Patents by Inventor Hong Hu

Hong Hu 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: 20100067385
    Abstract: A method of encapsulating data packets for use in a distributed computer network is disclosed. The method includes providing a data packet for transmission over the distributed computer network, the data packet selected from one of a customer data packet and an OAM data packet; and encapsulating the data packet with a medium access control outer packet. The disclosed data packet handling method includes receiving a data packet from a customer facing data port, the customer facing data port within a network node of a computer network; performing medium access control (MAC) learning for the received packet; determining whether the data port is a MAC-in-MAC port; performing a packet mapping to a destination address based on a service provider destination address; and encapsulating the received data packet with a header associated with the service provider.
    Type: Application
    Filed: November 24, 2009
    Publication date: March 18, 2010
    Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Kuo-Hui Liu, Cheng-Hong Hu, Chin Yuan, Chou Lan Pok
  • Publication number: 20100061237
    Abstract: A computer-readable storage medium (102) is provided for managing end-to-end QoS (Quality of Service) policies in a communication network (100). The storage medium includes computer instructions for establishing (302) a plurality of QoS domains (108) between a plurality of packet switching technologies (102, 106. 110) operating with disparate QoS policies, each QoS domain having an ingress and egress boundary, remapping (303) a QoS policy of each packet exchanged between the ingress boundaries of the plurality of QoS domains, and restoring (309) the QoS policy of each packet exchanged between the egress boundaries of the plurality of QoS domains.
    Type: Application
    Filed: November 18, 2009
    Publication date: March 11, 2010
    Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventor: CHENG-HONG HU
  • Publication number: 20100025673
    Abstract: The present invention relates to a light emitting diode (100, 109), comprising at least one p-doped structure, a plurality of n-doped zinc-oxide (ZnO) nanowires (104) arranged on the at least one p-doped structure, thereby forming a plurality of p-n junctions (107a, 107b), an insulating structure (105) arranged among the plurality of ZnO-nanowires (104), to electrically separate the plurality of p-n junctions (107a, 107b), and a transparent conductive layer (106), arranged on the at least one insulating structure (105) and in electrical contact with the plurality of ZnO-nanowires (104), to enable application of a voltage over the plurality of p-n junctions (107a, 107b), thereby enabling emission of light. An advantage with the above light emitting diode (100, 109) is its improved broadband spectral distribution. Furthermore, as ZnO-nanowires (104) are used, it is possible to achieve a high brightness.
    Type: Application
    Filed: November 23, 2006
    Publication date: February 4, 2010
    Inventors: Qiu-Hong Hu, Magnus Willander, Victor Kouzmine
  • Publication number: 20100002576
    Abstract: A system that incorporates teachings of the present disclosure may include, for example, a PE-ASBR (Provider Edge-Autonomous System Boundary Routers) having a controller to receive new routing information without an attribute of origin, insert a site of origin of the PE-ASBR into the new routing information if the PE-ASBR is dual-homed to another MPLS-VPN cluster, and broadcast to other network elements the new routing information with the site of origin of the PE-ASBR. Additional embodiments are disclosed.
    Type: Application
    Filed: September 14, 2009
    Publication date: January 7, 2010
    Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventor: CHENG-HONG HU
  • Patent number: 7643424
    Abstract: A method of encapsulating data packets for use in a distributed computer network is disclosed. The method includes providing a data packet for transmission over the distributed computer network, the data packet selected from one of a customer data packet and an OAM data packet; and encapsulating the data packet with a medium access control outer packet. The disclosed data packet handling method includes receiving a data packet from a customer facing data port, the customer facing data port within a network node of a computer network; performing medium access control (MAC) learning for the received packet; determining whether the data port is a MAC-in-MAC port; performing a packet mapping to a destination address based on a service provider destination address; and encapsulating the received data packet with a header associated with the service provider.
    Type: Grant
    Filed: March 22, 2003
    Date of Patent: January 5, 2010
    Assignee: AT&T Intellectual Property l, L.P.
    Inventors: Kuo-Hui Liu, Cheng-Hong Hu, Chin Yuan, Chou Lan Pok
  • Patent number: 7623457
    Abstract: A computer-readable storage medium (102) is provided for managing end-to-end QoS (Quality of Service) policies in a communication network (100). The storage medium includes computer instructions for establishing (302) a plurality of QoS domains (108) between a plurality of packet switching technologies (102, 106. 110) operating with disparate QoS policies, each QoS domain having an ingress and egress boundary, remapping (303) a QoS policy of each packet exchanged between the ingress boundaries of the plurality of QoS domains, and restoring (309) the QoS policy of each packet exchanged between the egress boundaries of the plurality of QoS domains.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: November 24, 2009
    Assignee: AT&T Intellectual Property I, L.P.
