,
Corporate Author:
DEPARTMENT OF THE NAVY WASHINGTON DC
Report Date:
1991-04-16
Pagination or Media Count:
8.0
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 detector then detect the second input signal. The transponder responds in a second mode to the second input signal. Author
Distribution Statement:
APPROVED FOR PUBLIC RELEASE