Charging circuit for sonar systems
Color sonar for underwater object collision avoidance
Combination tape measure and range finder
Commutator and fiber brush rotating disc
Contact ultrasonic transducer head
Container and adaptor for use with fluid volume sensor
Current loop control circuit for a time of flight ranging...
Curvilinear wideband, projected derivative-matched, continuous a
Data processing and display for echo sounding data
Data selector circuit with channel skipper for data acquisition
Delay interpolator for digital phased array ultrasound beamforme
Depth finder having variable measurement capabilities
Depth finder with tutorial
Depth finding apparatus
Depth finding-trolling system
Depth sounder repeater structure and method
Depth sounder with object identification feature
Depth sphere
Depthfinder with color LCD display
Detection and classification for multi-beam sonar systems