Resources Contact Us Home
Obstacle detecting apparatus using ultrasonic waves

Image Number 4 for United States Patent #4103278.

The present invention relates to an obstacle detecting apparatus using ultrasonic waves, wherein an ultrasonic transmitter-receiver and an ultrasonic receiver are provided at a desired interval, and thereby the distance and the direction to the obstacle are obtained by the intersecting point between the circular locus of the first reflected wave returning after reflection at the obstacle, and the elliptical locus of the second reflected wave to the ultrasonic receiver. Under this structure, when any person or any obstacle like a building exists within the dead angle of a motor vehicle in case a driver is going to back it, the driver is informed of the distance and the direction to the obstacle by means of the obstacle detecting apparatus using ultrasonic waves.

  Recently Added Patents
Use of physical deformation during scanning of an object to generate views of the object
Method for transmitting a signal
Use of beta-adrenoceptor antagonists for the manufacture of a medicament of the treatment of disorders of the outer retina
Antagonists of the glucagon receptor
Non-serialized electronic product registration system and method of operating same
Die seal ring
Method and apparatus for generating soft bit values in reduced-state equalizers
  Randomly Featured Patents
Semiconductor device and method of manufacturing the same
Multi-purpose food processor
Three-dimensional knitted cover
Screw extruder
Thermoset material based on antiplasticizing polythiourethane and ophthalmic lens comprising an antiplasticized thermoset material
Phase shift based precoding method and transceiver for supporting the same
Wide band dispersion-controlled fiber
Transmission Housing
Charging base for a cordless telephone
Brain disease diagnosis system