Patents Examined by Ricardo Pizarro
  • Patent number: 7187686
    Abstract: A telecommunication system includes a digital switch, a local loop coupling the digital switch to a subscriber location, wherein a segment of the local loop includes copper twisted pair and wherein an asymmetrical digital subscriber line is carried by the local loop, the asymmetrical digital subscriber line including a plurality of data packets capable of carrying a plurality of derived digital telephone lines. The telecommunication system further includes a subscriber unit coupled to the asymmetrical digital subscriber line. The subscriber unit monitors the content of at least one of the plurality of data packets, receives an off-hook signal in response to an action of a user, and initiates a first derived digital telephone line of the plurality of derived digital telephone lines in response to the off-hook signal.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: March 6, 2007
    Assignee: SBC Properties, B.P.
    Inventors: Wilbur John Walkoe, Jr., James Stewart Barber, Michael George Gorman, Robert Wesley Bossemeyer, Jr., Michael Steven Pickard, Denise Violetta Kagan, Scott Christopher Goering, Bruce Edward Stuckman, Michael Tisiker, Jeffrey Neumann, David Anthony Orwick
  • Patent number: 7126969
    Abstract: Provided is a system and method for reliably processing changes in signaling bits for telecommunication transmitted over a network. The system includes a plurality of framer farms adapted to generate a corresponding plurality of event signals responsive to a corresponding plurality of signaling events. An event manager is adapted to sequence the plurality of event signals. The plurality of framers is adapted to receive a corresponding plurality of digital signals, extract therefrom corresponding signaling data, and generate a corresponding event signal responsive to the signaling data. A signaling queue is adapted to queue the signaling data and a signal register is adapted to read the signaling queue. The event manager includes an event queue adapted to queue the plurality of event signals, a status register adapted to maintain a status of the event queue, and an event register adapted to read the event queue.
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: October 24, 2006
    Assignee: Cisco Technology, Inc.
    Inventors: Jose Uemura, Rafael Gomez
  • Patent number: 7075944
    Abstract: A frame for multiplexing multi-traffic frames of layers on a same carrier wave and an apparatus thereof is constituted by an overhead and a payload. The overhead is constituted by: a data length identifier indicating a frame or a payload length; a flow identifier indicating an attribute of the frame; and a frame header overhead error check (FHEC) storing a result obtained by converting bytes from the head to a specified M-th byte of the frame into a numerical value of n bytes according to a certain coding method. A maximum length of the payload is computed from the data length identifier of the overhead. In the payload, traffic for the layers 1 to 3 can be accommodated. Even if the ATM cell and the frame are multiplexed, since coding methods for the FHEC and the HEC are different, the ATM cell and the frame can be extracted individually.
    Type: Grant
    Filed: November 15, 2000
    Date of Patent: July 11, 2006
    Assignee: NEC Corporation
    Inventor: Kazuo Takagi
  • Patent number: 7072329
    Abstract: In a multi-layer telecommunications system which includes an application layer and a transport layer, differing transport technologies are interworked without terminating the application layer signaling or without involving a technology interworking in the control plane of the application layer (e.g., without interworking in the application signaling). In various illustrated embodiments, the application layer is a radio network layer of a wireless telecommunications system. In at least some embodiments of the present invention a transport layer interworking function is situated on an interface between two nodes of the radio access network (RAN). The interworking function can be located in a separate node which may be a node having both ATM and internet protocol (IP) interfaces. There are numerous modes of implementing the interworking of the present invention, regardless of which interface is affected (e.g., an Iur interface, an Iu interface, or an Iub interface).
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: July 4, 2006
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Per Willars, David Comstock
  • Patent number: 7068644
    Abstract: A wireless access gateway provides a telecommunications link between a packet switched network and a base transceiver station (BTS), the BTS enabling wireless communication with mobile stations in a wireless coverage area. A session manager controls sessions through the packet switched network, and a mobility server performs mobility management for mobile stations being served by wireless access gateways. A wireless access gateway includes a packet agent, a coding agent, a radio frequency (RF) manager, and a signaling control agent. The packet agent packetizes frames from the BTS into packets and depacketizes packets into frames for the BTS. The coding agent transcodes content contained in packets from a first format to a second format. The RF manager performs RF management of the BTS. The signaling control agent sends queries to and receives responses from the session manager to control the operation of the wireless access gateway.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: June 27, 2006
    Assignee: Sprint Spectrum L.P.
