| Patent Number |
Title Of Patent |
Date Issued |
| 7409226 |
Use of doppler direction finding to improve signal link performance in a wireless communication |
August 5, 2008 |
| A rotating antenna is used in a wireless system to impart a phase onto a received signal by electronically moving the effective receiving antenna location along a circular path such that the modulation phase angle indicates the bearing of the radio transmission and the gain of a signal |
| 7409163 |
Method and apparatus for optical signal transmission |
August 5, 2008 |
| A method and apparatus for transmission of optical signals across an optical transmission link wherein duobinary signals or inverse-data signals are transmitted when the chromatic dispersion of the transmission link is above or below a dispersion threshold, respectively, to significa |
| 7409154 |
System and method for a protected optical access ring network |
August 5, 2008 |
| An optical access network employs a ring topology in which connections between the network units and between the network units and the optical line terminal are via a protection switch. The protection switch monitors connections from the optical network units to detect a loss of signal |
| 7409128 |
Pumping arrangement for fiber amplifiers with reduced reflective feedback |
August 5, 2008 |
| An improved tapered fiber bundle (TFB), or assembly including a TFB, mitigates undesirable reflections from optical discontinuities at the input ends of the multimode fibers of the TFB by suppressing the coupling of signal light into modes that can produce undesired reflections. Means |
| 7409121 |
Integrateable optical interleaver and de-interleaver |
August 5, 2008 |
| A proposed integrateable optical interleaver includes an input Y-branch coupler and at least two multi-section optical couplers. The multi-section optical couplers of the interleaver include at least three substantially similar optical couplers, adjacent ones of the optical couplers |
| 7409007 |
Method and apparatus for reducing adjacent channel power in wireless communication systems |
August 5, 2008 |
| This invention relates to a method and apparatus for reducing adjacent channel power in wireless communication systems. More particularly, the present invention is directed to a system for digitally and adaptively pre-distorting a signal that includes applying a correction to the signal |
| 7408946 |
Systems and methods for smooth and efficient round-robin scheduling |
August 5, 2008 |
| The present invention provides improved work schedulers for computer systems and communication processors. A preferred embodiment of the present invention includes systems with buffer memory for storing one or more communication packets or work requests arranged on a plurality of sch |
| 7408913 |
Method of real time hybrid ARQ |
August 5, 2008 |
| A method of wireless communication. The method includes the step of transmitting at least a first sub-frame from a first voice frame. If the first sub-frame is received by the wireless unit, an acknowledgement message is transmitted, and the remaining sub-frames from that voice frame |
| 7408881 |
Differential delay constrained routing for virtually-concatenated data traffic |
August 5, 2008 |
| Virtually-concatenated data traffic is routed in a network comprising a plurality of nodes. For a given traffic demand to be routed from a source node to a destination node in the network, an initial candidate path set satisfying a differential delay constraint is determined by arranging |
| 7406678 |
Manager component resource addition and/or resource removal on behalf of distributed software ap |
July 29, 2008 |
| A distributed software application comprises a plurality of software components within a plurality of executables. A manager component for the distributed software application handles: an addition of one or more first resources to the distributed software application on behalf of the |
| 7406518 |
Method and system for connecting virtual circuits across an ethernet switch |
July 29, 2008 |
| Transferring data segments and virtual circuit (VC) information related to the data segments across an Ethernet switch from a first connection terminating at an input port of the switch to a second connection originating at an output port of the switch involves utilizing the VC infor |
| 7406335 |
Multiple antenna transmissions with deterministic phase differences |
July 29, 2008 |
| A wireless data communication system simultaneously transmits data signals from more than one antenna with a deterministic, time-dependent phase difference between the signals. In one example, more than one antenna transmits the same data signal with a phase difference between the tr |
| 7406300 |
Extending wireless communication RF coverage inside building |
July 29, 2008 |
| A wireless communication system includes at least one repeater antenna assembly for providing adequate RF coverage within a building, such as a home. An example repeater antenna assembly has an automatically adjustable gain that is controlled responsive to a pathloss associated with |
| 7406082 |
Sequence number schemes for acceptance/rejection of duplicated packets in a packet-based data ne |
July 29, 2008 |
| In a packet-based data network, packets are duplicated and a sequence number is inserted into each duplicate packet, where the duplicate packets are transmitted along two different paths from a source node to a destination node in the network. Depending on the implementation, the sou |
| 7406074 |
Bundling messages in communication networks |
July 29, 2008 |
| Multiple requests to set up and/or tear down connections in a node of a communication network (or multiple failure notifications) are bundled together for transmission within the network. In an "inter-nodal" embodiment, multiple connection requests/failure notifications are bundled t |
| 7404210 |
Method and apparatus for defending against distributed denial of service attacks on TCP servers |
July 22, 2008 |
| A Distributed Denial-of-Service (DDoS) attack by a TCP stateless hog is defeated with use of an enhancement to the keep-alive mechanism provided by RFC 1122. A TCP server receives a new TCP connection request from a possible attacker and sends a keep-alive probe packet back thereto using |
| 7404101 |
Optimal configuration method |
July 22, 2008 |
