Patents by Inventor Hsin-Yuo Liu

Hsin-Yuo Liu 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: 7720440
    Abstract: Embodiments of distributed coordination of a clear channel assessment threshold are presented herein.
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: May 18, 2010
    Assignee: Intel Corporation
    Inventors: Jing Zhu, Hsin-Yuo Liu
  • Patent number: 7646759
    Abstract: A method and apparatus for configuring data plane behavior on network forwarding elements are described. In one embodiment, the method includes receiving, within a network element control plane, protocol configuration information extracted from a protocol application utilizing a network protocol application programming interface (API). Once the protocol configuration information is received, the protocol configuration information is processed using a control interface corresponding to the network protocol implemented by the protocol application. Once the protocol configuration information is processed, the control interface programs one or more data plane forwarding elements of the network element according to protocol configuration information. Accordingly, by providing similar control interfaces for multiple, network protocols, inter-operability between components from multiple vendors is enabled.
    Type: Grant
    Filed: January 7, 2003
    Date of Patent: January 12, 2010
    Assignee: Intel Corporation
    Inventors: Shriharsha S. Hegde, Russell J. Fenger, Amol Kulkarni, Hsin-Yuo Liu, Hormuzd M. Khosravi, Manasi Deval
  • Publication number: 20090088177
    Abstract: A collocated radio coexistence method is disclosed. The method operates in the frequency domain to protect WiMAX downlink traffic from narrow band interference (e.g. harmonics) caused by other collocated radios, such as GSM 800 MHz, operating simultaneously with an 802.16-capable (WiMAX) radio in a multiple radio coexistence platform (MRP).
    Type: Application
    Filed: September 28, 2007
    Publication date: April 2, 2009
    Inventors: XUE YANG, XIANGYING YANG, JING ZHU, HSIN-YUO LIU
  • Publication number: 20090054009
    Abstract: Embodiments of a multi-radio wireless communication device having a Worldwide Interoperability for Microwave Access (WiMax) radio module and a Bluetooth (BT) radio module and methods for communicating are generally described herein. Other embodiments may be described and claimed. In some embodiments, a WiMax active signal is asserted by a coexist controller of the WiMax radio module during receipt of a downlink subframe, and the BT radio module aligns a BT slot boundary of either master-to-slave or slave-to-master slot based on timing information conveyed by the WiMax active signal. The WiMax active signal may be de-asserted by the coexist controller during transmission of an uplink subframe by the WiMax radio module.
    Type: Application
    Filed: August 22, 2007
    Publication date: February 26, 2009
    Inventors: Xue Yang, Eran Sudak, Xingang Guo, Hsin-Yuo Liu
  • Publication number: 20090003294
    Abstract: In general, in one aspect, the disclosure describes an apparatus that includes a first radio to communicate with a first wireless network and a second radio to communicate with a second wireless network. A controller is used to estimate signal to noise and interference ratio (SINR) for signal being received by the first radio when the second radio is transmitting. The controller is also to determine if the estimate meets a threshold. Transmissions are permitted from the second radio while the first radio is receiving if the threshold is met.
    Type: Application
    Filed: June 29, 2007
    Publication date: January 1, 2009
    Inventors: Jing Zhu, Hsin-Yuo Liu, Leora Roth
  • Publication number: 20080247445
    Abstract: Embodiments of systems and methods for the coexistence of wireless radios having differing protocols are generally described herein. Other embodiments may be described and claimed. In some embodiments systems and methods for synchronizing clocks between two radios, and using a signal to notify one of the radios to refrain from transmitting for a timeperiod are described.
    Type: Application
    Filed: April 6, 2007
    Publication date: October 9, 2008
    Inventors: Xingang Guo, Xue Yang, Hsin-Yuo Liu, Eran Sudak
  • Publication number: 20080240021
    Abstract: A wireless device with a multi-radio platform includes a scheduling coordinator connected by a control bus to enable the radios to share frequency spectrum by operating during time slots requested by the radios, avoid collisions, mitigate interference and control shared hardware components.
