Patents Examined by Trinh Do Dinh
  • Patent number: 6781559
    Abstract: A support for an adjustable sensor housing, in particular for a radar sensor, in which the position of the sensor housing on the support is changeable using at least one adjusting screw. The at least one adjusting screw is able to be rotated using a regulatable adjusting drive, and for adjustment of the sensor housing there is an electronic control system present which conveys adjustment signals to the particular adjusting drive. A plug-in connection for a bus connection of the control unit electronics for communication with a higher-level bus system is present, and a compact support housing is constructed in which the electronic control system, the at least one adjusting drive and the plug-in connection are accommodated, and from which attachment points of the adjusting screws for the adjustable sensor housing protrude.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: August 24, 2004
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Winter, Thomas Klaas, Bernhard Lucas, Thomas Beez, Oliver Wackerl
  • Patent number: 6738026
    Abstract: A low-profile, tri-filar, helix antenna with linear polarization or circular polarization (CP) includes a single feed without an internal feed network. The antenna includes three metal, bent, quarter-wave monopoles positioned at 0°, 120°, and 240° on a top surface of the antenna. One of the monopoles is directly fed, and the other two are parasitically coupled to the fed monopole. Metal perturbations on the parasitic monopoles control their coupling phase to the fed monopole, and determine the antenna's polarization. Without metal perturbations, the parasitic monopoles are linear polarized and both monopoles are coupled to the fed monopole at ±120. With metal perturbations, the parasitic monopoles are CP polarized and coupled at +120 degrees to the fed monopole. Various perturbations, capacitive and inductive shunts options are possible. The three monopoles are supported by a dielectric substrate, or they are freestanding.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: May 18, 2004
    Assignee: Centurion Wireless Technologies, Inc.
    Inventors: Patrick Daniel McKivergan, Court Emerson Rossman
  • Patent number: 6664936
    Abstract: A loop antenna device has a first antenna generating a first magnetic field and a second antenna generating a second magnetic field such that the first magnetic field and the second magnetic field each have a different axis. A series resonant circuit and a parallel resonant circuit are provided for the first antenna and the second antenna, respectively. The series resonant circuit has at least a second coil, a link coil wound around a ferrite core, and a capacitor in series. The parallel resonant circuit has a first coil and a capacitor. When one of the first and second antennas are disposed in the vicinity of a conductor, an electromagnetic wave absorbing member is disposed between a conductor and one of the first and second antennas.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: December 16, 2003
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Kiyokazu Ieda, Yuichi Murakami, Satoshi Muramoto, Eiji Mushiake
  • Patent number: 6642894
    Abstract: An airborne repeater antenna array (70) in which beams transmitted from multiple antenna elements (80) of the array to form terrestrial communications. cells are shaped according to predetermined system parameters. At least one of airplane telemetry data (58) indicating an airplane flight pattern location, adjacent cellular system beam footprint data, and call distribution load within a terrestrial cell are received, and a complex gain is dynamically computed for each of the multiple antenna elements based on such data to thereby output a plurality of beams that form desired geographic communications coverage cells (100, 102, 104, 108).
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: November 4, 2003
    Assignee: Motorola, Inc.
