Patents Assigned to Lucent Technologies
  • Automatic speed dial updating
    Patent number: 6298131
    Abstract: A telephone according to the invention provides a memory adapted to hold a speed dial number, a calling mechanism adapted to place an outgoing call to the speed dial number based on user input, an input unit adapted to receive updating information, and a speed dial updating unit adapted to change the speed dial number in the memory according to the updating information. In an alternative embodiment, a method of updating a telephone number associated with a speed dial button includes the steps of receiving a signal relating to a change in the telephone number, and updating a memory location to reflect the change in the telephone number.
    Type: Grant
    Filed: March 30, 1998
    Date of Patent: October 2, 2001
    Assignee: Lucent Technologies Inc.
    Inventor: John P. Veschi
  • Single stage voltage controlled ring oscillator
    Patent number: 6297706
    Abstract: A single stage voltage controlled ring oscillator includes a trans-admittance voltage-to-current circuit coupled to a trans-impedance voltage-to-current circuit. The output of the trans-impedance circuit is connected to the input of the trans-admittance circuit. The trans-admittance and trans-impedance circuit are preferably conjugately matched and may be coupled to each other via one or more transmission lines, the length of which can be selected to set a desired nominal oscillation frequency. The trans-impedance and trans-admittance circuits may also include voltage-controllable components which can be adjusted to tune the oscillation frequency.
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: October 2, 2001
    Assignee: Lucent Technologies Inc.
    Inventor: Rajasekhar Pullela
  • Plenum rated high modulus buffered optical fiber
    Patent number: 6298188
    Abstract: The present invention relates to a buffered optical fiber which has a high flame resistance and high modulus. The buffered optical fiber comprises a cladded glassy core through which optical signals can be transmitted, at least one coating layer surrounding the cladded glassy core which protects the core from microbending forces, and a buffer layer material that surrounds the at least one coating layer to form a buffer layer that protects the coated optical fiber from mechanical forces and from flame. In the preferred embodiment, the buffer material comprises homopolymer of polyvinylidine fluoride.
    Type: Grant
    Filed: October 22, 1999
    Date of Patent: October 2, 2001
    Assignee: Lucent Technologies Inc.
    Inventors: J. Thomas Chapin, Montri Viriyayuthakorn, Carla G. Wilson
  • Microwave vacuum tube device employing grid-modulated cold cathode source having nanotube emitters
    Patent number: 6297592
    Abstract: An improved gridded microwave tube is provided, the tube containing a cold cathode, an anode, and a grid located between the anode and cathode. In one embodiment, the cold cathode has a refractory metal substrate and carbon nanotube emitters, the emitters having a diameter of 1 to 300 nm and a length of 0.05 to 100 &mgr;m. The grid-cathode spacing is 1 to 100 &mgr;m, the grid contains apertures having a maximum dimension of 0.5 to 100 &mgr;m, and the grid thickness is 0.5 to 100 &mgr;m. Emission from the cathode directly onto the grid material itself, which undesirably heats the grid, is reduced by either (a) the presence of a shadow mask between the grid and the emitters or (b) selective formation of the emitters in locations that correspond to the grid apertures. The microwave tube operates at a frequency of greater than 0.5 GHz, advantageously greater than 2 GHz.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: October 2, 2001
    Assignees: Lucent Technologies Inc., Teledyne Technologies, Inc.
    Inventors: Yehuda Goren, Sungho Jin, Gregory P Kochanski, Wei Zhu
  • Method for performing image-acquisition with preview of image to be transferred
    Patent number: 6298172
    Abstract: Summarily described, the invention embraces an improved image-acquisition apparatus of the type having a transparent platen with an inner surface and outer surface, where a workpiece having graphic matter is positioned on the outer surface of the platen and an image-acquisition device disposed adjacent the inner surface of the platen transfers an image of the graphic matter to another medium. The inventive improvement comprises a preview display feature comprising a preview display screen visible to the user and an image-processing system disposed proximal the inner surface of the platen coupled to the preview display screen. The image-processing system images a region of the platen defining a platen-image and forms the platen-image upon the display screen.