| A method for determining an optimal configuration and redundancy allocation for a system containing a plurality of units grouped into a plurality of elements and one or more modules. The method conducts random statistical sampling of a combinatorial space reflecting the possible comb |
| 7403790 |
Methods for signaling broadcast and multicast information in communication networks |
July 22, 2008 |
| Methods for signaling information to a group of users in a communication network supporting a broadcast-multicast service are described, in which one or more indicator bits of a sequence may be assigned to indicate transmission of signaling information that is related to the group. The |
| 7403772 |
Telecommunications system with reflective airborne platform |
July 22, 2008 |
| A cellular-type wireless communications system, comprising: an airborne platform that reflects wireless communication signals; and a centralized base station associated with at least one cell, each cell corresponding to a geographic area, the centralized base station configured to send |
| 7403745 |
Channel quality predictor and method of estimating a channel condition in a wireless communicati |
July 22, 2008 |
| In one embodiment of the method, a channel quality metric for a first subframe is estimated based at least in part on a channel quality metric for a previous subframe, and a channel quality metric for a second subframe is estimated based at least in part on the channel quality metric |
| 7403718 |
Modulation phase shift to compensate for optical passband shift |
July 22, 2008 |
| Disclosed is a technique for compensating for optical passband shift of an optical component (for example an optical demultiplexer). A broadband source coupled to a dispersive element generates a chirped pulsed optical signal. Data is modulated onto particular wavelengths of the chirped |
| 7403711 |
Optical digital-to-analog converter and method of optically converting digital data to analog fo |
July 22, 2008 |
| An optical digital-to-analog (D/A) converter and a method of optically converting digital data into analog form. In one embodiment, the optical D/A converter includes: (1) a splitter configured to receive and split an input coherent optical carrier into a plurality of mutually coherent |
| 7403682 |
Dispersion compensation apparatus |
July 22, 2008 |
| A dispersion compensation apparatus employing an arrayed-waveguide-grating (AWG) which exhibits a dispersion slope. |
| 7403670 |
Compact optical modulator |
July 22, 2008 |
| A novel design for an optical differential quadrature phase shift keying (DQPSK) modulator comprises two intensity modulators in a three-arm interferometer. |
| 7403528 |
Method of data communication using a control message |
July 22, 2008 |
| A method of data communication. The method includes transmitting a control message identifying missing data as lost by the transmitter prior to the expiration of a timer. The missing data may include at least one data packet such that the control message identifies the at least one missi |
| 7403516 |
Enabling packet switched calls to a wireless telephone user |
July 22, 2008 |
| A packet switched IP call to a mobile user device in a wireless network is supported where the mobile user does not have a static IP address and where the mobile user is not engaged in communications in which an IP address is currently assigned. The originating party utilizes the dir |
| 7403322 |
MEMS-based alignment of optical components |
July 22, 2008 |
| A MEMS device that enables an optical subsystem (e.g., an optical switch) having an optical component optically coupled to the MEMS device via free space to achieve optical alignment between the optical component and the MEMS device without moving the optical component with respect to th |
| 7402913 |
High density nanostructured interconnection |
July 22, 2008 |
| A method and apparatus for forming an electrically and/or thermally conducting interconnection is disclosed wherein a first surface and a second surface are contacted with each other via a plurality of nanostructures disposed on at least one of the surfaces. In one embodiment, a firs |
| 7402779 |
Effusion cell and method for use in molecular beam deposition |
July 22, 2008 |
| An MBE effusion cell is configured to produce an inverted temperature gradient; that is, the top surface of the melt is not cooler than the bottom surface of the melt. In one embodiment, the MBE effusion cell comprises a crucible having tip, central and base regions. First filaments |
| 7400887 |
Method for estimating the downlink capacity in a spread spectrum wireless communications system |
July 15, 2008 |
| The per sector or per cell downlink capacity in a spread spectrum wireless network is determined using a single test mobile that is operating within a background of simulated co-channel interference being broadcast in each sector by all cell sites in the network whose capacity is of inte |
| 7400877 |
Method of supporting multiple service levels in a wireless data network |
July 15, 2008 |
| A wireless data network distinguishes among different users connected to the network and associates each user with a service class that offers a selected level of service. The base station in the network queries the user for its unique user identification code and accesses a database |
| 7400712 |
Network provided information using text-to-speech and speech recognition and text or speech acti |
July 15, 2008 |
| A real-time networked telephony or computer system has a feature complex and/or applications that offer a class of features to a subscriber, including call information, and permits the subscriber to manage incoming and existing calls through available features accessed using spoken u |
| 7400688 |
Path metric normalization |
July 15, 2008 |
| Path metric normalization in calculating trellis-based algorithms is improved by normalizing the path metric with an average value (rather than a maximum or a minimum) of the path metrics. Using an average rather than a maximum or a minimum provides various advantages without adversely |
| 7400630 |
Call admission control with overbooking support and cell loss ratio and cell delay variation gua |
July 15, 2008 |
