Patents Assigned to Lucent Technologies Inc. ("Lucent')
  • Patent number: 7443804
    Abstract: By approximating a packet network, such as the Internet, by an M/M/1 queuing model, the available bandwidth of the network can determined from the variance of the distribution of the sojourn times of packets transmitted through the network. In order to determine the variance of the distribution of sojourn times, and thus the bandwidth of the packet network that is available for transport of packets from an input to an output, a probe train of N packets with known inter-packet intervals is injected from an input on a sending side of the network. At the receiving side of the network, the packet arrival times are measured and the inter-packet intervals of each pair of received packets in the received train are calculated and compared with the known inter-packet interval times of the corresponding input packets.
    Type: Grant
    Filed: November 29, 2004
    Date of Patent: October 28, 2008
    Assignee: Lucent Technologies Inc.
    Inventors: Benjamin Cheung, Nidal N Khrais, Gopal N Kumar, Anthony Edward Putman
  • Patent number: 7444131
    Abstract: A system and method is provided for surveilling call terminations to a roaming mobile in a wireless telecommunications network in which Location Request Queries (LRQs) for the target mobile can be sent from any MSC in the network. The system and method include forcing the path of the target mobile's call terminations through a predetermined Target Intercept Access Point (TIAP) for surveillance while meeting CALEA constraints including the requirement that information about surveillance may not be shared over public interfaces.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: October 28, 2008
    Assignee: Lucent Technologies Inc.
    Inventors: Ruth Schaefer Gayde, Douglas Harvey Riley
  • Patent number: 7440760
    Abstract: Techniques and systems for allocating bandwidth in a communication channel to devices using the communication channel are described. A communication system includes a central device and one or more remote devices. The central device may transmit information to and receive information from each of the remote devices and each of the remote devices may transmit information to and receive information from the base station. The central device receives information relating to the quality of the communication channel experienced by remote device and adjusts the bandwidth allocated to each remote device based on the communication channel quality experienced by that device. The total frequency range encompassed by the communication channel may also increase or decrease as the average quality of the communication channel for all remote devices increases or decreases.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: October 21, 2008
    Assignee: Lucent Technologies Inc.
    Inventor: Reinaldo A. Valenzuela
  • Patent number: 7440459
    Abstract: In a method of detecting whether a given node supports a given protocol version, a source node sends a request message to the destination mode based on a first protocol version. The source node receives an indication message in reply to the request, and may detect that the destination node does not support the first protocol version based on the indication message. Accordingly communications may be established between a user of the wireless network and an external network via the source and destination nodes.
    Type: Grant
    Filed: February 2, 2004
    Date of Patent: October 21, 2008
    Assignee: Lucent Technologies Inc.
    Inventor: Alessio Casati
  • Patent number: 7440170
    Abstract: Optical signal-to-noise ratio (OSNR) monitoring methods and apparatus are described. A tunable optical filter filters an optical channel containing an optical signal and noise. The total signal and noise power at the output of the filter is measured as the transmittance passband of the filter is varied and the maximum and minimum powers are determined. The ratio between the maximum and minimum powers is then used to determine the OSNR of the optical channel, which, for example, can be a wavelength channel in a wavelength division multiplexing (WDM) system. The ratio of the maximum signal power to the minimum signal power and the ratio of the maximum noise power to the minimum noise power are pre-determined based on the signal modulation format type and filter passband characteristics.
    Type: Grant
    Filed: June 23, 2006
    Date of Patent: October 21, 2008
    Assignee: Lucent Technologies Inc.
    Inventors: Yuan-Hua Kao, Xiang Liu
  • Patent number: 7440158
    Abstract: An apparatus includes a reconfigurable spatial light modulator, a light source, and a transmission filter. The reconfigurable spatial light modulator is capable of producing spatially varying amplitude and/or phase modulations of an incident light wavefront. The light source is configured to direct an illumination light beam towards the reconfigurable spatial light modulator such that the modulator produces a modulated outgoing light beam there from. The transmission filter is configured to spatially filter a light pattern formed by the outgoing light beam and to selectively transmit light from substantially only one diffractive order of the light pattern.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: October 21, 2008
    Assignee: Lucent Technologies Inc.
    Inventors: Randy Clinton Giles, Omar Daniel Lopez, Roland Ryf
  • Patent number: 7440404
    Abstract: A load-balanced network architecture is disclosed in which a traffic flow at a given network node is split into a plurality of parts, and the parts are distributed to respective ones of the plurality of nodes that are designated as participating in a load balancing process for the traffic flow. Each of at least a subset of the participating nodes receiving one of the parts routes at least a portion of its received part to one or more destination nodes.
