METHOD AND APPARATUS FOR MEASURING THE DEPTH OF AN UNDERWATER TARGET
Assignee
Filed
Jun 3, 1970
Granted
Apr 22, 1997
Location
Abstract
A method and apparatus for determining the depth of a marine target relat to the surface of the water which encompasses an analog processing circuit for detecting and analyzing signals reflected respectively from a target and the water surface, a timing and gating circuit respectively responsive to a target echo signal for initiating a timing sequence and to a surface echo signal for terminating the timing sequence, and a depth readout circuit for indicating the depth of the target below the surface at the instant the surface echo signal terminates the timing sequence.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Feb 4, 1982
Rescinded
Aug 1, 1996
Duration
14 years, 6 months
Inventor
- 1Unknown Unknown
Record Details
- Patent number
- US 5623524
- Application
- 04620588
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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