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

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

Passive ranging sonar system

Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type

Passive seismic event detection

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

Passive sonar transducer arrangement

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

Passive sound telemetry method

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

Passive underwater range measurement acoustic system

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

Passive underwater target detection and locating system

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

Patch test for 3D sonar data

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

Pattern comparison ultrasonic surveillance system with noise sup

Communications – electrical: acoustic wave systems and devices – Acoustic image conversion – With memory means

Peak detector for resolution enhancement of ultrasonic visualiza

Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type

Performing 3-D scatterer imaging from 2-D seismic data

Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Offshore prospecting

Performing quality control with respect to positioning of...

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through well fluids

Permanent downhole resonant source

Communications – electrical: acoustic wave systems and devices – Signal transducers – Underwater type

Permanent magnet biased magnetostrictive transducer

Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Offshore prospecting

Permanent seafloor seismic recording system utilizing micro...

Communications – electrical: acoustic wave systems and devices – Acoustic image conversion – With memory means

Permutating analog shift register variable delay system

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

Personal identification method and apparatus using acoustic...

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

Personal object detector

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

Personal object detector with enhanced stereo imaging capability

Communications – electrical: acoustic wave systems and devices – Transmitter systems – Animal control

Personal protective device and method of using the same