Patents by Inventor Stefan David
Stefan David 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).
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Publication number: 20150364886Abstract: The present invention relates to an end cap (104) for a tubular light source the tubular light source configured to be arranged in a lighting fixture comprising a socket, wherein the end cap (104) comprises a housing portion having a connection end, two connector pins (116) at least partly arranged on an outside of the housing portion at the connection end, wherein the connector pins (116) are configured to fit in the sockets of the lighting fixture, a first spring loaded switching element (110) configured to be alternately positioned in an actuated state and a non-actuated state, wherein the first spring loaded switching element (110) protrudes at the connection end of the housing portion in the vicinity of the connector pins (116) when positioned in its non-actuated state, and a second spring loaded switching element (112) configured to be positioned in an actuated state and a non-actuated state, wherein the switching elements (110, 112) are configured to be individually positioned in their respective actuaType: ApplicationFiled: January 7, 2014Publication date: December 17, 2015Inventors: Martijn Evert Paul JANSEN, Hongwu WANG, Mark Johannes Antonius VERHOEVEN, Liang ZHOU, Vincent Stefan David GIELEN, Peter Johannes Martinus BUKKEMS, Georges Marie CALON, Reinier Imre Anton DEN BOER
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Patent number: 9151467Abstract: A lighting device (1) for providing a homogeneous luminous intensity distribution in relation to an optical axis of the lighting device (1), the lighting device (1) comprising: at least one light source (7); a housing (3) arranged to enclose the at least one light source (7), the housing (3) comprising an at least partly transparent housing portion being arranged in parallel to the optical axis of the lighting device (1); and a reflector (4) arranged inside the housing (3), the housing (3) and the reflector (4) together defining a single light mixing chamber (6), wherein the reflector (4) is arranged to reflect light from the at least one light source (7) away from the optical axis of the lighting device (1) towards the at least partly transparent housing portion.Type: GrantFiled: July 14, 2011Date of Patent: October 6, 2015Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Johannes Petrus Maria Ansems, Vincent Stefan David Gielen, Marcus Joannes Van Den Bosch
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Patent number: 9146023Abstract: A lighting module comprising a light source, electrical contacting means electrically connected to the light source and a heat spreader in thermal contact with the light source, the socket comprising at least a first set and a second set of socket contact means for providing an electrical interface with the electrical contacting means of the lighting module, wherein the socket is configured to retain the lighting module in a predetermined position in which electrical contact between the electrical contacting means of the lighting module and one of the first and second set of socket contact means is achieved and electrical contact between the electrical contacting means of the lighting module and the other one of the first and second set of socket contact means is prevented. A lighting module to be received in the socket and a luminaire comprising a lighting module mounted in a socket.Type: GrantFiled: May 30, 2012Date of Patent: September 29, 2015Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Merijn Keser, Peter Johannes Martinus Bukkems, Vincent Stefan David Gielen
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Publication number: 20150159813Abstract: According to an aspect there is provided a base for an electric lamp which may be assembled in an efficient and convenient manner. The base comprises: a tubular enclosure (2) extending along an axial direction between a first and a second end portion of the enclosure, an insulator (4?) attached to the first end portion of the enclosure such that a rotation of the insulator (4?) relative to the enclosure (2) about the axial direction is prevented, the insulator (4?) having an inner portion facing towards an inner space of the enclosure (2), an outer portion facing away from said inner space and at least one channel for receiving a contact pin (5), the channel extending from the outer portion, through the insulator and leading into said inner space. The base further comprises a housing (3) for accommodating electrical circuitry for operating the electric lamp.Type: ApplicationFiled: May 22, 2013Publication date: June 11, 2015Inventor: Vincent Stefan David Gielen