    Inventors: Von K. McConnell, Rakesh C. Saxena
  • Patent number: 7068642
    Abstract: A system and method of propagating exclusion records between a plurality of networked call centers is provided. Each call center includes a CTI system having a dynamic data record exclusion system. The system includes an exclusion record exporter and an exclusion record importer interfacing the dynamic data record exclusion system at each networked CTI system, which export and import exclusion records that are generated at one CTI system to the remaining networked CTI systems. The method begins by maintaining at least one exclusion table including at least one exclusion record in a first call center's dynamic data record exclusion system. Then, the exclusion records, along with a list of the networked call centers to which the exclusion records should be sent, are sent to an exclusion record exporter, where they are saved in a transfer file. The exclusion record exporter then transfers each transfer file to a defined directory at an exclusion record importer at at least one other networked call center.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: June 27, 2006
    Assignee: Concerto Software, Inc.
    Inventor: Saima Khan
  • Patent number: 7061900
    Abstract: An electronic commerce distributed network is disclosed that includes a plurality of interconnected processing nodes. Each processing node (50) includes a first sub-node (52) and a second sub-node (54) that are connected to communicate information and are in geographically remote locations. The first sub-node (52) of each processing node (50) has an active state in which the first sub-node (52) communicates with other processing nodes and processes electronic commerce messages communicated with originator/recipient organizations. The second sub-node (54) of each processing node (50) has a mirror state in which the second sub-node (54) mirrors the first sub-node (52) as well as an active state in which the second sub-node (54) communicates with other processing nodes and processes electronic commerce messages communicated with originator/recipient organizations. The first sub-node (52) of each processing node (50) is initially in the active state, and the second sub-node (54) is initially in the mirror state.
    Type: Grant
    Filed: July 9, 2001
    Date of Patent: June 13, 2006
    Assignee: Sterling Commerce, Inc.
    Inventors: Francis Hsieh, Brad Manring
  • Patent number: 7058006
    Abstract: Synchronization symbol insertion section 102 inserts a synchronization symbol into a signal digital-modulated by modulation section 101. 0 symbol insertion section 103 inserts a 0 symbol into the signal with the synchronization symbol inserted. The signal with the synchronization symbol and 0 symbol inserted in this way is sent to IFFT section 104 to be subjected to an IFFT calculation. Then, guard interval insertion section 105 inserts a guard interval into the IFFT-transformed signal waveform. Then, the signal with the guard interval inserted in this way is D/A-converted by D/A converter 106. The D/A-converted signal is subjected to normal radio transmission processing and then transmitted.
    Type: Grant
    Filed: August 17, 2004
    Date of Patent: June 6, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroaki Sudo, Kimihiko Ishikawa
  • Patent number: 7054286
    Abstract: This invention provides a highly flexible multiplexing scheme for Direct Sequence CDMA systems enabling the CDMA system to flexibly allocate CDMA channel resources between packet-switched broadcast channels and fast-circuit-switched dedicated channels in order to optimize system throughput. A method and system are provided for operating a communication system. The method has steps of: flexibly allocating CDMA channel resources between packet-switched broadcast channels and fast-circuit-switched dedicated channels in order to optimize system throughput, and employing a side channel as required to send all or a part of a total amount of data, depending on the total amount of the data. A bandwidth allocation scheme allocates a set of CDMA channels for burst packet-switched channels, and data is time division multiplexed over the set of burst CDMA channels providing a wide bandwidth data pipe for packet-switched data.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: May 30, 2006
    Assignee: L-3 Communications Corporation
    Inventors: Richard B. Ertel, Eric K. Hall, Thomas R. Giallorenzi, Philip L. Stephenson, Johnny M. Harris, Edward P. Newren
  • Patent number: 7054318
    Abstract: A method of indicating the length of a mini cells in a mobile telephony network. Non linear coding of a short fixed length field in the header of the mini cell is described. Either an extension bit method or an extension code method is used to extend the length field so as to increase the number of length values available for coding of the mini cell sizes. The length of a mini cell is indicated in the individual mini cell or is indicated indirectly using a CID/length mapping table. Mini cell sizes are changed during a connection and methods are described for doing this. Cell header reading devices for extracting user information of individual mini cells are described. A mobile telephone network using the cell header reading devices is described.
