Patents by Inventor Ronald L. Hansen

Ronald L. Hansen 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: 10302027
    Abstract: Power machines, control systems and methods that adjust engine speed based upon actuation of user input controls that control other power machine functions such as travel functions and lift arm functions. By controlling engine speed at least partially in response to the user input devices controlling other machine functions, more optimal engine speeds can be achieved.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: May 28, 2019
    Assignee: Clark Equipment Company
    Inventors: Ronald S. Hansen, Christopher L. Young
  • Patent number: 8952980
    Abstract: Systems and methods for transforming and displaying a video signal on a display are provided with any number of features. In some embodiments, system is configured to receive a first set of input signals in a controller. The system can determine in the controller a first set of luminances and colors that would be produced on a first display with the first set of input signals. The system can then determine in the controller a second set of luminances that would produce the first set of colors on a second display. The system can then generate in the controller a second set of input signals that would produce the second set of luminances on the second display, and can output the second set of input signals to the second display.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: February 10, 2015
    Assignee: GSI Group, Inc.
    Inventors: Ronald L. Hansen, Jerome Truppa, Amir Baghdadi
  • Publication number: 20120208134
    Abstract: Non-lethal payloads may be customized for particular uses and desired visual and audible incapacitation based upon the selection of igniter/activators and illuminants used with the non-lethal payloads. Non-lethal payloads employing high flame temperature igniter/activators and illuminants of powder metals, powdered metals combined with oxidizers, and powdered metals combined with heat-activated chromophores may produce improved “flashes” and “bangs” for non-lethal payloads used with diversionary or other devices. Such devices and methods of producing illuminance and noise are also disclosed.
    Type: Application
    Filed: April 27, 2012
    Publication date: August 16, 2012
    Applicant: ALLIANT TECHSYSTEMS INC.
    Inventors: Reed J. Blau, Lisa S. Liu, Ronald L. Hansen, Richard Ames
  • Patent number: 8172966
    Abstract: Non-lethal payloads may be customized for particular uses and desired visual and audible incapacitation based upon the selection of igniter/activators and illuminants used with the non-lethal payloads. Non-lethal payloads employing high flame temperature igniter/activators and illuminants of powder metals, powdered metals combined with oxidizers, and powdered metals combined with heat-activated chromophores may produce improved “flashes” and “bangs” for non-lethal payloads used with diversionary or other devices. Such devices and methods of producing illuminance and noise are also disclosed.
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: May 8, 2012
    Assignee: Alliant Techsystems Inc.
    Inventors: Reed J. Blau, Lisa S. Liu, Ronald L. Hansen, Richard G. Ames
  • Publication number: 20120032971
    Abstract: Systems and methods for transforming and displaying a video signal on a display are provided with any number of features. In some embodiments, system is configured to receive a first set of input signals in a controller. The system can determine in the controller a first set of luminances and colors that would be produced on a first display with the first set of input signals. The system can then determine in the controller a second set of luminances that would produce the first set of colors on a second display. The system can then generate in the controller a second set of input signals that would produce the second set of luminances on the second display, and can output the second set of input signals to the second display.
    Type: Application
    Filed: March 18, 2011
    Publication date: February 9, 2012
    Inventors: Ronald L. Hansen, Jerome Truppa, Amir Baghdadi
  • Publication number: 20110168305
    Abstract: Non-lethal payloads may be customized for particular uses and desired visual and audible incapacitation based upon the selection of igniter/activators and illuminants used with the non-lethal payloads. Non-lethal payloads employing high flame temperature igniter/activators and illuminants of powder metals, powdered metals combined with oxidizers, and powdered metals combined with heat-activated chromophores may produce improved “flashes” and “bangs” for non-lethal payloads used with diversionary or other devices. Such devices and methods of producing illuminance and noise are also disclosed.
