| Patent Number |
Title Of Patent |
Date Issued |
| 6910074 |
System and method for service session management in an IP centric distributed network |
June 21, 2005 |
| Provided are a system and method for service session management in an IP centric network. In one example, the method includes accessing a network to establish a point of presence through an access interface layer at an access management layer and a core portion of the network and designa |
| 6909887 |
Method of controlling a channel between a radio terminal and a cellular radiocommunication infra |
June 21, 2005 |
| The infrastructure has a core network, radio network controllers linked to the core network and base stations provided with radio interfaces and each linked to one of the controllers. Ciphered information is transmitted over a first communication path in circuit mode between the core net |
| 6907560 |
Forward error correction (FEC) on a link between ICs |
June 14, 2005 |
| An apparatus suitable for generating a signal for transmission over a link between two ICs is provided. The apparatus receives an input signal comprising payload data to be transmitted and processes the payload data in the input signal to derive forward error correction data. An output |
| 6907549 |
Error detection in communication systems |
June 14, 2005 |
| A method for determining the impact on a network of a fault in the network, comprises the steps of constructing a layered topological model of the network according to a predetermined protocol, receiving an indication of an erroneous event at a point in the network, and modelling the imp |
| 6907462 |
Network gatekeeper prioritizing method and system |
June 14, 2005 |
| Methods and systems for controlling network gatekeeper message processing include overload control routines executed by a network gatekeeper to prevent the network gatekeeper from crashing during overload conditions. The overload control routines are executed in a predetermined order so |
| 6907271 |
Multibeam wireless communications method and system including an interference avoidance scheme i |
June 14, 2005 |
| A method for reducing interference in a wireless system, and a system for performing the method. The wireless system should include at least two, and preferably four, beam formers and a plurality of mobile units. The method includes the steps of transmitting beams B1, B2, B3 and B4 into |
| 6907228 |
Allocating carrier frequencies for communicating beacon control signaling |
June 14, 2005 |
| A mobile communications network includes a plurality of cells and cell sectors in each cell. Carrier frequencies for carrying beacon control signaling, such as a broadcast control channel (BCCH), are assigned from the entire band of available carrier frequencies. The same carrier fre |
| 6907197 |
Method and apparatus for measuring and estimating optical signal to noise ratio in photonic netw |
June 14, 2005 |
| A WDM optical network comprising a plurality of nodes has a first apparatus for optical analysis at the site of a first optical amplifier upstream of the first node, a second apparatus for optical analysis at the site of a second optical amplifier at the downstream output of the first no |
| 6907045 |
Method and apparatus for data-path conversion comprising PCM bit robbing signalling |
June 14, 2005 |
| A method and apparatus for triggering data-path conversion utilizing PCM bit robbing signalling. The method and apparatus permits the pass-through of compressed voice packets over a PCM stream between dissimilar interconnected networks or dissimilar payload specifications in the inte |
| 6907020 |
Frame structures supporting voice or streaming communications with high speed data communication |
June 14, 2005 |
| A frame structure that is ordinarily optimized for providing variable high data rates also includes the flexibility to efficiently carry lower data rate, lower latency frames using sub-framing. Superframes, each comprised of a predetermined number of frames, carry voice and data communic |
| 6907018 |
Method and system for initial power management for data bursts in CDMA systems |
June 14, 2005 |
| A method for optimizing power management in the transmittal of a variable rate data transfer between two wireless stations, such as a Base Station Transceiver and a Mobile Station. This is achieved by determining the initial power and the initial signal-to-noise values based on the r |
| 6907008 |
Method for a network device inserted between point to point connected stations to automatically |
June 14, 2005 |
| A network probe inserted between two nodes in point-to-point link synchronizes modes of operation between the two nodes. The probe utilizes IEEE 802.3u Clause 28 Auto-Negotiation to detect and advertise corresponding information regarding modes of operation for the nodes between whic |
| 6907003 |
Method of monitoring packet communications traffic |
June 14, 2005 |
| A flow of packet or cell-based communications traffic is monitored by: setting a first time interval over which measurements are to be made; counting number of packets flowing during that time interval and using the count to derive parameters which are indicative of the traffic meeting a |
| 6907002 |
Burst switching in a high capacity network |
June 14, 2005 |
| At a master controller of a space switch in a node in a data network, a request is received from a source node that requests a connection to be established through the space switch. This request is compared to other such requests so that a schedule may be established for access to the |
| 6906998 |
Switching device interfaces |
June 14, 2005 |
| A device is switched from a first physical interface on the device to a second physical interface on the device based on information in an interface redundancy group. The information in the interface redundancy group identifies the first physical interface as a primary interface for |
| 6903683 |
Method for delivering assistance data in an unsynchronized wireless network |
June 7, 2005 |
| A method for assisting a mobile terminal in an unsynchronized wireless communications network to determine its location using a global positioning system (GPS) by providing a GPS receiver of the mobile terminal with reference time data is disclosed. The method includes, obtaining a f |
| 6901053 |
Connectionless network express route |
May 31, 2005 |
