Patents by Inventor Carla J. Miner

Carla J. Miner has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Displays controlled by MIM switches of small capacitance
    Patent number: 4413883
    Abstract: A matrix multiplexed field effect display has switch devices at matrix crosspoints to provide a turn-on threshold for the field effect material. The switch devices are thin film metal-insulator-metal (MIM) switches. The display is operated at low current so that the MIM switches, which may be deposited on glass, do not degrade rapidly in use.
    Type: Grant
    Filed: December 3, 1980
    Date of Patent: November 8, 1983
    Assignee: Northern Telecom Limited
    Inventors: David R. Baraff, Nur M. Serinken, Richard W. Streater, Carla J. Miner, Robert J. Boynton, Blair K. MacLaurin, William D. Westwood
  • Addressing scheme for switch controlled liquid crystal displays
    Patent number: 4404555
    Abstract: In known thin film switch controlled matrix multiplexed liquid crystal displays (LCD's), alternating pulses of an applied waveform are of reverse polarity. If the transient behaviour characteristic of the switches controlling the LCD is not saturated during application of a selection pulse, the selected pels may experience a relatively low RMS voltage in the ON state. To ensure that selected pels are fully turned on, the addressing waveform proposed consists of a series of pulses of one polarity followed by a corresponding series of pulses of opposite polarity. Transient effects are minimized by applying the series of unipolar pulses and the pels are consequently subjected to a high RMS voltage. However, net DC current through the LC is still zero as required in order to guard against irreversible electrochemical degradation of the LC. The higher RMS voltage can be used to improve contrast ratio or to increase the level of multiplexing.
    Type: Grant
    Filed: June 9, 1981
    Date of Patent: September 13, 1983
    Assignee: Northern Telecom Limited
    Inventors: John R. Long, Carla J. Miner, Richard W. Streater, David R. Baraff
  • LCDs (Liquid crystal displays) controlled by thin film diode switches
    Patent number: 4251136
    Abstract: A matrix multiplexed display cell has thin film switch devices at matrix crosspoints to provide a turn-on threshold for electrooptic liquid used in the cell. Each of the switch devices has two parallel branches of diodes, the diodes in one branch being of reverse polarity to those in the other. The cell is operated at low current so that the switch devices, which are deposited on glass, do not degrade rapidly in use.
    Type: Grant
    Filed: July 25, 1979
    Date of Patent: February 17, 1981
    Assignee: Northern Telecom Limited
    Inventors: Carla J. Miner, David R. Baraff, Nur M. Serinken, Richard W. Streater, Vladimir F. Drobny
  • LCDs (Liquid crystal displays) controlled by thin film diode switches
    Patent number: 4223308
    Abstract: A matrix multiplexed display cell has thin film switch devices at matrix crosspoints to provide a turn-on threshold for the electro-optic liquid used in the cell. Each of the switch devices is a back-to-back pair of diodes. The cell is operated at low current so that the switch devices, which are deposited on glass, do not degrade rapidly in use.
    Type: Grant
    Filed: July 25, 1979
    Date of Patent: September 16, 1980
    Assignee: Northern Telecom Limited
    Inventors: David R. Baraff, Nur M. Serinken, Carla J. Miner, Richard W. Streater, Vladimir F. Drobny