Patents Assigned to Lucent Technologies, Inc.
  • TEST STRUCTURE TO MONITOR THE RELEASE STEP IN A MICROMACHINING PROCESS
    Publication number: 20090243625
    Abstract: Electrical and visual test structures monitor the degree of removal of conductive sacrificial layers used in micromachining processes that fabricate micro-electromechanical systems (MEMS).
    Type: Application
    Filed: March 31, 2008
    Publication date: October 1, 2009
    Applicant: LUCENT TECHNOLOGIES INC.
    Inventors: Cristian BOLLE, Flavio PARDO
  • PEER-TO-PEER COMMUNICATION BETWEEN DIFFERENT TYPES OF INTERNET HOSTS
    Publication number: 20090248800
    Abstract: In one embodiment, a method for processing, at an enhanced Session Initiation Protocol (SIP) proxy (e-proxy), (1) a SIP INVITE message to a first user at an IPv4/IPv6 dual-stack (DS) host, connected to an IPv6 network, from a second user at an IPv4 host, connected to an IPv4 network. The e-proxy receives the SIP INVITE message from the IPv4 network. When the e-proxy determines that Dual Stack Transition Mechanism (DSTM) service is required, the e-proxy obtains a temporary IPv4 address for the DS host, finds a suitable tunnel end-point (TEP), and sends a corresponding, but modified, INVITE message to the DS host. The modified INVITE message body includes invocation of DSTM service, the temporary IPv4 address, the TEP's IPv6 address, and the IPv4 host's IPv4 address. The e-proxy sends a BIND message to the TEP to bind the DS host's IPv6 address to the temporary IPv4 address for proper tunneling.
    Type: Application
    Filed: March 31, 2008
    Publication date: October 1, 2009
    Applicant: LUCENT TECHNOLOGIES INC.
    Inventors: Thomas P. Chu, Frank Feather, Y.T. Wang
  • Self-Calibrating Integrated Photonic Circuit and Method of Control Thereof
    Publication number: 20090238557
    Abstract: A self-calibrating integrated photonic circuit and a method of controlling the same. In one embodiment, the circuit includes: (1) a substrate, (2) a laser located on the substrate and configured to produce source light at an output frequency, (3) a laser alignment sensor located on the substrate and including: (3a) a reference optical resonator configured to receive the source light, have a null proximate a predetermined center frequency and provide output light as a function of a relationship between the output frequency and the center frequency and (3b) a photodetector configured to provide an electrical signal of a magnitude that is based on the output light and (4) a calibration controller located on the substrate, coupled to the photodetector and configured to adjust the output frequency based on the magnitude.
    Type: Application
    Filed: March 18, 2008
    Publication date: September 24, 2009
    Applicant: Lucent Technologies Inc.
    Inventors: Young-Kai Chen, Mahmoud Rasras, Kun-Yii Tu
  • OPTICAL TRANSMISSION FIBER WITH THERMAL MANAGEMENT FOR HIGH POWER APPLICATIONS
    Publication number: 20090238526
    Abstract: An optical transmission fiber including a core having a first index of refraction, a cladding material located around the core and having a second index of refraction less than the first index of refraction, a first coating material located around a first portion of the cladding material and having a third index of refraction greater than the second index of refraction, and a second coating material located around a second portion of the cladding material and having a fourth index of refraction less than the second index of refraction.
    Type: Application
    Filed: October 13, 2008
    Publication date: September 24, 2009
    Applicant: Lucent Technologies Inc.
    Inventors: Leslie A. Reith, Eva M. Vogel
  • OPTICAL PATTERN RECOGNITION HAVING REDUCED SENSITIVITY TO WAVELENGTH INSTABILITY
    Publication number: 20090226183
    Abstract: In exemplary embodiments, all-optical pattern recognition for an optical input signal is achieved by wavelength-converting the input signal and then passively correlating the wavelength-converted signal based on a specified data pattern. By performing wavelength conversion using a CW laser signal having wavelength stability greater than that of the input signal, errors resulting from wavelength sensitivity of the passive correlator can be reduced. By performing both wavelength conversion and OOK-to-BPSK format conversion prior to the passive correlation, limitations in the number of available OOK patterns can be avoided. By performing the passive correlation in a bi-directional manner, feedback signal can be generated to control the operations of the passive correlator and/or the laser signal source(s).
