Patents by Inventor Gerhard Zwilling

Gerhard Zwilling 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: 5036487
    Abstract: A CMOS-RAM memory is composed of at least one main memory area SF whose memory cells are realized with a seven transistor basic cell (SC) in a gate array arrangement. The memory cells are thereby arranged in a matrix in the main memory area. A word line decoder (WD) lies at one side of the main memory area (SF) of the gate array arrangement in row direction, this word line decoder (WD) containing - per row of memory cells-a decoder sub-circuit (WDT) realized with basic cells for generating a word line signal from address signals. A drive circuit (AST) is arranged between the word line decoder (WD) and the main memory area (SF), the drive circuit (AST) providing - per row of memory cells - a drive sub-circuit (ASTT) for generating a write signal in inverted and non-inverted form from the word line signal and from a selection signal with which the memory cells of a row of memory cells are driven.
    Type: Grant
    Filed: November 6, 1989
    Date of Patent: July 30, 1991
    Assignee: Siemens Aktiengesellschaft
    Inventors: Anastasios Karetsos, Gerhard Zwilling