Image display system, image display method, storage medium, and computer program
AssigneeCanon Kabushiki Kaisha
InventorMasahide Hasegawa
Life of this patent
Estimating the term…
Abstract
An image display system, for displaying an image on a screen in response to a position of a pointer, includes an image display unit for displaying the image on the screen, a detector for detecting coordinates responsive to the position of the pointer, and a display controller. The display controller controls the display to display an image indicating the position pointed by the pointer at position coordinates spaced by a predetermined distance from the position coordinates detected by the detector.
Claims26
An image display system for displaying an image on a screen in response to a position of a pointer, the image display system comprising:
- projection-type image display means for displaying an image on the screen;
- detector means for detecting coordinates responsive to the position of said pointer;
- and
- display control means for controlling said display means to display the image indicating the position pointed by said pointer at position coordinates spaced by a predetermined distance from the position coordinates detected by said detector means.
A method for controlling an image display system for displaying an image on a screen in response to a position of a pointer, the method comprising the steps of:
- indicating a position on the screen with the pointer;
- detecting coordinates responsive to the position of the pointer;
- and
- controlling a display to display an image indicating the position pointed by the pointer at position coordinates spaced by a predetermined distance from the detected position coordinates.
A storage medium storing a computer program for controlling an image display system for displaying an image on a screen in response to a position of a pointer, said computer program comprising:
- a program code for a projection-type image display step for displaying the image on the screen;
- a program code for a detection step for detecting coordinates responsive to the position of the pointer;
- and
- a program code for a display control step for controlling the displayed image to indicate the position pointed to by the pointer at position coordinates spaced by a predetermined distance from the detected position coordinates.
A computer program for controlling an image display system for displaying an image on a screen in response to a position of a pointer, said computer program comprising:
- a program code for a projection-type image display step for displaying the image on the screen;
- a program code for a detection step for detecting coordinates responsive to the position of the pointer;
- and
- a program code for a display control step for controlling the displayed image to indicate the position pointed by the pointer at position coordinates spaced by a predetermined distance from the detected position coordinates.
An image display system for displaying an image on screen in response to a position of a pointer, the image display system comprising:
- a pointer for indicating a position on the screen;
- detector means for detecting coordinates responsive to the position of said pointer, wherein the pointer includes a plurality of light emitters with one of a hollow section and a transparent section interposed therebetween;
- and
- projection-type image display means for displaying the image on the screen based on the detected coordinates.
A method for controlling an image display system which displays an image in response to the position of a pointer, said method comprising the steps of:
- indicating a position on the screen with a pointer;
- detecting coordinates responsive to the position of the pointer, with the pointer including a plurality of light emitters with one of a hollow section and a transparent section interposed therebetween;
- and
- displaying the image on the screen based on the detected coordinates.
A storage medium storing a computer program for controlling an image display system for displaying an image on a screen in response to a position of a pointer, said computer program comprising:
- a program code for a detection step for detecting coordinates responsive to the position of the pointer, wherein the pointer includes a plurality of light emitters with one of a hollow section and a transparent section interposed therebetween;
- and
- a program code for a projection-type image display step for displaying the image on the screen based on the detected coordinates.
A computer program for controlling an image display system for displaying an image on a screen in response to a position of a pointer, said computer program comprising:
- a program code for a detection step for detecting coordinates responsive to the position of the pointer, wherein the pointer includes a plurality of light emitters with one of a hollow section and a transparent section interposed therebetween;
- and
- a program code for a projection-type image display step for displaying the image on the screen based on the detected coordinates.
An image display system for displaying an image on a screen in response to a position of a pointer, the image display system comprising:
- a projection-type image display unit for displaying an image on the screen;
- a detector unit for detecting coordinates responsive to the position of said pointer;
- a coordinate calculator to calculate first position coordinates on the basis of the detected coordinates;
- and
- a display controller for controlling said display unit to display the image indicating the position, wherein the image is displayed selectively either at the first position coordinates or at second position coordinates spaced by a predetermined distance from the first position coordinates.
An image display system for displaying an image on screen in response to a position of a pointer, the image display system comprising:
- a pointer for indicating a position on the screen;
- a detector unit for detecting coordinates responsive to the position of said pointer, wherein said pointer includes a plurality of light emitters with one of a hollow section and a transparent section interposed therebetween;
- and
- a projection-type image display unit for displaying the image on the screen based on the detected coordinates.
Dependencies are inferred from the claim text.