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

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

Ultrasonic obstacle sensor

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

Ultrasonic path guidance for visually impaired

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

Ultrasonic position detecting system

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

Ultrasonic proximity switch

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

Ultrasonic range finding

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

Ultrasonic rangefinder

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

Ultrasonic ranging device

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

Ultrasonic ranging device

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

Ultrasonic ranging in the near zone

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

Ultrasonic sensor

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

Ultrasonic sensor and method of using such a sensor

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

Ultrasonic sensor scanning apparatus and method for detecting ob

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

Ultrasonic stand-off gauge

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

Ultrasonic transducer

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

Ultrasonic transducer arrangement

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

Ultrasonic transmitting-receiving apparatus

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

Ultrasonic transmitting/receiving apparatus and scanning...

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

Ultrasonic wave distance detection system

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

Ultrasonic wave phase matching apparatus