    Type: Application
    Filed: March 29, 2007
    Publication date: October 2, 2008
    Inventors: Xingang Guo, Changwen Liu, Srikant Kuppa, Hsin-Yuo Liu, Niklas Linkewitsch, Reed D. Vilhauer
  • Publication number: 20080242329
    Abstract: Methods and arrangements for link rate adaptation in multi-radio co-existence platforms (MRPs) are contemplated. Embodiments include transformations, code, state machines or other logic to determine an overlap between receiving by a wireless device of the MRP and transmitting by other of the wireless devices of the MRP and to select a link rate of the wireless device of the MRP based upon the determining an overlap. The embodiments may also include communicating the determined link rate to a wireless device transmitting to the wireless device of the MRP. Embodiments may also include selecting a previously used link rate if the receiving overlaps the transmitting. Embodiments may also include basing the link rate upon an overlapping or non-overlapping Signal-to-Interference-Plus-Noise-Ratio depending on the relative amounts of overlapping and non-overlapping.
    Type: Application
    Filed: March 30, 2007
    Publication date: October 2, 2008
    Inventors: Xue Yang, Allen C. Kim, Hsin-Yuo Liu, Xingang Guo
  • Patent number: 7388840
    Abstract: An open networking routing system includes at least one forwarding element, and a control element communicatively coupled to the forwarding element(s). In one embodiment, the control element is equipped with a route cache manager to receive notification of a routing table update in the control element, and facilitate notification of the routing table update to at least one functional component within the control element and forwarding element(s) in a coordinated manner to maintain routing coherency between the control element and forwarding element(s).
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: June 17, 2008
    Assignee: Intel Corporation
    Inventors: Manasi Deval, Hsin-Yuo Liu, Pugi Tang, Rajeev Muralidhar
  • Publication number: 20080139200
    Abstract: In a wireless device that includes two different radio transceivers that communicate in two different wireless networks, wireless transmissions from one radio in the first network may be timed so that they do not coincide with wireless receptions by the other radio in the second network. A non-wireless interface between the two radios may be used to convey information about the scheduled reception times so that the transmission will not be scheduled during those reception times. This may be particularly useful when the receiving radio is operating in a centralized and highly scheduled network, while the transmitting radio is operating in a more decentralized network.
    Type: Application
    Filed: December 12, 2006
    Publication date: June 12, 2008
    Inventors: Jing Z. Zhu, Hsin-Yuo Liu, Xue Yang, Xingang Guo
  • Publication number: 20070270102
    Abstract: Embodiments of distributed coordination of a clear channel assessment threshold are presented herein.
    Type: Application
    Filed: May 18, 2006
    Publication date: November 22, 2007
    Inventors: Jing Zhu, Hsin-Yuo Liu
  • Patent number: 7209449
    Abstract: A forwarding system including a plurality of forwarding elements to receive and transmit data and a control element to receive and process route updates, the control element being connected to the forwarding elements and including at least one route management component to transmit one or more route updates to the forwarding elements and synchronize the commitment of the route updates by the forwarding elements.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: April 24, 2007
    Assignee: Intel Corporation
    Inventors: Puqi Tang, Hsin-Yuo Liu
  • Patent number: 7185365
    Abstract: An access control system including a network device having a plurality of network interfaces for receiving and transmitting packets of data, the network device including a forwarding element to apply filter rules to the packets, and a filter rule constructor engine associated with said forwarding element to receive access control rules and decryption information for a security protocol, derive from the access control rules and security information a set of filter rules to be applied to packet headers encrypted with the security protocol, and transmit the set of filter rules to the at least one forwarding element.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: February 27, 2007
    Assignee: Intel Corporation
    Inventors: Puqi Tang, Hsin-Yuo Liu
  • Publication number: 20060234719
    Abstract: Embodiments of methods and apparatus for selecting communication channels based on channel load information are generally described herein. Other embodiments may be described and claimed.
