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

Holder for rotatable sensor array

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

Human echolocation system

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

Icing preventive device for ultrasonic wave transmitting and rec

Communications – electrical: acoustic wave systems and devices – Echo systems – Side scanning or contour mapping sonar systems

Image conversion for a scanning toroidal volume search sonar

Communications – electrical: acoustic wave systems and devices – Echo systems – Side scanning or contour mapping sonar systems

Imaging sonar and detection system using such a sonar

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

Imaging sonar system and method

Communications – electrical: acoustic wave systems and devices – Echo systems – Side scanning or contour mapping sonar systems

Imaging system and associated method for surveying underwater ob

Communications – electrical: acoustic wave systems and devices – Echo systems – Side scanning or contour mapping sonar systems

Imaging system and associated method for surveying underwater ob

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

Imaging system for detecting underground objects and associated

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

Individual authentication method, individual authentication...

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

Information generating apparatus using elastic waves

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

Information generating apparatus using elastic waves

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

Information generator using elastic wave

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

Infra-sonic detector and alarm with self adjusting reference

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

Infra-sonic detector and alarm with self adjusting reference

Communications – electrical: acoustic wave systems and devices – Echo systems – Side scanning or contour mapping sonar systems

Inteferometric synthetic sonar antenna

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

Integrated automatic control for ultrasonic proximity switches

Communications – electrical: acoustic wave systems and devices – Echo systems – Side scanning or contour mapping sonar systems

Integrated mapping and audio systems

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

Integrated passive acoustic and active ultrasonic marine aquatic