Patents by Inventor Koen Johanna Guillaume Holtman

Koen Johanna Guillaume Holtman 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).

  • Patent number: 10405164
    Abstract: This invention relates to a method for transmitting a message to a wireless device, the wireless device comprising a set of at least two distinct logical entities, the wireless device being arranged for receiving a message during discontinuous reception opportunities, the method comprising, prior to transmission of the message, the steps of (a) selecting a transmission mode from a set of transmission modes comprising a first transmission mode and a second transmission mode, where, in the first transmission mode, the reception opportunities for the message are limited to the reception opportunities that are associated with a single selected logical entity of the set of at least two logical entities, and in the second transmission mode, the reception opportunities for the message correspond to combined reception opportunities associated with at least two logical entities; and (b) causing the transmission of the message during one of the reception opportunities corresponding to the selected transmission mode.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: September 3, 2019
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Bozena Erdmann, Koen Johanna Guillaume Holtman
  • Patent number: 10405258
    Abstract: The invention relates to a proxy node comprising means for managing a proxy table, a receiver for receiving a message from a first resource restricted device, said message being intended to at least one corresponding destination device, control means for checking whether an entry for the first resource restricted device is included in the set of entries of the proxy table, the set of entries of the proxy table indicating the set of resource-restricted devices the proxy node is in charge of, a transmitter for forwarding the message depending on the result of the proxy table checking, the means for managing the proxy table being arranged for cleaning the proxy table of the entry relative to the resource-restricted device by monitoring the relative usage of the proxy node for forwarding messages for the resource restricted device with the usage of competitor proxy nodes for forwarding messages for the resource restricted device.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: September 3, 2019
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Bozena Erdmann, Koen Johanna Guillaume Holtman, Armand Michel Marie Lelkens, Esko Olavi Dijk, Ludovicus Marinus Gerardus Maria Tolhuizen, Bas Willibrord De Wit
  • Patent number: 10366245
    Abstract: The present invention relates to a system and method for managing proxy device assignment in a wireless communication network where proxy devices operate as relay devices forwarding signals from a resource restricted device to a destination device. The method comprises dividing an identifier space of the resource restricted device into at least two parts, and assigning at least one of the at least two parts of the identifier space to at least one proxy device of the wireless communication network wherein the proxy device assigned to a first part of the identifier space is responsible for the resource restricted device transmitting a signal comprising an identifier falling within the first part of the identifier space.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: July 30, 2019
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Bozena Erdmann, Koen Johanna Guillaume Holtman
  • Patent number: 10264435
    Abstract: The invention relates to a user-operated device, a method and computer program for providing acknowledgement indicators performed by a user-operated device within a communication network. The user-operated device for receiving user input to trigger in a user-perceivable reaction of the user-operated device or a system controlled by it, the user-operated comprising means for detecting an actuation pattern of the user-operated device upon actuation of a user; means for comparing the detected actuation pattern with a predetermined pattern; and means for generating an acknowledgement indicator in dependence of a comparison result of the actuation pattern with the predetermined pattern.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: April 16, 2019
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Bozena Erdmann, Koen Johanna Guillaume Holtman
  • Patent number: 10243689
    Abstract: This invention generally relates to interference mitigation, and more specifically to interference mitigation in wireless communications networks. The proposed solution takes advantage of the clear channel assessment (CCA) function used by WLAN networks. Hence, by jamming the interfering WLAN channel during a predetermined time period, the interfering WLAN network is forced to withhold transmissions on the WLAN interfering channel during a backoff period of time. The solution of the subject application makes use of this backoff period to enable a WPAN network to transmit critical information such as, but not limited to, a request for changing the current working frequency.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: March 26, 2019
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Zhizhong Zhang, Koen Johanna Guillaume Holtman, Peilang Dong, Jun Yao, Hai Tao Liu, Gang Wang, Dunfa Chen
  • Patent number: 10091826
    Abstract: In a wireless environment, a dockee informs a docking station of the dockee's access point connection credentials and parameters in order for the docking station to become an intermediate proxy for the connection between the dockee and the access point. The docking station takes over the connection between the dockee and the access point.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: October 2, 2018
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Walter Dees, Koen Johanna Guillaume Holtman
  • Publication number: 20180206095
    Abstract: The invention relates to a user-operated device, a method and computer program for providing acknowledgement indicators performed by a user-operated device within a communication network. The user-operated device for receiving user input to trigger in a user-perceivable reaction of the user-operated device or a system controlled by it, the user-operated comprising means for detecting an actuation pattern of the user-operated device upon actuation of a user; means for comparing the detected actuation pattern with a predetermined pattern; and means for generating an acknowledgement indicator in dependence of a comparison result of the actuation pattern with the predetermined pattern.
