Patents by Inventor Mark Carpau

Mark Carpau 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).

  • METHOD OF OPERATING A SMI SENSOR AND CORRESPONDING SENSOR DEVICE
    Publication number: 20120176595
    Abstract: The present invention refers to a method of operating a self-mixing interference sensor and a corresponding self-mixing interference sensor device. In the method the laser (1) of the device is controlled to periodically emit a laser pulse followed by an emission period of laser radiation having a lower amplitude. The pulse width of the laser pulse is selected such that the pulse after reflection at the object (3) re-enters the laser (1) during the emission period of laser radiation with lower amplitude. The corresponding SMI signal has an increased signal to noise ratio.
    Type: Application
    Filed: August 10, 2010
    Publication date: July 12, 2012
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Alexander Marc Van Der Lee, Mark Carpau, Holger Moench, Marcel Schemmann