1
William Pepper Jr: Touch panel system and method. Peptek Incorporated, Jim Zegeer, October 6, 1981: US04293734 (326 worldwide citation)

A general method is disclosed for accurately determining the location or position of a source or sink of electric current on the surface of a resistance element or impedance layer. Touch panels are described that detect the presence of a user's finger on such surface, and produce output signals corr ...


2
Bernard O Geaghan, Robert S Moshrefzadeh, Craig A Cordeiro, Edward S Hagermoser, James J Hart, Paul M Hatin, Karl P Hauck, Richard A Peterson Jr, Stephen C Schulz, Gordon F Taylor: Touch panel system and method for distinguishing multiple touch inputs. 3M Innovative Properties Company, August 7, 2007: US07254775 (213 worldwide citation)

Touch panel systems and methods are disclosed that can distinguish temporally overlapping touch inputs from single touch inputs so that valid touch position coordinates can be determined. Touch panel systems and methods of the present invention can distinguish overlapping touches by comparing signal ...


3
Herman R Person, Thomas L Veik, Scott D Zwick, Joseph F Hesse: Touch panel system and method for using same. Dale Electronics, Zarley McKee Thomte Voorhees & Sease, March 7, 1989: US04811004 (157 worldwide citation)

The touch panel system of the present invention is adapted for use with a rectangular screen for locating an object placed adjacent the face of the screen. The touch panel includes first and second sources of directional beams, first and second movable beam deflectors positioned in spaced relation t ...


4
William Pepper Jr: Touch panel system and method. Peptek Incorporated, Jim Zegeer, October 12, 1982: US04353552 (118 worldwide citation)

A general method is disclosed for accurately determining the location or position of a source or sink of electric current on the surface of a resistance element or impedance layer. Touch panels are described that detect the presence of a user's finger on such surface, and produce output signals corr ...


5
Bernard O Geaghan, Robert S Moshrefzadeh, Craig A Cordeiro, Edward S Hagermoser, James J Hart, Paul M Hatin, Karl P Hauck, Richard A Peterson, Stephen C Schulz, Gordon F Taylor: Touch panel system and method for distinguishing multiple touch inputs. Office of Intellectual Property Counsel, April 3, 2003: US20030063073-A1 (1 worldwide citation)

Touch panel systems and methods are disclosed that can distinguish temporally overlapping touch inputs from single touch inputs so that valid touch position coordinates can be determined. Touch panel systems and methods of the present invention can distinguish overlapping touches by comparing signal ...


6
Shinichi Yoshida, Akira Nishioka: Touch panel controller, touch panel system and method of operating touch panel system. SHARP KABUSHIKI KAISHA, Birch Stewart Kolasch & Birch, September 8, 2015: US09128546

A touch panel system in which power consumption is reduced and detection sensitivity is enhanced, a controller for the touch panel system, and a method of operating the system. Touch panel system includes status detecting portion having status signal generating portions generating a status signal in ...


7
Moshrefzadeh Robert S, Peterson Richard A Jr, Taylor Gordon F, Cordeiro Craig A, Hagermoser Edward S, Hatin Paul M, Geaghan Bernard O, Hauck Karl P, Schulz Stephen C, Hart James J: Touch panel system and method for distinguishing multiple touch inputs. 3m Innovative Properties Co, October 10, 2007: EP1843244-A2

Touch panel systems and methods are disclosed that can distinguish temporally overlapping touch inputs from single touch inputs so that valid touch position coordinates can be determined. Touch panel systems and methods of the present invention can distinguish overlapping touches by comparing signal ...


8
Do Hwan Oh: Mixer for use in touch panel system and method for processing signals in the mixer. MELFAS, McKenna Long & Aldridge, June 30, 2015: US09069406

A mixer of a touch panel system includes a first switch configured to switch a sensing signal in accordance with a reference signal; a second switch configured to switch the sensing signal in accordance with a phase-inverted reference signal from the reference signal. Further, the mixer of the touch ...


9
Pepper William Jr: Touch panel system and method.. Peptek, February 25, 1981: EP0024090-A1

General method for determining the two-dimensional location (18) of a source or sink of electric current on the surface of a resistance element (Fig. 3, 4, 9). Boundary terminations for resistance elements are described that permit location in two axes simultaneously; the same boundary terminations ...


10
Person Herman R, Veik Thomas L, Zwick Scott D, Hesse Joseph F: Panneau tactile et methode dutilisation de ce panneau, Touch panel system and method for using same. Person Herman R, Veik Thomas L, Zwick Scott D, Dale Electronics, Hesse Joseph F, November 19, 1991: CA1292297

ABSTRACT OF THE DISCLOSURE The touch panel system of the present invention comprisestwo light emitters at the upper opposite corners of the cathodescreen. The light emitters each emit a light beam which is deflectedin an annularly sweeping pattern across the face of the screen. When the beams are in ...