Patents by Inventor Haixiang He

Haixiang He 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: 9065669
    Abstract: A method and apparatus for authorizing forwarding states in a Layer 2 device of a multicast system includes a forwarding table for use in forwarding communications to group members over interfaces of the Layer 2 device. According to one aspect of the invention, associated with the forwarding state is an authorization flag. The authorization flag signals whether or not the forwarding state is an authorized forwarding state over which multicast communications may be transferred. The Layer 2 device snoops authorization communications between a host and a layer 3 device, and updates the forwarding table authorization flags in response to these communications.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: June 23, 2015
    Assignee: AVAYA INC.
    Inventor: Haixiang He
  • Publication number: 20150082165
    Abstract: A method for digitally tearing out an article from a digital magazine is disclosed. In one embodiment, the method is realized by splitting the whole digital magazine into separate articles based on the digital magazine's meta-data, providing a user interface for users to take action of tearing out an article, checking the tear-out request against the article's tear-out policy, and retrieving and adding the article to the user's collection if the request is granted.
    Type: Application
    Filed: June 1, 2014
    Publication date: March 19, 2015
    Inventor: Haixiang He
  • Patent number: 8941313
    Abstract: A light emitting unit driving circuit may include: an operating voltage supplying unit configured to supply a voltage input for the driving circuit; a driving unit coupled to the operating voltage supplying unit and configured to drive the light emitting unit to make the light emitting unit turn on or turn off; and a feedback control unit coupled between the driving unit and the light emitting unit, and configured to form a feedback loop together with the driving circuit and the light emitting unit to stabilize an operating current of the light emitting unit.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: January 27, 2015
    Assignee: OSRAM AG
    Inventors: Haixiang He, Wanchun Jiang, Martin Brueckel, Hu Wang
  • Publication number: 20140334170
    Abstract: A LED light source assembly for an automotive forward lighting apparatus may include a LED lighting unit assembly provided with a LED lighting unit, a housing, and a heat transfer body which is assembled to the housing and to which the LED lighting unit assembly is assembled, wherein a mounting protuberance is provided at an outer circumference of the housing, and wherein the mounting protuberance is used to cooperate with a corresponding mounting groove in a holding bracket of the automotive forward lighting apparatus so as to install the LED light source assembly to the holding bracket by way of quarter turn installation.
    Type: Application
    Filed: November 12, 2012
    Publication date: November 13, 2014
    Inventors: Haiqiang Zhong, Haixiang He, Xiangyu Dong, Hu Wang
  • Publication number: 20140280783
    Abstract: A method for improving downloading performance of digital magazine in OFIP (Open Format Interactive Publishing) format or Folio format based on reading intent is disclosed. In one embodiment, the method is realized by packaging the whole issue of digital magazine into per article based or per page based record based on meta-data analyzing the reading intent, e.g. which article and which page a user is currently reading, which article and which page the user intents to read next, downloading only resources related to those articles and pages, and displaying the article or the page as soon as the related resources are downloaded.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Inventor: Haixiang He
  • Publication number: 20140189780
    Abstract: A method for limiting digital content distribution inside defined real-world geographic area(s) is disclosed. In one embodiment, the method is realized by adding additional distribution policy for geographical control to digital content's metadata, requesting the receiver to acquire and provide its current location, checking receiver's current location against the geographic control distribution policy, and distributing the content if the distribution policy is satisfied.
    Type: Application
    Filed: December 29, 2012
    Publication date: July 3, 2014
    Inventor: Haixiang He
  • Publication number: 20140181967
    Abstract: A method and apparatus is disclosed which enables detection of undesired packets received at a device in a network, where the device is a member of a group of devices in the network. A registration table stores transform identifiers for each member of a group and controls the forwarding of the transform identifiers to the members of the group as members are added and deleted. A transform identifier indicates a format or transformation of a packet transmitted by an associated member. The transform identifier can therefore be used at a receiving device to distinguish between transmissions by different members of the group, thereby enabling the receiving device to extract sequence information associated with the member from the packet. The sequence information can be compared against an expected sequence number for the member to determine whether the packet is an undesirable or rogue packet.