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: October 2, 2001
    Assignee: Lucent Technologies Inc.
    Inventors: Susanne Arney, Rafael N. Kleiman, Jacqueline J. Moskowitz
  • Method and apparatus for removing optical fiber
    Patent number: 6296201
    Abstract: A system for removing optical fiber from a spool, including a frame adapted to support the spool of optical fiber, and a head adapted to be placed in axial alignment with the spool supported by the frame. The head has an internal passage that extends therethrough which is adapted to receive a portion of the optical fiber to be removed from the spool. The head further has a supply passage that extends through the head to the internal passage. This supply passage is oriented within the head to channel pressurized gas through the supply passage and through the internal passage so as to draw the optical fiber through the head to unravel the optical fiber from the spool.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: October 2, 2001
    Assignee: Lucent Technologies Inc.
    Inventors: Camille Joy Jackson, Kazuyuki Uemura
  • Method of detecting semiconductor defects
    Patent number: 6297503
    Abstract: A method of detecting defects within a semiconductor device is disclosed. An ion beam is focused in predetermined directions onto an area of a semiconductor device that is believed to have a suspected defect. A portion of the semiconductor device is milled and forms a thin film specimen to be removed from the semiconductor device. The thin film specimen is removed from the semiconductor device and placed onto an insulated film mount. Electrical connection points are created on previously unexposed portions of the thin film specimen by depositing a line of conductive material using a focused ion beam. The surface of the thin film specimen is scanned with an electron beam in a scanning electron microscope and observed for contrast. Processing errors are determined and the lateral resolution is about the electron beam size.
    Type: Grant
    Filed: June 9, 1999
    Date of Patent: October 2, 2001
    Assignee: Lucent Technologies Inc.
    Inventors: Jeffrey B. Bindell, Frederick A. Stevie
  • Electromagnetic interference shielding enclosure
    Patent number: 6297969
    Abstract: An electromagnetic interference (EMI) shielding enclosure includes a base having a first threaded lip. A cover has a second threaded lip. The second threaded lip screws onto the first threaded lip and attaches the cover to the base. The base is provided with a first inner recessed wall and the cover is provided with a second inner recessed wall. When the cover is screwed onto the base, the first and second recessed walls form a hollow cavity within the EMI shielding enclosure. The hollow cavity has a curvilinear profile in cross section, such as an ellipsoidal profile, which improves the EMI attenuation characteristics of the EMI shielding enclosure.
    Type: Grant
    Filed: August 10, 1999
    Date of Patent: October 2, 2001
    Assignee: Lucent Technologies Inc.
    Inventor: Behzad Mottahed
  • Method for multi-mode operation of a subscriber line card in a telecommunications system
    Patent number: 6298065
    Abstract: A method and system for decreasing the probability of blocked access to a local exchange carrier's telecommunications network comprises a multi-mode line card for determining whether a particular call is a voice or data call. If a call is determined to require data transmission, the line card assigns time slots for interconnection of the line card to a serving digital switch. If no meaningful data is received, no time slots are assigned. In this manner, time slots interconnecting the serving digital switch to a line card are established only if data or voice is being transmitted from a subscriber line.
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: October 2, 2001
    Assignee: Lucent Technologies Inc.
    Inventors: Kevin Eugene Dombkowski, Charles Arthur Witschorik
  • High availability distributed call processing method and apparatus
    Patent number: 6298039
    Abstract: A method of delivering highly-reliable, fault-tolerant communications services in a telecommunications network of distributed call processing systems. The method advantageously identifies a set of objects within the telecommunications network requiring checkpointing; checkpoints the objects; and subsequently restores the checkpointed objects in the event of a failure. Various aspects of the method are disclosed, including restoration strategies.