    Type: Application
    Filed: June 30, 2016
    Publication date: July 19, 2018
    Applicant: PHILIPS LIGHTING HOLDING B.V.
    Inventors: BOZENA ERDMANN, KOEN JOHANNA GUILLAUME HOLTMAN
  • Patent number: 9992727
    Abstract: The invention relates to a proxy node comprising means for managing a proxy table, a receiver for receiving a message from a first resource restricted device, said message being intended to at least one corresponding destination device, control means for checking whether an entry for the first resource restricted device is included in the set of entries of the proxy table, the set of entries of the proxy table indicating the set of resource-restricted devices the proxy node is in charge of, a transmitter for forwarding the message depending on the result of the proxy table checking, the means for managing the proxy table being arranged for cleaning the proxy table of the entry relative to the resource-restricted device by monitoring the relative usage of the proxy node for forwarding messages for the resource restricted device with the usage of competitor proxy nodes for forwarding messages for the resource restricted device.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: June 5, 2018
    Assignee: PHILIPS LIGHTING HOLDING B.V.
    Inventors: Bozena Erdmann, Koen Johanna Guillaume Holtman, Armand Michel Marie Lelkens, Esko Olavi Dijk, Ludovicus Marinus Gerardus Maria Tolhuizen, Bas Willibrord De Wit
  • Publication number: 20180115861
    Abstract: This invention relates to a method for transmitting a message to a wireless device, the wireless device comprising a set of at least two distinct logical entities, the wireless device being arranged for receiving a message during discontinuous reception opportunities, the method comprising, prior to transmission of the message, the steps of (a) selecting a transmission mode from a set of transmission modes comprising a first transmission mode and a second transmission mode, where, in the first transmission mode, the reception opportunities for the message are limited to the reception opportunities that are associated with a single selected logical entity of the set of at least two logical entities, and in the second transmission mode, the reception opportunities for the message correspond to combined reception opportunities associated with at least two logical entities; and (b) causing the transmission of the message during one of the reception opportunities corresponding to the selected transmission mode.
    Type: Application
    Filed: December 12, 2017
    Publication date: April 26, 2018
    Inventors: Bozena Erdmann, Koen Johanna Guillaume Holtman
  • Patent number: 9885775
    Abstract: A luminaire is provided for use in determining an orientation of a camera based on an image of the luminaire captured by the camera. The luminaire comprises a light source having an on state in which it emits light and an off state in which it does not emit light, and being of a shape having a symmetry in the off state. The luminaire also comprises a controller configured to control the light source to emit said light in the on state with a lighting effect that breaks said symmetry. A device comprising receives an image of the light source from a camera, and determines an orientation of the camera relative to the light source by performing a geometric perspective calculation based on the image of the light source. An ambiguity in the orientation is resolved by detecting the asymmetry in the light emitted by the light source.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: February 6, 2018
    Assignee: PHILIPS LIGHTING HOLDING B.V.