    Type: Grant
    Filed: February 24, 2004
    Date of Patent: October 21, 2008
    Assignee: Lucent Technologies Inc.
    Inventors: Harsha S. Nagesh, Viswanath Poosala, Dimitrios Stiliadis, Peter J. Winzer, Martin Zirngibl
  • Patent number: 7439096
    Abstract: An encapsulated semiconductor device and method wherein an encapsulant material is deposited on the device in an environment that enhances device performance. Illustrative encapsulant materials are organic polymers, silicon polymers and metal/polymer-layered encapsulants. Encapsulant formation environments may include inert, reducing and ammonia gas environment. Further disclosed are an encapsulated transistor and a semiconductor device.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: October 21, 2008
    Assignee: Lucent Technologies Inc.
    Inventors: Kirk W. Baldwin, Zhenan Bao, Peter Mach, John A. Rogers
  • Patent number: 7437161
    Abstract: In the method of packet transmission, data packet fragments received from a first mobile station are sent to a second mobile station without assembling and re-fragmenting the received data packet fragments if the first and second mobile stations are in a same cell.
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: October 14, 2008
    Assignee: Lucent Technologies Inc.
    Inventors: Mark Haner, Danielle Hinton, Thierry Etienne Klein
  • Patent number: 7436766
    Abstract: An apparatus in one example may have a functionality of a policy decision function divided into two parts; one part representing a home network application function and the other part representing visited network bearer resources and local policies. The one part of the policy decision function supports communications with the application function, and represents the home network and application in a request for QoS control to the visited network. The other part of the policy decision function supports visited network interactions with a policy enforcement function, and represents visited network local policy related to resource utilization and roaming agreement-based policy.
    Type: Grant
    Filed: April 4, 2005
    Date of Patent: October 14, 2008
    Assignee: Lucent Technologies Inc.
    Inventors: Frank M. Alfano, Peter J. McCann, Thomas T. Towle
  • Patent number: 7436769
    Abstract: In the method of throttling data flow through a router, a load parameter, which represents allowable load on the router, is determined and a state of overload control determined based on the load parameter. Overload control mechanisms associated with the determined state are then implemented. One of the overload control mechanisms throttles data that will flow through a router based on a priority class of the data.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: October 14, 2008
    Assignee: Lucent Technologies Inc.
    Inventors: Catherine Rachael Loader, Subhabrata Bapi Sen
  • Patent number: 7436851
    Abstract: A Destination Call Router network element is provided for Internet Protocol dial-up congestion relief, providing Public Switched Telephone Network off-load. The network element, a combination of an Asynchronous Transfer Mode switch and a Broadband Interworking Call Router with application software, is interposed as a node within the conventionally arranged PSTN. Call data is interworked to destination locations based upon call types associated with called directory numbers. Signaling messages for voice-type calls are forwarded over the standard telephony signaling network to destination End. Offices. Signaling for Internet Protocol calls is routed to a Remote Access Server via a Primary Rate Interface after translation to an applicable ISDN protocol, thereby bypassing destination End Offices for IP calls. For both call types, the network element controls its constituent ATM switch to direct ensuing call communications to the appropriate destination.
    Type: Grant
    Filed: March 29, 1999
    Date of Patent: October 14, 2008
    Assignee: Lucent Technologies Inc.
    Inventor: Mahdi S. Chambers
  • Patent number: 7437657
    Abstract: A method and apparatus for performing add-compare-select processing using carry-save arithmetic. Data compressors that operate based upon carry-save principles are utilized to render the correct result without requiring intermediate results to be resolved. Intermediate results are truncated to ensure that the dynamic range of the add-compare-select unit is not exceeded, whilst ensuring that the resolution of the intermediate results is not adversely affected. The computation of two competing paths is delayed and only the difference is computed directly, resulting in a reduction of the propagation path through the add-compare-select unit.
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: October 14, 2008
    Assignee: Lucent Technologies Inc.
    Inventor: David Garrett
  • Patent number: 7437165
    Abstract: A method of wireless communication. The method includes the step of broadcasting a message, such as channel list message, for example. The broadcasting message lists each available carrier for each available frequency band in the wireless communication spectrum—e.g., 400 MHz and about 2100 MHz. Each available carrier listed within the message may correspond with at least one cell of a coverage area. Moreover, each broadcast message comprises at least one occurrence for each available carrier. Each available carrier may also be repeated within the message a number of times corresponding to a carrier weighting. This carrier weighting in turn corresponds with a traffic load. Alternatively, the method may also include the step of repeating the broadcast of the message a number of times, wherein the number corresponds to a carrier weighting associated with the traffic load. The broadcast message may also comprise a listing of at least one service, such as voice and/or data, supported by each available carrier.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: October 14, 2008
    Assignee: Lucent Technologies Inc.
