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"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
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| Number | Title | Issue Date |
| 8018880 | Layer 2 virtual private network over PBB-TE/PBT and seamless interworking with VPLS A Layer 2 Virtual Private Network (L2VPN) system is provided. A Provider Backbone Bridge (PBB) network is provided which comprises a plurality of sites to be connected via a L2VPN. The plurality of sites in the PBB network is connected using a plurality of provider ... | 09/13/2011 |
| 7751350 | Full duplex network radio bridge with low latency and high throughput A full duplex radio bridge using two transceivers coupled to a first packet network, one for transmitting data toward another radio bridge coupled to a second packet network, and the other for receiving data transmitted from the first packet network toward said seco... | 07/06/2010 |
| 7440414 | Communication relay device with redundancy function for line in network in accordance with WAN environment and communication system using the same A communication relay device with a redundancy function for a line in a network under a WAN environment is connected to another, having a one-to-one relationship at both ends of each line by first and second ports to configure a redundancy channel between lines. A c... | 10/21/2008 |
| 7426192 | Network conference system, conference server, record server, and conference terminal In addition to a conference server 100, a record server 200 is provided. The conference data of a real-time conference is stored in a storage section 214 of the record server 200 (S2). A conference terminal 300a perfo... | 09/16/2008 |
| 7388831 | Method and apparatus for bond management according to hierarchy In a communication system having a plurality of physical communication ports, a hierarchical bond communication interface has a logical interface as a component of the bond at a top level of the hierarchy, and a first subjugate logical interface at a second level of... | 06/17/2008 |
| 7373442 | Method for using an expander to connect to different storage interconnect architectures Provided is a system for interfacing with storage units, including a backplane, at least one slot in the storage enclosure for receiving one storage unit, and two physical interfaces on the backplane for at least one slot. The storage unit is capable of being positi... | 05/13/2008 |
| 7366107 | Portable electronic devices including attaching circuits and methods of operating the same Portable electronic devices including a transmitter configured to request a packet data session are provided. An attaching circuit configured to collect information about the requested packet data session and determine default parameters of the portable electronic d... | 04/29/2008 |
| 7353038 | Method and apparatus for indicating an expected level of quality in a private push to talk (PTT) network A method and apparatus for indicating an expected level of quality in a private Push To Talk (PTT) network are disclosed. The method and apparatus receive at least one of an affiliation message and a talkgroup call request for a first subscriber unit of the private ... | 04/01/2008 |
| 7349700 | Communication system and method A method for communicating between an operator at an operator device and a user recipient includes enabling an operator of the operator device to enter a device-independent unique identifier for a user recipient by requiring interaction between the operator and the ... | 03/25/2008 |
| 7349512 | Clock synchronization in a distributed system The present invention provides an improved clock synchronization algorithm for a distributed system intended for real time applications by performing at the same time an off-set correction and a clock read correction at each node of the distributed system. Expensive... | 03/25/2008 |
| 7342875 | Space-time coded OFDM system for MMDS applications A communications system includes a base station that is configured to transmit a signal that is modulated according to a predetermined modulation scheme and an orthogonal frequency division multiplexing scheme, wherein the signal is encoded using space-frequency cod... | 03/11/2008 |
| 7333504 | Simultaneous serial transmission of messages with data field arbitration A communication system has a number of nodes connected to a serial data bus. Nodes communicate with each other by transmitting dominant and recessive bits during bit intervals as taught by the CAN (controller area network) arbitration protocol. According to the CAN ... | 02/19/2008 |
| 7327131 | Balun transformer and low-pass filter A mode-switching transformer, combined with a differential low-pass filter, including a first planar winding in a first conductive level having an external end terminal defining a common-mode input/output terminal; a second planar winding electrically in series with... | 02/05/2008 |
| 7313103 | Method and apparatus for interactive communication between half-duplex and full-duplex systems A communication system (100) includes a first communication unit (101, 102, 103, 104) capable of communicating over a full-duplex persistent-connection link provided by a full-duplex network (105) and a second communication unit (151, 152... | 12/25/2007 |
| 7292564 | Method and apparatus for use in real-time, interactive radio communications Delays associated with real-time, interactive communications are reduced. A communications device A engages in a real-time, interactive communication with a communication device B. User A provides digital content to be transmitted to device B. A real-time, interacti... | 11/06/2007 |
| 7288982 | Signal converting circuit A signal converting circuit includes a voltage level converter circuit, a power circuit, a signal separation circuit, a signal modifying circuit, and a clamping circuit. The power circuit provides voltage to the signal modifying circuit and the voltage level convert... | 10/30/2007 |
| 7280527 | Logically grouping physical ports into logical interfaces to expand bandwidth A method, system and computer program product for routing packets. A network device, e.g., router, may comprise a switch fabric coupled to a plurality of blades where each blade may comprise one or more network processors coupled to one or more physical ports. The p... | 10/09/2007 |
| 7277386 | Distribution of label switched packets Techniques are described for distribution of label switched packets, such as multiprotocol label switched (MPLS) packets, across multiple physical data paths. The techniques may, for example, be used to load balance the label switched packets across an aggregated li... | 10/02/2007 |
| 7269137 | Method for setting up an isochronous data stream connection, with the application of a predetermined, total isochronous delay on one or more routing paths Method for setting up an isochronous data stream connection between at least one entry terminal or talker and at least one addressee terminal or listener connected by at least one bridge of a digital bus networ. At least some of the bridges are associated with an is... | 09/11/2007 |
| 7249178 | Non-intrusive recursive dispatching of nested service collections for aggregating web services The present invention is a method and system for non-intrusively dispatching service requests in a service node nested in a service topology. The method can include receiving a service request in the service node and identifying a requested operation and correspondi... | 07/24/2007 |
