Patents by Inventor David J. Asher

David J. Asher 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).

  • Patent number: 8805779
    Abstract: A classifier classifies data to identify a class of the data. Based on the identified class, at least one action to apply to the given data item is determined according to the data management policy, where the data management policy specifies a plurality of actions to apply for different classes of data items.
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: August 12, 2014
    Assignee: Longsand Limited
    Inventors: Joseph S. Ficara, Lawrence A. Stabile, David J. Asher, Mark A. Kaufman, Jacob T. LeBlanc, Jeffrey L. West, Michael R. Boucher
  • Publication number: 20140052689
    Abstract: A classifier classifies data to identify a class of the data. Based on the identified class, at least one action to apply to the given data item is determined according to the data management policy, where the data management policy specifies a plurality of actions to apply for different classes of data items.
    Type: Application
    Filed: August 14, 2012
    Publication date: February 20, 2014
    Inventors: Joseph S. Ficara, Lawrence A. Stabile, David J. Asher, Mark A. Kaufman, Jacob T. LeBlanc, Jeffrey L. West, Michael R. Boucher
  • Patent number: 5689285
    Abstract: A joystick for generation of directional control signals for computers, video games, remote controllers, and other electronic devices and instrumentation. The present invention comprises a resistive membrane sensor and an actuator for coupling directional forces onto the membrane sensor. The resistive membrane sensor is comprised of two insulating substrates with resistor rings on each substrate, conductive leads, and a pressure-variable resistor. Increasing pressure on the actuator and membrane sensor decreases the resistance of the pressure-variable resistor in series with the resistor rings. An electronic circuit measures the membrane sensor and converts the resistances into the X and Y components of the force vector acting on the joystick. An alternative membrane sensor comprises a resistive ring, a conductive ring, and a pressure-variable resistor.
    Type: Grant
    Filed: May 2, 1995
    Date of Patent: November 18, 1997
    Inventor: David J. Asher
  • Patent number: 5327160
    Abstract: A remote control system for control of an external device from a remote location is disclosed that comprises a remote controller 11 and a receive and display unit 16. The remote controller employs a touch fader 10, which the user touches to activate a visual feedback system 14, such as menus and bargraphs, in the receive and display unit. Changing the position of the touchpoint will change the selection, allowing the user to easily scroll through many selections or a hierarchy of menus. Releasing the touch fader will signal the user's acceptance of a selection. Commands are sent to control the external device according to the user selections which follow from a predefined command structure.
    Type: Grant
    Filed: November 16, 1992
    Date of Patent: July 5, 1994
    Inventor: David J. Asher
  • Patent number: 5159159
    Abstract: A touch sensor is disclosed that senses the two-dimensional position and pressure of an object 34, such as a stylus or finger, that is touching its surface. The sensor is comprised of two insulating substrates 28 and 29 which extend over the area to be sensed. A first fixed resistor 33 establishes a potential gradient over the first substrate 29 in a first, or X, position dimension. A second fixed resistor 32 establishes a potential gradient over the second substrate 28 in a second, or Y, position dimension. Between the substrates is a force variable resistor 42 that changes its local resistance under the touch point as a function of the touch pressure. Two touch controllers are also disclosed that comprise the touch sensor 50 and an electronic circuit that accurately measures the resistance values of the touch sensor. The touch controllers output three signals: the X position, the Y position, and the pressure of the touch point.
    Type: Grant
    Filed: December 7, 1990
    Date of Patent: October 27, 1992
    Inventor: David J. Asher
  • Patent number: 5008497
    Abstract: A touch controller is presented that comprises a touch sensor employing a resistive membrane, and an analog electronic circuit that accurately measures the touch position and the touch pressure on the sensor. Several variations of the electronic circuit are presented based on the principle of providing a constant current through the touch sensor, measuring the position with a differential amplifier, and measuring the touch pressure at the output of the current regulator. The touch sensors that may be used include resistive coatings such are used in overlays for computer displays, and force-sensing resistors. The circuits are simple, accurate and low-cost, yet provide measurements of the touch position that are fully decoupled from the pressure measurement, without approximation. The result is that the useful range of touch sensitivity is extended to include very light touches, without sacrificing position accuracy.
    Type: Grant
    Filed: March 22, 1990
    Date of Patent: April 16, 1991
    Inventor: David J. Asher