    Type: Application
    Filed: March 7, 2006
    Publication date: July 14, 2011
    Inventors: Reed J. Blau, Lisa S. Liu, Ronald L. Hansen, Richard G. Ames
  • Patent number: 7403175
    Abstract: Methods for compensating for brightness variations in a field emission device. In one embodiment, a method and system are described for measuring the relative brightness of rows of a field emission display (FED) device, storing information representing the measured brightness into a correction table and using the correction table to provide uniform row brightness in the display by adjusting row voltages and/or row on-time periods. A special measurement process is described for providing accurate current measurements on the rows. This embodiment compensates for brightness variations of the rows, e.g., for rows near the spacer walls. In another embodiment, a periodic signal, e.g., a high frequency noise signal, is added to the row on-time pulse in order to camouflage brightness variations in the rows near the spacer walls. In another embodiment, the area under the row on-time pulse is adjusted to provide row-by-row brightness compensation based on correction values stored in a memory resident correction table.
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: July 22, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: James C. Dunphy, William Cummings, Christopher J. Spindt, Ronald L. Hansen, Jun (Gordon) Liu, Lee Cressi, Colin Stanners
  • Patent number: 7158102
    Abstract: A field emission display (FED) having a correction system with a correction coefficient derived from emission current is presented. Within one embodiment in accordance with the present invention, a field emission display has an anode at the faceplate and a focus structure. The anode potential is held at ground while the focus structure potential is held between, but is not limited to, 40 and 50 volts. The current flowing to the focus structure is measured and used as the basis for the correction coefficient for the field emission display.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: January 2, 2007
    Assignees: Candescent Technologies Corporation, Sony Corporation
    Inventors: Ronald L. Hansen, James C. Dunphy, Christopher J. Spindt, James M. Cleeves, Jerome M. Truppa, Gregory M. Fink, Yukinobu Iguchi
  • Patent number: 6853135
    Abstract: An apparatus for removing contaminants from a display device is disclosed. In one embodiment, an auxiliary chamber is adapted to be coupled to a surface of a display device such that contaminants within the display device can travel from the display device into the auxiliary chamber. A getter is disposed in the auxiliary chamber. The getter is adapted to capture the contaminants once the contaminants travel from the display device into the auxiliary chamber. In other embodiments, the getter is disposed in the border region surrounding the active area of the display.
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: February 8, 2005
    Assignees: Candescent Technologies Corporation, Candescent Intellectual Property Services, Inc.
    Inventors: William C. Fritz, Igor L. Maslennikov, Robert M. Duboc, Jr., Theodore S. Fahlen, George B. Hopple, Christopher J. Curtin, Colin D. Stanners, Petre H. Vatahov, Christopher J. Spindt, Ronald L. Hansen
  • Patent number: 6822628
    Abstract: Methods for compensating for brightness variations in a field emission device. In one embodiment, a method and system are described for measuring the relative brightness of rows of a field emission display (FED) device, storing information representing the measured brightness into a correction table and using the correction table to provide uniform row brightness in the display by adjusting row voltages and/or row on-time periods. A special measurement process is described for providing accurate current measurements on the rows. This embodiment compensates for brightness variations of the rows, e.g., for rows near the spacer walls. In another embodiment, a periodic signal, e.g., a high frequency noise signal, is added to the row on-time pulse in order to camouflage brightness variations in the rows near the spacer walls. In another embodiment, the area under the row on-time pulse is adjusted to provide row-by-row brightness compensation based on correction values stored in a memory resident correction table.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: November 23, 2004
    Assignees: Candescent Intellectual Property Services, Inc., Candescent Technologies Corporation
    Inventors: James C. Dunphy, William Cummings, Christopher J. Spindt, Ronald L. Hansen, Jun (Gordon) Liu, Lee Cressi, Colin Stanners
  • Patent number: 6771027
    Abstract: The present invention is a system and method for monitoring FED performance and compensating for adverse impacts associated with display emission generation. A present invention FED adjustment system and method is capable of providing real time emission characteristic monitoring during retrace periods. In one present emission compensation method a feedback type process is utilized that drives a constant level on dummy pixels not included in the active viewing area and compares the results (e.g., the current that is associated with the emission) to an expected certain predetermined amount. If the current is too high then the voltage supply is reduced to the drive level or if the current is to low the voltage is increased. A driver voltage is supplied and an image is presented in an active pixel region during an active presentation time. Emissions are produced in a test pixel during a nonactive presentation and a determination is made if the emissions in the test area are accurate.