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Publication number: 20150159814Abstract: A LED light source comprises: a first rectifier with a first and a second input terminal for connection to an AC supply voltage source and a first and a second output terminal connected by a first LED-string, a second rectifier having a first and a second input terminal and output terminals, said first input terminal of said second rectifier being coupled to the first input terminal of the first rectifier and the second input terminal of the second rectifier being coupled to the second input terminal of the first rectifier, and the output terminals being connected by a second LED-string, and means for causing a phase shift between the voltages that are present during operation at the output terminals of the first rectifier and the output terminals of the second rectifier respectively. The LED strings are driven by very simple circuitry that can be supplied by mains supply voltage. Due to the phase shift stroboscopic effects are suppressed.Type: ApplicationFiled: January 30, 2014Publication date: June 11, 2015Applicant: Koninklijke Philips N.V.Inventors: Antonius Adrianus Maria MARINUS, Peter DEIXLER, Vincent Stefan David GIELEN
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Publication number: 20150156884Abstract: The present invention relates to a lamp (1) comprising at least two solid state light sources (9), a envelope (2) comprising a light transmittable surface (3) adapted to transmit light from the solid state light sources, a heat sink (4) extending from inside the envelope to the outer surface of the envelope such that it divides the envelope into at least two compartments (16), and a flexible printed circuit (7) at which the solid state light sources are mounted. The flexible printed circuit is attached to the heat sink such that the solid state light sources are distributed in both of the compartments. The present invention is advantageous in that manufacturing, and in particular assembly, of the lamp is facilitated since the number of components to assemble is reduced and the need of soldering (e.g. of wires to circuit boards) is reduced.Type: ApplicationFiled: May 22, 2013Publication date: June 4, 2015Inventor: Vincent Stefan David Gielen
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Patent number: 8946978Abstract: A lighting device (2) comprises a light source (210) having a main forward emission direction (20), and an envelope (220) in which the light source (210) is arranged. The envelope (220) comprises an upper portion (225) having scattering properties and being arranged to reflect a part of the light from the light source (210) laterally and backwardly relative to the main forward emission direction (20) and transmit a part of the light from the light source (210). The light intensity distribution of the lighting device (2) is more uniform, as backward and lateral light intensity is increased while the light in the main forward emission direction (20) is still admitted.Type: GrantFiled: October 19, 2012Date of Patent: February 3, 2015Assignee: Koninklijke Philips N.V.Inventors: Johannes Petrus Maria Ansems, Joris Hubertus Antonius Hagelaar, Peter Johannes Martinus Bukkems, Vincent Stefan David Gielen, Reinier Imre Anton Den Boer, Shi Bei He
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Publication number: 20140369039Abstract: The present invention relates to a heat transferring arrangement (100, 400) for cooling at least one light emitting diode (302), wherein the heat transferring arrangement (100, 400) comprises a centre portion (102, 402) configured for mounting the light emitting diode (302) and adapted to receive heat generated from the light emitting diode (302) when emitting light, and a plurality of elongated heat transferring elements (104), each having a first end portion (106) connected to the centre portion (102, 402) and a second end portion (108) which when inserted in a housing (200) is configured to be in abutment with an inner surface (202) of the housing (200), so that the generated heat is thermally transferred to the housing (200). Advantages with the invention in dudes, at least, that a passive heat transferring arrangement is provided which may reduce the need of an external fan or membranes to provide sufficient cooling.Type: ApplicationFiled: January 20, 2013Publication date: December 18, 2014Applicant: KONINKLIJKE PHILIPS N.V.Inventors: Reinier Imre Anton Den Boer, Juan David Bernal, Kwan Nai Lee, Vincent Stefan David Gielen, Merijn Keser
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Publication number: 20140252942Abstract: A lighting device (2) comprises a light source (210) having a main forward emission direction (20), and an envelope (220) in which the light source (210) is arranged. The envelope (220) comprises an upper portion (225) having scattering properties and being arranged to reflect a part of the light from the light source (210) laterally and backwardly relative to the main forward emission direction (20) and transmit a part of the light from the light source (210). The light intensity distribution of the lighting device (2) is more uniform, as backward and lateral light intensity is increased while the light in the main forward emission direction (20) is still admitted.Type: ApplicationFiled: October 19, 2012Publication date: September 11, 2014Inventors: Johannes Petrus Maria Ansems, Joris Hubertus Antonius Hagelaar, Peter Johannes Martinus Bukkems, Vincent Stefan David Gielen, Reinier Imre Anton Den Boer, Shi Bei He
