Patents by Inventor W. Dale Edwards

W. Dale Edwards 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).

  • TTL to CMOS Interface circuit
    Patent number: 4380710
    Abstract: An interface circuit including a FET inverter with its N channel device being part of the controlled leg of a first current mirror and its P channel device being part of the controlled leg of a second current mirror. The operating point of the inverter is the reference signal applied on the input to the current mirrors. The controlled leg of the first current mirror includes a variable current source responsive to the input signal and the controlled leg of the second current mirror includes a variable current sink for improving the response time of the inverter and compensates the inverter for manufacturing tolerances.
    Type: Grant
    Filed: February 5, 1981
    Date of Patent: April 19, 1983
    Assignee: Harris Corporation
    Inventors: Paul B. Cohen, William R. Young, W. Dale Edwards