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Lucent Technologies Inc. Patents
Assignee:
Lucent Technologies Inc.
Address:
Murray Hill, NJ
No. of patents:
9257
Patents:


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Patent Number Title Of Patent Date Issued
7338835 OFETs with active channels formed of densified layers March 4, 2008
The present invention provides apparatus and a method of fabricating the apparatus. The apparatus includes a substrate having a surface and an organic field-effect transistor (OFET) located adjacent the surface of the substrate. The OFET comprising a gate, a channel, a source electrode,
7336988 Multi-photon endoscopy February 26, 2008
An apparatus includes an optical element, a GRIN lens, and a detector. The optical element has a first optical aperture. The GRIN lens has first and second ends. The first end of the GRIN lens is positioned to receive light from the first optical aperture. The detector is configured to
7336944 Method and apparatus for legal intercept monitoring of a cellular telephone modem (CTM) device February 26, 2008
A method and apparatus for legal intercept monitoring of a cellular telephone modem (CTM) device. More particularly, a system incorporating a CTM-to-TTY/TDD converter and a Call Content Delivery Unit (CCDU) to facilitate the monitoring of calls made to or from a CTM device is impleme
7336899 Method for determining the dispersion characteristics of minimum phase filters February 26, 2008
A method and apparatus for determining the dispersion characteristics of minimum phase filters using substantially only an amplitude response of a minimum phase filter under test includes fitting an amplitude spectrum of the minimum phase filter with a substantially straight line curve,
7336856 Optimum delay length for a PMD compensator February 26, 2008
A method for selecting an optimum delay length in a polarization mode dispersion (PMD) compensator configured with a constant-length delay line and deployed in an optical communication system. The optimum delay length depends on the data modulation format, bit rate, and/or signal bandwid
7336776 Method of establishing a multi-user call in a communication system February 26, 2008
The present invention provides a method for establishing a multi-user call in a communication system. The communication system receives a call request to establish a group call with a shared group of users. The communication system determines which of the plurality of individual user
7336728 Method and apparatus for monitoring phase-shift keyed optical signals February 26, 2008
A method and apparatus for monitoring PSK optical signals by measuring the RF spectrum of the signal and determining the power spectral density of noise on the optical signal within a predetermined frequency range to determine a measure of the degradation of the optical signal.
7336607 Methods and apparatus for flow control based packet aggregation in a communication network February 26, 2008
The present invention is a methodology for providing packet aggregation based on transmission window size to achieve improved transport efficiency. One embodiment of the invention includes the steps of receiving an indication of a transmission window size for packets to be transmitte
7336062 Optically measuring electric field intensities February 26, 2008
An apparatus includes an optical resonator and a passive optical device. The optical resonator has first and second optical reflectors and an optical cavity interposed between the reflectors. The optical resonator includes an electro-optically responsive material. One of the reflectors
7334249 Method and apparatus for dynamically altering digital video images February 19, 2008
The present invention provides a method and apparatus for dynamically altering a portion of a digital video image based upon a user profile. A source, such as a network feed or video server, sends a digital video image to a broadband network. The broadband network includes a multicast
7333835 Method and apparatus for providing user specific downlink beamforming in a fixed beam network February 19, 2008
The disclosed embodiments relate to a system and method for providing user specific beams in a fixed beam network. In one embodiment, there is provided a mobile transceiver comprising a first device configured to receive phase reference signal data from a base station, the phase refe
7333813 Methods and devices for assigning mobile devices to base stations in the presence of interferenc February 19, 2008
Mobile devices are assigned to their correct base stations after taking into consideration interference from all other mobile devices. The resulting assignments are more efficient than previous assignments. In addition, transmit power levels are assigned after each mobile device is a
7333803 Network support for voice-to-text memo service February 19, 2008
A method for a wireless network to provide a voice-to-text memo service to a wireless subscriber associated with a mobile device is provided. The method includes: a) routing an active call path associated with the mobile device to a voice-to-text conversion system, b) capturing audio
7333691 Low loss tunable ring resonator allpass filter February 19, 2008
