SONAR SYSTEM
Assignee
Filed
Apr 26, 1966
Granted
Jul 3, 1990
Location
SUNNYSIDE FL US
Abstract
A sonar system having a transmitter for successively broadcasting a pair ofcoustical signals having different frequencies, a programmer for determining the times said pair of signals are broadcast, a receiver for receiving said pair of signals after they have been reflected from a target, a programmer for effecting the conversion of said received pair of signals into a continuous unitary electrical signal having variable consecutive time periods which alternately contain the respective frequencies thereof, and a readout for displaying said continuous unitary electrical signal.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Jan 7, 1982
Rescinded
Feb 21, 1990
Duration
8 years, 1 month
Inventor
- 1FRANCIS J. MURPHREE
Record Details
- Patent number
- US 4939698
- Application
- 04546474
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
More from this assignee
IMPROVED CATALITIC SYNTHESIS OF CAGED POLYNITRAMINE COMPOUNDS
SOLID ROCKET PROPELLANT
DUAL INFRARED BAND OBJECTIVE LENS
BANDGAP RADIATION DETECTOR
METHOD OF FORMING TEXTURED HIGH-TEMPERATURE SUPERCONDUCTORS
APPARATUS FOR CONTROLLING THE POSITION AND DIRECTION OF A LASER BEAM
Related by domain
AIRBORNE RADAR JAMMING SYSTEM
BOEING, COMPANY, THE
METHOD AND APPARATUS FOR THE DETECTION OF OBJECTS USING ELECTROMAGNETIC WAVE ATTENUATION PATTERNS
JG TECHNOLOGIES LLC
OPTICAL NIGHT VISION DEVICE WITH STANDARD LIGHT INTENSIFIER
THOMSON-CSF SEXTANT
MULTIPLE INFRARED MISSILE JAMMER
LOCKHEED SANDERS INC, A DELAWARE CORPORATION
LOW OBSERVABLE WEAPON KIT
Northrop
SYSTEM FOR DETECTING RADIATION IN THE PRESENCE OF MORE INTENSE BACKGROUND RADIATION
RAMSEY ELECTRONICS, INC.