    Type: Grant
    Filed: October 23, 2001
    Date of Patent: May 30, 2006
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Lars Göran Vilhelm Eneroth, Karl Anders Näsman, Lars-Göran Petersen
  • Patent number: 7054297
    Abstract: A communications system includes base transceiver stations providing wireless services for mobile units. The system further includes a packet network coupling the stations to a gateway. To distribute information received for communication to a mobile unit, the gateway may encapsulate the information as a multicast packet addressed to a multicast address. This multicast address corresponds to a multicast group associated with the mobile unit. The packet network distributes copies of the multicast packet to a group of stations that are registered for the multicast group. These stations may then communicate information from the multicast packet to the mobile unit using wireless communications techniques.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: May 30, 2006
    Assignee: Cisco Technology, Inc.
    Inventor: Malcolm M. Smith
  • Patent number: 7042853
    Abstract: The present invention provides an interactive two-way multimedia messaging service transfer method. A user sends a multimedia message to initiate the interactive 2-way transfer. A multimedia messaging service center sends the message to a multimedia messaging service dispatcher, so that the appropriate service provider is contacted according to the multimedia message. The digital multimedia content is obtained from the content service provider and a common service platform transforms the information into a multimedia message reply. Finally, the multimedia messaging service center sends the message to the user. The invention receives and transmits multimedia messages in order to provide the interactive two-way transmission system. In this way, mobile communication equipment users can access interactive content such as online games, anytime and anywhere.
    Type: Grant
    Filed: April 9, 2004
    Date of Patent: May 9, 2006
    Assignee: Far EasTone Telecommunications Co., Ltd.
    Inventors: Sheng-Hsuan Liao, Meng-Ying Tsai
  • Patent number: 7039071
    Abstract: A method and a device are provided for triggering an uplink transmission in a cable modem. A number of time indicators (301) are received in a downlink direction. There is established knowledge about a total time offset related to propagation delays in a network from which the time indicators are received. There is also established knowledge about an allocated uplink transmission slot number determined in relation to the received time indicators. The total time offset is reduced into a remainder value that is smaller than the total time offset. A shifted slot counter (304, 405) is synchronized to a shifted time base (302, 303) which has an offset to the time base provided by the received time indicators (301), said offset being equal to said remainder value. An uplink transmission triggering signal is generated as a response to said shifted slot counter (405) giving a certain slot number.
    Type: Grant
    Filed: December 13, 2000
    Date of Patent: May 2, 2006
    Assignee: Nokia Corporation
    Inventor: Harri Pekonen
  • Patent number: 7035270
    Abstract: A home networking gateway provides an interface between an HFC network and an in-home network. Full voice and data connection between the HFC network and each device in the in-home network is provided through the interface. A translator included in the home networking gateway is utilized to provide a mapping between the communication protocols used in the in-home network and the protocols used in the HFC network, eliminating the need for the in-home network to be dependent upon the HFC-specific protocols.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: April 25, 2006
    Assignee: General Instrument Corporation
    Inventors: Richard Moore, Jr., William H. Blum
  • Patent number: 7027432
    Abstract: A method of configuring a network access device connected to an access network connected to a plurality of service networks, the network device having a first network address allocated to a subscriber of services of a first service provider provided by a first service network, with a new network address allocated to a second subscriber of services of either the first service provider, or a second service provider provided by a second service network. The method comprises the steps of: sending a request from the network access device to the access network with user credentials for the second subscriber requesting access to the first service provider or a change to the second service provider; receiving a response from the access network; and initiating a network address change request using a configuration protocol.
