Patents Examined by Kerri M. Rose
  • Patent number: 7907515
    Abstract: An apparatus capable of performing, without the apparatus being isolated from a network, automatic switching to a previous network interface if there is an error in setting set values for a different network interface to which the previous network interface has been switched. When set values for a first network interface, which can be used in the apparatus, have been changed and then processing to establish connection to a network using the first network interface as active network interface in the apparatus has failed, the active network interface is switched to a second network interface which can be used in the apparatus.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: March 15, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Nobuaki Fukasawa
  • Patent number: 7903640
    Abstract: A system and method is provided for routing telephone calls on a standard telephone network to one of a PSTN network and a VoIP network. The system comprises at least one telephone capable of making local and long distance calls on the network. A Central Office is coupled to the telephone and comprises a trigger for identifying calls to be routed to either a VoIP platform or the PSTN network. Calls to be converted to IP protocol are routed to a VoIP platform. An IP network is coupled to the VoIP platform and routes VoIP calls to one or more devices in communication with the telecommunications system.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: March 8, 2011
    Assignee: AT&T Intellectual Property I, LP
    Inventors: John P. Ruckart, Rimas J. Rauba
  • Patent number: 7898990
    Abstract: A method, system and gateway device enables interworking between an IP-based network and a circuit-switched network. A first address information of a first connection end located in the circuit-switched network is routed in a trigger message from the IP-based network to a gateway control function. The first and second call legs are established in parallel towards the first connection end based on the first address information, and towards a second connection end located in the IP-based network based on a second address information obtained from the trigger message. A single connection between the two connection ends is then established by connecting the first and second call legs. Thereby, IP-based signaling functionality can be used to add capability for subscribers located in the CS domain to be invited into conferences or calls with subscribers located in an IP-based domain, e.g. the IMS domain.
    Type: Grant
    Filed: May 21, 2003
    Date of Patent: March 1, 2011
    Assignee: Spyder Navigations L.L.C.
    Inventors: Juha Kallio, Markku Jylhä-Ollila, Jari Mutikainen
  • Patent number: 7894330
    Abstract: A method for mapping a physical hybrid automatic repeat request indicator channel (PHICH) is described. The method for mapping a PHICH includes determining an index of a resource element group transmitting a repetitive pattern of the PHICH, according to a ratio of the number of available resource element groups in a symbol in which the PHICH is transmitted and the number of available resource element groups in a first or second OFDM symbol, and mapping the PHICH to the symbol according to the determined index. In transmitting the PHICH, since efficient mapping is performed considering available resource elements varying with OFDM symbols, repetition of the PHICH does not generate interference between neighbor cell IDs and performance is improved.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: February 22, 2011
    Assignee: LG Electronics Inc.
    Inventors: Jung Hoon Lee, Joon Kui Ahn
  • Patent number: 7894477
    Abstract: Systems and methods for framing mobile communication signals for analysis are disclosed herein. In one example, a framing module of a mobile communication system comprises a channel extractor, a framing path, and a feedback path. The channel extractor enables a user to assign voice and data channels in a number of timeslots. The framing path is configured to monitor parameters of the channels and assemble pieces of channel information to create a frame. The feedback path is configured to analyze a signaling channel from the frame and to analyze one or more parameters of the signaling channel to determine a list of appropriate framing protocols. The framing path is further configured to determine whether a framing protocol for a frame is included in the framing protocol list.
    Type: Grant
    Filed: February 22, 2006
    Date of Patent: February 22, 2011
    Assignee: JDS Uniphase Corporation
    Inventors: Robert G. Ward, Roger Ruhnow
  • Patent number: 7889652
    Abstract: A system distributes extended traffic accounting information of bandwidth availability on links throughout a network. For example, routers within the network utilize an extended reservation protocol to calculate bandwidth availability information for links. In calculating the bandwidth availability information, the extended reservation protocol accounts for not only the amount of bandwidth reserved on each of links via the resource reservation protocol itself, but also for the bandwidth usage by other traffic on the links, such as Label Distribution Protocol (LDP) traffic or Internet Protocol (IP) traffic. The routers exchange bandwidth availability information using a routing protocol to gain network-wide knowledge of bandwidth availability.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: February 15, 2011
    Assignee: Juniper Networks, Inc.
    Inventors: Ina Minei, Pedro R. Marques
  • Patent number: 7885185
    Abstract: In some embodiments, a system and method for substantially real-time comparison of quality of interfaces by mobile devices over heterogeneous networks is disclosed. The method can be performed using a dynamic and rapid comparison by distributed hosts, using a minimal number of injected network packets, using minimal path quality metrics, which path quality metrics are independent of how a QoI is measured, and in a manner suitable for both wireline and wireless networks.