| A priority routing service is provided for a predetermined network user in a connectionless network such as an IP network. The network comprises a plurality of network elements and links therebetween and the express route comprises one or more links between two elements. Elements at each |
| 6898784 |
Method and system for forming skeletons for generating verification systems |
May 24, 2005 |
| A verification system for a procedure interface is generated by using formal specifications of the procedure interface and generating test suites. The test suites are generated from the formal specifications and templates or skeletons which are used to generate an element of a verifi |
| 6898274 |
Method and apparatus for adaptive time-based call routing in a communications system |
May 24, 2005 |
| A method and apparatus in a communications system for routing a call. A call to a subscriber is received. Call routing information is identified for the subscriber. Responsive to identifying call routing information for the subscriber. A determination is then made as to whether a functio |
| 6898200 |
Method for improving signaling efficiency and performing service load balancing in a connection |
May 24, 2005 |
| A method for improving signaling efficiency and load balancing in a non-broadcast, multiple access network environment. The standard next hop resolution protocol (NHRP) essentially is extended to provide peer to peer, i.e., source station to destination station, communication regarding |
| 6898192 |
Method and apparatus for improving fast forward link power control during variable rate operatio |
May 24, 2005 |
| The method and apparatus of the present invention includes reducing the power level by a delta value in excess of the reduction in the bit error rate and its proportionate power reduction rate in response to a data rate change. If the bit rate is reduced to eighth, then the power transmi |
| 6898177 |
ATM protection switching method and apparatus |
May 24, 2005 |
| A method of detecting signal degrade in an ATM network, and a network element using such method are disclosed. Signal degrade at the ATM layer of the network is detected by monitoring signal degrade at the physical layer of the network. In response, ATM cells indicative of the signal |
| 6895511 |
Method and apparatus providing for internet protocol address authentication |
May 17, 2005 |
| A method and apparatus for storage of user identifier/IP address pairs in a network. The network includes a DHCP server for assigning IP addresses to computer and other devices in the network, a device (such as a computer) coupled to receive an IP address from the DHCP server, an authent |
| 6895023 |
Packet-based optical communications networks |
May 17, 2005 |
| A structure for an optical packet for transmission over an optical network comprises a packet header (30) and a packet payload (32). The header comprises first and second sections (34, 36). The first section (34) comprises a series of clock pulses (40) at the data rate of the second |
| 6894977 |
Inverse multiplexing of digital data |
May 17, 2005 |
| In ATM networks, digital data in ATM cells are sent to a destination node over more than one transmission link in round robin fashion. This is called inverse multiplexing. At connection start-up, the source node informs the destination node of the specific round robin fashion of the |
| 6894974 |
Method, apparatus, media, and signals for controlling packet transmission rate from a packet sou |
May 17, 2005 |
| A method, apparatus, computer readable media and signal embodied in a carrier wave for controlling the rate at which data packets are transmitted from a source responsive to acknowledgement signals in a packet network involves adjusting an acknowledgement rate at which acknowledgemen |
| 6894905 |
Communication device plane having a high-speed bus |
May 17, 2005 |
| An "H layout" according to the present invention affords for a smaller, simpler, less expensive and higher performance midplane for use in a communication system for connecting various modules together. The layout is based on the concept of symmetry around a mid-section, which allows for |
| 6894832 |
Technique for adaptively controlling gain in an optical amplifier |
May 17, 2005 |
| A technique for adaptively controlling a gain of an optical amplifier is disclosed. In one particular exemplary embodiment, the technique may be realized by a method comprising the steps of measuring an output power signal of the optical amplifier; computing a command signal from an inpu |
| 6894829 |
Optical amplifier modules |
May 17, 2005 |
| A variable gain optical amplifier, in which homogeneous gain broadening is dominant, has first and second fixed gain rare-earth doped optical waveguide amplifiers (21, 23) optically in series together with an intervening variable attenuation optical attenuator (22). This arrangement |
| 6894559 |
Modulated power supply |
May 17, 2005 |
| A modulated power supply comprises a converter having a primary power switching device and a secondary power switching device. The outputs of the primary and secondary power switching devices are combined to provide an output. A controller controls operation of the switching devices in |
| 6894169 |
Zwitterionic chromophores and polymers containing such chromophores |
May 17, 2005 |
| A non-linear chromophore is obtained by reacting a picolinium halide having a desired functional group (preferably --OH) with a lithium TCNQ adduct. If desired, the chromophore can be graft polymerized onto a polymer which has complementary functional groups (preferably carboxyl groups). |
| 6892362 |
Hybrid state machine |
May 10, 2005 |
| One aspect of the invention provides an apparatus for implementing a state machine. The apparatus comprises a software component and a hardware component each arranged to implement at least one state and to be responsive to at least one input event to perform one or more functions. T |
| 6892233 |
Optical communication network and method of remotely managing multiplexers |
May 10, 2005 |
| To provide a graphic user interface, supported by HTML or Java script, to a personal computer (102) for the control of SONET/SDH network elements (106), an RS-232 port of a PC is used to establish a PPP session to a remote access server, RAS (122). The network element (106) is therefore |
| 6891897 |
Space-time coding and channel estimation scheme, arrangement and method |
May 10, 2005 |
