SYSTEM AND METHODS FOR CALIBRATABLE TRANSLATION OF POSITION

• US 20100220063A1
• Filed: 02/27/2009
• Published: 09/02/2010
• Est. Priority Date: 02/27/2009
• Status: Abandoned Application

• Current Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Inventors: Fei, Yue
• Application Number:
  US12/394,304
• Publication Number:
  US 20100220063A1
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/0418 for error correction or compensation, e.g. based on parallax, calibration or alignment
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures

Abstract

A calibratable system for translating a position input by a user to a first device to a position output of a second device includes a translation module and a calibration module. The translation module receives the position input by the user to the first device and that translates the position input to position output for the second device based on a plurality of parameters and a translation method. The calibration module selectively generates the plurality of parameters based on a calibration method that commands the user to move the position input to locations defined by the calibration method.

Claims

1. A method for translating a position input by a user to a first device to a position output of a second device, comprising:

defining an area of the first device in which input by the user is expected, where the area is less than a total area of the first device, and where the area has a boundary with at least one non-linear side;

receiving position input in the defined area of the first device; and

translating the position input by the user to the first device to the position output of the second device based on a translation method.

2. The method of claim 1, wherein defining the area of the first device in which input by the user is expected is based on predefined default parameters.

3. The method of claim 1, wherein the translation method further includes:

generating a coordinate mesh within the defined area of the first device in which input by the user is expected, wherein the coordinate mesh is divided into a first plurality of cells;

determining one of the first plurality of cells that includes the position input by the user to the first device;

determining one of a second plurality of cells that corresponds to the one of the first plurality of cells, wherein the second device is divided into the second plurality of cells; and

generating the position output of the second device based on distances from edges of the one of the second plurality of cells.

4. The method of claim 1, wherein the translation method further includes:

determining a plurality of vertices of the defined area of the first device in which input by the user is expected;

generating a polar origin point based on the plurality of vertices;

determining polar coordinate parameters based on the origin point and the plurality of vertices;

translating the position input by the user to the first device to a polar coordinate position based on the polar coordinate parameters; and

generating the position output of the second device by interpolating the polar coordinate position.

5. The method of claim 4, wherein the polar coordinate parameters include a first radius, a second radius, and an angle, wherein the first radius and the second radius correspond to distances from arcs each connecting two of the plurality of vertices to the polar origin point, wherein the first radius is greater than the second radius, and wherein the angle is based on an angular difference between two of the plurality of vertices.

6. The method of claim 1, wherein defining the area of the first device in which input by the user is expected is based on parameters generated during a calibration method.

7. The method of claim 6, wherein the calibration method further includes:

commanding the user to input a plurality of positions to the first device;

recording position input both at the plurality of commanded positions and during transitions between the plurality of commanded positions based on a predefined sampling rate; and

defining the area of the first device in which input by the user is expected based on the recorded position input.

8. The method of claim 6, wherein the calibration method further includes:

commanding the user to input a plurality of positions to the first device;

recording position input at the plurality of commanded positions;

determining an origin point based on the recorded position input; and

defining the area of the first device in which input by the user is expected based on the origin point and the plurality of recorded positions.

27. The system of claim 17, wherein the translation method is the translation method of claim 1.

9. A method for translating a position input from an appendage of a user on a touchpad to a position on a display having a rectangular shape, comprising:

defining an area on the touchpad in which input movement by the appendage of the user is expected based upon the natural movement of joints associated with the appendage;

receiving the position input in the area on the touchpad; and

translating the position input in the area on the touchpad to the position on the display using a translation method.

10. The method of claim 9, wherein defining the area on the touchpad in which input movement by the appendage of the user is expected is based on predefined default parameters.

11. The method of claim 9, wherein the translation method further includes:

generating a coordinate mesh within the defined area on the touchpad in which input from the appendage of the user is expected, wherein the coordinate mesh is divided into a first plurality of cells;

determining one of the first plurality of cells that includes the position input from the appendage of the user on the touchpad;

determining one of a second plurality of cells that corresponds to the one of the first plurality of cells, wherein the display is divided into the second plurality of cells, and wherein the second plurality of cells are rectangular; and

generating the position on the display based on the position input based on distances from edges of the one of the second plurality of cells.

12. The method of claim 9, wherein the translation method further includes:

determining a plurality of vertices of the defined area on the touchpad in which input from the appendage of the user is expected;

generating a polar origin point based on the plurality of vertices;

determining polar coordinate parameters based on the origin point and the plurality of vertices;

translating the position input in the area on the touchpad to a polar coordinate position based on the polar coordinate parameters; and

generating the position on the display by interpolating the polar coordinate position.

13. The method of claim 12, wherein the polar coordinate parameters include a first radius, a second radius, and an angle, wherein the first radius and the second radius correspond to distances from arcs each connecting two of the plurality of vertices to the polar origin point, wherein the first radius is greater than the second radius, and wherein the angle is based on an angular difference between two of the plurality of vertices.

14. The method of claim 9, wherein defining the area on the touchpad in which input from the appendage of the user is expected is based on parameters generated during a calibration method.

15. The method of claim 14, wherein the calibration method further includes:

commanding the user to move the appendage to a plurality of positions on the touchpad;

recording position input both at the plurality of commanded positions and during transitions between the plurality of commanded positions based on a predefined sampling rate; and

defining the area on the touchpad in which input from the appendage of the user is expected based on the recorded position input.

16. The method of claim 14, wherein the calibration method further includes:

commanding the user to move the appendage to a plurality of positions on the touchpad;

recording position input at the plurality of commanded positions;

determining an origin point based on the recorded position input; and

defining the area on the touchpad in which input from the appendage of the user is expected based on the origin point and the plurality of recorded positions.

30. The system of claim 17, wherein the translation method is one of the translation methods of claims 11 and 12.

32. The system of claim 17, wherein the calibration method is one of the calibration methods of claims 15 and 16.

17. A calibratable system for translating a position input by a user to a first device to a position output of a second device, comprising:

a translation module that receives the position input by the user to the first device and that translates the position input to position output for the second device based on a plurality of parameters and a translation method; and

a calibration module that selectively generates the plurality of parameters based on a calibration method that commands the user to move the position input to locations defined by the calibration method.

18. The system of claim 17, further comprising:

the first device that receives the position input from the user and sends the position input to at least one of the translation module and the calibration module.

19. The system of claim 18, wherein the first device enables one of the calibration module and the translation module based on a mode of operation selected by the user.

20. The system of claim 19, wherein the first device is a touchpad.

21. The system of claim 17, further comprising:

the second device that receives the position output from the translation module and displays the position output.

22. The system of claim 21, wherein the second device is a display screen.

23. The system of claim 17, further comprising:

a feedback module that receives the commands from the calibration module and generates at least one of audio and visual signals for the user.

24. The system of claim 23, wherein the at least one of audio and visual signals generated by the feedback module are communicated to the user via at least one of the first device and the second device.

25. The system of claim 23, wherein the at least one of audio and visual signals generated by the feedback module are communicated to the user via at least one of an audio device and a visual device, respectively.

26. The system of claim 25, wherein the audio device is a speaker and the visual device is a display screen.

28. The system of claim 17, wherein the translation method is one of the translation methods of claims 3 and 4.

29. The system of claim 17, wherein the translation method is the translation method of claim 9.

31. The system of claim 17, wherein the calibration method is one of the calibration methods of claims 6 and 7.