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

Communications – electrical: acoustic wave systems and devices – Distance or direction finding – By combining or comparing signals

Headtracking system

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

High frequency acoustic float for the versatile mine system

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

High speed underwater projectile tracking system and method

Communications – electrical: acoustic wave systems and devices – Distance or direction finding – With beam steering – scanning – or focussing

Homing device for underwater divers

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

Hostile weapon locator system

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

Hybrid pressure and vector sensor towed array

Communications – electrical: acoustic wave systems and devices – Distance or direction finding – With time interval measuring means

Hydroacoustic ranging method using bottom reflections

Communications – electrical: acoustic wave systems and devices – Distance or direction finding – By combining or comparing signals

Hydroacoustic ranging system

Communications – electrical: acoustic wave systems and devices – Distance or direction finding – By combining or comparing signals

Hydroacoustic ranging system

Communications – electrical: acoustic wave systems and devices – Distance or direction finding – By combining or comparing signals

Hydrophone for determining direction of underwater sound

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

Hydrophones and similar devices

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

Hypothesized range and depth sonar processing method