Information generating apparatus using elastic waves
Information generating apparatus using elastic waves
Information generator using elastic wave
Integrated automatic control for ultrasonic proximity switches
Interference suppression unit for a sonar apparatus
Intruder target monitoring sonar alarm system
Intrusion detection system
Level detector for fluent material
Magnetic relative position measuring system
Means for improving turnaround time stability for R-C energy det
Method and an arrangement for distance measurement using the pul
Method and apparatus for active sonar detection enhancement
Method and apparatus for detecting and counting articles
Method and apparatus for detecting position of object with ultra
Method and apparatus for determining the position of a mobile ap
Method and apparatus for locating the user of a computer system
Method and apparatus for monitoring and controlling the dispensi
Method and device for ultrasonic ranging
Method and system for detecting water depth and piloting vessels
Method and system for distinguishing between displacing targets