    Inventors: Jonathan H. Gross, Duke E. Hanson, Thomas Peter Emmons, Jr., James W. Startup
  • Patent number: 6633134
    Abstract: Each unit pixel of an active-matrix-driven organic EL display device includes a pixel EL element and an associated pixel circuit. An array of the pixel EL elements are formed on the front surface of a multilayer substrate, the rear surface of which mounts thereon a drive IC and the plurality of pixel circuits. The electrodes of the drive IC are connected to the anode and cathodes of the pixel EL elements through via holes and interconnects formed in the multilayer substrate.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: October 14, 2003
    Assignee: NEC Corporation
    Inventors: Yuji Kondo, Atsushi Kota
  • Patent number: 6603154
    Abstract: A lower electrode of a semiconductor is directly connected to a heat sink, while a first electrode and a second electrode are connected to a plate-shaped second conductor by means of a first conductor. Radiated heat of the semiconductor is directly conducted to the heat sink and absorbed. The heat is radiated by being further conducted to the plate-shaped second conductor via the first conductor, thereby allowing the semiconductor to have a reduced temperature.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: August 5, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshinori Sakai, Kazuhiro Nobori, Kazuo Arisue
  • Patent number: 6590344
    Abstract: A gas distribution system for improving asymmetric etching and deposition control over a substrate diameter in a plasma reactor including a plasma reactor chamber further including a substrate holder for holding a substrate surface disposed in a lower portion of said plasma reactor; at least one gas distributor disposed within the plasma reactor chamber for distributing reactant gases where at least one gas distributor including a plurality of gas feed zones in communication with at least one gas source for selectively delivering a gas flow independently to at least one of the plurality of gas feed zones.
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: July 8, 2003
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Shun-Jan Tao, Huan-Just Lin, Mong-Song Liang
  • Patent number: 6583767
    Abstract: In transceiver apparatus, there is a plurality of sets (A-H) of substantially unidirectional antennae. Each set of antennae has a single radio subsystem for providing a radio output signal for transmission by one of the antennae in the set and for receiving a signal received by one of the antennae to provide an output signal from the radio subsystem. Each of the plurality of radio subsystems has a switch. The switch is operated to switch the output of the radio subsystem to a selected one of the antennae in the set for transmission of a radio signal by said selected antenna and to switch an input of the radio subsystem to a selected one of the antennae in the sets such that a signal received by said selected antenna is passed as an input to the radio subsystem.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: June 24, 2003
    Assignee: Radiant Networks PLC
    Inventor: Stephen M. Fitz
  • Patent number: 6548965
    Abstract: An electrodeless fluorescent lamp employs a glass envelope made from a single linear tube or bulb and a reentry cavity disposed on the envelope axis and sealed to the envelope. The envelope is filled with inert gas and mercury vapor. Phosphor and protective coatings are disposed on the inner surfaces of the envelope and the cavity. An induction coil of A few turns made from silver coated copper wire is wrapped around the envelope in its axial direction. The inductively-coupled axially uniform plasma is generated inside the envelope. The discharge electric field and current form a closed-loop path inside the envelope along its walls. The introduction of the reentry cavity decreases the lamp wall loading without loosing lamp power efficiency and efficacy. The lamp is operated at frequencies from 50 kHz to 200 MHz and RF power from 5 W to 2000 W without the use of ferrite inside of the reentry cavity.
    Type: Grant
    Filed: February 16, 2000
    Date of Patent: April 15, 2003
    Assignee: Matsushita Electric Works Research and Development Labs Inc.
