Patents by Inventor Andreas Wild

Andreas Wild 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: 5495437
    Abstract: A non-volatile RAM circuit (10) uses ferro-electric capacitors (14, 16) to store data in a dormant state. Data is initially stored on the ferro-electric capacitors. The data stored on the ferro-electric capacitors is transferred to a memory cell (25) when the RAM circuit is powered up. Subsequent read operations after the power-up sequence obtain data from the memory cell instead of the ferro-electric capacitors. Any write operation during the power-up sequence is stored in the memory cell. When power is removed, the ferro-electric capacitors are updated with the present state of the memory cell. The endurance and data retention time of the ferro-electic capacitors increases by accessing data from the memory cell.
    Type: Grant
    Filed: July 5, 1994
    Date of Patent: February 27, 1996
    Assignee: Motorola, Inc.
    Inventors: Jy-Der D. Tai, Andreas A. Wild