Patent
Electromagnetic touch sensor input system in a cathode ray tube display device
Reads0
Chats0
TLDR
In this article, a cathode ray tube display device has conductive plates mounted adjacent the four sides of the CRT faceplate, which are coupled to differential circuits so that normally the noise signals generated in the plates cancel.Abstract:
A cathode ray tube display device has conductive plates mounted adjacent the four sides of the CRT faceplate. These plates are positioned to sense electromagnetic noise radiation generated by the CRT. The plates are coupled to differential circuits so that normally the noise signals generated in the plates cancel. However when a finger or other object is placed at or near the CRT faceplate, the noise radiation field is disturbed, and the changed signals generated in the plates are sensed by the circuits to provide output signals indicative of the coordinate position of the object at the faceplate. The plates are preferably mounted in the front bezel of the display cabinet.read more
Citations
More filters
Patent
Gestures for touch sensitive input devices
Steve Hotelling,Joshua A. Strickon,Brian Q. Huppi,Imran Chaudhri,Greg Christie,Bas Ording,Duncan Robert Kerr,Jonathan P. Ive +7 more
TL;DR: In this article, the authors described a system for processing touch inputs with respect to a multipoint sensing device and identifying at least one multipoint gesture based on the data from the multi-point sensing device.
Patent
Method and apparatus for integrating manual input
TL;DR: In this paper, a simple proximity transduction circuit is placed under each electrode to maximize the signal-to-noise ratio and to reduce wiring complexity, and segmentation processing of each proximity image constructs a group of electrodes corresponding to each distinguishable contacts and extracts shape, position and surface proximity features for each group.
Patent
Mode-based graphical user interfaces for touch sensitive input devices
Steve Hotelling,Joshua A. Strickon,Brian Q. Huppi,Duncan Robert Kerr,Imran Chaudhri,Greg Christie,Jonathan P. Ive,Bas Ording +7 more
TL;DR: In this article, a user interface method for detecting a touch and then determining user interface mode when a touch is detected is presented. And the method further includes activating one or more GUI elements based on the user interface modes and in response to the detected touch.
Patent
Proximity detector in handheld device
Steve Hotelling,Brian Q. Huppi,Joshua A. Strickon,Duncan Robert Kerr,Bas Ording,Imran Chaudhri,Greg Christie,Jonathan P. Ive,Peter J. Kennedy,Anthony M. Fadell,Jeffrey L. Robbin +10 more
TL;DR: Proximity based systems and methods that are implemented on an electronic device are disclosed in this article, where the method includes sensing an object spaced away and in close proximity to the electronic device.
Patent
Touch screen liquid crystal display
Steven Porter Hotelling,Wei Chen,Christoph Horst Krah,John Greer Elias,Wei Hsin Yao,John Z. Zhong,Andrew Hodge,Brian R. Land,Willem den Boer +8 more
TL;DR: In this paper, liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry are discussed. But the integration may take a variety of forms.
References
More filters
Patent
Display device having unpatterned touch detection
Henry H. Ng,Bela R. Hatvany +1 more
TL;DR: In this paper, a display device locates a touch anywhere on a conductive display faceplate by measuring electrical impedances of the faceplate conductive coating, where the impedances are at electrodes located on different edges of faceplate.
Patent
Touch pad and display tube circuitry
TL;DR: Improved touch pad and display tube circuitry including a touch pad circuit, a tube circuit, and a scan voltage pulse drive circuit for generating scan voltage pulses applied to the touch pad.
Patent
Touch display to digital encoding system
Bozidar Janko,Aris Silzars +1 more
TL;DR: In this paper, a system for inputting data into a display device by touch-sensitive contact areas disposed adjacent the display device and including state-of-the-art electronic recognition circuitry associated with the contact areas for synchronously converting the data to discrete elements of information is presented.
Patent
Optical gating scheme for display touch control
TL;DR: In this article, a touch-operated display for a CRT faceplate includes a plurality of optical gates for energizing light-emitting diodes in response to generation of the CRT raster thus eliminating the need for external switching of the beam generating means to produce the grid of crossing light paths.
Patent
Noise responsive data input apparatus and method
TL;DR: In this article, a data input device for use in an electrically noisy environment incorporates a plurality of conductive strips, arranged in rows and columns, mounted on a transparent body in front of a display device.