    Type: Application
    Filed: March 3, 2014
    Publication date: June 26, 2014
    Applicant: ROCKSTAR CONSORTIUM US LP
    Inventors: Lakshminath Dondeti, Donald Fedyk, Haixiang He
  • Patent number: 8687485
    Abstract: A method and apparatus is disclosed which enables detection of undesired packets received at a device in a network, where the device is a member of a group of devices in the network. A registration table stores transform identifiers for each member of a group and controls the forwarding of the transform identifiers to the members of the group as members are added and deleted. A transform identifier indicates a format or transformation of a packet transmitted by an associated member. The transform identifier can therefore be used at a receiving device to distinguish between transmissions by different members of the group, thereby enabling the receiving device to extract sequence information associated with the member from the packet. The sequence information can be compared against an expected sequence number for the member to determine whether the packet is an undesirable or rogue packet.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: April 1, 2014
    Assignee: Rockstar Consortium USLP
    Inventors: Lakshminath Dondeti, Donald Fedyk, Haixiang He
  • Publication number: 20130169158
    Abstract: A light emitting unit driving circuit may include: an operating voltage supplying unit configured to supply a voltage input for the driving circuit; a driving unit coupled to the operating voltage supplying unit and configured to drive the light emitting unit to make the light emitting unit turn on or turn off; and a feedback control unit coupled between the driving unit and the light emitting unit, and configured to form a feedback loop together with the driving circuit and the light emitting unit to stabilize an operating current of the light emitting unit.
    Type: Application
    Filed: August 23, 2011
    Publication date: July 4, 2013
    Applicant: OSRAM AG
    Inventors: Haixiang He, Wanchun Jiang, Martin Brueckel, Hu Wang
  • Publication number: 20120195009
    Abstract: An electronic product having a double-PCB sandwich structure includes a PCB assembly, and a casing having an open side. The electronic product is configured such that a protuberance is respectively formed on the inner sides of two side walls of the casing in the longitudinal direction, the PCB assembly comprises an electronic component, a base PCB and a main PCB, the length of the base PCB and the length of the main PCB in the longitudinal direction of the casing are substantially equal to each other and slightly smaller than the length of the casing so that the PCB assembly can be installed into the casing by mating with the protuberances.
    Type: Application
    Filed: July 29, 2010
    Publication date: August 2, 2012
    Applicant: OSRAM AG
    Inventors: Martin Brueckel, Haixiang He, Wanchun Jiang
  • Publication number: 20120159568
    Abstract: A method for limiting digital content consumption inside defined real-world geographic area(s) is disclosed. In one embodiment, the method is realized by adding additional consumption policy for geographic control to digital content's metadata, requesting the digital consumption device to acquire and provide its current location, checking device's current location against the geographic control consumption policy, and displaying the content for consumption if the digital content consumption policy is satisfied.
    Type: Application
    Filed: December 15, 2011
    Publication date: June 21, 2012
    Inventor: Haixiang He
  • Patent number: 8085727
    Abstract: According to one embodiment, a method involves receiving an incoming media access control (MAC) frame that includes a header, a frame body and an error detection field. Thereafter, an information element within the frame body is analyzed to determine whether to alter a mobility tunnel between a plurality of networking devices.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: December 27, 2011
    Assignee: Avaya Inc.
    Inventors: Haixiang He, Darwin A. Engwer
  • Patent number: 8041319
    Abstract: According to one embodiment, a method involves determining whether a wireless connection between a first access point and a wireless station has failed. If so, a partial scanning process is conducted only on a subset of communication channels over which data is transmitted by access points neighboring the first access point. The subset of communication channels, inclusive of zero, is determined by analysis of a scanning history database.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: October 18, 2011
    Assignee: Avaya Inc.
    Inventors: Haixiang He, Darwin A. Engwer
  • Patent number: 7944846
    Abstract: Described is a method for statically or dynamically enabling a DVMRP router in a DVMRP domain to perform a reverse path forwarding check for an external source. A route report is generated for each known external source and injected into the DVMRP domain. Each route report includes routing information for a respective one of the known external sources. In one embodiment, the route report is generated for each network listed in a unicast routing table maintained on a DVMRP multicast border router and each route report includes unicast routing information for each of the networks and an indicator designating that the routing information is derived from unicast routing information. In another embodiment, if it is determined that routing information for an external source of multicast traffic received at a DVMRP border router is not available, the route report is generated at that time and includes a predetermined metric value.
    Type: Grant
    Filed: August 18, 2005
    Date of Patent: May 17, 2011
    Assignee: Avaya Inc.