    Inventor: Koen Johanna Guillaume Holtman
  • Patent number: 9872131
    Abstract: This invention relates to a method for transmitting a message to a wireless device, the wireless device comprising a set of at least two distinct logical entities, the wireless device being arranged for receiving a message during discontinuous reception opportunities, the method comprising, prior to transmission of the message, the steps of (a) selecting a transmission mode from a set of transmission modes comprising a first transmission mode and a second transmission mode, where, in the first transmission mode, the reception opportunities for the message are limited to the reception opportunities that are associated with a single selected logical entity of the set of at least two logical entities, and in the second transmission mode, the reception opportunities for the message correspond to combined reception opportunities associated with at least two logical entities; and (b) causing the transmission of the message during one of the reception opportunities corresponding to the selected transmission mode.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: January 16, 2018
    Assignee: PHILIPS LIGHTING HOLDING B.V.
    Inventors: Bozena Erdmann, Koen Johanna Guillaume Holtman
  • Publication number: 20170257813
    Abstract: The invention relates to a proxy node comprising means for managing a proxy table, a receiver for receiving a message from a first resource restricted device, said message being intended to at least one corresponding destination device, control means for checking whether an entry for the first resource restricted device is included in the set of entries of the proxy table, the set of entries of the proxy table indicating the set of resource-restricted devices the proxy node is in charge of, a transmitter for forwarding the message depending on the result of the proxy table checking, the means for managing the proxy table being arranged for cleaning the proxy table of the entry relative to the resource-restricted device by monitoring the relative usage of the proxy node for forwarding messages for the resource restricted device with the usage of competitor proxy nodes for forwarding messages for the resource restricted device.
    Type: Application
    Filed: May 17, 2017
    Publication date: September 7, 2017
    Inventors: Bozena ERDMANN, Koen Johanna Guillaume HOLTMAN, Armand Michel Marie LELKENS, Esko Olavi DIJK, Ludovicus Marinus Gerardus Maria TOLHUIZEN, Bas Willibrord DE WIT
  • Publication number: 20170207877
    Abstract: This invention generally relates to interference mitigation, and more specifically to interference mitigation in wireless communications networks. The proposed solution takes advantage of the clear channel assessment (CCA) function used by WLAN networks. Hence, by jamming the interfering WLAN channel during a predetermined time period, the interfering WLAN network is forced to withhold transmissions on the WLAN interfering channel during a backoff period of time. The solution of the subject application makes use of this backoff period to enable a WPAN network to transmit critical information such as, but not limited to, a request for changing the current working frequency.
    Type: Application
    Filed: May 22, 2015
    Publication date: July 20, 2017
    Inventors: ZHIZHONG ZHANG, KOEN JOHANNA GUILLAUME HOLTMAN, PEILANG DONG, JUN YAO, HAI TAO LIU, GANG WANG, DUNFA CHEN
  • Patent number: 9693410
    Abstract: Methods, apparatus, and systems are disclosed herein for projecting lighting effects (124, 224, 324, 424) carrying light messages onto surfaces. A first of one or more light-emitting diodes (LEDs, 554) of a lighting fixture (120, 220, 320, 420, 520) may be selectively energized to produce a first coded light signal conveying a first light message associable with a first location. Light emitted from the first LED may be projected onto a first surface, e.g., as a spatially-limited lighting effect. In some embodiments, a second of the one or more LEDs of the lighting fixture may be selectively energized to produce a second coded light signal conveying a second light message associable with a second location distinct from the first location. Light emitted from the second LED may be projected onto the first surface or a second surface. Alternatively, lighting effects of various shapes and hues may convey information.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: June 27, 2017
    Assignee: PHILIPS LIGHTING HOLDING B.V.
