Resources Contact Us Home
Metal object detection system for detecting the position of a metal object

Image Number 5 for United States Patent #5564696.

A metal object detection system comprising a matrix sensor having sensing units arranged like a matrix and a signal processing system for driving the matrix sensor for detecting a metal object. The signal processing system comprises circuitry for driving the matrix sensor and inputting a reception signal from the sensor, a plurality of peripheral detection points surrounding a main detection point, and circuitry which, when a metal object detection response is made at the main detection point by a sensing unit contained in the monitor frame, compares the response with a response of each of other peripheral detection points in the frame. When, the response of the main detection point is the largest, the circuitry determines that a metal object exists at the main detection point.

  Recently Added Patents
Pyrrolidine-1,2-dicarboxamide derivatives
Moving picture decoding device and moving picture decoding method
Vehicle speed verification system and method
Lighting apparatus
NMR, instrumentation, and flow meter/controller continuously detecting MR signals, from continuously flowing sample material
Laser marking of a card
Flame-proofed thermoplastic compositions
  Randomly Featured Patents
Process for phosphating metals
Tire defect detector
Protective overcap for a shaving head
Welding gun
Air conditioner
Skin blemish treatment
Combustion control method for a direct-injection controlled auto-ignition combustion engine
Method for forming carbonaceous films
Multiport ethernet connector
Medical treatment method and apparatus