Patents by Inventor Johannes Hendrikus Theodorus VAN Roosmalen

Johannes Hendrikus Theodorus VAN Roosmalen 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).

  • Color television camera having at least two pick-up tubes
    Patent number: 4051512
    Abstract: A color television camera having at least two pick-up tubes while the electromagnetic deflection and the electrostatic focussing is done in spatially removed places. A voltage source for supplying the anodes of the pick-up tubes is not stabilized but by affecting the deflection, registration of the line raster is maintained for voltage variations. Control of the voltage source offers the possibility for electronic "zooming" of the scene to be recorded.
    Type: Grant
    Filed: March 31, 1976
    Date of Patent: September 27, 1977
    Assignee: U.S. Philips Corporation
    Inventors: Johannes Hendrikus Theodorus VAN Roosmalen, Pieter Zuidhof