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

Communications – electrical: acoustic wave systems and devices – Echo systems – Speed determination

Pulse coded sonar having improved doppler determination feature

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 – Transmitter systems

Pulse generating drive circuit for an electromagnetic source...

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

Pulse production and control in drill strings

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

Pulse sampled optical fiber hydrophone array (U)

Communications – electrical: acoustic wave systems and devices – Sonar counter-measures

Pulse transformation sonar

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

Pulse-echo ranging system

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

Pulse-echo ranging system

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 – Signal transducers – Underwater type

Pulsed combustion acoustic wave generator

Communications – electrical: acoustic wave systems and devices – Echo systems – Speed determination

Pulsed directional doppler frequency domain output circuit

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

Pulser

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

Purging and expansion mechanism

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

Push-pull tonpilz transducer

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

Pyro-acoustic generator for protecting submarines and...