    Inventors: Jakob Maya, Oleg Popov, Robert Chandler
  • Patent number: 6534927
    Abstract: A multiple-light cold-cathode tube lighting device of the invention includes a main inverter circuit 1 constituted by a positive feedback amplifying circuit including transistors Q1, Q2 and having an oscillating function, and a sub-inverter circuit 2 constituted similarly to the main inverter circuit 1. One of the base windings is connected to the positive feedback circuits of the two inverter circuits. Cold-cathode tubes CCFL1 connected to respective output ends of the two transformers T1, T2 of the main inverter circuit 1 are synchronized with cold-cathode tubes CCFL2 connected to respective output ends of two transformers of the sub-inverter circuit 2, and the cold-cathode tubes CCFL1, CCFL2 can be individually subjected to light control by using switches.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: March 18, 2003
    Assignee: Kabushiki Kaisha Advanced Display
    Inventor: Hironori Takaoka
  • Patent number: 6535167
    Abstract: An inverted-F-shaped antenna pattern is formed as a driven element on the obverse-side surface of a glass-epoxy circuit board. This antenna pattern has a feeding conductor pattern connected to a feeding transmission path formed on the obverse-side surface of the circuit board and a grounding conductor pattern connected to a grounding conductor portion formed on the obverse-side surface of the circuit board. Moreover, an inverted-L-shaped antenna pattern is formed as a passive element on the reverse-side surface of the circuit board. This antenna pattern has a grounding conductor pattern connected to a grounding conductor portion formed on the reverse-side surface of the circuit board. Forming the inverted-F-shaped antenna pattern and the inverted-L-shaped antenna pattern so as to overlap each other yields a laminate pattern antenna that is usable in a wide frequency range.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: March 18, 2003
    Assignees: Sharp Kabushiki Kaisha
    Inventors: Yoshiyuki Masuda, Hisamatsu Nakano
  • Patent number: 6518709
    Abstract: A color organic EL display is provided with first electrodes extending in a column direction, second electrodes extending in a row direction, pixels arranged in a row direction and a column direction, and an organic luminescence layer between the first electrode and the second electrode which emits luminescence by applying a voltage to the first and the second electrodes to make an electric current flow therebetween. The number of the first electrodes is twice of the number of displaying columns. The second electrode is provided at every two displaying rows. Each of the pixels consists of three sub pixels for three luminescence colors arranged in order in the row direction. Each of the sub pixels is provided in each of regions where the first electrodes intersect with the second electrodes in a plan view. The sub pixels are arranged while being shifted to each other by a half pitch in the row direction between adjacent two displaying rows.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: February 11, 2003
    Assignee: NEC Corporation
    Inventors: Yuichi Iketsu, Eiichi Kitazume
  • Patent number: 6441788
    Abstract: An antenna structure obtains a snap-in antenna having a short signal transmission path, it being possible to switch between an antenna of a case and an outside antenna with low transmission loss. When an antenna side attachment section is inserted into an antenna attachment hole, a plunger is elastically forced so as to protrude in a direction intersecting with the insertion direction of a spring connector provided on a circuit board and elastically contacts a conductive member which is electrically connected to an antenna base. A small through-hole is provided in the conductive member at the contact position; a second spring connector is provided on the antenna attachment section and has a second plunger, one end of the plunger passing through the through-hole and being elastically forced toward the other side so as to project thereto; a coaxial connector containing section is provided at the other end and a coaxial connector can be inserted therein.
    Type: Grant
    Filed: August 22, 2000
    Date of Patent: August 27, 2002
    Assignee: Yokowo Co., Ltd.
    Inventors: Shinichi Ishizuka, Yasuhiro Minoura
  • Patent number: 6433754
    Abstract: A sparse phased array including a generally logarithmic spiral lattice of multiple radiating and receiving elements defining a logarithmic spiral of no translational periodicity which ameliorates grating lobes, even for wide element placement. The array has a substantially equal unit cell size per radiating element which in turn best matches the array to the medium and is capable of operating at relatively high power levels in one or more frequency bands. The unit cells include an area wherein each of said unit cells include an area of space around the respective antenna element within which all points therein are closer to said respective antenna elements than to any other antenna element of said plurality of antenna elements.
    Type: Grant
    Filed: May 23, 2001
    Date of Patent: August 13, 2002
    Assignee: Northrop Grumman Corporation
    Inventor: Daniel Wilharm Boeringer
  • Patent number: 6429821
    Abstract: An antenna (20) operable over a predetermined range of frequency includes a transmission line (36), a transformer network (42) connected to one end of the transmission line, and at least one inductor-resistor network (46) connected to an opposite end of the transformer network. The inductor-resistor network (46) changes the effective electrical length of the antenna (20) such that as the frequency of operation changes, the current distribution above and below the inductor-resistor network changes in a corresponding manner. A second inductor-resistor network (56) may be serially connected to the other network (46), wherein both function to reduce the current thereabove. Accordingly, as the frequency of operation increases, the electrical height of the antenna decreases.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: August 6, 2002
    Assignee: Shakespeare Company
    Inventor: John R. Lewis, Jr.
