Patents by Inventor Jheroen Dorenbosch

Jheroen Dorenbosch 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: 8736685
    Abstract: A method to measure a brightness response of a camera comprises obtaining a plurality of brightness measurements and determining for one or more of the plurality of brightness measurements a captured brightness of the captured image. Obtaining each of the plurality of brightness measurements includes presenting to the camera at least one test sample having known brightness, capturing via the camera an image of the at least one test sample, and presenting to the camera at least one compensation sample having compensating brightness selected based on the known brightness of the at least one test sample. The at least one test sample and the at least one compensation sample are selectable and presentable in combination such that an average exposure interpreted by the camera is substantially the same for each of the plurality of brightness measurements.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: May 27, 2014
    Assignee: Anritsu Company
    Inventor: Jheroen Dorenbosch
  • Publication number: 20080080527
    Abstract: A method and apparatus for passing a message at a gateway between a first network and second network. A message is received from the first network. Header information is added to the message indicative of an address associated with the gateway. Header information is added to the message indicative of an address associated with the first network. The message is forwarded from the gateway to the second network.
    Type: Application
    Filed: September 29, 2006
    Publication date: April 3, 2008
    Applicant: MOTOROLA, INC.
    Inventor: Jheroen Dorenbosch
  • Publication number: 20070217366
    Abstract: A communication unit (10) includes a mobility agent (225) for providing handoffs between a cellular network and a wireless local area network (11). The communication unit (10) determines if it should switch between the wireless local area network (11) and the cellular network for obtaining service, requests a handoff to the wireless local area network (11) or to the cellular network by sending a SIP message addressed to either a public number (229) or a private number (231) associated with the communication unit (10) upon making the determination. The communication unit (10) accepts a new call from an enterprise server (12) over the determined network. Corresponding methods of providing a hand-off is described.
    Type: Application
    Filed: May 14, 2007
    Publication date: September 20, 2007
    Applicant: MOTOROLA, INC.
    Inventors: Uday Sagi, Jheroen Dorenbosch, Anand Alen
  • Publication number: 20070183422
    Abstract: A process (100) may be implemented subsequent to facilitating (101), for a first end user, a transmission of at least one data packet for a first multicast transmission using an infrastructure-supplied source address. This process can generally comprise using (104) that infrastructure-supplied source address to facilitate transmission of at least one data packet for a second end user for a second multicast transmission.
    Type: Application
    Filed: February 6, 2006
    Publication date: August 9, 2007
    Inventors: Cynthia Jung, Jheroen Dorenbosch
  • Publication number: 20070168555
    Abstract: A system (100) and method (200) of setting up a multicast session in a wireless system having at least one access point serving a plurality of wireless terminals that are members of a multicast group can include collecting (202) a member set representing members of the multicast group and receiving (206) a multicast packet by the access point. The method further determines (208) a target set of terminals receiving the multicast packet. If a number of terminals in the target set is greater or equal to a threshold, then the multicast packet is multicast (214) to a multicast address. If the number of terminals in the target set is less than the threshold and greater than zero, then a copy of the multicast packet is unicast (216) to the unicast address of each terminal. The method can also suppress (218) the multicast packet if the number of terminals is zero.
    Type: Application
    Filed: January 18, 2006
    Publication date: July 19, 2007
    Inventor: Jheroen Dorenbosch
  • Publication number: 20070133517
    Abstract: A method and apparatus for selectively redirecting session control for a user equipment in a telecommunication system include: a home server (108), a proxy server (204, 206), and a user equipment (202) for transmitting a breakout request (208, 210) to the proxy server (204, 206) to break out of an initial service route that includes the home server (108) to a direct service route that bypasses the home server (108).
    Type: Application
    Filed: December 13, 2005
    Publication date: June 14, 2007
    Inventors: Trent Miller, Uri Baniel, Jheroen Dorenbosch, James Kovac
  • Publication number: 20070115961
    Abstract: A method for transmitting data from a participant device in a session in an Internet Protocol (IP) system (100) is provided. The method comprises sending (405) one or more a first Real-time Transport Protocol (RTP) packet of the session to a first address. The method further comprises sending (410) one or more a first Real-time Transport Control Protocol (RTCP) packet of the session to a second address. The participant device sends the one or more a first RTP packet and the one or more a first RTCP packet.
