Patents by Inventor Joseph Christian Jansen

Joseph Christian Jansen 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).

  • HID LAMP IGNITOR
    Publication number: 20120025728
    Abstract: An HID lamp ignitor for a lamp including a transformer (92) having a primary winding (94) inductively coupled to a secondary winding (96) operably connected to a lamp output (98); a first switch circuit (100) operably connected between DC voltage (102) and a junction point (104), the first switch circuit (100) being responsive to a first switch signal (112); a second switch circuit (120) operably connected between the junction point (104) and common (124), the second switch circuit (120) being responsive to a second switch signal (132); and an LC tank circuit (140) having the primary winding (94) operably connected in series with a capacitor (142), the LC tank circuit (140) being operably connected between the junction point (104) and the common (124). The first switch signal (112) alternates with the second switch signal (132) to close the first switch circuit (100) and the second switch circuit (120).
    Type: Application
    Filed: March 11, 2010
    Publication date: February 2, 2012
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Naveen Tumula, Yimin Chen, Jerzy Janczak, Joseph Christian Jansen