    Type: Application
    Filed: October 18, 2007
    Publication date: September 10, 2009
    Applicant: LUCENT TECHNOLOGIES INC.
    Inventor: Inuk Kang
  • Nonlinear and Gain Optical Devices Formed in Metal Gratings
    Publication number: 20090225401
    Abstract: A nonlinear optical system comprises a metallic film having a first side and a second side. The nonlinear optical system further comprises a regular array of slits in the metallic film. The slits connect the first and second sides of the metallic film. The array is configured to selectively transmit through the metallic film light having frequencies of a selected frequency band. The nonlinear optical system still further comprises a nonlinear optical material situated within the slit.
    Type: Application
    Filed: March 7, 2008
    Publication date: September 10, 2009
    Applicant: Lucent Technologies Inc.
    Inventors: Gang Chen, Ronen Rapaport
  • METHOD AND APPARATUS FOR ALLOWING NON-IP BASED NETWORKS TO INTERACT WITH IPTV-BASED SYSTEMS
    Publication number: 20090219953
    Abstract: A method of allowing a non-IP-based network to interact with an IPTV-based network is provided. The method comprises: receiving an indication at an IPTV Mediation Application Server (IPTV Mediation AS) that a subscriber to IPTV service is watching television, wherein the television is connected to an IPTV set-top box (IPTV STB) in a home viewing network; receiving a call from a caller directed to a circuit-switched communication device of the subscriber; suspending normal call processing and giving control of the call to the IPTV Mediation AS; interacting with the home viewing network and sending instructions to the IPTV STB regarding a pop-up message to be played on the television; receiving instructions for handling the call at the IPTV Mediation AS; and sending the instructions for handling the call to a service switching point.
    Type: Application
    Filed: February 28, 2008
    Publication date: September 3, 2009
    Applicant: LUCENT TECHNOLOGIES INC.
    Inventors: David S. Benco, Mark A. Ristich
  • INTEGRATED POLARIZATION SPLITTER/COMBINER
    Publication number: 20090214150
    Abstract: Provided is an apparatus and method for use thereof. The apparatus, in one embodiment, includes a 1x2 coupler in communication with a waveguide. The 1x2 coupler, in this embodiment, is configured to separate an input finite bandwidth optical signal provided from the optical waveguide into two similar optical signals. Input ends of first and second waveguide arms, in one embodiment, are in communication with the 1x2 coupler and configured to receive ones of the input optical signals. An inherent birefringence of each of the first and second waveguide arms may be substantially similar. Moreover, the first and second waveguide arms have different physical path lengths that differ by an amount (?L). Additionally, a 2x2 coupler may be in optical communication with an output end of the first and second waveguide arms and configured to provide an output TE polarization and an output TM polarization.
    Type: Application
    Filed: February 22, 2008
    Publication date: August 27, 2009
    Applicant: Lucent Technologies, Inc.
    Inventor: Christopher Richard Doerr
  • CMOS-COMPATIBLE TUNABLE MICROWAVE PHOTONIC BAND-STOP FILTER
    Publication number: 20090214223
    Abstract: According to one embodiment, a microwave photonic band-stop (MPBS) filter uses an electrical input signal to drive an optical Mach-Zehnder modulator. A modulated optical carrier produced by the modulator is applied to an optical filter having at least two tunable spectral attenuation bands that are located substantially symmetrically on either side of the carrier frequency. The resulting filtered optical signal is applied to an optical-to-electrical (O/E) converter to produce an electrical output signal.
    Type: Application
    Filed: February 22, 2008
    Publication date: August 27, 2009
    Applicant: LUCENT TECHNOLOGIES INC.
    Inventors: Young-Kai Chen, Sanjay Patel, Mahmoud Rasras, Kun-Yii Tu
  • SUPERPOSITION TRANSMISSION AND DETECTION OF ACCESS AND BACKHAUL SIGNALS
    Publication number: 20090203310
    Abstract: According to one embodiment of the invention, a wireless communication system (WCS) has a wireless relay and a base station adapted to process wireless access traffic for one or more mobile terminals (MTs) and to process wireless backhaul traffic. The wireless relay is adapted to generate a superimposed signal having a backhaul component intended for the base station and an access component intended for one of the MTs. The wireless relay is further adapted to allocate power between the backhaul and access components based on signal propagation conditions between itself, the base station, and the MT to render the backhaul component decodable at the base station and the access component decodable at the MT.