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Publication number: 20140204581Abstract: The present invention relates to a lighting device (1). The lighting device comprises a light source(7) arranged at a base (2) of the lighting device, the light source having a main forward emission direction (12). The lighting device further comprises a radio frequency, RF, antenna (10) configured to receive signals for controlling the lighting device and a reflector (9) arranged to reflect light from the light source laterally and backwardly. The RF antenna is arranged at the reflector. The present invention is advantageous in that the RF reception of the lighting device is improved.Type: ApplicationFiled: September 11, 2012Publication date: July 24, 2014Applicant: KONINKLIJKE PHILIPS N.V.Inventors: Lambertus Adrianus Marinus De Jong, Marcus Joannes Van Den Bosch, Joris Hubertus Antonius Hagelaar, Vincent Stefan David Gielen
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Patent number: 8775437Abstract: Concepts and technologies are described herein for dynamically reranking search results based upon source authority. A search query is received and analyzed. One or more topics are identified in the search query. An authority index is searched to identify authoritative sources for content relating to the identified topic(s). Promoted results corresponding to content generated by the authoritative sources relating to the identified topics are obtained. The promoted results can be presented to an entity requesting the search, or injected into search results. Contribution dimensions associated with the promoted results can be determined, and filters based upon the contribution dimensions can be generated and used by an entity to dynamically manipulate the search results.Type: GrantFiled: April 1, 2010Date of Patent: July 8, 2014Assignee: Microsoft CorporationInventors: Stefan David Weitz, Alexander George Gounares, Patrick A. Kinsel
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Publication number: 20140153261Abstract: An illumination device comprising a light source (110). The illumination device comprises a thermally conducting carrier (130) arranged to support the light source. Furthermore, the illumination device comprises an envelope (120), wherein the carrier and the envelope together form a single compartment (140) at least partially enclosing the light source. The carrier is arranged to transfer heat (160) away from the light source to the envelope, and the envelope is arranged to dissipate heat (170) away from the illumination device. The carrier and the envelope of the illumination device may further form a single integrated part.Type: ApplicationFiled: July 9, 2012Publication date: June 5, 2014Applicant: KONINKLIJKE PHILIPS N.V.Inventors: Antonius Adrianus Maria Marinus, Vincent Stefan David Stefan David Gielen, Peter Johannes Martinus Bukkems
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Publication number: 20140092582Abstract: The invention relates to a socket (150, 250, 350) for receiving a lighting module (102, 102?, 202, 302?, 302?, 302??) comprising a light source (106, 209), electrical contacting means (108?, 108?, 108??, 215, 381; 371, 382; 372, 383; 373) electrically connected to the light source (106, 209) and a heat spreader (140, 240, 340) in thermal contact with the light source (106, 209), the socket (150, 250, 350) comprising at least a first set (131, 231, 331) and a second set (132, 232, 332) of socket contact means for providing an electrical interface with the electrical contacting means (108?, 108?, 108??, 215, 381; 371, 382; 372, 383; 373) of the lighting module (102, 102?, 202, 302?, 302?, 302??), wherein the socket (150, 250, 350) is configured to retain the lighting module (102, 102?, 202, 302?, 302?, 302??) in a predetermined position in which electrical contact between the electrical contacting means (108, 215, 381; 371, 382; 372, 383; 373) of the lighting module (102, 102?, 202, 302?, 302?, 302??) and one oType: ApplicationFiled: May 30, 2012Publication date: April 3, 2014Applicant: KONINKLIJKE PHILIPS N.V.Inventors: Merijn Keser, Peter Johannes Martinus Bukkems, Vincent Stefan David Gielen
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Publication number: 20140043788Abstract: The invention provides an illumination device comprising an envelope enclosing a light source, preferably a LED, and a luminescent material. The envelope comprises a transmissive part, and a reflective part, wherein the reflective part comprises a reflective ceramic material. The ceramic material can be used for heat dissipation.Type: ApplicationFiled: September 20, 2013Publication date: February 13, 2014Inventors: Vincent Stefan David GIELEN, Berend Jan Willem TER WEEME, Johannes Petrus Maria ANSEMS, Cornelia Titia STAATS, Theodorus Gerardus Marinus Maria KAPPEN, Theodoor Cornelis TREURNIET
