Patents Examined by Seema S. Rao
  • Patent number: 8005020
    Abstract: A wireless mesh network uses communication frames that can include timeslots of different sizes depending on communication speed capabilities of the devices assigned to the timeslots. The communication frame is divided into timeslot increments of equal length. The timeslots are made up of one or more timeslot increments.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: August 23, 2011
    Assignee: Rosemount Inc.
    Inventor: Robert J. Karschnia
  • Patent number: 8005000
    Abstract: In one embodiment, one or more network devices located on a call path for packets destined to a server running applications examines payloads included in the packets to associate different ones of the packets to different ones of the applications. Information about the packets and the associations are used to determine which ones of the applications conform to their respective Service Level Agreements (SLAs).
    Type: Grant
    Filed: April 6, 2007
    Date of Patent: August 23, 2011
    Assignee: Cisco Technology, Inc.
    Inventor: Subramanian Srinivasan
  • Patent number: 8004999
    Abstract: A method of creating a graphical display illustrating throughput of data across a protocol layer. A first graphical indication is displayed which illustrates of the number of data units received, by a protocol layer, for each of a plurality of transmission intervals. A second graphical indication is displayed which illustrated the number of data units output by the protocol layer for each of a plurality of transmission intervals.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: August 23, 2011
    Assignee: JDS Uniphase Corporation
    Inventor: Juergen Voss
  • Patent number: 8000294
    Abstract: As a random access channel (RACH), two types of RACHs, a synchronous RACH and an asynchronous RACH are prepared, condition of a mobile station is classified depending on whether there is temporal synchronization in the mobile station and whether a resource is allocated, and depending on each case, any one of the synchronous RACH/the asynchronous RACH/uplink shared control channel (USCCH) is adaptively selected to carry out connection processing.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: August 16, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Katsunari Uemura, Wahoh Oh, Yasuyuki Kato, Shohei Yamada
  • Patent number: 8000339
    Abstract: A method and apparatus for transparently transforming a multicast stream is provided. The method includes transforming the multicast stream in a content engine. The multicast stream has a first bandwidth. The content engine receives a request for the multicast stream from a multicast receiver with a second bandwidth availability. Thereafter, the content engine transforms the multicast stream to a multicast stream with a third bandwidth. The third bandwidth is less than or equal to the second bandwidth. The transformed multicast stream is sent to the multicast receiver.
    Type: Grant
    Filed: September 21, 2005
    Date of Patent: August 16, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: Hariharan Ananthakrishnan, Kumar Thiagarajan, Mahesh Vittal, Srinivasan Santhanam, Suresh Pachiappan
  • Patent number: 7995600
    Abstract: A virtual receiver having multiple communication ports for connecting a link to a plurality of local security systems. The virtual receiver is programmed with a virtual receiver number and a virtual line number for each physical communication port on the receiver. The virtual receiver has a master/slave operational mode such that the data received from the plurality of local security systems by each receiver is transmitted from at least one selected slave receiver to a selected master receiver. The virtual receiver number and virtual line number is used to create a part of a subscriber number. In master/slave operation mode, M number of receivers are linked together and the possible number of virtual receiver lines in a virtual receiver is M times the number in a normal mode of operation.
    Type: Grant
    Filed: March 25, 2005
    Date of Patent: August 9, 2011
    Assignee: Honeywell International Inc.
    Inventors: Glenn A. Wontorcik, Narine Boodoosingh, Christopher D. Martin, Richard H. Hinkson
  • Patent number: 7995605
    Abstract: The present invention describes a communications system having a first link partner and a second link partner that are connected by a communications link having at least four pairs of conductors. According to IEEE Standard 802.3 (e.g. Ethernet) for 1000Base-T, a data link is maintained (in a period absent data transmission) by sending idle signals over four pairs of conductors of the cable to maintain a logical connection. This idle signal scheme is replaced with an alternate idle signaling scheme that uses only two pairs of conductors to maintain a logical connection and therefore can operate with using lower power. The other two pairs of conductors of the four pairs of conductors are unused to maintain a logical connection absent data transfer, and therefore can be used to implement a Suspend Mode of operation. During Suspend Mode, the physical layer of each link partner powers down unnecessary circuitry so as to operate in a low power environment.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: August 9, 2011
    Assignee: Broadcom Corporation
    Inventors: Richard G. Thousand, Kevin T. Chan, Kevin Brown
  • Patent number: 7990996
    Abstract: A data transmission network having at least two devices to transmit and receive data with the devices connected via a passive transmission device so that the data is transmitted between the devices using the passive transmission device. Each of the devices includes a converter to control data transmission using the passive transmission device.
