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

Power saving technique for pulse-echo acoustic ranging systems

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

Power-efficient sonar system employing a waveform and...

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

Preprocessor and adaptive beamformer for linear-frequency modula

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

Prevention of reporting unwanted signals by the filtering of...

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

Process and apparatus for improved interference suppression in e

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

Process and system for measuring when dragged underwater beneath

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

Process for removing all ambiguity from the measurement by Doppl

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

Process for setting the transmission frequency of a distance mea

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

Process for the recognition and separation of useful and interfe

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

Process of acoustic emission for sonar

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

Processing of reflected signals

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 – 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 – Echo systems – Returned signal used for control

Pulse-echo ranging system