    Type: Grant
    Filed: January 31, 1998
    Date of Patent: October 2, 2001
    Assignee: Lucent Technologies Inc.
    Inventors: Richard Wayne Buskens, Thomas F. La Porta, Yow-Jian Lin, Kazutaka Murakami, Ramachandran Ramjee
  • Method and apparatus providing insertion of inlays in an application user interface
    Patent number: 6297823
    Abstract: A method providing for an improved user interface. In one aspect of the invention, a method is disclosed allowing an inlay from one application to have its parent application set to a second application. This allows, for example, an application which provides for network monitoring to have an inlay displayed in a web browser or the like allowing easier viewing of the inlay by the user when executing the web browser.
    Type: Grant
    Filed: April 3, 1998
    Date of Patent: October 2, 2001
    Assignee: Lucent Technologies Inc.
    Inventors: Anupam Bharali, George Skillman
  • Low-voltage joystick port interface
    Patent number: 6297751
    Abstract: The joystick port interface includes an integrated circuit receiving an analog joystick position measurement signal and outputting a digital pulse signal to a processor which signifies a joystick coordinate value. The integrated circuit includes a pulse generator and a bidirectional buffer circuit. The bidirectional buffer circuit receives the analog joystick position measurement signal and selectively discharges an RC network capacitor which provides this analog measurement. This implementation provides a joystick port which uses low-voltage CMOS VLSI structures which can interface a conventional high-voltage joystick with the processor.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: October 2, 2001
    Assignee: Lucent Technologies Inc.
    Inventors: Jalil Fadavi-Ardekani, Raymond S. Livingston, Richard J. Niescier, David L. Potts
  • Multipitch optical fiber ribbon
    Patent number: 6295400
    Abstract: A multipitch optical fiber ribbon includes optical fibers that extend longitudinally and are laterally adjacent. The optical fibers are bonded together by bonding material having opposite first and second ends. A lateral first spacing is defined between adjacent optical fibers at the first end of the bonding material and a lateral second spacing is defined between adjacent optical fibers at the second end of the bonding material, and the first spacing is different from the second spacing. The bonding material includes a first segment at the first end of the bonding material and a second segment at the second end of the bonding material. The composition of the first segment of the bonding material can be the same as the composition of the second segment of the bonding material, or the first and second segments of the bonding material can have different compositions.
    Type: Grant
    Filed: October 11, 1999
    Date of Patent: September 25, 2001
    Assignee: Lucent Technologies Inc.
    Inventor: Muhammed Afzal Shahid
  • Integrated cellular telephone basestation with Internet gateway
    Patent number: 6295457
    Abstract: A system for directly connecting a mobile communication system to a data network is provided. A user initiates data communication with the data network from a mobile communication system equipped with a computer, a modem and a mobile communication device. Data communication signals, which may be designated for routing to the data network, are transmitted from the mobile communication device to a hybrid base station having a standard base station, a control unit and a data network gateway, via a wireless telecommunication network. The signals are received by the hybrid base station and routed to the control unit which determines whether the received data communication signals are of the type designated for routing to the data network.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: September 25, 2001
    Assignee: Lucent Technologies Inc.
    Inventor: Shankar Narayanaswamy
  • Disposable seal system
    Patent number: 6293557
    Abstract: A sealing system for use in a chemical or gaseous delivery system has a delivery tube connected to a source of the material to be delivered and which intrudes into the revolving region where the material is to go. The sealing system has a secondary sealing nut affixed to the delivery end of the tube, and a primary sealing nut mounted on the secondary nut with a sealing member therebetween. When the region revolves, the two nuts are automatically tightened to hold the sealing member in firm and positive engagement with the housing surrounding the region.
    Type: Grant
    Filed: August 26, 1999
    Date of Patent: September 25, 2001
    Assignee: Lucent Technologies Inc.