    Type: Grant
    Filed: August 23, 2005
    Date of Patent: February 8, 2011
    Assignees: Toshiba America Reseach, Inc., Telcordia Technologies, Inc.
    Inventors: Erick van den Berg, Sunil Madhani, Tao Zhang
  • Patent number: 7881345
    Abstract: Symbol timing synchronization in OFDM communication systems where multiple wireless terminals communicate with a single base station is described. Base station transmitter and receiver symbol timing is fixed. Each wireless terminal operates to independently adjust its transmitter timing. Transmitter timing synchronization at the wireless terminal is slaved to the terminal's receiver timing synchronization. Each wireless terminal first corrects its receiver symbol timing based on a signal received from the base station. The wireless terminal then adjusts its transmitter symbol timing as a function of its receiver symbol timing. When the receiver symbol timing is to be advanced or delayed by some amount, the transmitter symbol timing is also advanced or delayed, respectively, by the same, or substantially the same, amount. Symbol timing adjustment can be made by adding or deleting digital samples from the first or last symbol in a dwell.
    Type: Grant
    Filed: February 13, 2007
    Date of Patent: February 1, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Rajiv Laroia, Junyi Li, Vladimir Parizhsky
  • Patent number: 7881258
    Abstract: A system is disclosed having a transmitter to wirelessly transmit multi-media data. The transmitter includes a module to packetize phase units of a multimedia frame that is to be transmitted. The system also includes a receiver to receive the multimedia frame received from the transmitter. The receiver includes a post processing module to perform error concealment on the phase units.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: February 1, 2011
    Assignee: Sibeam, Inc.
    Inventors: Jeffrey M. Gilbert, Kannan Ramchandran, Guocong Song
  • Patent number: 7869449
    Abstract: A statistic reporting method includes: obtaining the current time information after an MG determines that the statistic parameter value needs to be reported if the reporting of a statistic parameter value needs to be bound to the time information, when associating the current time with the current value of the statistic parameter to be reported, and reporting such information to an MGC. In the present disclosure, the MG associates the current time information with the current value of the statistic parameter to be reported, and reports such information to the MGC, thus enabling the MGC to obtain the correct time of triggering the reporting of the statistic parameter value, reducing errors and improving the accuracy of subsequent analysis and prediction based on the reported statistic parameter value.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: January 11, 2011
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Yangbo Lin
  • Patent number: 7869459
    Abstract: A mechanism for communicating instructions and data between a processor and external devices are provided. The mechanism makes use of a channel interface as the primary mechanism for communicating between the processor and a memory flow controller. The channel interface provides channels for communicating with processor facilities, memory flow control facilities, machine state registers, and external processor interrupt facilities, for example. These channels may be designated as blocking or non-blocking. With blocking channels, when no data is available to be read from the corresponding registers, or there is no space available to write to the corresponding registers, the processor is placed in a low power “stall” state. The processor is automatically awakened, via communication across the blocking channel, when data becomes available or space is freed. Thus, the channels of the present invention permit the processor to stay in a low power state.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: January 11, 2011
    Assignee: International Business Machines Corporation
    Inventors: Michael N. Day, Charles R. Johns, John S Liberty, Todd E. Swanson, Thuong Q. Truong
  • Patent number: 7864699
    Abstract: A method for information transfer includes: determining, by a source Mobility Management Network Element (MMNE) of a source Access Network (AN), version number of GPRS Tunneling Protocol (GTP) used between the source MMNE and a destination MMNE of a destination AN; and transmitting, by the source MMNE, user information corresponding to the version number of the GTP used between the source MMNE and the destination MMNE to the destination MMNE. The embodiment of the invention also provides a device for information transfer. With the embodiment of present invention, corresponding user information transfer may be realized.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: January 4, 2011
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Weihua Hu, Wenfu Wu
  • Patent number: 7864784
    Abstract: A subscriber network system is provided that is capable of reducing response time and reducing device cost. In the subscriber network system, a control cell is received that includes an ID portion, a data portion, and a cyclic redundancy check (CRC) portion. The control cell is processed in cooperation with a virtual path identifier (VPI), where the processing obtains the ID portion and the CRC portion. The ID portion and the CRC portion are processed and the ID portion is compared to a first stored value and the CRC portion is compared to a second stored value to produce information. A cell is produced to include the information and the produced cell is used to facilitate a connection in a network.