    Type: Grant
    Filed: October 10, 2001
    Date of Patent: August 2, 2011
    Assignee: Hirschmann Electronics GmbH
    Inventors: Rolf Reuschen, Bernhard Schmid
  • Patent number: 7990924
    Abstract: Mobile node registration with the home network of the mobile node is delayed when the mobile node moves to a foreign network. The mobile node has a home network in which the mobile node has a home address. In response to the mobile node moving to a foreign network (such as by being turned on in the foreign network), the mobile node receives a care-of address. Where the mobile node has no ongoing communication sessions, the mobile node waits to register its care-of address with its home agent in the home network until the mobile node initiates a communication session within the foreign network, which may not ever occur. The mobile node by registering the care-of address with the home agent informs the home agent where to forward data sent to the mobile node's home address.
    Type: Grant
    Filed: January 27, 2008
    Date of Patent: August 2, 2011
    Assignee: International Business Machines Corporation
    Inventors: Venkata R. Jagana, Krishna Kumar
  • Patent number: 7986645
    Abstract: An apparatus and method for generating a frame in a communicating system supporting a full duplex relay. A controller configures a legacy zone and a new zone in a downlink section of the frame according to a TDM scheme, configures the new zone of the downlink section to include an access zone and a relay zone according to a TDM scheme, configures a legacy zone and a new zone in an uplink section of the frame according to the TDM scheme, and configures the new zone of the uplink section to include an access zone and a relay zone according to an FDM scheme.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: July 26, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tak-Ki Yu, Seung-Hee Han, Young-Bin Chang, Hyun-Jeong Kang
  • Patent number: 7986643
    Abstract: Disclosed are, inter alia, methods, apparatus, computer-storage media, mechanisms, and means associated with determining and distributing routing paths for nodes in a network. For each route computational node of multiple route computational nodes in a network: a tree of paths between itself and each of multiple nodes in the network is determined. A particular tree of paths is determined for a particular node of these multiple nodes to the other nodes based on at least two of the determined trees of paths for the route computational nodes. The particular node then sends a packet towards a destination based on the particular tree of paths determined for the particular node.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: July 26, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: Pascal Thubert, Eric Levy-Abegnoli, Jean-Philippe Vasseur
  • Patent number: 7986618
    Abstract: Systems and methods for distinguishing a node failure from a link failure are provided. By strengthening the assumption of independent failures, bandwidth sharing among backup tunnels protecting links and nodes of a network is facilitated as well as distributed computation of backup tunnel placement. Thus a backup tunnel overlay network can provide guaranteed bandwidth in the event of a failure.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: July 26, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: Anna Charny, Robert Goguen, Carol Iturralde, Elisheva Hochberg, Jean Philippe Vasseur
  • Patent number: 7983178
    Abstract: A fabric simulation device implementing a method for generating a simulated fabric of a simulated storage area network. In operation, the fabric simulation device logs into a physical storage area network as an unofficial physical fiber channel switch connected to the simulated storage area network, and maintains a fabric testing relationship between the physical storage area network and the simulated storage area network based on being logged into the physical storage area network as the unofficial physical fiber channel switch.
    Type: Grant
    Filed: October 16, 2006
    Date of Patent: July 19, 2011
    Assignee: International Business Machines Corporation
    Inventors: David F. Dehaan, Louie A. Dickens
  • Patent number: 7983143
    Abstract: A method and apparatus is provided for transmitting an orthogonal frequency domain multiple access (OFDMA) signal including a synchronization channel signal transmitted within a localized portion of a bandwidth of the OFDMA signal (818), the synchronization channel signal having predetermined time domain symmetry within the localized portion of the bandwidth (816) and including information for providing at least partial cell identification information (812). The synchronization channel signal enables an initial acquisition and cell search method with low computational load which provides OFDMA symbol timing detection and frequency error detection (1112) and frame boundary detection and cell specific information detection (1114) in an OFDMA system supporting multiple system bandwidths, both synchronized and un-synchronized systems, a large cell index and an OFDMA symbol structure with both short and long cyclic prefix length.