    Type: Application
    Filed: April 13, 2005
    Publication date: October 19, 2006
    Inventors: Mustafa Demirhan, Mousumi Hazra, Hsin-Yuo Liu, Nandakishore Kushalnagar
  • Publication number: 20060215596
    Abstract: Methods and apparatus provide transfer rate adjustments for a device, which in an embodiment comprises a multimedia server. These rate adjustments are based upon determining by the multimedia server various quality of service parameters from a wireless link between two other network nodes, which may comprise an access point and a video player, respectively.
    Type: Application
    Filed: March 23, 2005
    Publication date: September 28, 2006
    Inventors: Dilip Krishnaswamy, Mousumi Hazra, Hsin-Yuo Liu
  • Publication number: 20040264384
    Abstract: An open networking routing system includes at least one forwarding element, and a control element communicatively coupled to the forwarding element(s). In one embodiment, the control element is equipped with a route cache manager to receive notification of a routing table update in the control element, and facilitate notification of the routing table update to at least one functional component within the control element and forwarding element(s) in a coordinated manner to maintain routing coherency between the control element and forwarding element(s).
    Type: Application
    Filed: June 30, 2003
    Publication date: December 30, 2004
    Inventors: Manasi Deval, Hsin-Yuo Liu, Pugi Tang, Rajeev Muralidhar
  • Publication number: 20040165601
    Abstract: A method and system for label-based packet forwarding among multiple forwarding elements is described. The system includes a plurality of forwarding elements to forward a data packet from an ingress port at which the data packet is received from a network to an egress port from which the data packet will be transmitted to a next hop in the network and a control element coupled to the plurality of forwarding elements to control the forwarding elements. Each forwarding element has one or more label switch tables with one or entries to label data packets for forwarding along a path from the ingress port of one of the plurality of forwarding elements to the egress port of another of the plurality of forwarding elements.
    Type: Application
    Filed: February 24, 2003
    Publication date: August 26, 2004
    Inventors: Hsin-Yuo Liu, Puqi Tang, Manav Mishra, Sanjay Bakshi
  • Publication number: 20040131079
    Abstract: A method and apparatus for configuring data plane behavior on network forwarding elements are described. In one embodiment, the method includes receiving, within a network element control plane, protocol configuration information extracted from a protocol application utilizing a network protocol application programming interface (API). Once the protocol configuration information is received, the protocol configuration information is processed using a control interface corresponding to the network protocol implemented by the protocol application. Once the protocol configuration information is processed, the control interface programs one or more data plane forwarding elements of the network element according to protocol configuration information. Accordingly, by providing similar control interfaces for multiple, network protocols, inter-operability between components from multiple vendors is enabled.
    Type: Application
    Filed: January 7, 2003
    Publication date: July 8, 2004
    Inventors: Shriharsha S. Hegde, Russell J. Fenger, Amol Kulkarni, Hsin-Yuo Liu, Hormuzd M. Khosravi, Manasi Deval
  • Publication number: 20040111517
    Abstract: A method and apparatus to provide service to an active network node may be described.
    Type: Application
    Filed: December 9, 2002
    Publication date: June 10, 2004
    Inventors: Mitu Aggarwal, Hsin-Yuo Liu, Rajeev D. Muralidhar, Puqi Tang
  • Publication number: 20030212900
    Abstract: A system for updating classification chains, including but not limited to firewall ACLS, can include a network device having a plurality of interfaces to receive and transmit packets of data, a forwarding element to apply classification rules to the packets, and a packet classification chain that resides at least temporarily on the network device, wherein the chain includes classification rules, an associated action, and an update field to trigger insertion or deletion of the rule.
    Type: Application
    Filed: May 13, 2002
    Publication date: November 13, 2003
    Inventors: Hsin-Yuo Liu, Puqi Tang