    Inventor: Cheng-Hong Hu
  • Patent number: 7609628
    Abstract: A system and method are disclosed for fault-tolerance in an inter-carrier network interface. A system that incorporates teachings of the present disclosure may include, for example, a PE-ASBR (Provider Edge-Autonomous System Boundary Router) (108, 138) having a communications interface (202) for internetworking with another MPLS-VPN (Multi-protocol Label Switching-Virtual Private Network) cluster (102, 132), and a controller (204). The controller can be programmed to exchange (302) routing information with a PE-ASBR within its own MPLS-VPN cluster and with a corresponding PE-ASBR of another MPLS-VPN cluster, and accept (334) a reroute of packet traffic away from a PE-ASBR of its MPLS-VPN cluster experiencing a fault.
    Type: Grant
    Filed: September 7, 2005
    Date of Patent: October 27, 2009
    Assignee: AT&T Intellectual Property I, L.P.
    Inventor: Cheng-Hong Hu
  • Patent number: 7570648
    Abstract: The present disclosure is generally directed to systems and methods associated with data communications. In a particular embodiment, a method for use of multi-protocol labels switching (MPLS) encapsulation with control word communicated over a distributed computer network is disclosed. The method includes providing MPLS virtual circuit label with the control word associated with a data packet selected from one of a customer data packet and an OAM data packet, and communicating the MPLS packet with control word and the data packet over the distributed computer network. In another embodiment, a method of handling a data packet within a computer network is disclosed. The data packet is either an unknown unicast, multicast, or broadcast packet. The method includes encapsulating the packet into a multi-packet label switching label and a control word, the control word having a source site identity and a multi-cast identity; and distributing the packet to a plurality of sites within the computer network.
    Type: Grant
    Filed: February 3, 2003
    Date of Patent: August 4, 2009
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Cheng-Hong Hu, Chin Yuan, Kuo-Hui Liu
  • Publication number: 20090178088
    Abstract: A method of delivering video content includes receiving a request for a video stream at a network device of a video distribution network. The request is received via a network link associated with a link aggregation group. The method includes determining a current real-time traffic load at each of a plurality of physical interfaces associated with the link aggregation group at the network device. Further, the method includes identifying an interface having a lowest traffic load of the plurality of physical interfaces. The lowest traffic load is lower than a pre-defined threshold. The method includes determining a total traffic load for the identified interface. The total traffic load includes an estimated traffic load corresponding to the requested video stream and including the lowest traffic load. The method also includes sending the requested video stream via the identified interface when the total traffic load is lower than the pre-defined threshold.
    Type: Application
    Filed: January 3, 2008
    Publication date: July 9, 2009
    Applicant: AT&T Knowledge Ventures, LP
    Inventors: Kuo-Hui Liu, Cheng-Hong Hu
  • Publication number: 20090167140
    Abstract: A method for manufacturing a field emission cathode comprising the steps of providing a liquid compound comprising a liquid phenolic resin and at least one of a metal salt and a metal oxide, arranging a conductive cathode support (2) such that said conductive cathode support comes in a vicinity of said liquid compound (2) and heating said liquid compound (2). By performing the above mentioned steps, a solid compound foam is formed which is transformed from said liquid compound, said solid compound foam at least partly covering said conductive cathode support. Advantage with the novel compound comprises its improved work function and the minimal or non-existing training period. Hence, this novel method will provide the possibility to manufacture a field emission cathode at a fraction of the cost associated with the in prior art used methods and materials.
    Type: Application
    Filed: July 6, 2006
    Publication date: July 2, 2009
    Inventor: Qiu-Hong Hu
  • Publication number: 20090128002
    Abstract: In one embodiment of the present invention, an electron/photon source is disclosed based on field emission, cathodoluminescent and photo-enhanced field emission, including an evacuated chamber inside a housing, further including an anode and a cathode arranged inside the evacuated chamber. Furthermore, the cathode is arranged to emit electrons when a voltage is applied between the anode and cathode, the anode being arranged to emit light at a first wavelength range when receiving electrons emitted from the cathode, and a wavelength range converting material arranged to receive the emitted light of the first wavelength range and emit light at a second wavelength range. In a novel way, an embodiment of the present invention makes it possible to, in two steps, convert the electrons emitted from the cathode to visible light.
    Type: Application
    Filed: June 28, 2006
    Publication date: May 21, 2009
    Inventor: Qiu-Hong Hu
  • Publication number: 20090080328
    Abstract: In an embodiment, a method of allocating media streams includes measuring real-time port usage data related to each of a plurality of physical ports associated with a link aggregation group. The method further includes selecting at least one, but not all, of the plurality of physical ports based on the real-time port usage data and sending a media stream to a network via the physical port.