    Inventors: Koen Johanna Guillaume Holtman, Robert James Davies
  • Patent number: 9686030
    Abstract: Efficiency for mixing audio signals from one or more portable user devices in an audio system employing a number of docking station is achieved by a docking station that includes a controller for detecting the presence of an activated mixer associated with another docking station in the system. The controller activates its associated mixer when no activated mixer associated with another docking host in the system is detected. When its associated mixer is activated, the controller in the one docking station causes its associated mixer to be connected both to the audio sound system for supplying an input signal thereto and indirectly to the output(s) of the one or more portable devices. Transfer of mixing from one docking station to another in the same system upon the occurrence of a particularly defined event is also described.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: June 20, 2017
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Koen Johanna Guillaume Holtman, Walter Dees
  • Publication number: 20170170906
    Abstract: The disclosure relates to symbols of data being encoded into visible light emitted by a light source, at a symbol rate fsym having a symbol period Tsym=1/fsym. Each of the symbols is encoded as one of a set of at least two different symbol waveforms formed in a level of the emitted light as a function of time, each of the symbol waveforms representing a respective one of a corresponding set of different data values. The difference between the symbol waveforms, which represents the different data values, is formed only within a predetermined time window at a given phase within the symbol period, the predetermined time window having a duration less than 0.75·Tsym, the light level inside this time window being substantially different for the different symbol waveforms, and the light level outside the time window being substantially the same for the different symbol waveforms.
    Type: Application
    Filed: June 24, 2015
    Publication date: June 15, 2017
    Inventor: Koen Johanna Guillaume HOLTMAN
  • Publication number: 20170127221
    Abstract: This invention relates to a method for transmitting a message to a COM wireless device, the wireless device comprising a set of at least two distinct logical entities, the wireless device being arranged for receiving a message during discontinuous reception opportunities, the method comprising, prior to transmission of the message, the steps of (a) selecting a transmission mode from a set of transmission modes comprising a first transmission mode and a second transmission mode, where, in the first transmission mode, the reception opportunities for the message are limited to the reception opportunities that are associated with a single selected logical entity of the set of at least two logical entities, and in the second transmission mode, the reception opportunities for the message correspond to combined reception opportunities associated with at least two logical entities; and (b) causing the transmission of the message during one of the reception opportunities corresponding to the selected transmission mode
    Type: Application
    Filed: June 12, 2015
    Publication date: May 4, 2017
    Inventors: BOZENA ERDMANN, KOEN JOHANNA GUILLAUME HOLTMAN
  • Patent number: 9578442
    Abstract: Configurability and controllability over the initiation of automatic docking for a portable device seeking to dock wirelessly with a docking station in a wireless docking system environment are achieved by the method and system disclosed herein. The portable device detects the docking station in the wireless docking environment. When the docking station is detected, a communication path is established between the portable device and the docking station. A received signal characteristic level is measured for a received signal. The received signal characteristic level is compared to a determined threshold so that, at least when the received signal level exceeds the determined threshold, docking the portable device to the docking station is able to be completed.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: February 21, 2017
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Walter Dees, Koen Johanna Guillaume Holtman
  • Publication number: 20170047982
    Abstract: The present invention relates to a system and method for managing proxy device assignment in a wireless communication network where proxy devices operate as relay devices forwarding signals from a resource restricted device to a destination device. The method comprises dividing an identifier space of the resource restricted device into at least two parts, and assigning at least one of the at least two parts of the identifier space to at least one proxy device of the wireless communication network wherein the proxy device assigned to a first part of the identifier space is responsible for the resource restricted device transmitting a signal comprising an identifier falling within the first part of the identifier space.
    Type: Application
    Filed: August 4, 2016
    Publication date: February 16, 2017
    Inventors: BOZENA ERDMANN, KOEN JOHANNA GUILLAUME HOLTMAN
  • Patent number: 9565267
    Abstract: The present invention relates to several techniques for managing the contents of proxy tables in ways that optimize performance, latency, and reliability for communication networks, while ensuring a certain number of early-acting proxies per restricted device. An entity is allowed to keep a required number of proxies per resource-restricted device by removing or adding proxy table entries. Furthermore, the entity is allowed to keep track of early-acting proxies based on forwarding strategies, reporting strategies and/or polling strategies. Thereby, proxy table entries can be controlled to optimize overall system performance and reliability characteristics.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: February 7, 2017
    Assignee: PHILIPS LIGHTING HOLDING B.V.
    Inventors: Koen Johanna Guillaume Holtman, Bozena Erdmann