Patents by Inventor Steven T. Walther

Steven T. Walther 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: 7085184
    Abstract: A delayed bitline leakage compensation circuit for memory devices is disclosed. The delayed bitline leakage compensation circuit includes a bitline leakage model circuit for modeling discharge of a bitline by leakage current in a read operation. It further has a delayed charge signal generator for generating a delayed charge signal in response to the bitline leakage model circuit discharging to approximately a discharge threshold. The delayed charge signal generator is deactivated if the bitline is discharged by a selected memory cell. Moreover, the delayed bitline leakage compensation circuit includes a delayed charge circuit for charging the bitline in response to the delayed charge signal.
    Type: Grant
    Filed: September 27, 2004
    Date of Patent: August 1, 2006
    Assignee: nVidia Corporation
    Inventors: Steven T. Walther, Scott B. Kuusinen, Sameer D. Halepete