    Inventors: Xiangrong Cai, Haixiang He
  • Patent number: 7643451
    Abstract: Fast transitions between access points (APs) in a wireless network may be accomplished when a mobile unit (MU) moves between the APs, by causing a first tunnel to be established between the APs, and causing a second tunnel to be established between the new AP and the MU. A data path having established security and quality of service parameters between the MU and the old AP may be extended through the tunnels, so that communication with the MU is not disrupted while transitioning between APs. Transition processing thus may be decoupled from movement of the MU, so that the MU may continue to receive access to data over the data path. Optionally, once the data path has been so extended, the MU and new AP may engage in authentication and other messaging to formally affect a handover of the data path to the new AP. The APs and MU may be configured to communicate according to the 802.11 protocol.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: January 5, 2010
    Assignee: Nortel Networks Limited
    Inventors: Haixiang He, Darwin Engwer
  • Patent number: 7571463
    Abstract: Method and apparatus that enable secure transmission of data in a scalable private network are described. Each station that is to be part of a private network registers with a key table. A group security association associated with the private network is forwarded to each trusted ingress and egress point that communicates with each member of the private network. When a member of the private network seeks to communicate with another member, it simply forwards the communication to the trusted ingress point. The trusted ingress point uses the security association associated with the private network to transform the communication and forwards the transformed communication through other intermediate stations in the network until it reaches a trusted egress point. The trusted egress point uses the stored security association to decode the transformed communication and forwards the communication to the appropriate destination.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: August 4, 2009
    Assignee: Nortel Networks Limited
    Inventors: Donald Fedyk, Lakshminath Dondeti, Haixiang He
  • Patent number: 7558877
    Abstract: Each member of a group registers with the Security/Routing (S/R) device 30 and receives a Group Security Association (GSA) associated with the group. The member may register as part of a group by identifying the group and the other members. Alternatively, Routing Functionality auto-discovers the other members of the group. AS members are identified, Routing functionality reflects the routes of all members in the group to all other members of the group. The forwarding of the routes to the respective group members may be secured via the GSA associated with the group. Each member can forward communication directly to the group members, securing the communication using the group SA and standard tunneling techniques (such as IPsec, GRE, MPLS, etc.). Thus the S/R provides a mechanism for private networks to be built on top of an existing network without modification of any existing network components and much more scalable in operation and configuration than individual IP sec tunnels.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: July 7, 2009
    Assignee: Nortel Networks Limited
    Inventors: Donald Fedyk, Lakshminath Dondeti, Haixiang He
  • Patent number: 7526658
    Abstract: Method and apparatus that enable secure transmission of data in a scalable private network are described. Each station that is to be part of a private network registers with a key table. A group security association associated with the private network is forwarded to each trusted ingress and egress point that communicates with each member of the private network. When a member of the private network seeks to communicate with another member, it simply forwards the communication to the trusted ingress point. The trusted ingress point uses the security association associated with the private network to transform the communication and forwards the transformed communication through other intermediate stations in the network until it reaches a trusted egress point. The trusted egress point uses the stored security association to decode the transformed communication and forwards the communication to the appropriate destination.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: April 28, 2009
    Assignee: Nortel Networks Limited
    Inventors: Haixiang He, Donald Fedyk, Lakshminath Dondeti
  • Patent number: 7519834
    Abstract: Method and apparatus that enable secure transmission of data in a scalable private network are described. Each station that is to be part of a private network registers with a key table. A group security association associated with the private network is forwarded to each trusted ingress and egress point that communicates with each member of the private network. When a member of the private network seeks to communicate with another member, it simply forwards the communication to the trusted ingress point. The trusted ingress point uses the security association associated with the private network to transform the communication and forwards the transformed communication through other intermediate stations in the network until it reaches a trusted egress point. The trusted egress point uses the stored security association to decode the transformed communication and forwards the communication to the appropriate destination.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: April 14, 2009
    Assignee: Nortel Networks Limited
    Inventors: Lakshminath Dondeti, Haixiang He, Donald Fedyk
  • Patent number: 7454484
    Abstract: A method and apparatus for producing a multicast tree in a network traces such tree based upon information retrieved from a multicast database that is protocol independent. More particularly, the network includes a plurality of network devices. A set of the plurality of network devices each includes the prior noted protocol independent multicast database. After the multicast database in each of the set of network devices is located, the multicast information in such databases is retrieved. After being retrieved, the multicast information is traced across the plurality of network devices to form the multicast tree.
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: November 18, 2008
    Assignee: Nortel Networks Limited
    Inventor: Haixiang He