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
Sulfonyl semicarbazides, semicarbazides and ureas, pharmaceutical compositions thereof, and methods for treating hemorrhagic fever viruses, including infections associated with arena viruses
Plastically deformable inter-osseous device
Gaming machine cabinet construction and method
Spring mounting device for nuclear fuel rod
Docking port optical cover
Apparatus and method for the detection and treatment of atrial fibrillation
Expandable anchoring mechanism
  Randomly Featured Patents
Microorganism combatting quinoxaline-di-N-oxide carboxamides
Joint hinge, particularly for glass swinging doors
Piperidone intermediates useful in the preparation of aryldecahydropyrrolo [3,4-f]quinolines
Rose Plant/Var. MORquake
Rapidly charged sample-and hold circuit
Endoscopic device for locomotion through the gastro-intestinal tract
Vending machine for heated food, notably cooked french fries
Method and apparatus for multi-color display
Cleaning device for contact lens
Oak textured contoured panel