    Type: Grant
    Filed: March 20, 2001
    Date of Patent: April 11, 2006
    Assignee: AT&T Corp.
    Inventors: Sean E. Carolan, John W. Garrett, Charles Robert Kalmanek, Jr., Han Q. Nguyen, Kadangode K. Ramakrishnan
  • Patent number: 7006481
    Abstract: A method and system for providing ubiquitous coverage and seamless connectivity for devices which support Internet access via third generation (3G) cellular and IEEE 802.11 wideband local area network (WLAN) technologies, irrespective of which radio access technology is available.
    Type: Grant
    Filed: October 8, 2003
    Date of Patent: February 28, 2006
    Assignee: InterDigital Technology Corporation
    Inventor: Stephen E. Terry
  • Patent number: 7002971
    Abstract: An asymmetric network system manages bandwidth allocation and configuration of remote devices in a broadband network. A modular architecture of the system permits independent scalability of upstream and downstream capacity separately for each of the upstream and downstream physical paths. Allocation of downstream bandwidth to requesting devices is made according to bandwidth utilization by other devices, bandwidth demand by the requesting remote device, class or grade of service by the requesting remote device or bandwidth guaranteed to other remote devices. Configuration parameters remotely managed by the network include device addresses (global and local), transmission credit values, upstream channel assignment and upstream transmit power level. Further, management of device configuration profiles and bandwidth allocation occurs through control and response packets respectively generated by the network and the remote devices according to network operating software located at both ends.
    Type: Grant
    Filed: July 5, 2000
    Date of Patent: February 21, 2006
    Assignee: Hybrid Patents Incorporated
    Inventors: Frederick Enns, Eduardo J. Moura, Jan Maksymilian Gronski, Ramesh Neelmegh, Jong C. Kim
  • Patent number: 7002953
    Abstract: A system allows prompt multimedia data transfer during communication between personal telephones through a dedicated line connecting PBXs. A database connected to each PBX stores association information between a personal telephone and a personal computer. When a multimedia application installed in one personal computer associated to one personal telephone starts up, another multimedia application installed in the other personal computer associated to the other personal telephone automatically starts up allowing multimedia data communicate with each other.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: February 21, 2006
    Assignee: NEC Corporation
    Inventor: Shinobu Wakatsuki
  • Patent number: 7002949
    Abstract: A bandwidth efficient routing protocol for wireless ad-hoc networks. This protocol can be used in ad-hoc networks because it considerably reduces control overhead, thus increasing available bandwidth and conserving power at mobile stations. It also gives very good results in terms of the throughput seen by the user. The protocol is a table-driven distance-vector routing protocol that uses the same constraints used in on-demand routing protocols, i.e., paths are used as long as they are valid and updates are only sent when a path becomes invalid. The paths used by neighbors are maintained and this allows the design of a distance-vector protocol with non-optimum routing and event-driven updates, resulting in reduced control overhead.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: February 21, 2006
    Assignee: The Regents of the University of California
    Inventors: Jose Joaquin Garcia-Luna-Aceves, Jyoti Raju
  • Patent number: 7002920
    Abstract: With the addition of high-speed data traffic to traditional CDMA cellular networks, there is a need to efficiently utilize system capacity so that the quality of service of existing voice and low-speed data users is maintained while new high-speed data users are added to the network. Methods and systems are presented that control allocation of power to users, quality of service requirements, and/or user activity levels to enhance capacity utilization. These methods and systems are based on a method for estimating the capacity of a CDMA carrier with both voice and data users using an interference-based analysis of the reverse link. In particular, the methods enhance capacity utilization in a multi-code CDMA network architecture, in which several codes are allocated to a single high-speed data user for parallel transmission.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: February 21, 2006
    Assignee: Verizon Laboratories Inc.
    Inventors: Deepak Ayyagari, Samuel Resheff, Anthony Ephremides