| 7155535 | Software apparatus for distributing and providing fault-tolerance to path-vector routing protocols An inter-network method for distributing a path-vector routing protocol within a multi-processor router has steps of running an instance of a router-distributed Border Gateway Protocol (rdBGP) on each of a plurality of processors of the multi-processor router, estab... | 12/26/2006 |
| 7155526 | Method and system for transparently and securely interconnecting a WLAN radio access network into a GPRS/GSM core network A method and system are provided for integrating a WLAN radio access network into a GSM/GPRS core network wherein gateways are added that transparently transport services between the two networks. A further aspect of the invention is secure authentication. The syste... | 12/26/2006 |
| 7139826 | Initial copy for remote copy A method of performing an initial copy procedure in a remote copy system, the method including: configuring a network path between a first disk subsystem and a second disk subsystem to increase the speed of data transmission across the network path; configuring the ... | 11/21/2006 |
| 7120725 | Method of communicating a VMEbus signal over IP packet network A method of communicating a VMEbus transfer (235) from an initiator VMEbus domain (202) over an IP packet network (210) to a responder VMEbus domain (204) can include the initiator VMEbus domain creating the VMEbus transfer and reading a ... | 10/10/2006 |
| 7089343 | System for transmitting data between two bus systems An interface for transmitting messages between two bus systems includes a receiver device for receiving a message from the first bus system, a classification device for classifying the message received from the first receiver device according to one of several prede... | 08/08/2006 |
| 7054279 | Method and apparatus for optimizing signal transformation in a frame-based communications network A method of and apparatus for optimizing signal transformation from a twisted pair transmission line to a combination transmitter and receiver for a frame-based communications network, the transmitter having a transmit output pair port for transmitting signals onto ... | 05/30/2006 |
| 7039020 | Near-echo suppression The hybrid circuit can be used to substantially reduce near echo signals. The circuit includes a balanced 2-wire to 4-wire hybrid for interconnecting a two wire receive path and a two wire transmit path to a two wire transmission line. The two wire receive path conn... | 05/02/2006 |
| 7006457 | Modem front-end apparatus and method A method and apparatus for recovering a second transport stream included within a first transport stream and reducing timing anomaly imparted to the second transport stream within the context of a front-end device subject to random access via a data bus, illustrativ... | 02/28/2006 |
| 6990090 | Radio frequency local area network An apparatus and a method for routing data in a radio data communication system having one or more host computers, one or more intermediate base stations, and one or more RF terminals organizes the intermediate base stations into an optimal spanning-tree network to ... | 01/24/2006 |
| 6967950 | Pull transfers and transfer receipt confirmation in a datapipe routing bridge In a network of digital signal processor nodes connected in a peer-to-peer relationship, a data packet sent to a node causes a return transmission from that node. The requester digital signal processor sends a data packet to a target digital signal processor. Upon a... | 11/22/2005 |
| 6917682 | Method and device for echo cancelling Echo cancelling in a communication line system, particularly an ISDN or XDSL system, is performed with a tunable hybrid having tunable passive elements. The tunable hybrid is integrated in the analog front-end portion of the communication line system. The values of ... | 07/12/2005 |
| 6826409 | Method and apparatus for implementing measurement based dynamic frequency hopping in wireless communication systems Proposed is a method for reducing interference in a frequency hopping wireless communications system. In one embodiment of the present invention, a base station and a terminal station each using an orthogonal frequency division multiplexing (OFDM) technique to simul... | 11/30/2004 |
| 6765931 | Gateway with voice In one aspect of the present invention, a network gateway is configured to facilitate on line and off line bi-directional communication between a number of near end data and telephony devices with far end data termination devices via a hybrid fiber coaxial network a... | 07/20/2004 |
| 6751684 | System and method of allocating bandwidth to a plurality of devices interconnected by a plurality of point-to-point communication links A method is provided for fairly allocating bandwidth to a plurality of devices connected to a communication link implemented as a plurality of point-to-point links. The point-to-point links interconnect the devices in a daisy chain fashion. Each device is configured... | 06/15/2004 |
| 6711407 | Array of processors architecture for a space-based network router A space-based network router architecture (20) is disclosed. The router includes an array-of-processors architecture (20) for routing uplink and downlink traffic of a communications system (10). The architecture comprises multiple node interface... | 03/23/2004 |
| 6654355 | Bridge for CAN to TCP/IP connection A method and corresponding apparatus for communicating a controller area network (CAN) message between a sending node, attached to a sending CAN network, and a receiving node, where the sending and receiving nodes are interconnected by a network communica... | 11/25/2003 |
| 6636887 | Tele-jam system and method for real-time musical interaction The invention provides tele-jam a system and methods for establishing ensembles or groups of participants by a variety of original organizational methods such that the participants interact in real-time (quasi-real-time) in a desired format (strictly pred... | 10/21/2003 |
| 6556576 | Local area network with a bridge terminal for transmitting data between a plurality of sub-networks A bridge terminal of a local area network is provided for transmitting data between the terminals of at least two sub-networks via a wireless medium. The bridge terminal is alternately connected to the sub-networks for exchanging data. For buffering recei... | 04/29/2003 |
| 6553005 | Method and apparatus for load apportionment among physical interfaces in data routers A method for routing a packet received in a packet router is taught, the method comprising the steps of selecting a logical interface having multiple physical ports as a destination for the packet, processing any one or more addresses or labels of the pac... | 04/22/2003 |
| 6507580 | Method of controlling a calling in distributed node exchange network, distributed node exchange and distributed node exchange network The present invention provides a method of controlling a call between nodes in a distributed node exchange network having interconnections of plural exchanges, wherein a distributed node has a channel switch, a subscriber circuit, a trunk circuit accommod... | 01/14/2003 |
