Patents by Inventor Egon Mathes

Egon Mathes 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: 4468575
    Abstract: In a logic circuit arrangement comprising a plurality of sticks formed by series arrangements of transistors which receive the signals to be processed a conductive stick not only has to discharge the output capacitance of the logic output but also other sticks which are not completely conductive, namely up to the first cut-off transistor. This may result in a very high capacitive load, which substantially reduces the maximum attainable switching speed. In accordance with the invention an additional transistor is arranged between each stick and the output of the entire logic circuit, which transistor receives a gate voltage such that current flow from the cut-off charged sticks via a conductive stick is prevented or delayed until the output signal of the logic circuit has assumed a value which unambiguously switches over the next output transistor.
    Type: Grant
    Filed: December 9, 1981
    Date of Patent: August 28, 1984
    Assignee: U.S. Phillips Corporation
    Inventor: Egon Mathes
  • Patent number: 4415819
    Abstract: Some known logic MOS circuits operated too slowly because too many "branches" were connected to a node of the circuit to be charged or discharged for the information transfer. The invention relates to a circuit arrangement with isolated branches, so that a faster clock signal can be used, which results in faster operation of the circuit.
    Type: Grant
    Filed: January 8, 1981
    Date of Patent: November 15, 1983
    Assignee: U.S. Philips Corporation
    Inventor: Egon Mathes