Patents by Inventor Alfred Kientz

Alfred Kientz 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).

  • Patent number: 6252913
    Abstract: A sometimes positive and sometimes negative frequency deviation is associated to a given logic value. The deviation is positive during a certain period of time and then negative, the respective periods being determined so that the cumulated sums of the positive and negative deviation periods are practically equal. A device comprises to this effect an analyzer element for analyzing the asynchronous NRZ signal, having an analog integrator (1, 2) for measuring time, which actuates a switch (3) for selecting a control voltage (MOD) from three voltages. This analyzer element comprises a D-flipflop (2) to whose clock input (CP) is fed the asynchronous NRZ signal, with a resistance-capacitance feedback (4, 1) between its output Q and its input D, and with means (3) for connecting the output {overscore (Q)} of the flipflop (2) to its input D when the NRZ signal has a given logic level.
    Type: Grant
    Filed: November 13, 1997
    Date of Patent: June 26, 2001
    Assignee: U.S. Philips Corporation
    Inventor: Alfred Kientz