Patents by Inventor Klaas Jacob Lulofs

Klaas Jacob Lulofs 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).

  • Publication number: 20150035452
    Abstract: The invention relates to LED lighting system comprising a power supply circuit and one or more LED modules. The power supply circuit is equipped with input terminals (K1, K2) for connection to a supply voltage source and first and second output terminals (K3, K4), and a driver circuit (I, II) coupled between the input terminals and the first and second output terminals for generating a LED current. The driver circuit (I, II) comprises a driver control circuit (II) equipped with an input terminal (K7) for increasing or decreasing the LED current in dependency of a signal present at the input terminal of the driver control circuit.
    Type: Application
    Filed: April 2, 2013
    Publication date: February 5, 2015
    Inventors: Harald Josef Günther Radermacher, Geert Willem Van Der Veen, Wilhelmus Josephus Cornelissen, Lino Adriaan Nicolaas Wilhelm De Wit, Tijmen Cornelis Van Bodegraven, Peter Hubertus Franciscus Deurenberg, Patrick Alouisius Martina De Bruycker, Klaas Jacob Lulofs
  • Publication number: 20120285447
    Abstract: A nebulizer (10) comprises a head detachably coupled to a body. The head comprises nebulizing means (42, 40, 44), an air channel (50) and a flow sensor (52). A nebulized liquid is released in an air channel (50) that ends in a mouth piece 70 through which a user inhales (5) and exhales (7). The inhaling and exhaling causes a flow in the air channel which is detected with the flow sensor (52). The nebulizing means are controlled by control means (60, 62) included in the body.
    Type: Application
    Filed: July 20, 2010
    Publication date: November 15, 2012
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Alphonsus Tarcisius Jozef Maria Schipper, Michael James Robbert Leppard, Jonathan Stanley Harold Denyer, Tony Dyche, Klaas Jacob Lulofs, Jaap Roger Haartsen
  • Publication number: 20110012598
    Abstract: A radio frequency coil comprises: a coil unit (30, 100) including one or more conductive radio frequency receive elements (32, 110) tuned to receive a magnetic resonance signal and an on-board active electronic component (34, 114, 118) operatively coupled with the one or more conductive radio frequency receive elements; and a power coupling element (40, 46, 134, 138, 140) configured to non-conductively receive electrical power from a power delivery element (44, 132, 136) during a magnetic resonance acquisition session to power the on-board active electronic component (114, 118) during the magnetic resonance acquisition session (e.g. wirelessly by inductive coupling or by capacitive coupling). In some embodiments, the power coupling element (134, 138, 140) is a component of the coil unit (102), and the radio frequency coil further comprises a base coil unit (104) including the power delivery element (132, 136) operatively combinable with the coil unit (102) to define an annular coil.
    Type: Application
    Filed: November 27, 2008
    Publication date: January 20, 2011
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Marinus Johannes Adrianus Maria van Helvoort, Johan Samuel van den Brink, Marc Paul Saes, Alexander Christiaan de Rijck, Klaas Jacob Lulofs
  • Patent number: 7759873
    Abstract: An identification system for a light radiation source (103) having a control circuit (107) for communicating with an identification circuit (108) associated with the light radiation source, wherein the identification circuit is arranged for storing data relating to the light radiation source. During operation, the control circuit communicates with the identification circuit via a signal path comprising at least a portion of a first electric wire (112) provided for energizing the light radiation source such that it is used as a first transmitting antenna for communicating with the identification circuit. The operation of the light radiation source is controlled in dependence on the data retrieved from the identification circuit. Depending on the result of the identification, operation of the light radiation source can be authorized or prevented, thus blocking the use of an incorrect radiation source for a given application.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: July 20, 2010
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Olaf Mastenbroek, Klaas Jacob Lulofs
  • Publication number: 20080185539
    Abstract: An identification system for a light radiation source (103) having a control circuit (107) for communicating with an identification circuit (108) associated with the light radiation source, wherein the identification circuit is arranged for storing data relating to the light radiation source. During operation, the control circuit communicates with the identification circuit via a signal path comprising at least a portion of a first electric wire (112) provided for energizing the light radiation source such that it is used as a first transmitting antenna for communicating with the identification circuit. The operation of the light radiation source is controlled in dependence on the data retrieved from the identification circuit. Depending on the result of the identification, operation of the light radiation source can be authorized or prevented, thus blocking the use of an incorrect radiation source for a given application.
    Type: Application
    Filed: April 20, 2006
    Publication date: August 7, 2008
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventors: Olaf Mastenbroek, Klaas Jacob Lulofs