Patents Examined by Steven Nguyen
  • Patent number: 7110391
    Abstract: A telephony system includes a packet-based data network that is coupled to various network elements. The network elements include interface devices that are coupled to corresponding stimulus devices. The stimulus devices may include stimulus telephones or a telephone exchange system. Each interface device receives a stimulus message from a corresponding stimulus device. The stimulus message is encapsulated by the interface device into a packet, such as an Internet Protocol (IP) packet. The packet is communicated across the data network to the target device, which may be another interface device. At the receiving end, the interface device receives the packet, decapsulates the packet to retrieve the stimulus message, and sends the stimulus message to a corresponding stimulus device.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: September 19, 2006
    Assignee: Nortel Networks Limited
    Inventors: Shane M. Rogers, Lyle R. Button, Timothy A. Kuechler
  • Patent number: 7110377
    Abstract: Mobile unassisted dormant handoff in a wireless communication system supporting packet data communications. While in a dormant mode, a mobile node may change packet zones, wherein different packet zones are serviced by at least one different infrastructure element, without identifying the change to the system. The change in packet zone does not necessarily trigger establishment of a communication path for the mobile node until there is packet data ready for communication. In one embodiment, mobile assistance is adapted to the system, and is disabled at the mobile node by an indication in a system parameter message transmitted by the system and received by the mobile node.
    Type: Grant
    Filed: October 10, 2002
    Date of Patent: September 19, 2006
    Assignee: Qualcomm Incorporated
    Inventors: Raymond T. Hsu, Arungundram C. Mahendran
  • Patent number: 7110390
    Abstract: Instead of having to subscribe to multiple telephone lines for multiple devices that a user has, a module of the present invention can connect each of the user's devices to an outside communications network using the same telephone line. Such multiple inside connections to the outside communication network using the same telephone line is achieved by provisioning within the invention module the appropriate telephone and computer interface units for the user's telephones and computers, and an appropriate network interface unit for connection to the telephone line that connects the invention module to the external communications network.
    Type: Grant
    Filed: April 20, 1999
    Date of Patent: September 19, 2006
    Assignee: MCI, Inc.
    Inventor: Kevin Gatesman
  • Patent number: 7110395
    Abstract: A method for converting a public switched telephone network call to a data network call. In one approach, the method includes receiving the public switched telephone network call from an origination phone at a destination phone and then identifying a caller identifier for the public switched telephone network call. The call is then rejected and a call placed to a network service provider. Once connected to the network, the network address for the origination phone is determined and the call is completed across the data network. Alternatively, a PSTN call is placed from an origination phone to a destination phone. The origination phone detects a rejected call from the destination phone and places a call to a network service provider. Once connected to the network, the network address for the destination phone is determined and the call is completed across the data network. A network phone capable of acting as either a destination phone or an origination phone is also discussed.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: September 19, 2006
    Assignee: Cisco Technology, Inc.
    Inventor: Dana Lynn Blair
  • Patent number: 7110360
    Abstract: A fabric request controller implements flow control for data cells to a network or switch fabric. The fabric request controller issues request messages to the fabric switch and receives back corresponding grant messages. The fabric request controller includes a credit counter for metering the number of allowable outstanding requests. A fake request vector component periodically issues fake requests to compensate for information loss on the switch fabric.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: September 19, 2006
    Assignee: Juniper Networks, Inc.
    Inventors: Lawrence Hui, Song Zhang, Anurag P. Gupta, Phil Lacroute, Michael Beesley
  • Patent number: 7106715
    Abstract: A system is provided for transmitting data to a plurality of devices. A data source receives data from a video broadcasting source, such as a digital television provides, through a data cable. The data source identifies devices to receive particular sets of data, such as particular programs, from the data cable. The data source identifies particular settings for transmitting to particular devices. The data source adjusts a transmission power to a first device to efficiently provide data reliably to the first device. The data source can assign more or less power for transmitting data to the first device. The data source provides data to the source device using a first data channel. The data source provides data to a second device using a second data channel. The data source receives acknowledgements and control information from the first device and the second device using the second data channel.
    Type: Grant
    Filed: November 16, 2001
    Date of Patent: September 12, 2006
    Assignee: ViXS Systems, Inc.
