Patents by Inventor Jeffrey F. Waldrip

Jeffrey F. Waldrip 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: 7176720
    Abstract: Disclosed is a circuit comprising a differential input amplifier stage, a capacitor stage, an inverter chain stage, and a biasing circuit. The inverter chain stage may be formed with or without feedback depending on whether a clock signal or data signal is to be translated using the disclosed circuit. The biasing circuit can be formed using either inverters or transmission gates. Moreover, the biasing circuit, the inverter chain stage, and the amplifier stage can be connected to a power down circuit which, when the translator is not being used, will ensure various circuitry of the translator will not consume extensive power. The inverter chain stage, biasing circuit, and capacitor stage are formed on both an upper and lower section to produce true and complementary outputs that have a consistent and equal delay from the transitions of the incoming differential input signal so as to minimize jitter and associated duty cycle of the translated output.
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: February 13, 2007
    Assignee: Cypress Semiconductor Corp.
    Inventors: Stephen M. Prather, Jeffrey F. Waldrip, Matthew S. Berzins, Charles A. Cornell