| Call admission methods for admitting connections into ATM/IP networks having a plurality of communication channels are disclosed. An overbooking technique is utilized which distinguishes among the different service classes. Each service class is assigned an overbooking factor. The ca |
| 7400614 |
Methods and apparatus for downlink diversity in CDMA using Walsh codes |
July 15, 2008 |
| Downlink diversity in a CDMA system is provided by employing Walsh codes in conjunction with M transmit antennas at a common base station serving K mobiles, where M may or may not be to equal to K. The present invention provides methods and apparatus for improving downlink diversity in a |
| 7400611 |
Discovery of border gateway protocol (BGP) multi-protocol label switching (MPLS) virtual private |
July 15, 2008 |
| A method and apparatus for identifying virtual private networks (VPNs) in a network of a service provider. The method and apparatus includes generating a VPN routing forwarding--route target (VRF-RT) table for the network. From the VRF-RT table, at least one of a VRF-VRF table and a VRF |
| 7400600 |
Method of transport provision for a service to a user |
July 15, 2008 |
| A telecommunications system includes a plurality of networks. At least one of the networks is a network for wireless telecommunications. Each network comprises a network controller, and the system also comprises a user controller. The user controller negotiates with the network contr |
| 7399443 |
Carbon particle fiber assembly technique |
July 15, 2008 |
| Carbon particles, such as, carbon fibrils and carbon nanotube molecules, may be assembled into substantially pure aligned fibers by a) dispersing the carbon particles within a curable liquid, b) aligning the carbon particles by flowing the mixture of curable liquid and carbon particles |
| 7398446 |
Low power operation of an address interleaver |
July 8, 2008 |
| A first interleaved address generator is configured to generate a first interleaved address, and a second interleaved address generator is configured to generate a second interleaved address substantially concurrently with the first interleaved address generator generating the first |
| 7398438 |
Method and apparatus for improved routing in connectionless networks |
July 8, 2008 |
| The invention includes a method and apparatus for determining a routing table for use in a network comprising a plurality of type-one nodes and a plurality of type-two nodes where the type-two nodes use respective type-two routing tables having one next-hop node associated with each of |
| 7398312 |
Method and system for caching streaming multimedia on the internet |
July 8, 2008 |
| An apparatus and method to enhance existing caches in a network to better support streaming media storage and distribution. Helper machines are used inside the network to implement several methods which support streaming media including segmentation of streaming media objects into sm |
| 7398294 |
Application server component that notifies one or more communication devices of one or more invi |
July 8, 2008 |
| An application server component of an apparatus in one example receives an indication of one or more communication devices that are to receive one or more invitations to join a communication session. The application server component notifies the one or more communication devices of the |
| 7397815 |
Method and apparatus for performing link defragmentation subject to an interface rate constraint |
July 8, 2008 |
| Techniques for defragmenting at least one time division multiplexed link in a communication system, wherein provisioned circuits corresponding to traffic demands are assigned to particular time slots of the link. An optimum layout of free space for the link is computed, subject to an |
| 7397766 |
High-speed traffic measurement and analysis methodologies and protocols |
July 8, 2008 |
| A network-wide traffic measurement/analysis problem is formulated as a series of set-cardinality-determination (SCD) problems, using probabilistic distinct sample counting techniques to compute network-wide traffic measurements of interest in a distributed manner via the exchange of |
| 7397764 |
Flow control between fiber channel and wide area networks |
July 8, 2008 |
| Multiple fiber channel (FC) storage area networks (SANs) are interconnected over wide-area networks (WANs) to form a long-distance (e.g., greater than about 10 km) distributed storage area network (DSAN) that includes FC to Internet Protocol (IP) over WAN (e.g., SONET or gigabit Ethe |
| 7397761 |
Routing restorable service-level-guaranteed connections using maximum 2-route flows |
July 8, 2008 |
| A packet network employs restorable routing with service level guarantees. Restorable routing generates two disjoint paths through a network of nodes interconnected by links for a connection request demand between and ingress-egress node pair. Restorable routing employs minimum interfere |
| 7397365 |
Vehicle speeding alert system for GPS enabled wireless devices |
July 8, 2008 |
| A vehicle speeding alert system is implemented on a GPS enabled wireless device in communication with a wireless network. The alert system periodically determines the speed of a vehicle by determining the speed of the wireless device carried therein, using GPS signals received by the |
| 7395493 |
Systems and methods for adaptively decoding transmitted frames |
July 1, 2008 |
| The present invention provides systems and methods for adaptively decoding transmitted frames efficiently in non-Gaussian, non-stationary environments. One such system comprises a decoder adapted to decode a received transmission frame using a decoding scheme, a channel assessment un |
| 7395492 |
Method and apparatus for detecting a packet error in a wireless communications system with minim |
July 1, 2008 |
| The need for separate CRC bits is eliminated by taking advantage of what has been determined to be an embedded error detection capability of the tail bits generated by the constituent encoders of a turbo coder to perform error detection following turbo decoding. Specifically, it has |
| 7394822 |
Using reassembly queue sets for packet reassembly |
July 1, 2008 |
| A system for efficiently reassembling packets from cells received on independent switching fabrics according to a serial high speed interface (HSI) protocol. The system includes redundancy in that fabrics may be removed by skipping the fabrics in striping and reassembly sequences. Wh |