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: August 3, 2004
    Assignee: Candescent Technologies Corporation
    Inventor: Ronald L. Hansen
  • Publication number: 20040108976
    Abstract: The present invention is a system and method for monitoring FED performance and compensating for adverse impacts associated with display emission generation. A present invention FED adjustment system and method is capable of providing real time emission characteristic monitoring during retrace periods. In one present emission compensation method a feedback type process is utilized that drives a constant level on dummy pixels not included in the active viewing area and compares the results (e.g., the current that is associated with the emission) to an expected certain predetermined amount. If the current is too high then the voltage supply is reduced to the drive level or if the current is to low the voltage is increased. A driver voltage is supplied and an image is presented in an active pixel region during an active presentation time. Emissions are produced in a test pixel during a nonactive presentation and a determination is made if the emissions in the test area are accurate.
    Type: Application
    Filed: November 21, 2002
    Publication date: June 10, 2004
    Inventor: Ronald L. Hansen
  • Publication number: 20030201954
    Abstract: A field emission display (FED) having a correction system with a correction coefficient derived from emission current is presented. Within one embodiment in accordance with the present invention, a field emission display has an anode at the faceplate and a focus structure. The anode potential is held at ground while the focus structure potential is held between, but is not limited to, 40 and 50 volts. The current flowing to the focus structure is measured and used as the basis for the correction coefficient for the field emission display.
    Type: Application
    Filed: April 26, 2002
    Publication date: October 30, 2003
    Inventors: Ronald L. Hansen, James C. Dunphy, Christopher J. Spindt, James M. Cleeves, Jerome M. Truppa, Gregory M. Fink, Yukinobu Iguchi
  • Patent number: 6541912
    Abstract: An apparatus for removing contaminants from a display device is disclosed. In one embodiment, an auxiliary chamber is adapted to be coupled to a surface of a display device such that contaminants within the display device can travel from the display device into the auxiliary chamber. A getter is disposed in the auxiliary chamber. The getter is adapted to capture the contaminants once the contaminants travel from the display device into the auxiliary chamber. In other embodiments, the getter is disposed in the border region surrounding the active area of the display.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: April 1, 2003
    Assignee: Candescent Technologies Corporation
    Inventors: William C. Fritz, Igor L. Maslennikov, Robert M. Duboc, Jr., Theodore S. Fahlen, George B. Hopple, Christopher J. Curtin, Colin D. Stanners, Petre H. Vatahov, Christopher J. Spindt, Ronald L. Hansen
  • Publication number: 20030058196
    Abstract: The present invention provides a method and circuit to efficiently change a present column voltage output level to a desired next column voltage output level using digital control circuitry. In one embodiment, the present column voltage output level at an intersection of an active row line and a column line is stored. In substantially the same time, a desired next column voltage level is received for the next row data line of the same column line. The difference between the present column voltage and the desired next voltage is determined and digitized. The digitized voltage difference is translated to a clock time necessary to apply a high current to column driver to attain the desired next column voltage level. The circuit providing high current is active only for the clock time. In this way, bias current and power dissipation are maintained at a low level during quiescent conditions.
    Type: Application
    Filed: September 26, 2001
    Publication date: March 27, 2003
    Inventors: Ronald L. Hansen, Jay Friedman
  • Publication number: 20030011537
    Abstract: Methods for compensating for brightness variations in a field emission device. In one embodiment, a method and system are described for measuring the relative brightness of rows of a field emission display (FED) device, storing information representing the measured brightness into a correction table and using the correction table to provide uniform row brightness in the display by adjusting row voltages and/or row on-time periods. A special measurement process is described for providing accurate current measurements on the rows. This embodiment compensates for brightness variations of the rows, e.g., for rows near the spacer walls. In another embodiment, a periodic signal, e.g., a high frequency noise signal, is added to the row on-time pulse in order to camouflage brightness variations in the rows near the spacer walls. In another embodiment, the area under the row on-time pulse is adjusted to provide row-by-row brightness compensation based on correction values stored in a memory resident correction table.
