Patents by Inventor Alf Neustadt

Alf Neustadt 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: 5663988
    Abstract: The levels of received time-division multiple access (TDMA) signals may vary widely from section to section. In DC-coupled amplifier circuits, the received signals are distorted by offset voltages. Conventional correcting or balancing methods use control mechanisms which do not allow for level variations or offset drift and tend to result in miscompensation of individual signal sections. Other methods depend on time intervals defined in the received signal and having a known average value. It is the object of the invention to provide a correcting method and a circuit arrangement for carrying out the same which achieve a self-adjusting, not widely varying (floating) correction value, thus avoiding miscompensation. This is accomplished by selecting the individual time slots in a comparator with the aid of limit value.
    Type: Grant
    Filed: January 14, 1993
    Date of Patent: September 2, 1997
    Assignee: Alcatel SEL Aktiengesellschaft
    Inventor: Alf Neustadt