FORCE INDICATION OF A BOUNDARY

1 . An apparatus comprising:

a display;

a feedback device;

a processor;

a memory that stores code executable by the processor, the code comprising:

code that detects an attention area on the display intersecting a boundary of the display; and

code that provides a force indication through the feedback device in response to detecting the attention area intersecting the boundary.

2 . The apparatus of claim 1 , wherein the attention area is one or more of a cursor, a visual area of interest, a pointing device physical position, a pointing device virtual position, and a user position.

3 . The apparatus of claim 1 , wherein the feedback device is embodied in a pointing device that generates the attention area.

4 . The apparatus of claim 1 , wherein detecting intersecting the boundary comprises one or more of detecting approaching within a boundary buffer distance of the boundary, detecting crossing the boundary, and detecting being located on the boundary.

5 . The apparatus of claim 1 , wherein the force indication comprises an asymmetric signal applied to the feedback device.

6 . The apparatus of claim 1 , wherein the feedback device is a tactile actuator.

7 . The apparatus of claim 1 , wherein the feedback device is embodied in a wearable item and the feedback device provides the force indication by stiffening the wearable item.

8 . The apparatus of claim 1 , wherein the feedback device is selected from the group consisting of a piezoelectric actuator, a thermal actuator, and a mechanical actuator.

9 . A method comprising:

detecting, by use of a processor, an attention area on a display intersecting a boundary of the display; and

providing a tactile indication through a feedback device in response to detecting the attention area intersecting the boundary.

10 . The method of claim 9 , wherein the attention area is one or more of a cursor, a visual area of interest, a pointing device physical position, a pointing device virtual position, and a user position.

11 . The method of claim 9 , wherein the feedback device is embodied in a pointing device that generates the attention area.

12 . The method of claim 9 , wherein detecting intersecting the boundary comprises one or more of detecting approaching within a boundary buffer distance of the boundary, detecting crossing the boundary, and detecting being located on the boundary.

13 . The method of claim 9 , wherein the force indication comprises an asymmetric signal applied to the feedback device.

14 . The method of claim 9 , wherein the feedback device is a tactile actuator.

15 . The method of claim 9 , wherein the feedback device is embodied in a wearable item and the feedback device provides the force indication by stiffening the wearable item.

16 . A program product comprising a computer readable storage medium that stores code executable by a processor, the executable code comprising code to perform:

detecting an attention area on a display intersecting a boundary of the display; and

providing a tactile indication through a feedback device in response to detecting the attention area intersecting the boundary.

17 . The program product of claim 16 , wherein the attention area is one or more of a cursor, a visual area of interest, a pointing device physical position, a pointing device virtual position, and a user position.

18 . The program product of claim 16 , wherein the feedback device is embodied in a pointing device that generates the attention area.

19 . The program product of claim 16 , wherein detecting intersecting the boundary comprises one or more of detecting approaching within a boundary buffer distance of the boundary, detecting crossing the boundary, and detecting being located on the boundary.

20 . The program product of claim 16 , wherein the force indication comprises an asymmetric signal applied to the feedback device.