LandOfFree - US Patents - Listing for Communications, electrical: acoustic wave systems and devices,Echo systems,Distance or direction finding

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Processing echoes in ultrasonic liquid gauging systems

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Processing technique for forward looking sonar

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Proximity device

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Proximity indicating equipment

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Pulse echo distance measurement

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Pulse generating circuit means for depth sounder alarm and trans

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Pulse-echo system for mediums having varying densities

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Radiation selective system for target range and imaging readout

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Range expander for sonar system

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Real-time audio spectrum analyzer

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Reduction of low frequency vibrational noise in towed arrays

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Reflective object detecting apparatus

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Resolving directional information in sonar arrays

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Robust and intelligent bearing estimation

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Runway and obstacle detector to improve airplane landing

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Scanning sonar display system

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Scanning sonar system

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

SCR control for high current discharge circuit

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Sea bottom slope compensation apparatus