    Type: Application
    Filed: June 28, 2001
    Publication date: January 16, 2003
    Inventors: James C. Dunphy, William Cummings, Christopher J. Spindt, Ronald L. Hansen, Jun Liu, Lee Cressi, Colin Stanners
  • Patent number: 6462484
    Abstract: A circuit and method for turning-on and turning-off elements of an field emission display (FED) device to protect against emitter electrode and gate electrode degradation. The circuit includes control logic having a sequencer which in one embodiment can be realized using a state machine. Upon power-on, the control logic sends an enable signal to a high voltage power supply that supplies voltage to the anode electrode. At this time a low voltage power supply and driving circuitry are disabled. Upon receiving a confirmation signal from the high voltage power supply, the control logic enables the low voltage power supply which supplies voltage to the driving circuitry. Upon receiving a confirmation signal from the low voltage power supply, or optionally after expiration of a predetermined time period, the control logic then enables the driving circuitry which drives the gate electrodes and the emitter electrodes which make up the rows and columns of the FED device.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: October 8, 2002
    Assignee: Candescent Intellectual Property Services
    Inventors: James C. Dunphy, Ronald L. Hansen, Brian E. Lindberg, Jerome M. Truppa, Donald J. Elloway, Duke K. Amaniampong
  • Patent number: 6448949
    Abstract: A field emission display having an improved operational life. In one embodiment of the present invention, the field emission display comprises a plurality of row lines, a plurality of column lines, and a plurality of electron emissive elements disposed at intersections of the plurality of row lines and column lines, a column driver circuit, and a row driver circuit. The column driver circuit is coupled to drive column voltage signals over the plurality of column lines; and, the row driver circuit is coupled to activate and deactivate the plurality of row lines with row voltage signals. Significantly, according to the present invention, operational life of the field emission display is substantially extended when the electron emissive elements are intermittently reverse-biased by the column voltage signals and the row voltage signals. In another embodiment, the row driver circuit is responsive to a SLEEP signal.
    Type: Grant
    Filed: June 5, 2000
    Date of Patent: September 10, 2002
    Assignee: Candescent Technologies Corporation
    Inventors: Igor L. Maslennikov, Dennis M. Urbon, Christopher J. Spindt, Ronald L. Hansen, Christopher J. Curtin
  • Patent number: 6433473
    Abstract: A structure and method for forming an column electrode for a field emission display device wherein the column electrode is disposed beneath the field emitters and the row electrode. In one embodiment, the present invention comprises depositing a resistor layer over portions of a column electrode. Next, an inter-metal dielectric layer is deposited over the column electrode. In the present embodiment, the inter-metal dielectric layer is deposited over portions of the resistor layer and over pad areas of the column electrode. After the deposition of the inter-metal dielectric layer, the column electrode is subjected to an anodization process such that exposed regions of the column electrode are anodized. In so doing, the present invention provides a column electrode structure which is resistant to column to row electrode shorts and which is protected from subsequent processing steps.
    Type: Grant
    Filed: February 25, 1999
    Date of Patent: August 13, 2002
    Assignee: Candescent Intellectual Property Services, Inc.
    Inventors: Kishore K. Chakravorty, Fariborz Nadi, Christopher J. Spindt, Ronald L. Hansen, Colin D. Stanners
  • Patent number: 6429836
    Abstract: A circuit and method for displaying both interlaced and non-interlaced video information on a flat panel display. The flat panel display is a field emission display (FED) screen. Within the FED screen, a matrix of rows and columns is provided and emitters are situated within each row-column intersection. Rows are activated (e.g., enabled) sequentially and separate gray scale information (voltages) is presented to the columns. When the proper voltage is applied across the cathode and anode of the emitters, they release electrons toward a phosphor spot, e.g., red, green, blue, causing an illumination point. The present invention includes circuitry for enabling the rows in one of two different modes. In a first mode, the rows are enabled sequentially with each pulse width of the sufficient duration (“long pulse”) to perceptively energize the row for displaying image data thereon. In this mode, the rows are enabled for the display of non-interlaced video information.
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: August 6, 2002
    Assignee: Candescent Intellectual Property Services, Inc.
    Inventor: Ronald L. Hansen