Patents by Inventor Eldon C. Cornish

Eldon C. Cornish 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: 4767951
    Abstract: A circuit for coupling ECL level logic signals to NMOS circuitry first translates the ECL logic swing from the range of -1.6 v to -0.8 v up to the range of about +0.5 v to +1.3 v. This is done by driving the source of an enhancement device with the ECL input signal. This has the further benificial effect of compensating for temperature changes and process related variables. The level shifted signal is then applied to a gain stage for amplification and delivery to the using circuits. If the ECL input signal is available in complementary form then the complement can be used to drive the source of the gain stage; otherwise it should be connected to V.sub.ref of the ECL circuitry.
    Type: Grant
    Filed: June 30, 1987
    Date of Patent: August 30, 1988
    Assignee: Hewlett-Packard Company
    Inventors: Eldon C. Cornish, Rodney H. Orgill
  • Patent number: 4754165
    Abstract: A low-power high-speed static latch with super buffer outputs is implemented as an MOS integrated circuit by providing resistive cross coupling from those super buffer outputs to inputs through depletion devices that serve in the place of high valued resistors. The resulting static latch exhibits only one gate delay from input to output, has only one enhancement device at a time on, and may be used to create a static MOS shift register.
    Type: Grant
    Filed: July 29, 1986
    Date of Patent: June 28, 1988
    Assignee: Hewlett-Packard Company
    Inventor: Eldon C. Cornish
  • Patent number: 4109183
    Abstract: An oscilloscope has an additional vertical display mode to enable the display of the trigger signal, activating the sweep generating circuit, simultaneously with the display of the normal vertical channels. The triggering source, level, slope and subtle time relationships can be verified and examined continuously and concurrently with the measurements upon the normal vertical channels. The displayed trigger signal is in correct time relationship with the normal vertical channels and the trigger level threshold is identified.
    Type: Grant
    Filed: April 12, 1976
    Date of Patent: August 22, 1978
    Assignee: Hewlett-Packard Company
    Inventors: Joe K. Millard, Eldon C. Cornish