An apparatus, including an optical ring resonator having a waveguide ring with substantially straight waveguide segments and bent waveguide segments. The bent waveguide segments are optically coupled to the substantially straight waveguide segments and have optical cores with substan
7333688 Method and apparatus for free-space optical switching February 19, 2008
An apparatus and method are provided for manipulating light beams propagated through PLCs in free space. Light beams propagated in through an input/output waveguide of a PLC are propagated through a waveguide array to generate a phased array output at an edge facet of the PLC. The ph
7333567 Digital detector utilizable in providing closed-loop gain control in a transmitter February 19, 2008
A digital detector processes at least one received digital signal to generate a squared signal, encodes the squared signal, applies first and second portions of the encoded signal to a multiplier and a look-up element, respectively, and processes outputs of the multiplier and look-up
7333553 Tunable duobinary transmitter February 19, 2008
An apparatus and method for tunably delaying a signal and using that delayed signal in a duobinary transmitter is described. The transmitted duobinary signal is representative of the binary signal, and is formed by, among other things, introducing into a copy of the binary signal a d
7333457 High speed dedicated physical control channel for use in wireless data transmissions from mobile February 19, 2008
A wireless data communication system includes a high speed dedicated physical control channel (EU-DPCCH) used with transmissions from a mobile device to support an uplink high speed data channel. In one example the EU-DPCCH has a sub frame structure that is the same as an associated
7332627 Compositions comprising a solvated metal February 19, 2008
A method of solvating metal ions in an aromatic organic liquid. The method includes adding an ammonium salt having an organic acid reagent to the aromatic organic liquid. The organic acid reagent comprises a carboxylate having eight (8) or less carbon atoms. Thereafter, an aqueous soluti
7331009 Method and apparatus for link error prediction in a communication system February 12, 2008
A method is provided to accurately predict the probability of successfully recovering frames of (coded) information received over a wireless link, without having to decode the frame. This method includes receiving a first encoded signal and predicting link errors based on characteristics
7331008 Erasure decoding optimization of acknowledgment/negative acknowledgment information in a wireles February 12, 2008
In the method of erasure decoding of acknowledgement (ACK)/negative acknowledgement (NACK) feedback information, a state of received ACK/NACK feedback information for associated sent data is detected based on at least one threshold derived using an objective function. The objective f
7330717 Rule-based system and method for managing the provisioning of user applications on limited-resou February 12, 2008
A system and a method for charging for directed provisioning and using of dynamic content to limited resource devices, through an integrated platform which handles all aspects of aggregation and management of such dynamic content. The integrated platform features a billing system for
7330699 Method and apparatus for providing multicast services in a wireless communication environment February 12, 2008
Method for multicasting messages to users of a wireless communication system includes the steps of establishing a power ratio threshold for transmitting the messages, measuring respective power ratios of the users, comparing the established power ratio threshold to the measured power
7330693 Broadcast channels for wireless telephony February 12, 2008
A wireless system and method for providing informative broadcast services includes a plurality of base stations, each serving a plurality of wireless communications device users via a plurality of communications channels. An alert message is first transmitted to wireless communicatio
7330669 Optical heterodyne receiver based on oversampling February 12, 2008
An optical receiver adapted to apply multiple-sampling processing to an intermediate frequency (IF) signal generated based on heterodyne detection of an optical communication signal. In one embodiment, the receiver has an optical-to-electrical signal converter coupled to a signal dec
7330663 PMD-reduction processing for a multi-channel receiver February 12, 2008
A multi-channel (e.g. WDM) receiver, in which l PMD compensators are time-shared by n (n>1) communication channels, where 1.ltoreq.l.ltoreq.n-1. The receiver implements PMD monitoring to identify channels exhibiting relatively high amounts of PMD. Some or all of the identified cha
7330660 Optical time division multiplexer February 12, 2008
A TDM comprising: (a) at least two wavelength-tunable devices for outputting a signal, each wavelength-tunable device being adapted to change signal wavelength in response to a change signal; (b) a plurality of on-off gates, one on-off gate being coupled to the output of each wavelen
7330659 Wavelength filter that operates on sets of wavelength channels February 12, 2008
A wavelength filter, for filtering a WDM signal, comprises a demultiplexer, a multiplexer, and a control array connecting the demultiplexer and the multiplexer, where the demultiplexer and the multiplexer have a free spectral range (FSR) smaller than their wavelength channel span.
