Plural Electromagnets Or Plural Motors Receiver Patents (Class 340/319)
  • Patent number: 8193939
    Abstract: A wireless-IC-device main component is disposed on a surface opposite to a surface for receiving signals from a reader/writer. The wireless-IC-device main component includes an insulating substrate, which is provided with a loop electrode and an electromagnetically coupled module coupled to the loop electrode. A signal from the reader/writer causes an eddy current to flow across a conductor principal plane of a metal article. The eddy current causes a magnetic field to be generated in a direction perpendicular or substantially perpendicular to the conductor principal plane of the metal article. Then, the loop electrode is coupled to the magnetic field. Thus, the wireless-IC-device main component functions as an RFID tag even for signals from the principal plane opposite to the wireless-IC-device main component. Thus, it is possible to reduce the cost of manufacturing a metal article, and to provide a wireless IC device using the metal article as a radiator.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: June 5, 2012
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Noboru Kato, Nobuo Ikemoto
  • Patent number: 7119463
    Abstract: A boot for a vibration motor of a mobile communication device is provided. The motor has a generally flat upper surface and is adapted to be installed in a mounting slot in a mobile communication device frame with the upper surface substantially parallel to an adjacent surface of said frame, and the mounting slot is at an angle with respect to a normal of the adjacent surface. The boot has an outer surface corresponding to the shape and angle of said mounting slot, an exposed surface generally parallel to said adjacent surface, and a motor-receiving slot for receiving said vibration motor, the motor-receiving slot having an axis angled from an axis of the mounting slot and generally normal with respect to the adjacent surface.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: October 10, 2006
    Assignee: Research in Motion Limited
    Inventors: Chao Chen, Robert Pillips
  • Patent number: 6121788
    Abstract: A fixture to evaluate stator production quality is placed about a stator core so as to introduce a test winding about the stator without need for hand winding. The fixture includes an inner annulus and an outer annulus each with axial conductors thereon, and top and bottom plates each with conductors thereon. The core is fitted between the inner and outer annuli, and between the top and bottom plates. The inner axial conductors and outer axial conductors are connected to one another at their lower ends through the bottom plate conductors and at their upper ends through the top plate conductors. Once testing is complete, the fixture is easily removed.
    Type: Grant
    Filed: August 13, 1998
    Date of Patent: September 19, 2000
    Assignee: General Electric Company
    Inventors: Gerald Burt Kliman, Albert Andreas Maria Esser
  • Patent number: 4405878
    Abstract: A variety of technologies have been applied in the development of a bonded rid cathode. Erosion lithography is used for making the fine-detail grid structure, combining air erosion and lithographic techniques. To obtain openings of the order of 0.001 inch (one mil) or smaller, a nozzle with a high aspect ratio exit opening is used, and the cathode grid structure is scanned. A photo resist in which the grid pattern is developed is used over the molybdenum or tungsten grid film. The metal film is removed from the grid openings by chemical etching. The photo resist over the metal grid is used as a composite mask for removing the BN insulation in the openings by erosion with Al.sub.2 O.sub.3 powder from the special nozzle on the air blast gun.
    Type: Grant
    Filed: October 1, 1981
    Date of Patent: September 20, 1983
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: David W. Oliver
  • Patent number: 4087804
    Abstract: A group of information carrying flaps are pivoted to the circumference of a drum so that, upon rotation of the drum, the flaps drop down, one by one; the flaps carry information conveying indicia, for example trouble indication during operation of a motor vehicle. The drum is rotated by a motor. To display a specific information item, that is, to permit a specific flap to drop, the flaps are formed with conductive portions which are coded at an edge, the edges being engaged by the holding springs. If the code, which preferably is a binary code, matches that of a binary number entered into one terminal of a comparator, to which the holding springs are connected, the motor is stopped, thus displaying the specific information carried on the flap having the code which matches that of the code entered into the comparator.
    Type: Grant
    Filed: October 21, 1976
    Date of Patent: May 2, 1978
    Assignee: Robert Bosch GmbH
    Inventors: Erich Zabler, Frieder Heintz, Viktor Kopernik
  • Patent number: 3979747
    Abstract: A seven character segment display assembly with each assembly including a rotatable drum carrying a character display adapted to be viewed at a window of a stationary mask. The drum includes a permanent magnet which is adapted to be attracted by the poles of a stationary wire coil wound as a bifilar center tapped winding on a core. The control circuit provides a D. C. voltage to the center tap of the coil. The circuit includes first and second invertors having outputs connected to the opposite ends of the coil. The output of the first invertor is connected to the input of the second invertor. A decoder generating logic signal pulses has an output connected to the input of the first invertor.
    Type: Grant
    Filed: June 2, 1975
    Date of Patent: September 7, 1976
    Assignee: Vernitron Corporation
    Inventor: Domenic Candida
  • Patent number: 3973726
    Abstract: In a multi-polar electromagnetically energized rotary indicator each of the pole pieces is associated with a significantly isolated flux path, which, at one end of the turning axis of the rotor part of the indicator, leads diametrically to a flux concentrator displaced 180.degree. from the pole piece in question. In a particular embodiment, this result is realized by a system of separate but mutually nested bridging parts of ferromagnetic material, each of which defines an essentially independent flux path. Other embodiments provide quasi-independent flux paths serving a similar electromagnetic function. An arrangement for sensing the response of an indicator is described.
    Type: Grant
    Filed: February 14, 1975
    Date of Patent: August 10, 1976
    Assignee: Engineered Sinterings and Plastics, Inc.
    Inventor: Donald J. Abel