Patents by Inventor Harold H. Speed, III

Harold H. Speed, III 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).

  • Bus switch integrated circuit with voltage translation
    Patent number: 5751168
    Abstract: A circuit and method for providing a bus switch that translates voltage from one level to a second, lower level. A FET bus switch transistor 310 is integrated on the same silicon chip 320 with one or more diodes 330 in series with Vcc, the power supply 340. A bias current source 350 is included to bias the diode. The diodes and current source are configured to provide additional voltage translation so that when a control input couples the input pin at the source of the FET bus switch to the output pin at the drain of the FET bus switch, the voltage at the output pin can be placed at a predetermined level. The bus switch thus acts as both a bus coupling device and a voltage translation device.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: May 12, 1998
    Assignee: Texas Instruments Incorporated
    Inventors: Harold H. Speed, III, James C. Spurlin