7330618 Waveguide structure February 12, 2008
An improved waveguide structure employing blocks of waveguide core material positioned sufficiently close to a waveguide core thereby eliminating strain effects and its resulting undesirable polarization crosstalk. The improved structures are applicable to a variety of optical compon
7330465 Auto-provisioning for a voice over IP gateway February 12, 2008
A method of provisioning a gateway (80) is provided in a telecommunications network including a circuit-switched network (90) and a packet-switched network (70). The gateway (80) bridges calls between the circuit-switched network (90) and the packet-switched network (70). The method
7330464 Location identification for IP telephony to support emergency services February 12, 2008
A secondary directory telephone number (SDN) is assigned either to each voice over IP (VOIP) IP port utilized by subscribers or to each public safety access point (PSAP). The SDN, MAC address of the IP port accessed by a subscriber, and geographic location of the SDN or MAC address are
7330462 Managing wireless packet service resources February 12, 2008
In a packet switch for communicating packet switched data to and from a plurality of wireless mobile stations, a method and apparatus for automatically releasing resources tied up for communicating with dormant mobile stations. If the station has been dormant for a sufficiently long
7330460 Method and apparatus for providing efficient VoIP gateway-to-gateway communication February 12, 2008
The invention comprises a system and method for transmitting and receiving multiplexed Voice over Internet Protocol (VoIP) traffic. The invention advantageously provides efficient gateway-to-gateway communication by reducing overhead where at least two conversations are transmitted b
7330430 Packet-based traffic shaping February 12, 2008
A packet-based traffic shaping system including a scheduler that forwards packets in accordance with a scheduling algorithm from queues that have at least a minimum good credit rating. The minimum good credit rating is not dependent on the size of a packet that is to be forwarded. Rate
7329595 Deposition of carbon-containing layers using vitreous carbon source February 12, 2008
An effusion source comprises a vitreous C filament and a heater to increase the temperature of the filament to produce a C vapor. Also described is a deposition method comprising (a) depositing a layer of material on a substrate, and (b) during step (a), heating a body of material th
7328220 Sketch-based multi-query processing over data streams February 5, 2008
A method of efficiently providing estimated answers to workloads of aggregate, multi-join SQL-like queries over a number of input data-streams. The method only examines each data elements once and uses a limited amount of computer memory. The method uses join graphs and atomic sketch
7327986 System and method for vehicle delay notification using a mobile telecommunications network February 5, 2008
A system and method of vehicle delay notification. The method includes determining a vehicle delay, determining that the vehicle delay meets or exceeds a delay threshold, determining one or more affected mobile telecommunications subscribers, and sending a message to one or more mobi
7327958 Transient-based channel growth for optical transmission systems February 5, 2008
A channel-growth plan for an optical transmission system selects channels such that the transients that result in the channels that survive a network failure, such as an upstream fiber cut, are either minimized or effectively handled by some transient-control technique. In one embodi
7327956 Method and apparatus for mitigating intersymbol interference from optical filtering February 5, 2008
A method and apparatus for mitigating intersymbol interference (ISI) from narrow-band optical filtering and improving transmission performance by filtering multichannel optical signals using an optical filter device that exhibits a desired loss ripple in the transmittance profile of the
7327727 Atomic lookup rule set transition February 5, 2008
Performing atomic lookup rule set transitions. A method involves performing lookups using a first set of rules, flagging a subset of the first set of rules as old rules, adding a second set of rules while continuing to perform lookups using the first set of rules, and atomically tran
7327037 High density nanostructured interconnection February 5, 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
7325071 Forwarding traffic in a network using a single forwarding table that includes forwarding informa January 29, 2008
A method and system for forwarding traffic from a plurality of logical networks using a single forwarding table. Traffic is received in the form of packets with a key and a logical traffic identifier. The routing table is traversed to a forwarding table entry having a longest prefixed se
7324808 Information delivery method for communication systems January 29, 2008
A method for delivering certain types of user information over a communication system is provided. Users identify certain user signals that can be transmitted in non-real time, and transmit such signals over signaling channels of the communication system. The system receives and stor
7324782 Location based adaptive antenna scheme for wireless data applications January 29, 2008
A system is provided for adapting and customizing a reverse link beam and a forward link beam that couple a particular mobile unit with a base station for transmitting/receiving data. The forward and reverse links may be dynamically customized for changing data rate requirements, cha
7324760 Apparatus and method for phase synchronization control in RZ optical transmitter January 29, 2008
An optical RZ transmitter comprises an optical signal source and a pair of electro-optical modulators in tandem, one arranged to receive a NRZ electrical data signal and the other a clock signal at the data rate of the data signal. The phase difference between the data signal and the
7324759 Method and apparatus for reducing phase jitter in an optical communication system January 29, 2008
Method and apparatus for transmitting a light signal in an optical transmission system is described. In an example, an optical transmission link includes an input port and an output port. The optical transmission link is configured to propagate optical pulses from the input port to the
7324726 Dispersion compensation apparatus January 29, 2008
A dispersion compensation apparatus providing both coarse and fine dispersion compensation employing a pair of slab waveguides, a grating interconnecting the two waveguides, a mirror disposed within the second slab waveguide and one or more thermooptic lense(s), positioned between th
7324580 Method and apparatus for achieving channel variability in spread spectrum communication systems January 29, 2008
A method and apparatus are disclosed for modulating a communication signal in a CDMA environment using orthogonal N by N Hadamard spread spectrum codes. Orthogonal spreading codes are used that have lengths that are not a power-of 2 to provide additional channel variability for various
7324563 Method and apparatus for transporting a SDH/SONET client signal as a service January 29, 2008
SDH/SONET signals are transported as a service including payload and overhead information by mapping associated payload data or information and selected associated overhead data or information of at least one SDH/SONET client signal to be transported into a SDH/SONET server signal. M
7324545 Methods and apparatus for reliable point to multipoint communications January 29, 2008
An advance over the prior art is achieved through an efficient method to retransmit erroneous frames by identifying the users who are most likely to experience a frame error and requests retransmissions from them. Since the recovery is done by starting with the most likely, second most l
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