Patents by Inventor Udo Grehl

Udo Grehl 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: 5986491
    Abstract: The clock signal generator can be used to generate a first and/or a second output clock signal from an input clock signal. The rising and/or falling edges of the input clock signal are shifted using delay stages. The clock signal generator has a delay stage with a plurality of delay elements that are wired up in parallel and that have different delay lengths, and a selection device that is used to determine which of the output signals from the delay elements is to be output as the output signal of the delay stage.
    Type: Grant
    Filed: November 6, 1998
    Date of Patent: November 16, 1999
    Assignee: Siemens Aktiengesellschaft
    Inventors: Udo Grehl, Achim Dallmann
  • Patent number: 5309494
    Abstract: A circuit configuration includes k linking cells each generating one of k output states from two of k input states. Each of the linking cells have two counters. Each of the counters have a serial data input, a serial data output, and a serial counting width input. The counters increase a counter state loaded through the data input and represent the respectively assigned input state by a value input through the counting width input. Comparators are each connected to the data outputs of two of the counters for serially comparing the two counter states with one another. Multiplexers are each connected to the data outputs of two of the counters for outputting one of the two counter states as an output state under the control of the comparator.
    Type: Grant
    Filed: October 26, 1992
    Date of Patent: May 3, 1994
    Assignee: Siemens Aktiengesellschaft
    Inventor: Udo Grehl