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Publication number: 20140029247Abstract: An end cap (104) for a tubular light source (102), the tubular light source (102) being configured to be arranged in a lighting fixture (106) comprising at least one socket (108), wherein the end cap (104) comprises a housing (202), two connector pins (112) at least partly arranged on an outside of the housing (202) and adapted to fit in the socket, and a switch assembly comprising a switch element (110) arranged in between the two connector pins (112) and at least partly protruding from an opening in the housing (202), wherein a first side of the switch element (110) is adapted to fit into a slot in a socket (108) and wherein the switch assembly is configured to form a conductive path between the socket (108) and the tubular light source (102) through an axial rotation of the switch element (110) in relation to the housing (202) as the tubular light source (102) is rotatably mounted in the fixture (106).Type: ApplicationFiled: March 22, 2012Publication date: January 30, 2014Applicant: KONINKLIJKE PHILIPS N.V.Inventors: Vincent Stefan David Gielen, Peter Johannes Martinus Bukkems
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Publication number: 20130332592Abstract: Described herein are technologies pertaining to disambiguating identities/accounts over a plurality of online services. Public data streams pertaining to accounts of different online services are analyzed, and a determination is made that the accounts are owned by a same user. A searchable profile is generated for the user that comprises data that indicates that the user represented by the profile owns the accounts. The profile is claimable by the user such that the user is enabled to customize contents of the profile.Type: ApplicationFiled: August 12, 2013Publication date: December 12, 2013Applicant: Microsoft CorporationInventors: Patrick Kinsel, Matthew Graham Dyor, Stefan David Weitz
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Patent number: 8528053Abstract: Described herein are technologies pertaining to disambiguating identities/accounts over a plurality of online services. Public data streams pertaining to accounts of different online services are analyzed, and a determination is made that the accounts are owned by a same user. A searchable profile is generated for the user that comprises data that indicates that the user represented by the profile owns the accounts. The profile is claimable by the user such that the user is enabled to customize contents of the profile.Type: GrantFiled: June 23, 2010Date of Patent: September 3, 2013Assignee: Microsoft CorporationInventors: Patrick Kinsel, Matthew Graham Dyor, Stefan David Weitz
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Publication number: 20130120965Abstract: A lighting device (1) for providing a homogeneous luminous intensity distribution in relation to an optical axis of the lighting device (1), the lighting device (1) comprising: at least one light source (7); a housing (3) arranged to enclose the at least one light source (7), the housing (3) comprising an at least partly transparent housing portion being arranged in parallel to the optical axis of the lighting device (1); and a reflector (4) arranged inside the housing (3), the housing (3) and the reflector (4) together defining a single light mixing chamber (6), wherein the reflector (4) is arranged to reflect light from the at least one light source (7) away from the optical axis of the lighting device (1) towards the at least partly transparent housing portion.Type: ApplicationFiled: July 14, 2011Publication date: May 16, 2013Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Johannes Petrus Maria Ansems, Vincent Stefan David Gielen, Marcus Joannes Van Den Bosch
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Patent number: 8383179Abstract: A self-heating container (1, 2) to prepare a fresh hot beverage containing a compartment containing a heat-delivering substance (8) to heat the liquid in the device, an airtight compartment (11) containing a measured amount of liquid to be heated, an airtight compartment containing a measured amount of dry matter for preparing a hot beverage, a filter (11) for separating the dry matter from the liquid (optional) and a compartment containing a measured amount of liquid to actuate the heat-delivering substance (8) with the attribute that the heat-delivering substance is actuated (13) simultaneously with the release of the dry matter to the compartment containing the measured amount of liquid to be heated during actuation.Type: GrantFiled: February 14, 2008Date of Patent: February 26, 2013Inventor: Vincent Stefan David Gielen
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Patent number: 8260789Abstract: Concepts and technologies are described herein for authority ranking for real time and social search. An authority index configured to store data relating to sources is generated. Data relating to the sources, including an authority value, are generated and stored at the authority index. The authority value may be defined as a function of source, topic, and point of view (“POV”), as well as other data, if desired, and may be determined based upon one or more ranking functions. The ranking functions are determined, and data corresponding to the ranking functions is obtained. Each of the ranking functions may be weighted according to a weighting function, a confidence value or interval, one or more time functions, and/or other methods. The obtained authority value may be used for affecting ranking of search results or for other purposes.Type: GrantFiled: April 1, 2010Date of Patent: September 4, 2012Assignee: Microsoft CorporationInventors: Susan T. Dumais, Stefan David Weitz, Alexander George Gounares, David James Gemmell, Paul Yiu