  • Patent number: 6429817
    Abstract: An antenna system that may be used in a portable radiotelephone. In one embodiment, an antenna is housed within a first housing portion and is extended therefrom when a second portion of the housing is pivoted to an open position relative to the first housing portion. The antenna is retracted back into the first housing portion when the second housing portion is pivoted to a closed position relative to the first housing portion. In another embodiment, the second housing portion is slidably affixed to the first housing portion and the antenna is extended from the first housing portion when the second housing portion is moved relative to an open position relative to the first housing portion and the antenna is retracted into the first housing portion when the second housing portion is moved into a closed position relative to the first housing portion.
    Type: Grant
    Filed: October 3, 2000
    Date of Patent: August 6, 2002
    Assignee: BellSouth Intellectual Property Corporation
    Inventors: George S. Creigh, Michelle D. Liviccori
  • Patent number: 6421013
    Abstract: A wireless article, such as an identification tag or badge, includes an electronic device mounted on a substrate and connected a loop antenna for receiving and/or transmitting radio frequency signals. Electrically conductive material disposed on the substrate or in holes through the substrate of the wireless article connect the antenna terminals to the electronic device contacts. The structure and materials of the wireless article may be rugged and strong to provide a tamper-resistant article, and/or may include one or more weakened or frangible portions that easily break to provide a tamper-destruct article. The wireless article may be arranged to resist heat, moisture and/or solvents, to function in severe environments such as laundering and industrial processes.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: July 16, 2002
    Assignee: Amerasia International Technology, Inc.
    Inventor: Kevin Kwong-Tai Chung
  • Patent number: 6417634
    Abstract: A method and a system for obtaining a proper resonance of the RF electrodes when using a preset or predetermined stable frequency oscillator in a cyclotron accelerator without using mechanical tuning devices. In order to maintain a high RF electrode voltage during operation the RF electrode system resonance is monitored and the frequency of the stable frequency generator is controlled by a feedback system continuously monitoring the matching of the oscillator output frequency and the resonance of the RF electrode system. Necessary small adjustments of the stable oscillator frequency to maintain a maximum matching to the resonance frequency of the RF electrode system are obtained by means of the feedback system to the stable oscillator. The feedback system relies on measured values obtained by a load phase sensor monitoring the output of the final RF power amplifier.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: July 9, 2002
    Assignee: Gems Pet Systems AB
    Inventor: Jan Olof Bergström
  • Patent number: 6407704
    Abstract: A patch antenna's resonators are supported by a non-conductive frame. The frame supports the resonators without making holes in the resonators and thereby avoids the problem of creating unwanted electric field polarizations. Additionally, the frame grasps the resonators in areas of low current density and thereby avoids creating additional disturbances in the radiation pattern. In one embodiment of the invention, the frame includes a perimeter lip that snaps over the edges of the feedboard and thereby attaches the frame to the feedboard.
    Type: Grant
    Filed: October 22, 1999
    Date of Patent: June 18, 2002
    Assignee: Lucent Technologies Inc.
    Inventors: John Philip Franey, Keith V. Guinn, Louis Thomas Manzione, Ming-Ju Tsai
  • Patent number: 6404399
    Abstract: A radar antenna with a parabolic reflector having a combined polarization twist reflecting unit and a plane reflector that reflects and transmits radio waves according to their polarized direction and with the plane reflector disposed outside. The plane reflector is integral with the case of the antenna and is disposed at a position that is approximately half of the distance from the parabolic reflector to the focal point of the parabolic reflector. Additionally, a primary radiator is disposed at a center position of the parabolic reflector and at a distance for the plane reflector that is approximately a distance from the plane reflector to the focal point of the plane reflector.
    Type: Grant
    Filed: July 11, 2000
    Date of Patent: June 11, 2002
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Shigeki Morita