Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Dynamic rebasing of persisted time information
Data processing apparatus including reconfigurable logic circuit
Distributed multicast packet replication with centralized quality of service
Apparatus and method to simulate a power trip to a disk drive
System and method for multi-threaded MIMO OFDM channel equalizer
Image forming apparatus and control method therefor
Methods, systems, and computer-readable media for providing an event alert
  Randomly Featured Patents
Waveguide lens
Process for preparing para-hydroxybenzoic acid
Amplified fluorescence emission for chemical transduction
Jack connector
Exposed legs for a play yard
Process for the removal and suppression of dissolved hydrogen sulfide and other malodorous compounds and reduction of acidity in liquid and sludge wastewater systems
Memory control method and memory system
Conveyor lubricant and method for transporting articles on a conveyor system
High quality isolation for high density and high performance integrated circuits
Data storage and communication system