Patents by Inventor Josephus A. M. Van Erp

Josephus A. M. Van Erp 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).

  • LED lamp power management system and method
    Patent number: 8400071
    Abstract: An LED lamp power management system and method including an LED lamp having an LED controller 58; a plurality of LED channels 60 operably connected to the LED controller 58, each of the plurality of LED channels 60 having a channel switch 62 in series with at least one shunted LED circuit 83, the shunted LED circuit 83 having a shunt switch 68 in parallel with an LED source 80. The LED controller 58 reduces power loss in one of the channel switch 62 and the shunt switch 68 when LED lamp electronics power loss (Ploss) exceeds an LED lamp electronics power loss limit (Plim); and each of the channel switches 62 receives a channel switch control signal 63 from the LED controller 58 and each of the shunt switches 68 receives a shunt switch control signal 69 from the LED controller 58.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: March 19, 2013
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: James Gaines, Bernd Clauberg, Josephus A. M. Van Erp
  • LED lamp color control system and method
    Patent number: 8368315
    Abstract: An LED lamp color control system and method including an LED lamp having an LED controller 58; and a plurality of LED channels 60 operably connected to the LED controller 58, each of the plurality of LED channels 60 having a channel switch 62 in series with at least one shunted LED circuit 83, the shunted LED circuit 83 having a shunt switch 68 in parallel with an LED source 80. The LED controller 58 determines whether the LED source 80 is in a feedback controllable range, stores measured optical flux for the LED source 80 when the LED source 80 is in the feedback controllable range, and bypasses storing the measured optical flux when the LED source 80 is not in the feedback controllable range.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: February 5, 2013
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: James Gaines, Bernd Clauberg, Josephus A. M. Van Erp
  • LED LAMP COLOR CONTROL SYSTEM AND METHOD
    Publication number: 20100264834
    Abstract: An LED lamp color control system and method including an LED lamp having an LED controller 58; and a plurality of LED channels 60 operably connected to the LED controller 58, each of the plurality of LED channels 60 having a channel switch 62 in series with at least one shunted LED circuit 83, the shunted LED circuit 83 having a shunt switch 68 in parallel with an LED source 80. The LED controller 58 determines whether the LED source 80 is in a feedback controllable range, stores measured optical flux for the LED source 80 when the LED source 80 is in the feedback controllable range, and bypasses storing the measured optical flux when the LED source 80 is not in the feedback controllable range.
    Type: Application
    Filed: December 2, 2008
    Publication date: October 21, 2010
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: James Gaines, Bernd Clauberg, Josephus A. M. Van Erp
  • LED LAMP POWER MANAGEMENT SYSTEM AND METHOD
    Publication number: 20100244707
    Abstract: An LED lamp power management system and method including an LED lamp having an LED controller 58; a plurality of LED channels 60 operably connected to the LED controller 58, each of the plurality of LED channels 60 having a channel switch 62 in series with at least one shunted LED circuit 83, the shunted LED circuit 83 having a shunt switch 68 in parallel with an LED source 80. The LED controller 58 reduces power loss in one of the channel switch 62 and the shunt switch 68 when LED lamp electronics power loss (Ploss) exceeds an LED lamp electronics power loss limit (Plim); and each of the channel switches 62 receives a channel switch control signal 63 from the LED controller 58 and each of the shunt switches 68 receives a shunt switch control signal 69 from the LED controller 58.
    Type: Application
    Filed: December 2, 2008
    Publication date: September 30, 2010
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: James Gaines, Bernd Clauberg, Josephus A. M. Van Erp