Patents by Inventor Peter Goldmann

Peter Goldmann has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Scanning device for a chip card
    Patent number: 4899035
    Abstract: A lever arm (14) carrying a set of contacts (16) is pivoted towards the operating position of a chip card by a slide (18) which is slidably guided parallel to the direction of insertion of a chip card into the scanning device. It is in turn displaceable by an individual operating member (17) to be operated by hand.
    Type: Grant
    Filed: October 25, 1988
    Date of Patent: February 6, 1990
    Assignee: U.S. Philips Corporation
    Inventors: Peter Goldmann, Gerhard Habelt, Hans Weihs
  • System for recording or detecting two marking signals on a record carrier
    Patent number: 4639793
    Abstract: In recording and/or detecting two different marking signals on or from a record carrier, a generator for marking signals comprises at least one pulse generator which supplies marking signals in the form of two marking-pulse trains M1 and M2 having the same frequency but having different duty factors with the values k and 1-k respectively, which differ from 0.5. A detection circuit for detecting marking signals detects the duty factor of a marking pulse train M1 or M2 respectively and which supplies a specific detection signal in conformity with its detected pulse train.
    Type: Grant
    Filed: April 9, 1986
    Date of Patent: January 27, 1987
    Assignee: U.S. Philips Corporation
    Inventor: Peter Goldmann