Method and operating device for operating an electronic device via a touchscreen

Patent metadata

Field	Value
Publication number	US-2016188113-A1
Application number	US-201414910925-A
Country	US
Kind code	A1
Filing date	Jul 31, 2014
Priority date	Aug 9, 2013
Publication date	Jun 30, 2016
Grant date	—

Abstract

A method for operating an electronic device via a touchscreen, wherein the operation is carried out on the basis of a position signal generated by an input movement touching the touchscreen, includes carrying out a filtering of the position signal in such a way that at least one movement component of the input movement is at least partially suppressed, wherein a filtered position signal is obtained, and actuating the electronic device on the basis of this filtered position signal.

First claim

1 . A method for operating an electronic device via a touchscreen, particularly in a vehicle, wherein the operation is carried out on the basis of a position signal generated by an input movement touching the touchscreen, wherein the method has the following steps:
carrying out a filtering of the position signal in such a way that at least one movement component of the input movement is at least partially suppressed, wherein a filtered position signal is obtained; and actuating the electronic device on the basis of this filtered position signal.

2 . The method as claimed in claim 1 , wherein the filtering of the position signal is carried out in such a way that at least one movement component of the input movement is at least partially suppressed by means of low-pass filtering of the position signal, wherein the filter constant of the low-pass filter is modified depending on the position signal and/or depending on the signal of an acceleration sensor.

3 . The method as claimed in claim 1 , wherein the filter constant of the low-pass filter is adapted depending on the result of an autocorrelation of the position signal or a cross-correlation of the position signal and a variable based on the acceleration sensor signal.

4 . The method as claimed in claim 1 , wherein the at least one movement component of the input movement comprises an irregular movement of the hand of an operating person extended to perform the input movement.

5 . The method as claimed in claim 1 , wherein
the at least one movement component of the input movement comprises vibration-induced relative movements, in particular due to vibrations of the vehicle, between the hand of an operating person extended to perform the input movement and the touchscreen.

6 . The method according to claim 1 , wherein
the at least one movement component of the input movement comprises movements due to steering or braking operations of a vehicle and/or due to unevenness of the road surface.

7 . The method as claimed in claim 1 , wherein the position signal has three location coordinates (x, y, z) relative to the touchscreen, wherein the position signal is filtered for all of these three location coordinates.

8 . The method as claimed in claim 1 , wherein the at least one movement component is determined on the basis of an autocorrelation of the position signal.

9 . The method as claimed in claim 1 , wherein the at least one movement component is determined using at least one acceleration sensor.

10 . The method as claimed in claim 1 , wherein the position signal is frozen if a position change determined during the input movement or an acceleration determined during the input movement exceeds a predefined threshold value.

11 . The method as claimed in claim 1 , wherein visual and/or haptic feedback is conveyed to a person carrying out the input movement in response to an input movement touching the touch screen.

12 . An operating unit for operating an electronic device via a touchscreen, particularly in a vehicle, wherein the operation is performed on the basis of a position signal generated by an input movement touching the touchscreen, wherein the operating unit is configured to carry out the method as claimed in claim 1 .

Assignees

• Ford Global Tech Llc

Inventors

• Alpman Erik
• Arndt Christoph
• Busch Rainer
• Christen Urs

Classifications

• G06F3/04817

  using icons (graphical or visual programming using iconic symbols G06F8/34) · CPC title

• G06F3/017

  Gesture based interaction, e.g. based on a set of recognized hand gestures (interaction based on gestures traced on a digitiser G06F3/04883) · CPC title

• G06F3/0418 Primary

  for error correction or compensation, e.g. based on parallax, calibration or alignment · CPC title

• G06F3/04182

  Filtering of noise external to the device and not generated by digitiser components · CPC title

• G06F3/0488 Primary

  using a touch-screen or digitiser, e.g. input of commands through traced gestures · CPC title