Patents by Inventor Malcolm Cartledge

Malcolm Cartledge 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).

  • Cathode-ray display
    Patent number: 4970443
    Abstract: A cathode-ray display for displaying a trace has a memory to store portions of digitized input signal. An analogue signal is created from the memory and is added to a ramp signal corresponding to the ramp signal utilized to control the field scanning of the cathode-ray display. A further high frequency signal is added to the superimprosed analogue signal and ramp signal. The resultant combined signal is supplied to voltage discrimination means which control a switch which, in turn, controls the electron gun of the cathode-ray display.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: November 13, 1990
    Assignee: Kontron Instruments Holdings NV
    Inventors: Malcolm Cartledge, Trevor V. Montgomery