    Inventors: James Robert Kelton, Michael David Cave, James Ward Girardeau, Jr., Michael R. May, Paul Morris Astrachan, Anselmo Pilla, James Doyle, Shawn Saleem, Mathew A. Rybicki
  • Patent number: 7106732
    Abstract: A multi-level lookup table includes a plurality of search levels with each search level including a plurality of subtrees, each subtree representing a plurality of nodes. A search of the multi-level lookup table for an entry corresponding to a search key results in a value stored in an entry associated with the node in a subtree. A default value is associated with the root of the subtree. Multiple entries for the subtree can store the default value. To minimize route update time, the default value associated with the subtree is stored in a single location. Instead of storing the default value in multiple entries, each entry stores a use default indicator to indicate that the default value stored in the single location is to be used. To further reduce the number of locations to modify to update the default route, the single location can store an inherit indicator to indicate that the default value for the subtree is inherited from another subtree.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: September 12, 2006
    Assignee: MOSAID Technologies Incorporated
    Inventor: David A. Brown
  • Patent number: 7103031
    Abstract: Disclosed is a method of transmitting/receiving a broadcast message in a mobile communication system enabling to transmit a broadcast message including a video and the like. The present invention proposes an additional broadcast channel so as to transmit a broadcast message such as a video to a mobile station. Moreover, the present invention proposes a method of enabling a mobile station to confirm a summary or channel information so as to demand a broadcast message selectively by previously transmitting information, which is called a data burst summary message or a data burst message by the present invention, about the summary of the broadcast message or a channel through which the broadcast message will be transmitted prior to transmitting the broadcast message having large traffic volume.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: September 5, 2006
    Assignee: LG Electronics Inc.
    Inventors: Young Jo Lee, Jong Hoe An, Woo Seok Kang
  • Patent number: 7103048
    Abstract: In a network including a first local area ATM network, a second local area ATM network and a public ATM network connected to the first and second ATM local area networks, multiplex gateway devices are interposed between the local area ATM networks and the public ATM network, respectively. The multiplex gateway apparatus includes ATM transmission line units for calculating statistical information represented by a mean rate and a peak cell rate of ATM cells in the transmission ATM signal. A statistical multiplexing control unit conducts rate addition after statistical multiplexing according to the statistical information and determines the rate addition result. A piece-wise constant bit rate control unit calculates a required piece-wise constant bit rate on the basis of the rate addition result and performs cell multiplex control on the basis of this piece-wise constant bit rate.
    Type: Grant
    Filed: March 10, 2000
    Date of Patent: September 5, 2006
    Assignee: Juniper Networks, Inc.
    Inventor: Yoshiaki Nozawa
  • Patent number: 7103004
    Abstract: To improve the performance of DSL modems, a DSL duplexing ratio for a new communication is selected according to the communications needs of an application. A required upstream and downstream bit rate for application communications is determined. From the ratio of these bit rates, a desired duplexing ratio is calculated. The operation of the modem is then adapted to choose a duplexing ratio that approximates the desired duplexing ratio for the application. To optimize modem operation, the size and position of the upstream and downstream bandwidths used for transmission are intelligently selected when the bit rate necessary for making the transmission is less than the total available bandwidth provided by the chosen duplexing ratio. By intelligently selecting a minimum number of subcarriers for Digital Multi-tone (DMT) signal transmission, a reduction in line driver power consumption is effectuated.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: September 5, 2006
    Assignee: STMicroelectronics, Inc.
    Inventor: Xianbin Wang
  • Patent number: 7099277
    Abstract: A method and system connects a first terminal via multiple networks to a second terminal. An environment description is acquired and parsed by a description parser into cost parameters using a set of rules. An objective function evaluates the cost parameters to determine an optimal path to connect the first terminal to the second terminal through the multiple networks using a switch. The selection of the optimal path can be done periodically during a particular application session.
    Type: Grant
    Filed: February 20, 2002
    Date of Patent: August 29, 2006
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Zafer Sahinoglu, Anthony Vetro
  • Patent number: 7099323
    Abstract: A multicast network device, such as a router, may support a plurality of multicast routing protocols. Each multicast routing protocol maintains its own routing table that stores the multicast routes known to the multicast routing protocol. A unicast routing table may also be included in the network device. Some multicast protocols make us of unicast as well as multicast routes. A single multicast routing table is provided to store the multicast routes for each multicast routing protocol and a selected set of unicast routes form the unicast routing table. Multicast routing table management logic controls the content of the multicast routing table. The single multicast routing table allows for efficient access to the multicast and unicast routes as well as for the exchange of routing information between different multicast routing protocols.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: August 29, 2006
    Assignee: Nortel Networks Limited
    Inventors: Janet Doong, Richard Crump, Michael Kinzlmaier
  • Patent number: 7095721
    Abstract: In a method for terminating a plurality of ATM lines for a base station modulator/demodulator in a mobile communication system for data communication between upper stations and a base station by a transmission method wherein ATM cells are mapped utilizing an existing leased line as a physical medium sublayer, when an increase in capacity of the base station necessitates leased line interfaces corresponding to a plurality of upper stations, processing is carried out in such a manner that leased line numbers are added to respective HEC regions of ATM cells sent from each upper station into a leased line interface section, whereby the addition of the function of the leased line interface section involved in an increase in the leased line can be minimized and the additional function can be simply designed utilizing a conventional technique.
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: August 22, 2006
    Assignee: Juniper Networks, Inc.
