Patents by Inventor Jean Wilwert

Jean Wilwert 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: 5663674
    Abstract: An integrated circuit configuration for generating a reference current by bipolar technology includes a transistor of one conduction type having a control terminal being acted upon by a reference voltage and having a load path. An externally connectable resistor is to be connected between the load path of the transistor and a reference potential. A current mirror configuration has an input side connected between the load path of the transistor and a supply voltage source and has an output for picking up a reference current.
    Type: Grant
    Filed: May 11, 1995
    Date of Patent: September 2, 1997
    Assignee: Siemens Aktiengesellschaft
    Inventors: Stefan Beyer, Bruno Scheckel, Werner Veit, Jean Wilwert
  • Patent number: 5557649
    Abstract: A circuit configuration being made by differential technology for dividing a clock signal with switchable divider ratios of 4/5 by emitter coupled logic, includes first, second and third series-connected flip-flops each having an output, a data input and a clock input. The output of the second flip-flop is coupled to the data input of the third flip-flop, and the clock inputs of the first, second and third flip-flops are acted upon by a clock signal. A first AND gate is connected upstream of the first flip-flop and has a first input being acted upon by a control signal for switching over the divider ratio, and a second input being acted upon by an inverted signal from the output of the third flip-flop.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: September 17, 1996
    Assignee: Siemens Aktiengesellschaft
    Inventors: Bruno Scheckel, Stefan Heinen, Jean Wilwert, Helmut Herrmann