Patents by Inventor Karlheinz Url

Karlheinz Url 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: 4379345
    Abstract: A dynamic read amplifier for MOS memories comprises a flip-flop which includes two first switching transistors whose low end can be applied to ground by way of a cut-through transistor in response to a first clock pulse and whose outputs are connected to data lines via cut-off transistors which are controlled by a second clock pulse, whereby the data lines can be charged to the supply voltage by way of a pair of charging transistors in response to a third clock pulse. Given such dynamic read amplifiers for semiconductor memories, the regeneration of a logic "1" level, for example, is possible after an evaluation operation without additional leakage power. Therefore, two additional switching transistors and two further charging transistors are provided, as well as two additional data lines, so that only the respective data line with the logic "1" signal is connected to the supply voltage.
    Type: Grant
    Filed: July 8, 1981
    Date of Patent: April 5, 1983
    Assignee: Siemens Aktiengesellschaft
    Inventor: Karlheinz Url
  • Patent number: 4297592
    Abstract: An integratable dynamic current source for semiconductor modules which generates impressed currents of brief duration and of minimum current magnitude for read-out amplifiers in dynamic MOS memory modules utilizes capacitors integrated on the semiconductor chip and driven by selected voltage pulses and can be employed with a switching transistor to produce a voltage curve having a first portion with a low rate of change and a second portion having a high rate of change with respect to time.
    Type: Grant
    Filed: August 15, 1979
    Date of Patent: October 27, 1981
    Assignee: Siemens Aktiengesellschaft
    Inventors: Karlheinz Url, Paul W. von Basse