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
Pixel structure of organic light emitting device
System and method for confirming delivery of an electronic message
Fast carrier allocation in multi-carrier systems
Vehicle-mounted camera stabilized passively by vibration isolators
Methods and systems for managing electronic messages
Systems and methods for computer-aided fold detection
Under bump passive components in wafer level packaging
  Randomly Featured Patents
Process and apparatus for reacting sulphur-containing material with oxidizing gas
Breast locating device including an RFID transponder for a diagnostic instrument for examining a female breast
Apparatus for preventing automatic generation of a chain reaction of messages if a prior extracted message is similar to current processed message
Method of regenerating a spent pickling solution
Proportional plotting device
Bathroom cabinet
Scented mat product and method for making the mat product
Hydroalkylation of aromatic compounds using EMM-12
Crimping tool having a cam roller brake
Contoured sandal innersole