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

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

Communications – electrical: acoustic wave systems and devices – Echo systems – Side scanning or contour mapping sonar systems

Seabed sonar matrix system

Communications – electrical: acoustic wave systems and devices – Echo systems – Side scanning or contour mapping sonar systems

Seabed sonar matrix system

Communications – electrical: acoustic wave systems and devices – Echo systems – Side scanning or contour mapping sonar systems

Seabed surveying apparatus for superimposed mapping of topograph

Communications – electrical: acoustic wave systems and devices – Echo systems – Presence or movement only detection

Security door with improved sensor for detecting unauthorized pa

Communications – electrical: acoustic wave systems and devices – Echo systems – Presence or movement only detection

Security door with improved sensor for detecting unauthorized pa

Communications – electrical: acoustic wave systems and devices – Echo systems – Returned signal used for control

Selection control and indication means

Communications – electrical: acoustic wave systems and devices – Echo systems – Returned signal used for control

Self-calibrating ultrasonic range finder

Communications – electrical: acoustic wave systems and devices – Echo systems – Returned signal used for control

Self-propelled vehicle for destroying ground mines

Communications – electrical: acoustic wave systems and devices – Echo systems – Presence or movement only detection

Sensor for detecting moving object with the aid of a...

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

Sensor module for trawl

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

Sensor module for trawl

Communications – electrical: acoustic wave systems and devices – Echo systems – Side scanning or contour mapping sonar systems

Shallow water beamforming methodology for toroidal volume search

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

Short range ultrasonic distance warning system for motor vehicle

Communications – electrical: acoustic wave systems and devices – Echo systems – Side scanning or contour mapping sonar systems

Side look sonar apparatus and method

Communications – electrical: acoustic wave systems and devices – Echo systems – Side scanning or contour mapping sonar systems

Side looking sonar apparatus