Patents Assigned to F. Zimmerman GmbH & Co., KG
  • Device for recognizing coins
    Patent number: 6417471
    Abstract: Device for recognizing coins based on their di-electric surface properties by radiating electromagnetic radiation by a transmitter onto a coin, which is reflected from the surface of the coin and received by a receiver which transforms the reflected electromagnetic radiation into a measuring signal, said signal is then evaluated by an evaluator unit in which a wavelength-selective evaluating signal is generated and compared to wavelength-selective comparison bands.
    Type: Grant
    Filed: March 7, 2000
    Date of Patent: July 9, 2002
    Assignee: F. Zimmerman GmbH & Co., KG
    Inventor: Wolfgang Rompel