    Type: Grant
    Filed: February 8, 2006
    Date of Patent: July 19, 2011
    Assignee: Motorola Mobility, Inc.
    Inventors: Hidenori Akita, Kevin L. Baum, Brian K. Classon, Masaya Fukuta, Hiroshi Hayashi, Vijay Nangia, Robert T. Love, Kenneth A. Stewart
  • Patent number: 7983152
    Abstract: One embodiment relates to a method of providing dual-homing in a Layer 2 switch. A determination is made as to whether a link is available to an upstream network on for a currently active port. If the link is unavailable, then the Layer 2 switch a) performs a switchover such that the currently active port becomes a newly passive port, and a currently passive port becomes a newly active port, b) clears entries in an address table of the Layer 2 switch, and c) spoofs MAC addresses out of the newly active link. Other embodiments are also disclosed.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: July 19, 2011
    Assignee: Garrettcom, Inc.
    Inventors: Dileep Sivasankaran, Frank S. Madren
  • Patent number: 7983289
    Abstract: A packet is transmitted such that jitter of a packet transmission time period is suppressed. A transmission apparatus includes a stream data obtaining unit obtaining stream data from a source outside of the transmission apparatus, a coding unit compressing and coding the stream data, a packet generation unit generating a packet, a transmission buffer unit temporarily storing data, a transmission method selection unit selecting any one of “jitter suppressed transmission” and “normal transmission” as a transmission mode, a communication I/F unit transmitting the packetized stream data with a transmission method selected by the transmission method selection unit, a communication medium detection unit obtaining data for controlling communication via the communication I/F unit by identifying a communication medium, a time keeping unit generating time information, an input unit accepting manipulation input, and a storage unit storing data in a non-volatile manner.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: July 19, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shigeyuki Yamanaka, Yusuke Yamada
  • Patent number: 7978614
    Abstract: Techniques that assist in processing of failure detection protocol (FDP) packets. Techniques are provided that assist a CPU of a network device in processing incoming FDP packets. In one embodiment, a module is provided in a network device for detecting and flagging the non-receipt of FDP packets by the network device for one or more FDP sessions. In this manner, the task of detecting non-receipt of FDP packets is offloaded from the CPU of the network device. This enables the network device to support newer FDPs with shorter periodic interval requirements.
    Type: Grant
    Filed: December 10, 2007
    Date of Patent: July 12, 2011
    Assignee: Foundry Network, LLC
    Inventors: Yuen Wong, Pedman Moobed
  • Patent number: 7978654
    Abstract: As a random access channel (RACH), two types of RACHs, a synchronous RACH and an asynchronous RACH are prepared, condition of a mobile station is classified depending on whether there is temporal synchronization in the mobile station and whether a resource is allocated, and depending on each case, any one of the synchronous RACH/the asynchronous RACH/uplink shared control channel (USCCH) is adaptively selected to carry out connection processing.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: July 12, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Katsunari Uemura, Wahoh Oh, Yasuyuki Kato, Shohei Yamada
  • Patent number: 7978610
    Abstract: A method for asynchronous transmission of communication data between periodically blanked terminals separated by an unknown distance is disclosed. A bursted signal is transmitted from a first terminal with a burst time tB and a burst cycle period T. The bursted signal is received at a second terminal. A bursted response signal is transmitted from the second terminal to the first terminal. The bursted response signal has a burst cycle period of T/2 and includes a pair of response bursts, with each burst in the pair having a burst time tA?T/2?tB. Each burst in the pair of response bursts carries an identical data payload. At least one of the response bursts is received at the first terminal.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: July 12, 2011
    Assignee: L-3 Communications Corp.
    Inventors: William K. McIntire, Larry S. Thomson, John J. Carver, II
  • Patent number: 7974292
    Abstract: A method and apparatus for providing a method to enable subscribers of broadband access services, such as Digital Subscriber Loop based or Cable based broadband access services, to dynamically reconfigure their access arrangements as a function of the application they invoke are disclosed. Subscribers that subscribe to a basic amount of bandwidth can dynamically increase their bandwidth allocation when they invoke a voice or video application by simply requesting the application. The present invention provides a method for broadband service providers to dynamically adjust access bandwidth allocation for subscribers by detecting signaling messages, such as application request setup messages and disconnect messages.
    Type: Grant
    Filed: December 31, 2005
    Date of Patent: July 5, 2011
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Marian Croak, Hossein Eslambolchi