Abstract: The present invention provides, in one embodiment, a method of transmitting a message. The method includes transmitting a first codeword from a transmitter to a relay. The method also includes subsequently transmitting a second codeword based on the first codeword from the relay and a third codeword from the transmitter wherein the second and third codewords are transmitted concurrently.
Abstract: Techniques for compressing and decompressing images captured from viewpoints throughout an n-dimensional space. As opposed to conventional approaches, these techniques exploit image coherence over the entire n-dimensional space, providing quick access to images along arbitrary contiguous viewpoint paths during computer graphics applications. This is accomplished by combining a hierarchical data structure with a compression methodology. Such techniques provide for generating and arranging reference images and residual images into a spatial image hierarchy such as a binary tree structure. Images and residuals may be encoded using intra-image compression. A captured image is extracted via a sequence of image warping and addition operations.
Type:
Grant
Filed:
May 30, 2003
Date of Patent:
December 25, 2007
Assignee:
Lucent Technologies Inc.
Inventors:
Daniel G. Aliaga, Ingrid Birgitta Carlbom, Thomas A. Funkhouser, Dimah V. Yanovsky
Abstract: Methods and systems for seamlessly broadcasting data to a user moving among a plurality of broadcast coverage areas. A first signal containing desired data may be received by a receiving device at a user location, wherein the first signal is broadcast from a first transmitting station associated with a first broadcast coverage. Thereafter, the receiving device (e.g., a radio or in-vehicle television) can be automatically instructed to search for and tune to a second transmitting station associated with a second broadcast coverage area broadcasting a second signal containing the desired data if the first signal fades at the user location, thereby permitting the user to seamlessly receive data as the user moves among a plurality of broadcast coverage areas.
Abstract: A telecommunications service application. The application includes associating, each of a plurality of subscribers with at least one respective avatar, where the at least one avatar includes at least one of a visual avatar and an audible avatar. In response to a first subscriber attempting to establish a communications link to a second subscriber, at least one avatar associated with the first subscriber is transmitted to the second subscriber.
Abstract: The present invention is a methodology to prioritize packets based on the conditional probability that given the values of attributes carried by packet, the packet is a legitimate one. We will call this the conditional legitimate probability of a packet from here onward. The conditional probability of each packet is evaluated based on Bayesian estimation technique. This is accomplished by comparing the attributes carried by an incoming packet against the “nominal” distribution of attributes of legitimate packet stream. Since an exact prioritization of packets based on their conditional legitimate probability would require offline, multiple-pass operations, e.g. sorting, we take the following alternative approach to realize an online, one-pass selectively dropping scheme.
Abstract: The present invention provides a process and an apparatus. The process, in one embodiment, includes providing a micro-electro-mechanical system (MEMS) device, the micro-electro-mechanical system (MEMS) device including an actuator coupled to a movable feature, sacrificial material fixing the actuator and movable feature with respect to one another, and a layer of material located over the actuator, movable feature and sacrificial material. The process may further include removing only a portion of the layer of material to expose the sacrificial material, and subjecting the exposed sacrificial material to an etchant to release the movable feature.
Type:
Application
Filed:
June 19, 2006
Publication date:
December 20, 2007
Applicant:
Lucent Technologies Inc.
Inventors:
Vladimir A. Aksyuk, Nagesh R. Basavanhally, Omar D. Lopez, Chien-Shing Pai
Abstract: Methods and apparatus for aligning the transmitters of two or more bidirectional ports of an integrated circuit (IC), particularly an application-specific IC (ASIC) or field-programmable gate array (FPGA). Misalignment of two or more transmitters is determined by the IC itself without the use of external test equipment. Receivers of the bidirectional ports whose transmitters are to be aligned are used by the IC to detect misalignment. Any misalignment of the receivers is also determined and either eliminated or taken into account when aligning the associated transmitters. Variants for ICs with and without internal loop-back capability and for ICs with and without differential outputs are described.
Type:
Application
Filed:
December 28, 2005
Publication date:
December 20, 2007
Applicant:
LUCENT TECHNOLOGIES INC.
Inventors:
Franz Fidler, Praveen Kasireddy, Peter Winzer
Abstract: A method is provided for supplying service to mobile stations (MS) (20) utilizing a wireless telecommunications network (A). Each of the MS has a home country and a home network and is programmed with an identifier comprising a number including a set of digits. Each identifier is one of two types including a first type of identifier that uniquely identifies its MS globally via the entire set of digits making up the identifier (e.g., a true International Mobile Station Identity (IMSI)) and a second type of identifier that uniquely identifies its MS within its home country via a subset of least significant digits making up the identifier (e.g., a Mobile Identification Number (MIN)-based IMSI).
Abstract: A composition, comprising organic polymer molecules, and organic nonpolymeric molecules, wherein the composition is a semiconducting solid. The composition includes a distribution of crystal domains of the polymer molecules and inter-domain regions between the crystal domains, a concentration of polymer molecules being higher in the crystal domains than in the inter-domain regions, and a concentration of nonpolymeric molecules being higher in the inter-domain regions than in the crystal domains.
Abstract: A composition, comprising a medium of organic molecules, a plurality of nanoparticles dispersed in the medium, and a coating chemically bonded to a surface of the nanoparticles, wherein the composition is a semiconducting solid.