| The evolution of high rate data services within future wireless networks will call for new RF access technologies to enable substantial increases in overall system spectral efficiency at an acceptably low cost to the user. Space-Time Coding (STC) is an antenna array processing technology |
| 6891862 |
Multiplex hierarchy for high capacity transport systems |
May 10, 2005 |
| The SONET/SDH multiplexing hierarchy is extended to very high rates by creating new virtual containers of a higher capacity, and their associate pointers. The multiplexing hierarchy nests the pointers into the payload, so that the number of pointers on the high capacity line is important |
| 6891835 |
Servicing output queues dynamically according to bandwidth allocation in a frame environment |
May 10, 2005 |
| An adaptive weighted round robin scheduling apparatus and method schedules variable-length frame transmissions from a plurality of output queues having different transmission priorities by first allocating, for each queue, a number of bandwidth segments for a bandwidth cycle and a number |
| 6891833 |
Elimination of premature blocking in communications networks |
May 10, 2005 |
| In a communications network, a virtual channel connection is established between first and second nodes in a communications network using a negotiating procedure to determine a mutually acceptable path identifier. The first node sends a connection request to the second node incorporating |
| 6889187 |
Method and apparatus for improved voice activity detection in a packet voice network |
May 3, 2005 |
| A method and apparatus for detecting and transmitting voice signals in a packet voice network system. The method and apparatus make use of a voice activity detection (VAD) unit at a transmitter, for determining if an input signal contains active audio information or passive audio inf |
| 6889007 |
Wavelength access server (WAS) architecture |
May 3, 2005 |
| A wavelength access server (WAS) architecture provides aggregation of traffic streams of diverse data communication protocols as well as provision of wavelength resources in an optical transport network. The WAS provides functions such as service traffic adaptation, traffic aggregation |
| 6888936 |
User controlled location sharing during a communication |
May 3, 2005 |
| During a telephone call, a party to the call may signal (by, for example, sending certain DTMF tones (a wish to provide his or her location to the other party to the call. The central office responds to this request by accessing a subscriber record for the communication line (e.g., subsc |
| 6888927 |
Graphical message notification |
May 3, 2005 |
| The invention provides a method, apparatus and system for providing an addressee of a stored message with a graphical notification associated with a source of the stored message. In general terms, a communications device of the addressee is presented with the graphical notification in |
| 6888842 |
Scheduling and reservation for dynamic resource control systems |
May 3, 2005 |
| A packet scheduling scheme schedules packets from a plurality of queues onto outgoing link. The scheme associates a weight and a virtual start time with each of the queues. Queues are selected, in order of the virtual start time, until a non-empty queue is selected. One or more packets a |
| 6888839 |
Method and apparatus for tunneling operating codes to and from a call server in a packet network |
May 3, 2005 |
| Method and apparatus for tunneling operating codes to and from a call server in a packet network. A signaling package for the Megaco/H.248 protocol is provided which encapsulates or "tunnels" control and signaling codes for an endpoint device so that the codes can be communicated between |
| 6888803 |
System, method, and computer program product for connectivity of wireless base station to PSTN v |
May 3, 2005 |
| A system for providing wireline telephone services to wireless subscribers utilizing a packet data network 100. The system includes a base station controller (BSC) 210 a base station controller gateway (BGW) 200 for providing client based services to mobile subscribers and providing |
| 6888802 |
System, device, and method for address reporting in a distributed communication environment |
May 3, 2005 |
| An address reporting technique for reporting address information in a distributed communication environment retrieves locally owned address information from each of a number of distributed address databases, sorts the address information according to a predetermined sorting scheme, and |
| 6888069 |
Equipment tray for simplified insertion and removal of rack-mounted equipment |
May 3, 2005 |
| An equipment tray for simplified insertion and removal of electronic equipment to a rack is described. The electronics equipment can be horizontally or vertically mounted. The tray has a first region in which electronics equipment is releasably secured and a second region that provid |
| 6886161 |
Method and data structure for compressing file-reference information |
April 26, 2005 |
| Compression of local data uses various methods to encode location data (e.g. line numbers and, optionally, column numbers) representing references to a source code information symbol in a source code file. Run length encoding and other run encoding methods are used. A preferred run e |
| 6886043 |
Communications network |
April 26, 2005 |
| In a label switch communications network, a third level of label is employed in conjunction with a dynamic multiplex constraint-based routed label switched path (CR-LSP) in order to achieve implicit switching at nodes within the network. Implicit switching occurs when a switching fun |
| 6885868 |
Fair packet scheduler and scheduling method for packet data radio |
April 26, 2005 |
| A method of selecting which one of a number of wireless station is to be allocated a particular transmit opportunity is provided, for example the opportunity to transmit an air interface unit such as a MAC frame. For each wireless station, a transaction length is maintained indicating ho |
| 6885696 |
Notifying bit allocation changes in a multicarrier modulation communications system |
April 26, 2005 |
| In a multicarrier modulation communications system, a change of a bit allocation table for the multiple subchannels or tones is notified from a transmitter to a receiver by a change in the inversion state of synchronization symbols provided in superframes of transmitted multicarrier |