    Inventor: Peter Michael Mueller
  • Speech coding selection based on call related information
    Patent number: 6295340
    Abstract: A variable voice compression device and method in a voice messaging system is provided. The device includes a call related information/coding table or database which contains associations between call related information regarding desired calling parties, and selected coding techniques and effective data rates resulting in varying voice compression ratios. Upon receipt of an incoming call, call related information sent from the central office is compared to entries in the call related information/coding table or database. If a match is found, the subsequent voice message is encoded with a coding technique and effective data rate determined from the matching entry in the call related information/coding table or database. Otherwise, the voice message is encoded with a default coding technique and effective data rate.
    Type: Grant
    Filed: May 13, 1998
    Date of Patent: September 25, 2001
    Assignee: Lucent Technologies Inc.
    Inventors: Joseph M. Cannon, James A. Johanson, Vasu Iyengar
  • Static partial order reduction
    Patent number: 6295515
    Abstract: A static partial order reduction generator and process result in a substantially reduced state space graph of a multi-process system, independently of the model checking process. The process of this invention creates a modified state graph generator with appended rules that allow any desired state searching tactic (breadth first, depth first, etc.) to be employed when states and transitions are considered in the course of verification. This permits use of existing model checking tools without needing to modify them. The static partial order reduction is made possible by realizing that a prior art condition that at least one state along each cycle of the reduced state graph must be fully expanded can be guaranteed by considering the individual processes that make up the system and identifying certain transitions in those processes.
    Type: Grant
    Filed: October 14, 1998
    Date of Patent: September 25, 2001
    Assignee: Lucent Technologies Inc.
    Inventors: Robert Paul Kurshan, Vladimir Levin, Marius Minea, Doron A. Peled, Husnu Yenigun
  • Alignment techniques for epitaxial growth processes
    Patent number: 6294018
    Abstract: The specification describes a lithographic technique in which alignment marks are defined in a first semiconductor layer and the alignment marks are then covered with a protective SiO2 layer. After subsequent semiconductor layer growth steps, which selectively deposit on the former semiconductor layer but not on the protective layer, the alignment marks remain undistorted and visible to the exposure tool for subsequent processing.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: September 25, 2001
    Assignee: Lucent Technologies
    Inventors: Robert Alan Hamm, Rose Fasano Kopf, Christopher James Pinzone, Robert William Ryan, Alaric Tate
  • Chassis grounding ring for a printed wiring board mounting aperture
    Patent number: 6295210
    Abstract: A printed wiring board is adapted to be mounted to a chassis using a fastener. The chassis provides an electrical ground for the printed wiring board. The board includes first and second sides and a mounting aperture extending therethrough for receiving the fastener. A plurality of spaced apart solder pads are disposed on one side of the board and adjacent to the mounting aperture. The pads are adapted to provide an electrical connection to the chassis. At lease one aperture is disposed in each of the plurality of pads. The aperture is plated creating an electrical connection between the sides of the board.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: September 25, 2001
    Assignee: Lucent Technologies, Inc.
    Inventors: Chris Allan Lanzone, Richard A. Pierson, Andrea T. Sandage
  • Global packet dynamic resource allocation for wireless networks
    Patent number: 6295285
    Abstract: A reuse management method for a packet-switched wireless network having a plurality of links between a plurality of terminal devices and at least one base station. Each link is a wireless connection in a medium between a terminal device of the plurality of terminal devices and the one base station. A request for a link in the medium for transmitting a data packet is received. Permission to transmit the data packet over the requested link is granted based on compatibility of the requested link with other links in the medium. Granting permission to transmit the data packet includes assigning a slot for transmitting the data packet over the requested link. The packet-switched wireless network is also coupled to a plurality of connections. Each connection has an associated quality of service and the packet-switched wireless network has a virtual service rate.
    Type: Grant
    Filed: April 17, 1997
    Date of Patent: September 25, 2001
    Assignee: Lucent Technologies Inc.
    Inventor: James F. Whitehead