Patents by Inventor Howard Lankford

Howard Lankford 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).

  • Apparatus for providing a test signal from a device under test (DUT) to a measurement instrument
    Patent number: 11573249
    Abstract: An apparatus for providing a test signal from a device under test (DUT) to a measurement instrument is disclosed. The apparatus includes a probe head configured to receive an electrical signal from the DUT. The probe head includes an electro-optic modulator. The apparatus also includes a control box, which includes an optical source. The optical source is configured to provide an input optical signal to the electro-optic modulator, which is configured to provide an output optical signal based on the electrical signal from the DUT. The control box also includes an optical bias control circuit. Only a bias control signal is provided to the electro-optic modulator.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: February 7, 2023
    Assignee: Keysight Technologies, Inc.
    Inventors: Ryan Scott, Bogdan Szafraniec, Mike T. Mctigue, Howard Lankford
  • APPARATUS FOR PROVIDING A TEST SIGNAL FROM A DEVICE UNDER TEST (DUT) TO A MEASUREMENT INSTRUMENT
    Publication number: 20210190830
    Abstract: An apparatus for providing a test signal from a device under test (DUT) to a measurement instrument is disclosed. The apparatus includes a probe head configured to receive an electrical signal from the DUT. The probe head includes an electro-optic modulator. The apparatus also includes a control box, which includes an optical source. The optical source is configured to provide an input optical signal to the electro-optic modulator, which is configured to provide an output optical signal based on the electrical signal from the DUT. The control box also includes an optical bias control circuit. Only a bias control signal is provided to the electro-optic modulator.
    Type: Application
    Filed: December 23, 2019
    Publication date: June 24, 2021
    Inventors: Ryan Scott, Bogdan Szafraniec, Mike T. Mctigue, Howard Lankford