    Type: Grant
    Filed: April 1, 2005
    Date of Patent: January 4, 2011
    Assignee: Juniper Networks, Inc.
    Inventor: Hiroshi Ueno
  • Patent number: 7860006
    Abstract: On-switch methods for enforcing a policy relating to one or more network switch resources, for detecting and mitigating a network anomaly, and for selectively filtering packets to an externally-accessible port, are provided. The methods may each be embodied as one or more rules held by one or more processor readable media, with one or more of the rules defining one or more conditions to be met by one or more usage-derived packet statistics, and one or more actions to be performed if the one or more conditions are met.
    Type: Grant
    Filed: April 27, 2005
    Date of Patent: December 28, 2010
    Assignee: Extreme Networks, Inc.
    Inventors: Prakash M. Kashyap, Thanh Nguyen, Boon Ling Chew
  • Patent number: 7848345
    Abstract: A communication network which can use communication bandwidth effectively. Spreading codes of a first and a second code length are assigned for every communication terminal interfaces connected to the same communication network. The spreading codes of the first code length are used for data communications. The spreading codes of the second code length are used for the control communications between the interfaces and the server. The interfaces and the server receives mixed signals of the data and the control signals. When the received signals are decoded using the spreading code of the first code length, control signal components became equal to or lower than the noise level. When the received signals are decoded using the spreading code of the second code length, data components became equal to or lower than the noise level. Therefore, the interfaces and the server can extract one of these signal components.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: December 7, 2010
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Masayuki Kashima, Kazuhiko Matsuno
  • Patent number: 7843807
    Abstract: Mesh access point fault reporting. In particular implementations, a method includes receiving a fault indication indicating one or more failures; collecting fault data related to the one or more failures or a state of the mesh access point; and passing the fault data to the RFID tag, which wirelessly transmits messages relating to the fault.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: November 30, 2010
    Assignee: Cisco Technology, Inc.
    Inventor: Allan Thomson
  • Patent number: 7843802
    Abstract: A method setting a maximum number of determinations for computing power allocation responsive to allocating power among multiple users in one subchannel of an OFDM system; beginning determination of maximum sum-throughput of users in the OFDM system with a randomly generated power profile with an iteration including: i) computing a sum-throughput using a power profile; ii) keeping a previous power profile if the sum-throughput of the current power profile sum-throughput is less than the previous power profile sum-throughput; iii) finding an index of power profile that has maximum sum-throughput; and ascertaining power profiles when the iteration is complete.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: November 30, 2010
    Assignee: NEC Laboratories America, Inc.
    Inventors: Guosen Yue, Xiaodong Wang, Mohammad Madihian
  • Patent number: 7839819
    Abstract: Aspects of a method and system for an optional closed loop mechanism with adaptive modulations for a multiple input multiple output (MIMO) WLAN system are provided. One aspect of the system may utilize properties of Eigenvalue analysis of MIMO systems to reduce the number of bits of binary information required to select a modulation type among a plurality of modulation types for each spatial stream among a plurality of spatial streams. This provides a reduction in the required number of bits when compared to other approaches and accordingly, enable greater flexibility in systems that utilize closed loop feedback mechanisms.
    Type: Grant
    Filed: April 26, 2005
    Date of Patent: November 23, 2010
    Inventor: Joonsuk Kim
  • Patent number: 7839820
    Abstract: A mobile station for communicating with a wireless network comprising a plurality of base stations. The mobile station comprises: 1) a first receive path capable of receiving data on a first carrier; and 2) a second receive path capable of receiving data on a second carrier, wherein the mobile station is capable of receiving a first control message from the wireless network assigning the mobile station to receive data on the first carrier and assigning the mobile station to receive data on the second carrier.
    Type: Grant
    Filed: May 19, 2005
    Date of Patent: November 23, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: John S. Csapo
  • Patent number: 7835277
    Abstract: A method and apparatus for managing a buffer of a Radio Access Station (RAS) in a communication system are provided. An available buffer space determiner sets a threshold for each service class for scheduling packet input/output of the buffer according to priority of a service class, estimates and stores, upon receipt of a packet at the buffer, an available space size of the buffer after the packet reception, compares the estimated available space size of the buffer with a first threshold corresponding to a first service class indicative of a service class of the packet, and schedules packet input/output of the buffer according to the comparison result. A processor module schedules packet input/output of the buffer according to an output of the available buffer space determiner. The present invention can improve quality of services through service differentiation based on priorities of service classes and buffer management based on characteristics of the corresponding service traffics.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: November 16, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ki-Back Kim, Eun-Chan Park, Han-Seok Kim