TOUCH SCREEN INTERFACE WITH FEEDBACK

• US 20140218317A1
• Filed: 01/21/2013
• Published: 08/07/2014
• Est. Priority Date: 02/20/2012
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Mobile Communications AB (Sony Group Corp.)
• Inventors: berg, Peter, Johansson, Magnus, Klinghult, Gunnar, Midholt, Magnus
• Granted Patent: US 9,898,119 B2
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 2203/04101 2.5D-digitiser, i.e. digitiser detecting the X/Y position of the input means, finger or stylus, also when it does not touch, but is proximate to the digitiser's interaction surface and also measures the distance of the input means within a short range in the Z direction, possibly with a separate measurement setup
• CPC Class Codes: G06F 2203/04105 Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position
• CPC Class Codes: G06F 3/016 Input arrangements with force or tactile feedback as computer generated output to the user
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures

Abstract

The invention relates to a method and an electric device comprising a screen (110), cooperating with said screen a sensor for detecting a presence of an object on or close to said screen, a controller (120) and a feedback element (140). The controller (120) is configured to interpret said presence of the object and calculate a force value and control said feedback element (140) to provide a feedback with respect to the force value.

Claims

1. A method of providing a user interaction with an electrical device, the method comprising:

receiving a user input through a touch screen interface of a touch sensitive screen;

calculating a force value corresponding to said user input based on a filtered signal; and

providing a feedback by means of a feedback element with respect on the calculated force value.

2. The method of claim 1, wherein said force value affects said feedback by increasing and/or decreasing said feedback.

3. The method of claim 1, wherein calculating the force value further comprises:

comparing an applied force to a threshold force value;

determining a difference percentage of the applied force and the threshold force value; and

controlling the feedback element based on the difference percentage.

4. The method of claim 1, wherein calculating the force value further comprises:

detecting a distance between the touch screen to a pointing object,

recalculating the distance to a force value; and

controlling the feedback element based on a distance.

5. An electric device comprising:

a touch sensitive screen,

a sensor, cooperating with said touch sensitive screen, a for detecting a presence of an object on or close to said touch sensitive screen,

a first filter element,

a second filter element,

a feedback element,

a controller configured to receive a signal from said first filter element, arranged between said touch sensitive screen and the controller, and interpret said presence of the object and calculate a force value and control said feedback element through the second filter element to provide a feedback with respect to the force value.

6. The device of claim 5, further comprising a signal input to said controller from said feedback element.

7. The device of claim 5, wherein said first filter element is a low pass filter connected between said controller and a touch screen input.

8. The device of claim 5, wherein said second filter element is one of a band-pass or high-pass filter.

9. The device according to claim 5, comprising a force sensitive touchscreen.

10. The device according to claim 5, a touch sensitive screen comprising means for generating an electrical signal indicating a positional property of the pointing object and an extent property of a mechanical interaction within a sensing zone.

11. The device according to claim 5, further comprising a sensor for capacitive and electric field sensing based on transmitting a signal by means of one or several electrodes and receiving a response with another electrode(s).

12. The device according to claim 5, wherein said controller is configured to define the force value on a surface of the screen as a distributed force on an area and thereby determining relation of the screen surface against a surface and adapting the feedback.

13. The device according to claim 5, wherein said feedback is a haptic feedback.

14. The device according to claim 5, wherein said feedback is one or both of mechanical or audible.

15. A multimedia device for displaying images, comprising:

a touch sensitive screen,

a sensor, cooperating with said touch sensitive screen, for detecting a presence of an object on or close to said touch sensitive screen,

a first filter element,

a second filter element,

a feedback element,

a controller configured to receive a signal from said first filter element, arranged between said touch sensitive screen and the controller, and interpret presence of the object and calculate a force value and control said feedback element through the second filter element to provide a feedback with respect to the force value.