    Inventors: John K Burgess, Carol M. Picot, David Albert Rossetti, Lily H Zhu
  • Patent number: 7436835
    Abstract: A method of intercepting call content in a packet-based Internet Protocol (IP) network. The method includes targeting bearer packets containing the call content via a Softswitch controlling the redirection of the targeted bearer packets through a specified Intercept Router using alias IP addresses for the targeted bearer packets.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: October 14, 2008
    Assignee: Lucent Technologies Inc.
    Inventors: Michael Ray Castleberry, Daniel Weiler Eustace
  • Patent number: 7436808
    Abstract: A transmitting unit for use in sending data in packets in timeslots within time frames, each packet being sent in a timeslot, the unit comprising means to reserve for uplink transmission in the next uplink time frame a number of timeslots (X), the number of timeslots (X) being determined dependent upon a value which is the number of timeslots (Y) used for uplink transmission in the previous uplink time frame plus the number of packets (Z) remaining for uplink transmission during the last time frame minus the number of time slots (Q) to be used in the present uplink time frame.
    Type: Grant
    Filed: December 6, 2002
    Date of Patent: October 14, 2008
    Assignee: Lucent Technologies Inc.
    Inventors: Erez Geva, Oded Shaashua, Gonen Ziv-Av
  • Patent number: 7437075
    Abstract: An integrated reconfigurable planar lightwave add-drop (RPLAD) multiplexer for use in a WDM optical communication system is arranged such that each drop port can receive any wavelength channel and each add port can transmit on any wavelength channel. Drop port reconfigurability is achieved by integrating a cross-connect functionality into the RPLAD, illustratively using optical 1×2 switches to perform “space” switching. The switches are controlled from a remotely located node controller. Add port reconfigurability is achieved by having tunable lasers and a wavelength independent optical power combiner, which may be a star coupler that is integrated with the other above-mentioned elements.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: October 14, 2008
    Assignee: Lucent Technologies Inc.
    Inventors: Christopher Richard Doerr, David S Levy, Timothy O. Murphy, Alice Elizabeth White
  • Patent number: 7436310
    Abstract: An RF antenna grid design in which the antenna array is installed on a patch panel cover allows for the retrofitting of an RF antenna grid on existing patch panel based systems without disrupting network operation. An apparatus for determining connectivity between device ports on a patch panel and cable ends having corresponding RFID tags attached thereto comprises a patch panel having a plurality of device ports and a patch panel cover comprising a plurality of RFID antennas, where each of the RFID antennas comprises one or more protruding portions thereof, each of the protruding portions of the RFID antennas being in close physical proximity to one or more of the plurality of device ports when the patch panel cover is positioned in a fixed positional relationship to the patch panel (e.g., when the patch panel cover is “attached” to the patch panel).
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: October 14, 2008
    Assignee: Lucent Technologies Inc.
    Inventors: Michael E Flaster, Clifford E Martin, Wee Teck Ng, Cuong Tran
  • Patent number: 7435391
    Abstract: A chemical reactor includes two substrates that are joined along a surface and a chemical reaction chamber formed between the substrates. The chemical reaction chamber has a hollow interior and one or more light reflectors located along walls of the hollow interior. The chemical reaction chamber has one or more inputs to transport fluid into the hollow interior and an output to transport fluid out of the hollow interior. The one or more light reflectors cause light rays to make multiple crossings of the hollow interior as a result of reflections off the one or more reflectors.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: October 14, 2008
    Assignee: Lucent Technologies Inc.
    Inventors: Chien-Shing Pai, Stanley Pau
  • Patent number: 7435961
    Abstract: A sensor that is responsive to at least two distinct spectral bands, e.g., infrared radiation and ultraviolet or infrared and visible light makes use of the junction of a diode-based bolometer as a photocell in addition to its temperature dependence for detecting infrared radiation. More specifically the diode bolometer is arranged to work in the conventional manner, in that an electrical characteristic of the diode, e.g., the temperature dependence of its current-voltage (I-V) curve, is used as the basis for measuring temperature, and hence, infrared radiation. Additionally, the same diode may be operated as a photocell to detect radiation that is capable of interacting with the electrons in the junction of the diode. This may be achieved by detecting a change in the operating point of the diode based given its present biasing in response to noninfrared radiation incident upon the diode.
    Type: Grant
    Filed: March 17, 2006
    Date of Patent: October 14, 2008
    Assignee: Lucent Technologies Inc.
    Inventors: Robert Albert Boie, Cristian A Bolle