    Inventor: Hirofumi Yamagiwa
  • Patent number: 7095729
    Abstract: In one embodiment, a forward error correction code is applied to a group of data packets to create a coded group of packets by supplementing a set of parity packets for each group of data packets. The data packets of a first group of packets and a set of parity packets corresponding to the data packets are transmitted. If an acknowledgement is received, sending of additional packets is ceased. If an acknowledgment is not received, parity bits continue to be transmitted.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: August 22, 2006
    Assignee: Intel Corporation
    Inventors: Daniel Grobe Sachs, Igor V. Kozintsev, Minerva Ming Lee Yeung
  • Patent number: 7092380
    Abstract: A method and system are disclosed in which an Internet subscriber can establish real-time voice conversations over the Internet. By performing a call negotiation scheme to identify and locate the other calling party, an Internet telephone can establish a voice communication channel over the Internet to a telephony or computer device.
    Type: Grant
    Filed: April 5, 2000
    Date of Patent: August 15, 2006
    Assignee: Cisco Technology, Inc.
    Inventors: Michael C. Chen, Jan Fandrianto, Chun-Chau Lin, Michael P. Sadikun, Budi Sutardja, Ramah Sutardja
  • Patent number: 7092398
    Abstract: A system, method and computer program product are provided for charging for Internet Protocol (IP) usage utilizing a wireless network. Initially, call description record information is received from a wireless network in real-time. Such call description record information is associated with customer communication over the wireless network. Further collected in real-time is IP content usage information associated with the transmission of content using an IP during the customer communication in real-time. The customer is then charged for the customer communication utilizing the call description record information and the IP content usage information.
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: August 15, 2006
    Assignee: Amdocs (Israel) Ltd.
    Inventor: Limor Schweitzer
  • Patent number: 7092363
    Abstract: The invention provides a method and system for adaptive point-to-point communication between a wireless communication system and a non-wireless backhaul communication system. The wireless physical layer and the wireless media-access-control (MAC) layer collectively include a set of parameters, which are adaptively modified by base station controllers in multiple cells of the wireless communication system for intercommunication among those multiple cells. The IP layer and QoS (quality of service) parameters for communication between a selected base station controller and the non-wireless backhaul communication system collectively include a second set of parameters, which are adaptively modified by the selected base station controller for intercommunication between that selected base station controller and the non-wireless backhaul communication system.
    Type: Grant
    Filed: June 26, 2000
    Date of Patent: August 15, 2006
    Assignee: Aperto Networks, Inc.
    Inventor: Reza Majidi-Ahy
  • Patent number: 7088737
    Abstract: A method and apparatus for combining data packets having different protocol encapsulations within a circuit is described. In one embodiment, a method includes receiving a number of Internet Protocol (IP) packets over Ethernet on a real circuit. Each IP packet over Ethernet has an Ethernet header and an IP address. The method also includes removing the Ethernet header from the number of IP packets. Moreover, a number IP packets within a Point-to-Point Protocol (PPP) over Ethernet are received on at least one virtual circuit. Each of the number of IP packets within the PPP over Ethernet includes a PPP header, a PPP over Ethernet (PPPoE) header, an Ethernet header and an IP address. Additionally, the at least one virtual circuit runs within the real circuit. The method also includes removing the PPP header and the PPPoE header from the number of IP packets within the PPP over Ethernet and removing the Ethernet header from the number of IP packets within the PPP over Ethernet.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: August 8, 2006
    Assignee: Redback Networks Inc.
    Inventor: David Carrel
  • Patent number: 7088705
    Abstract: A localized wireless gateway system provides wireless telephone communication, and for at least interexchange communication, provides voice telephone access to a public packet data network, such as the Internet. The wireless gateway system includes base station transceivers and a packet service gateway coupling the transceivers to the public packet data network. The packet service gateway also provides for signaling through the network to establish two-way voice communication sessions. In the preferred implementation, the localized wireless gateway system includes at least one radio port control unit coupled to the base station transceivers for controlling calls through the transceivers. The localized wireless gateway system also includes a telephone switch, such as a digital PBX, selectively providing telephone communication channels between the radio port control unit(s) and the packet service gateway.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: August 8, 2006
    Assignee: Verizon Services Corp.
    Inventors: James E. Curry, Robert D. Farris
  • Patent number: 7088671
    Abstract: A multiple access communication system with communication links between one or more central nodes each with a transmitter 1 including an antenna with one or more antenna beams, and user terminals 2 located in antenna beam coverage area 3. User terminals 2 assigned to one beam coverage area 3 use multiple access channels that are mutually orthogonal for receiving digital message information. These multiple access channels are reused by other user terminals 2 in adjacent and other beam regions. Single-axis error correcting coding 4, interleaving 5, channel assignment changes 7, precoding 8, and selected 90° phase rotation 9 are used in the central node transmitter 1 to reduce potential interference at a user terminal 2 from signals using the same orthogonal multiple access channel destined for user terminals 2 in other beam coverage areas 3. The communication system can realize complete reuse of all orthogonal multiple access channels in other beam coverage areas, i.e., a reuse factor of unity.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: August 8, 2006
    Inventor: Peter Monsen