    Type: Application
    Filed: November 18, 2005
    Publication date: May 24, 2007
    Inventors: Jheroen Dorenbosch, Anatoly Agulnik, Janus Burks, Peter Drozt
  • Publication number: 20070111708
    Abstract: The present invention relates to a method and system of a method and system for leveraging a 3G authentication to obtain a 2G authentication for a mobile station (135) using a provisional authentication agent (140). The mobile station (135) first establishes a provisional authentication (210, 215) in the 2G wireless communication system (105) using a second set of authentication parameters and based on the provisional authentication, negotiates a 3G authentication (220) with a 3G wireless communication system (115) that the mobile station was previously operating in and had authenticated to. Using the first set of authentication parameters received from the 3G wireless communication network (115), the mobile station (135) completes a true 2G authentication (230) in the 2G wireless communication system (105).
    Type: Application
    Filed: November 15, 2005
    Publication date: May 17, 2007
    Inventor: Jheroen Dorenbosch
  • Publication number: 20070070946
    Abstract: A mobile station (303) provides seamless mobility across multicast domains for communicating with a multicast group (109) in a telecommunication system (300) that includes a home domain (102) and a visited domain (302). The mobile station (303) includes a local source address (324) and a home address (322). The mobile station (303) also includes a domain detector (305) for detecting a current domain of the mobile station (303), a comparator (307) for comparing the current domain of the mobile station with a previous domain of the mobile station (303) to generate a comparison result; and a multicast mode switch (326) coupled to the comparator (307) for switching between the local source address (324) and the home address (322) to select a source address for communicating with the multicast group (109) as a function of the comparison result.
    Type: Application
    Filed: September 26, 2005
    Publication date: March 29, 2007
    Inventors: Jheroen Dorenbosch, Cynthia Jung
  • Publication number: 20060083193
    Abstract: A communication unit (CU) (109, 111) network controller (113) and corresponding methods (603-609) are described that facilitate selectively routing calls. The CU includes a transceiver (403) suitable to support an air interface with a local area network (LAN) (101) and with a wide area network (WAN) (105) and a controller (405) that is coupled to and controlling the transceiver. These are each and collectively configured to determine when a bearer leg within the WLAN will not support a call attempt over the bearer leg and responsive to so determining, initiate the call over another bearer leg, e.g. within the LAN or the WAN. The determining includes, for example, receiving a message (703, 707, 713) that indicates or implies that the call can not be supported.
    Type: Application
    Filed: October 18, 2004
    Publication date: April 20, 2006
    Inventors: James Womack, Jheroen Dorenbosch, Niranjan Segal
  • Publication number: 20060072532
    Abstract: A system and method in a radio access network (RAN) (100) consisting of wireless access points (APs) and (RR4, RR5, RR6, and RR7) mobile stations (MSs) (102) that proactively sets up a multicast distribution tree (101). An indication is detected at a destination AP (RR6). The indication is that an MS (102) operating at an initial AP (RR5) is a member of a multicast group. The indication is via a device operating in the RAN (100). Responsive to detecting the indicating, a multicast distribution tree (101) is established for the multicast group that includes the destination AP (RR6).
    Type: Application
    Filed: September 30, 2004
    Publication date: April 6, 2006
    Inventors: Jheroen Dorenbosch, Andrew Morrison, Cynthia Jung
  • Publication number: 20060007930
    Abstract: A method for determining multicast versus unicast of packet data is a wireless communication system establishes (102) a target member set which represents the wireless terminals (10-14) served by an access point (30-32) which wireless terminals a members of a multicast group. The access point receives (104) the packet data. The access point next determines (106) a destination subset of the target member set of wireless terminals. The destination subset is those wireless terminals which are to receive the packet data.
    Type: Application
    Filed: July 9, 2004
    Publication date: January 12, 2006
    Inventor: Jheroen Dorenbosch
  • Publication number: 20050281208
    Abstract: A method (800, 900) and apparatus (1001) for controlling a session between communication units (141-146) sharing a group Internet Protocol (IP) multicast address. The method includes determining communication units from which a response to a session initiation protocol (SIP) control message is not required and preparing the control message which is sent to the communication units using the group address with information used to control from which of the of communication units the response is required. The SIP control message is sent to a second communication unit using a unicast address indicating that the response is required.
    Type: Application
    Filed: June 17, 2004
    Publication date: December 22, 2005
    Inventors: Jheroen Dorenbosch, Niranjan Segal
  • Publication number: 20050282575
    Abstract: A wireless communication unit (CU) (FIG. 4), corresponding network controller (FIG. 5), and methods (FIG. 8, etc) operate to route calls and facilitate a call handover from one wireless network to another. The CU comprises a transceiver 403 suitable to support an air interface with a first and second wireless communication network 304, 305; a memory 415 operable to store information 431 suitable for identifying an enterprise controller; and a controller 405 configured to facilitate setting up a call. The controller thereafter if the call needs to be handed over from one to another of the first and second communication network, uses the information to facilitate identification of a unique one of a plurality of enterprise controllers for effecting a hand over of the call.
