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

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

Access alarming method and apparatus for working vehicle

Communications – electrical: acoustic wave systems and devices – Echo systems – Parametric sonar

Acoustic concealed item detector

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

Acoustic detection apparatus

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

Acoustic doppler channel flow measurement system

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

Acoustic Doppler detector

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

Acoustic doppler dual current profiler system and method

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

Acoustic exploder

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

Acoustic flute web edge sensor

Communications – electrical: acoustic wave systems and devices – Echo systems – Parametric sonar

Acoustic force generator for detection, imaging and information

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

Acoustic lens arrangement

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

Acoustic logic circuits

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

Acoustic method and apparatus for measuring micron and submicron

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

Acoustic method and device for distance measurement

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

Acoustic object detection system and method

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

Acoustic obstruction detector and method

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

Acoustic pipe length measuring apparatus

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

Acoustic pool monitor with sequentially actuated multiple transd

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

Acoustic pulse echo ranging system

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

Acoustic pulse-echo wall thickness method and apparatus