    Type: Application
    Filed: September 20, 2007
    Publication date: March 26, 2009
    Applicant: AT&T KNOWLEDGE VENTURES, LP
    Inventors: CHENG-HONG HU, DONALD SMITH, KUO-HUI LIU
  • Publication number: 20090041026
    Abstract: A system that incorporates teachings of the present disclosure may include, for example, a network policy manager having a controller element to provision one or more network elements in a communication system with at least one base policy template and at least one atomic policy template retrieved from one or more base policy templates and a plurality of atomic policy templates according to a service order of a subscriber. At least one base policy template can correspond to an operating baseline of the one or more network elements, while at least one atomic policy template can correspond to one among a plurality of service configurations of the one or more network elements. Additional embodiments are disclosed.
    Type: Application
    Filed: August 6, 2007
    Publication date: February 12, 2009
    Applicant: AT&T KNOWLEDGE VENTURES, L.P.
    Inventors: CHENG-HONG HU, CHOU LAN POK, MICHAEL RAFTELIS
  • Publication number: 20090028162
    Abstract: Methods for automating membership discovery in a distributed computer network are presented. A particular method includes establishing a Multi-Protocol Label Switching (MPLS) tunnel and Targeted Label Distribution Protocol (LDP) signaling channel between a first Provider Edge (PE) device and a plurality of PE devices. A first Virtual Private LAN Service (VPLS) site is added to a Multi-Tenant Unit (MTU) device associated with the first PE device. A first LDP Label Mapping Message is sent to the first PE device from the MTU device. The first LDP Label Mapping Message is broadcast to the plurality of PE devices from the first PE device. A second LDP Label Mapping Message is sent to the MTU device from the first PE device to establish a virtual circuit label switch path between the MTU device and the first PE device. A second VPLS site is added to the MTU device without sending an associated LDP Label Mapping Message to the first PE device.
    Type: Application
    Filed: September 30, 2008
    Publication date: January 29, 2009
    Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventor: CHENG-HONG HU
  • Publication number: 20080279100
    Abstract: Systems and methods of controlling communication of data are provided. A method of controlling communication of data may include receiving, at a network component, a request for data associated with a data source. The network component may have a limited capacity to distribute data. The method also includes determining whether the network component is exceeding a first capacity threshold. When the network component is exceeding the first capacity threshold, the method includes determining whether the data source meets a popularity criterion. When the data source meets the popularity criterion, the method includes sending the data associated with the data source.
    Type: Application
    Filed: May 10, 2007
    Publication date: November 13, 2008
    Applicant: AT&T Knowledge Ventures, LP
    Inventors: Chin Yuan, Cheng-Hong Hu
  • Patent number: 7447212
    Abstract: A system and methods for automating membership discovery in a distributed computer network is presented. A first virtual circuit label switch path (LSP) associated with a first VPLS is established between a first multi tenant unit (MTU) and an attached provider edge (PE) device. A first label mapping message (LMM) is communicated over the first virtual circuit LSP and received at the PE device. The PE device broadcasts the LMM to a plurality of additional PE devices. In addition, methods for automating membership discovery for adding and deleting virtual private LAN service (VPLS) sites are presented. A virtual circuit forwarding equivalence class (VC-FEC) type packet utilized in the various methods and system is also disclosed.
    Type: Grant
    Filed: September 3, 2003
    Date of Patent: November 4, 2008
    Assignee: AT&T Intellectual Property I, L.P.
    Inventor: Cheng-Hong Hu
  • Publication number: 20080080391
    Abstract: A method and apparatus for supporting an asymmetric transport network is disclosed. An apparatus that incorporates teachings of the present disclosure may include, for example, a network element having a number of bidirectional switching cards each logically reconfigured as at least one among ingress and egress switching elements for transporting asymmetric unidirectional packet traffic. Additional embodiments are disclosed.
    Type: Application
    Filed: September 29, 2006
    Publication date: April 3, 2008
    Applicant: SBC KNOWLEDGE VENTURES, L.P.
    Inventors: CHENG-HONG HU, KUO-HUI LIU
  • Publication number: 20070273601
    Abstract: A signal transmission line for a high resolution multi-media interface, comprises a plurality of transmission lines; each of the transmission lines having three conductive wires; two conductive wires being twisted and the other conductive wire being an independent wire; wherein each conductive wire has a plurality of twisting points, the twisted points of two adjacent transmission lines are alternatively arranged. The signal transmission line further comprises an isolating sheet alternatively passing through the gaps between two adjacent transmission lines. Furthermore a connector with the signal transmission line has an upper cover, a lower cover, a joint and a bridge device; wherein the upper cover and lower cover encloses the joint, bridge device and the signal transmission line; one end of the signal transmission line has bared wires; the bridge device has a first connecting surface and a second connecting surface.
    Type: Application
    Filed: May 11, 2007
    Publication date: November 29, 2007
    Inventor: Yu-Hong Hu
  • Patent number: D604334
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: November 17, 2009
    Assignee: Masalta Engineering Co., Ltd.
    Inventor: Hong Hu
  • Patent number: D604335
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: November 17, 2009
    Assignee: Masalta Engineering Co., Ltd
    Inventor: Hong Hu