    Type: Application
    Filed: June 18, 2004
    Publication date: December 22, 2005
    Inventor: Jheroen Dorenbosch
  • Publication number: 20050276237
    Abstract: An access point (102) conveys (202) to communication units (104) of a plurality of multicast groups, a first indication that the access point supports a method for sending a multicast message. The access point receives (204) a multicast message directed to a receiving one of the plurality of multicast groups, and determines (206) that the communication units belonging to the receiving one of the plurality of multicast groups also support the method. The access point signals (208) a second indication to selectively awaken the communication units belonging to the receiving one of the plurality of multicast groups, and transmits (210) the multicast message to the receiving one of the plurality of multicast groups in a manner that allows (212) at least one communication unit not belonging to the receiving one of the plurality of multicast groups to remain asleep during the transmitting.
    Type: Application
    Filed: June 15, 2004
    Publication date: December 15, 2005
    Inventors: Niranjan Segal, Jheroen Dorenbosch, James Womack, Peter Drozt
  • Publication number: 20050239498
    Abstract: Fast call set-up for a call to a multi-mode communication unit (102) is facilitated by a method and apparatus for registering and re-registering priorities with a SIP registrar (111). A list of contacts with first priorities associated with a mode of operation in a first enterprise network (106) is established and used. A switch to second priorities is made when a probability of a switch from the first mode of operation to a second mode of operation in a second cellular network (108) satisfies a threshold. The list of contacts includes a contact having an expiration time for the first mode of operation. A quality factor is determined and the list of contacts is re-registered and the expiration time changed if the quality factor does not satisfy a threshold.
    Type: Application
    Filed: April 26, 2004
    Publication date: October 27, 2005
    Inventors: Jheroen Dorenbosch, Jack Gipson, Ajaykumar Idnani
  • Publication number: 20050226230
    Abstract: A method of independently managing membership for a group and mobility for members of that group in a communications system includes setting up a group name and a membership for that group including a plurality of names, each of the names indicative of a user within that group; and establishing, separately from the membership, contact information associated with each name. With this method, initiating a session with members of a group includes contacting a first registrar with a request for a session, that registrar including the names indicative of the members of the group and a further registrar associated with each of the names; forwarding the request for a session to the further register that includes contact or end point info for the member; and then forwarding the request to the contact associated with the member.
    Type: Application
    Filed: June 7, 2005
    Publication date: October 13, 2005
    Inventor: Jheroen Dorenbosch
  • Publication number: 20050143088
    Abstract: A wireless communication unit (200) and corresponding method (500) selectively routes calls originated in one wireless communication network (105) through another wireless communication network (104, 108, 110). The communication unit comprises a transceiver (203) suitable to support an air interface with a first wireless communication network and with a second wireless communication network; a user interface (211) operable to initiate a call to a number of a target unit; and a controller (209), coupled to the transceiver and the user interface, and operable, responsive to the call initiation and when the wireless communication unit is operating in the second wireless communication network, to selectively hairpin the call through the first communication network.
    Type: Application
    Filed: December 30, 2003
    Publication date: June 30, 2005
    Inventors: Alex Hirsbrunner, Jheroen Dorenbosch, Niranjan Segal
  • Publication number: 20050119005
    Abstract: A wireless communication unit (101, 200), network switch (112, 300) and corresponding methods facilitate retrieval, routing, and management of on-hold calls (FIG. 5) within a first communication network (103) when the unit is operating in a second communication network (105) that is loosely coupled to the first. The communication unit comprises a transceiver (203) configured to support an air interface with the first and the second communication network; and a controller (209) arranged to cooperatively operate with the transceiver to retrieve an on-hold call from the first network via a call leg established to handout on-hold calls to and while the unit is operating in the second network. A user interface (211) facilitates management, connecting, disconnecting, etc., of the on-hold calls by the communication unit.
    Type: Application
    Filed: December 2, 2003
    Publication date: June 2, 2005
    Inventors: Niranjan Segal, Jheroen Dorenbosch, Anatoly Belkin
  • Publication number: 20050114513
    Abstract: A system and method for facilitating communications in a network includes receiving a message from a mobile unit having a contact address. A proxy establishes a contact alias associated with the mobile unit and the contact address. The proxy intercepts and identifies at least one signaling message that includes the contact alias. The proxy compresses the at least one signaling message that includes the contact alias. The compressed at least one signaling message is routed to the mobile unit with the contact address.
    Type: Application
    Filed: November 20, 2003
    Publication date: May 26, 2005
    Inventors: Jheroen Dorenbosch, James Womack