Patents by Inventor Bruno Mertz

Bruno Mertz 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: 4556966
    Abstract: The angular velocity of an information element contained in the precut track of an information carrier disk is controlled by means of a concentric circular ring located internally with respect to the precut track and constituted by mark zones uniformly spaced in angular sectors. A light beam is projected onto the circular ring and the emergent beam is modulated as a function of the mark zones and blank zones which form the circular ring. Errors arising from eccentric displacement of the track can thus be corrected and the rate of travel of information can be controlled in relation to the reading or recording light beam.
    Type: Grant
    Filed: April 27, 1982
    Date of Patent: December 3, 1985
    Assignee: Thomson-CSF
    Inventors: Claude Bricot, Pierre Berthet, Bruno Mertz, Jean-Louis Gerard