Patents by Inventor James S. Bartling

James S. Bartling 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).

  • Touch sense determined by characterizing impedance changes in a transmission line
    Patent number: 8972214
    Abstract: A touch panel or screen has a serpentine transmission line fabricated on a substrate, e.g., printed circuit board, LCD, plasma or LED screen, etc., and has a constant impedance. Touches to the touch panel will cause changes of impedance of the transmission line at the locations of the touches. Time domain reflectometry (TDR) is used for determining the locations of the changes of impedance of the transmission line by accurately measuring the return pulse times at the source of a plurality of pulses, and then converting the return pulse times to X-Y coordinates of the touch panel or screen.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: March 3, 2015
    Assignee: Microchip Technology Incorporated
    Inventors: James S. Bartling, Dennis P. Lehman
  • Touch sense using time domain reflectometry
    Patent number: 8599155
    Abstract: A touch panel or screen has a serpentine transmission line fabricated on a substrate, e.g., printed circuit board, LCD, plasma or LED screen, etc., and has a constant impedance. A touch to the touch panel will cause a change of impedance of the transmission line at the location of the touch. Time domain reflectometry (TDR) is used for determining the location of the change of impedance of the transmission line by accurately measuring the return pulse time at the source of the initial pulse, and then converting the return pulse time to X-Y coordinates of the touch panel or screen.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: December 3, 2013
    Assignee: Microchip Technology Incorporated
    Inventors: James S. Bartling, Padmaraja Yedamale, Jerry Hanauer
  • Dual mode boost regulator
    Patent number: 8432140
    Abstract: An integrated circuit boost regulator design providing selection of either a low power on-chip power component boost regulator circuit or a high power off-chip power component boost regulator circuit using the same integrated circuit device.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: April 30, 2013
    Assignee: Microchip Technology Incorporated
    Inventors: Neil Deutscher, Jinhui Chen, James S. Bartling
  • TOUCH SENSE USING TIME DOMAIN REFLECTOMETRY
    Publication number: 20110267287
    Abstract: A touch panel or screen has a serpentine transmission line fabricated on a substrate, e.g., printed circuit board, LCD, plasma or LED screen, etc., and has a constant impedance. A touch to the touch panel will cause a change of impedance of the transmission line at the location of the touch. Time domain reflectometry (TDR) is used for determining the location of the change of impedance of the transmission line by accurately measuring the return pulse time at the source of the initial pulse, and then converting the return pulse time to X-Y coordinates of the touch panel or screen.
    Type: Application
    Filed: October 27, 2010
    Publication date: November 3, 2011
    Inventors: James S. Bartling, Padmaraja Yedamale, Jerry Hanauer