CURSOR DISPLAY DEVICE AND CURSOR DISPLAY METHOD

• US 20120256831A1
• Filed: 04/03/2012
• Published: 10/11/2012
• Est. Priority Date: 04/07/2011
• Status: Active Grant

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Sakurai, Shinji
• Granted Patent: US 9,223,419 B2
• Time in Patent Office: Days
• US Class Current: 345/157
• CPC Class Codes: G06F 2203/0384 Wireless input, i.e. hardware and software details of wireless interface arrangements for pointing devices
• CPC Class Codes: G06F 3/0325 using a plurality of light emitters or reflectors or a plurality of detectors forming a reference frame from which to derive the orientation of the object, e.g. by triangulation or on the basis of reference deformation in the picked up image
• CPC Class Codes: G06F 3/03545 Pens or stylus
• CPC Class Codes: G06F 3/038 Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry

Abstract

A recognizing process in which an indicated first position is recognized on a display screen projected and displayed by a projector and a controlling process in which control is performed so as to display a cursor associated with the indication in a second position on the display screen are provided, and the cursor is displayed in the second position such that the cursor is displaced from the first position by a predetermined distance.

Claims

1. A cursor display device comprising:

an indicated position recognizing unit that recognizes a first position indicated by an indicating unit on a display screen projected and displayed by a projector; and

a cursor display controlling unit that performs control so as to display a cursor associated with an indication given by the indicating unit in a second position on the display screen,

wherein

the cursor display controlling unit performs control so as to display the cursor in the second position such that the cursor is displaced from the first position by a predetermined distance.

2. The cursor display device according to claim 1, wherein

the cursor display controlling unit determines the direction of displacement from the indicated position to a display position of the cursor or the amount of displacement depending on an area on the display screen, the area to which the indicated position belongs.

3. The cursor display device according to claim 1, wherein

the cursor display controlling unit determines the direction of displacement from the indicated position to a display position of the cursor or the amount of displacement depending on position information of the indicating unit.

4. The cursor display device according to claim 1, wherein

the cursor display controlling unit determines the direction of displacement from the indicated position to a display position of the cursor or the amount of displacement depending on an indicated direction of the indicating unit.

5. The cursor display device according to claim 1, wherein

the cursor display controlling unit determines the direction of displacement from the indicated position to a display position of the cursor or the amount of displacement depending on the size of the display screen.

6. The cursor display device according to claim 1, wherein

the indicating unit includes an operation accepting unit that accepts an operation from a user, and

when the operation accepting unit accepts a cursor position moving operation for moving a display position of the cursor, the cursor display controlling unit performs control so as to move the display position of the cursor in accordance with the cursor position moving operation and display the cursor in a position to which the display position of the cursor was moved.

7. The cursor display device according to claim 3, wherein

the position information of the indicating unit is a distance from the display screen to the projector.

8. The cursor display device according to claim 1, further comprising:

an imaging unit that takes an image of the display screen and the first position,

wherein

the indicated position recognizing unit recognizes the first position based on an output of the imaging unit.

9. A cursor display method comprising:

recognizing an indicated first position on a display screen projected and displayed by a projector; and

controlling a cursor associated with the indication so as to be displayed in a second position on the display screen,

wherein

the cursor is displayed in the second position such that the cursor is displaced from the first position by a predetermined distance.

10. A cursor display method comprising:

performing calibration of a display position on a projected screen projected by a projector and an indicated position indicated by an indicating unit; and

then

performing cursor display such that a cursor position associated with an indication given by the indicating unit is displaced from the indicated position when a determination is made that the indicating unit is in a hovering state.

11. The cursor display method according to claim 10, wherein

when the indicating unit is in the hovering state, the amount of displacement of the cursor position is varied depending on the amount of hovering.