Magnet, Electromagnet, Or Relay Controlled From Central Office Patents (Class 379/152)
  • Patent number: 6501525
    Abstract: A method for simultaneously forming a flat display panel and bonding to a printed circuit board is disclosed in which a silicon wafer is first supplied and then coated with an alignment layer, a multiplicity of spacers are then mounted to the wafer before it is severed into a multiplicity of dies. A frame seal is then applied to the periphery of the die, while a multiplicity of metal leads is formed on the die for electrical communication with a multiplicity of thin film transistors. A glass plate is then assembled to the silicon substrate by the frame seal, while simultaneously bonded to a printed circuit board in a bonder apparatus under pressure by utilizing a conductive material such as silver paste, an anisotropic conductive film or an isotropic conductive adhesive.
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: December 31, 2002
    Assignee: Industrial Technology Research Institute
    Inventors: Yuan-Chang Huang, Tai-Hong Chen
  • Patent number: 6476895
    Abstract: A liquid crystal display includes an image display part including a gate line; a data line; a switching device connected electrically to the data and gate lines; an organic insulating layer having a contact hole and covering the switching device; and a pixel electrode on the organic insulating layer connected to the electrode of the switching device through the contact hole. A peripheral part surrounding the image display part includes wires and devices having gate and data pad links and electrostatic discharge devices, and a pattern isolated from the wires and devices, the pattern having a part that is exposed. An alignment layer covers the exposed part of the pattern.
    Type: Grant
    Filed: September 1, 2000
    Date of Patent: November 5, 2002
    Assignee: LG. Philips LCD Co., Ltd.
    Inventors: Dong-Young Kwak, Ki-Tae Kim
  • Patent number: 5907606
    Abstract: A telephone-line powered coin telephone chassis which operates on as little as 23 milliamperes of off-hook loop current and which shuts down on-hook. Capacitors power a microprocessor for a short time during on-hook coin control immediately after a phone call. The chassis is designed to operate with the WESROC.RTM. coin telephone monitoring system and has built-in circuitry which makes a direct communications link between a remote unit of the WESROC system and the chassis. Connectors are built into the chassis for electrically connecting the chassis to the WESROC remote unit and to coin telephone components external to the chassis. Built into the chassis is circuitry for preventing tone fraud and pin fraud, detecting the presence of the handset, a push-button line diagnostic test, an interface for a volume switch and an interface for an electronic coin chute.
    Type: Grant
    Filed: January 17, 1997
    Date of Patent: May 25, 1999
    Assignee: Independent Technologies, Inc.
    Inventors: David L. Ingalsbe, Michael A. Lynch
  • Patent number: 5787158
    Abstract: Apparatuses and methods immediately alert a telephone company or other owner/host or operator of a payphone that a vandalizing stuffing has occurred, thereby enabling it or him or her promptly to dispatch a maintenance person to the particular payphone or station to fix it. Stuffing sensing switches are advantageously mounted in a coin return mechanism, and in electromechanical payphones electrically connected to the telephone company central office over one of the existing RING and TIP wires connecting the stuffed or compromised payphone with the central office. Conventional testing techniques periodically employed in the office by the telephone company over the existing wit. installation will then sense whether a payphone has been compromised or stuffed. In electronic payphones, a payphone computer monitors the sensing switches and calls the owner/host or operator to report a problem or gives a local alarm.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: July 28, 1998
    Assignee: Sandt Technology, Ltd.
    Inventors: Salvatore Anello, Albert F. Diaz
  • Patent number: 5216707
    Abstract: Increased power to operate a paystation coin relay is derived from the tip/ring pair by means of a power boost circuit, which is controllably coupled to the tip/ring pair when the coin relay is to be fired. To fire the coin relay, a line coupling relay circuit is energized, so as to apply the tip/ring line voltage to a D.C.-to-D.C. converter, the output of which is coupled to current storage (capacitor) circuit. The output of the current storage circuit is coupled to a first switch circuit and monitored by a comparator. The first switch circuit has an output coupled in circuit with the coin relay.
    Type: Grant
    Filed: August 6, 1991
    Date of Patent: June 1, 1993
    Assignee: International Teleservice Corp.
    Inventors: Marcus K. Davenport, Richard K. Shipman, Thomas D. Young, Stephen H. Strode
  • Patent number: 5096039
    Abstract: A coin intermittent accepting device of a reservation type coin acceptor including a coin reserving passage for temporarily reserving a plurality of coin as in public telephones. The accepting device includes an electromagnetic solenoid fixed on one of parallelly spaced side plates of said coin reserving passage, parallelly spaced support arms each having one end pivotably supported on a pivot axis extending perpendicular to the longitudinal axis of a plunger of the electromagnetic solenoid and other free ends integral with an acceptance gate, and a coin stop arm having one end pivotably supported on the pivot axis and other free end providing the coin stop, at least one of the support arms and the coin stop arm being provided with longitudinal slots inclined in opposite directions, respectively, and the plunger of the electromagnetic solenoid having at the free end thereof an actuating pin extending perpendicular to the longitudinal axis of the plunger and engaging the inclined slots.
    Type: Grant
    Filed: March 4, 1991
    Date of Patent: March 17, 1992
    Assignee: Asahi Seiko Kabushiki Kaisha
    Inventor: Hiroshi Abe
  • Patent number: 4922525
    Abstract: A telephone paystation theft inhibiting circuit for detecting the grounding of the handset circuit conductors. Protection is provided for the receiver circuit conductor by means of an isolation transformer and solid state switching devices are employed to disconnect the transmitter from its associated circuit conductors when the grounding condition occurs.
    Type: Grant
    Filed: July 3, 1989
    Date of Patent: May 1, 1990
    Assignee: Palco Telecom Inc.
    Inventor: John J. Dernovsek