Patents by Inventor Carol C. Anderson

Carol C. Anderson 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).

  • Voltage tolerant oscillator input cell
    Patent number: 6181214
    Abstract: An integrated circuit oscillator input cell has an oscillator input pad, an oscillator feedback pad, a core terminal, an inverter and an electrostatic discharge protection circuit. The inverter has an inverter input, which is coupled to the oscillator input pad, and an inverter output, which is coupled to the oscillator feedback pad and the core terminal. The electrostatic discharge protection circuit includes a plurality of N-channel protection transistors, which are coupled to the oscillator input pad. The N-channel protection transistors are the only protection transistors that are coupled to the oscillator input pad.
    Type: Grant
    Filed: November 24, 1999
    Date of Patent: January 30, 2001
    Assignee: LSI Logic Corporation
    Inventors: Jonathan A. Schmitt, Carol C. Anderson