    Type: Application
    Filed: February 12, 2008
    Publication date: August 13, 2009
    Applicant: LUCENT TECHNOLOGIES INC.
    Inventors: Angel Lozano, Reinaldo Valenzuela
  • Method of Doping Organic Semiconductors
    Publication number: 20090194762
    Abstract: A method includes forming a contiguous semiconducting region that includes polyaromatic molecules. The region is heated to a temperature above room temperature in the presence of a dopant gas and the absence of light to form a doped organic semiconducting region.
    Type: Application
    Filed: February 1, 2008
    Publication date: August 6, 2009
    Applicant: Alcatel-Lucent Technologies Inc.
    Inventors: Christian Leo Kloc, Arthur Penn Ramirez, Woo-Young So
  • PLASMONIC DEVICE FOR MODULATION AND AMPLIFICATION OF PLASMONIC SIGNALS
    Publication number: 20090195782
    Abstract: According to one embodiment of the invention, a plasmonic device has a beam splitter adapted to split a surface-plasmon (SP) input beam into first and second SP beams and direct them along first and second propagation paths, respectively. One of the propagation paths has a plasmonic-beam interaction region adapted to controllably change the phase of the corresponding split beam within that interaction region in response to an SP control signal applied thereto. The plasmonic device further has an SP beam mixer adapted to receive the first and second beams from their respective propagation paths and to mix them to produce an SP output signal. In various configurations, the plasmonic device can operate as a plasmonic-signal amplifier, a plasmonic-beam router, a 1×2 plasmonic-beam switch, and/or a plasmonic modulator.
    Type: Application
    Filed: January 31, 2008
    Publication date: August 6, 2009
    Applicant: LUCENT TECHNOLOGIES INC.
    Inventors: Girsh Blumberg, Benard Yurke
  • METHOD AND APPARATUS FOR PROVIDING VIRTUAL WI-FI ACCESS
    Publication number: 20090198808
    Abstract: A method of providing virtual Wi-Fi service via a virtual Wi-Fi access network is provided. The method comprises: receiving data from an owner of an individual Wi-Fi access point; updating the owner of the Wi-Fi access point with access IDs, passwords, and security keys for a plurality of virtual Wi-Fi access subscribers; receiving subscriber data from a virtual Wi-Fi access subscriber; providing the subscriber with virtual Wi-Fi access log-in information; connecting the subscriber to the virtual Wi-Fi access network, wherein the virtual Wi-Fi access network comprises a plurality of individual Wi-Fi access points in communication with at least one virtual Wi-Fi access server; and billing the subscriber for virtual Wi-Fi access.
    Type: Application
    Filed: January 31, 2008
    Publication date: August 6, 2009
    Applicant: LUCENT TECHNOLOGIES INC.
    Inventors: Yigang Cai, Suzann Hua
  • METHOD AND APPARATUS FOR VIRTUAL WI-FI SERVICE WITH AUTHENTICATION AND ACCOUNTING CONTROL
    Publication number: 20090199281
    Abstract: A method of providing virtual Wi-Fi service with accounting and authentication control via a virtual Wi-Fi access network is provided. The method comprises: connecting a subscriber to the virtual Wi-Fi access network, wherein the virtual Wi-Fi access network comprises a plurality of individual Wi-Fi access points in communication with at least one virtual Wi-Fi access server; prompting the subscriber for an account ID and password; performing subscriber authentication at the virtual Wi-Fi access server; where the subscriber has been authenticated, establishing a Wi-Fi session for the subscriber in the virtual Wi-Fi access network and applying an accounting function to the Wi-Fi session; and notifying the virtual Wi-Fi access server when the subscriber exits from the virtual Wi-Fi network.
    Type: Application
    Filed: January 31, 2008
    Publication date: August 6, 2009
    Applicant: LUCENT TECHNOLOGIES INC.
    Inventors: Yigang Cai, Suzann Hua
  • DIFFUSER CONFIGURATION FOR AN IMAGE PROJECTOR
    Publication number: 20090185141
    Abstract: According to one embodiment, an image projector has a spatial light modulator (SLM) adapted to modulate illumination from a laser with a spatial pattern such that the modulated illumination projects an image on a viewing screen. The image projector further has an optical diffuser located on an optical path between the laser and the SLM. The laser is adapted to illuminate the SLM through the optical diffuser to create an illuminated area at the SLM. The optical diffuser is adapted to introduce an angular spread into the light transmitted therethrough. The image projector is adapted to move the illuminated area with respect to the SLM to mitigate speckle in the projected image.