Abstract: A server terminal is interconnected with a number of client/peer terminals, as part of a network. For chargeable peer-to-peer file downloads, a client terminal establishes and accesses an account on the server. An information file associated with a data file of interest is obtained by the client from the server. The information file contains the network address of a tracker module. The client terminal accesses the tracker module to obtain the network locations of one or more peer terminals having sections/pieces of the data file stored thereon. The client terminal selects and contacts peer terminals for obtaining the data file sections. The client terminal and/or selected peer terminals securely transmit accounting data, relating to the amount of data transferred, to the tracker module, which forwards it to the server for billing purposes.
Abstract: In a communication network, a user establishes a profile, which is stored on the network. The profile includes a default multimedia greeting and additional greetings, each associated with one or more communication identifiers listed in the profile, e.g., the identifiers are mobile phone numbers of persons who may contact the user. Each greeting is an executable data file configured to play on a mobile phone, computer, or other terminal, and may include audio and changing image multimedia content. In operation, when a calling party calls the user's terminal, the identifier of the calling party's terminal is cross-referenced to the profile. If the identifier is not in the profile, the default greeting is transmitted to the calling party from a network media server. If the identifier is in the profile, the greeting associated with the identifier is transmitted. The greeting is played until the user answers the communication.
Abstract: A process optically transports digital data over an all-optical long-haul communication path. The process includes transporting digital optical data signals at a selected bit rate and a selected wavelength over a sequence of transmission spans. The sequence includes 70 percent or more of the spans of the long-haul all-optical communication path. Each span of the sequence has a primary local maximum optical power point for the wavelength on a transmission fiber and nearest to an input of the span. The transporting causes a cumulative dispersion of each signal to evolve such that residual dispersions per span are positive over some of the spans and are negative over other of the spans. At the primary local maximum power points, magnitudes of cumulative dispersions of the signals in pico seconds per nanometer remain at less than 32,000 times the inverse of the bit rate in giga bits per second.
Type:
Application
Filed:
August 24, 2007
Publication date:
December 13, 2007
Applicant:
Lucent Technologies Inc.
Inventors:
Aref Chowdhury, Rene'-Jean Essiambre, Lisa Wickham
Abstract: A semiconductor waveguide includes a section containing free charge, either electrons or holes, which can be steered into or removed from the path of the beam under the control of electrical signals. The mobile charges come from a potential well which may be either filled or depleted under electrical control. When the well is filled, the charges speed the beam propagation, introducing a phase change. When the well is emptied the beam propagates with extra delay. The phase shifter allows very high speed modulation of the beam using low voltage and low power electronics. The device can be created using standard silicon processing techniques, and integrated with other optical components such as splitters and combiners to create amplitude modulators, attenuators and other optical devices.
Abstract: A pointing device is provided for use in computing devices comprising a printed circuit board, a tracking device adapted to generate a tracking signal in response to a user vocal input and relay the tracking signal to the printed circuit board, and a selection device adapted to generate a selection signal in response to a user manipulation and relay the selection signal to the printed circuit board.
Abstract: A data transmission system that detects fiber faults receives a plurality of data packets carried on a plurality of Gigabit Ethernet links at a plurality of Gigabit Ethernet input/output ports. The system then multiplexes, on a bit by bit basis, the data packets onto an optical link. When the system detects a loss of signal in one of the Gigabit Ethernet links, a signal loss code insert is generated. The system then multiplexes the signal loss code insert with the data packets.
Type:
Grant
Filed:
February 11, 2000
Date of Patent:
December 11, 2007
Assignee:
Lucent Technologies Inc.
Inventors:
Dhritiman Banerjee, Giorgio Giaretta, Anthony Lodovico Lentine, Ted Kirk Woodward
Abstract: A method and apparatus are disclosed for equalizing a channel using improved channel estimates. The present invention assumes that fading will follow a statistical model and obtains an improved channel estimate using one or more basis functions to describe the channel based on known channel statistics. A Karhunen-Loeve expansion can be used for channel estimation to describe the channel. Waveforms are selected that are matched to characteristics of the channel, such as transmission waveforms whose energy is largely restricted to a bandwidth assigned to the channel. Coefficients are estimated for the basis functions using real-time data.
Abstract: One or more control components of an apparatus that connect with one or more mobile phones one or more toll-free calls placed by one or more users of one or more communication devices to one or more toll-free numbers associated with the one or more mobile phones.
Abstract: Multi cast techniques are employed to provide host computer elements access to multiple redundant servers of a communication network in such a way that the hosts need not know which of the servers is active. In one embodiment, the servers provide a gateway function between an Ethernet LAN and an external network. The Ethernet LAN comprises one or more hosts connected to one or more switches, the switches connected to corresponding servers defining an active/standby pair. The servers are connected to an external network by corresponding active/standby links. The hosts send messages directed to a multicast address to at least one of the switches. The switches forward the messages on ports according to a multicast routing topology having been determined by performing IGMP “snooping” of messages issued from the servers. Both the active and standby servers receive the messages; and the active server sends the messages to the external network.
Abstract: A method for objective speech quality assessment that accounts for phonetic contents, speaking styles or individual speaker differences by distorting speech signals under speech quality assessment. By using a distorted version of a speech signal, it is possible to compensate for different phonetic contents, different individual speakers and different speaking styles when assessing speech quality. The amount of degradation in the objective speech quality assessment by distorting the speech signal is maintained similarly for different speech signals, especially when the amount of distortion of the distorted version of speech signal is severe. Objective speech quality assessment for the distorted speech signal and the original undistorted speech signal are compared to obtain a speech quality assessment compensated for utterance dependent articulation.