    Type: Application
    Filed: January 22, 2008
    Publication date: July 23, 2009
    Applicant: Lucent Technologies, Inc.
    Inventors: Gang Chen, Roland Ryf
  • Multi-color light source
    Publication number: 20090185140
    Abstract: System including first and second light sources and controller. First light source is configured to generate first light beam of first perceived color. Second light source is configured to generate second light beam of different second perceived color. Controller is configured to direct light from first light beam to an image projector during first time intervals and to direct light from second light beam to an image projector during second time intervals. First light source generates first light beam with first intensity. Second light source generates second light beam with different second intensity. Controller is configured to temporally interleave first and second time intervals such that second time intervals are longer than first time intervals. Method also provided.
    Type: Application
    Filed: January 22, 2008
    Publication date: July 23, 2009
    Applicant: Lucent Technologies, Inc.
    Inventors: Gang Chen, Roland Ryf
  • CMOS-COMPATIBLE POLARIZATION-DIVERSE TUNABLE OPTICAL BANDPASS FILTER
    Publication number: 20090180729
    Abstract: According to one embodiment, an optical filter has a polarization rotator and two instances of an optical bandpass filter (OBPF). The first instance of the OBPF processes a TE-polarized component of an optical input signal to produce a first filtered signal. The polarization rotator then transforms the TE polarization of the first filtered signal into the TM polarization. The polarization rotator also transforms the polarization of a TM-polarized component of the optical input signal into the TE polarization. The second instance of the OBPF processes the resulting TE-polarized signal to produce a second filtered signal. The first and second filtered signals having TM and TE polarizations, respectively, are then combined to produce a filtered output signal.
    Type: Application
    Filed: January 15, 2008
    Publication date: July 16, 2009
    Applicant: LUCENT TECHNOLOGIES INC.
    Inventor: Mahmoud Rasras
  • Firmware management tool
    Patent number: 7562345
    Abstract: A firmware management method and system provides close control over a firmware development process via a firmware management tool and an archive. The archive can be used to store firmware files containing firmware source code in progress as well as finished source code along with its associated object code. The management tool includes an auditing function and a workflow management function so that the status of each firmware file and the work history of that file can be monitored and stored. By providing a centralized location for firmware source and object code, the tool makes it easier to track and modify firmware code at any stage as well as ensures that the code ultimately sent to a chip manufacturer is the final version of the code.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: July 14, 2009
    Assignee: Lucent Technologies, Inc.
    Inventors: Brian J. Bogdan, Roger Ellis Doles, Jr., Charles Francis Gullage, James Baldwin Salisbury
  • Cloaking device detection system
    Publication number: 20090173886
    Abstract: System including electromagnetic radiation source and electromagnetic radiation detector. Electromagnetic radiation source is configured to excite, with electromagnetic radiation having first source frequency, object configured for suppressing responsive emission of electromagnetic radiation having first source frequency. Electromagnetic radiation detector is configured to receive responsive emission of electromagnetic radiation from object. System is configured to detect presence of object. Method includes exciting, with electromagnetic radiation having first source frequency, object configured for suppressing responsive emission of electromagnetic radiation having first source frequency. Method includes receiving responsive emission of electromagnetic radiation from object and utilizing responsive emission to detect presence of object.
    Type: Application
    Filed: January 3, 2008
    Publication date: July 9, 2009
    Applicant: Lucent Technologies, Inc.
    Inventor: Aref Chowdhury
  • FRONT PROJECTION SCREEN, A METHOD OF CONSTRUCTING THE SAME AND A FRONT PROJECTION SYSTEM INCLUDING THE SAME
    Publication number: 20090168026
    Abstract: An apparatus, a method of fabricating a front projection screen and a front projection system is provided. In one embodiment, the apparatus includes a front projection screen including an image surface and a selective transmission layer fixed to and covering the surface. The surface is configured to diffusely reflect light incident thereon and the selective transmission layer is configured to allow projected light from a laser source to illuminate the surface and block ambient light incident thereon. The laser projected light has a wavelength within a designated bandwidth.
    Type: Application
    Filed: December 28, 2007
    Publication date: July 2, 2009
    Applicant: Lucent Technologies Inc.
    Inventor: Gang Chen