Image display apparatus and method, image display system, and program

1. An information processing apparatus comprising:

at least one processor configured to:

determine that a first external apparatus has an access right to an image layer;

execute a first process based on a first operation signal received from the first external apparatus which has the access right to the image layer;

determine that a second external apparatus does not have the access right to the image layer;

execute a second process based on a second operation signal received from the second external apparatus which does not have the access right to the image layer;

generate an image according to the image layer based on the first process and the second process; and

control projection of the generated image.

2. The information processing apparatus as defined in claim 1 , wherein the at least one processor is configured to execute the first process by providing a first image and to execute the second process by providing a second image.

3. The information processing apparatus as defined in claim 2 , wherein the at least one processor is configured to generate the image by combining the first and second images in the generated image.

4. The information processing apparatus as defined in claim 1 , wherein the at least one processor is configured to execute the first process based on the first operation signal comprising a pointer position.

5. The information processing apparatus as defined in claim 1 , wherein the at least one processor is configured to execute the first process based on the first operation signal comprising a decision operation.

6. The information processing apparatus as defined in claim 1 , wherein the at least one processor is configured to store information corresponding to the first operation signal and the second operation signal.

7. The information processing apparatus as defined in claim 1 , wherein the at least one processor is configured to generate the image by selecting an image from a plurality of images.

8. The information processing apparatus as defined in claim 1 , wherein the at least one processor is configured to store information that corresponds to the first external apparatus which has the access right to the image layer.

9. The information processing apparatus as defined in claim 1 , wherein the at least one processor is configured to delete a pointer that corresponds to the second external apparatus which does not have the access right to the image layer.

10. The information processing apparatus as defined in claim 1 , wherein the at least one processor is configured to change a position of a pointer in the generated image in response to the first operation signal or the second operation signal.

11. The information processing apparatus as defined in claim 1 , wherein the at least one processor is configured to delete a pointer in the generated image after a predetermined time when the pointer corresponds to the second external apparatus which does not have the access right to the image layer.

12. The information processing apparatus as defined in claim 11 , wherein the at least one processor is configured to not delete a pointer in the generated image when the pointer corresponds to the first external apparatus which has the access right to the image layer.

13. The information processing apparatus as defined in claim 1 , wherein the at least one processor is configured to change the generated image to a new page of the image layer in response to the first operation signal.

14. The information processing apparatus as defined in claim 1 , wherein the at least one processor is configured to output the generated image to a plurality of display apparatuses.

15. The information processing apparatus as defined in claim 1 , wherein the at least one processor is configured to provide the access right to another external apparatus.

16. The information processing apparatus as defined in claim 1 , wherein the first external apparatus comprises a first pointing device and the second external apparatus comprises a second pointing device.

17. An information processing method comprising:

determining that a first external apparatus has an access right to an image layer;

executing, by at least one processor, a first process based on a first operation signal received from the first external apparatus which has the access right to the image layer;

determining that a second external apparatus does not have the access right to the image layer;

executing a second process based on a second operation signal received from the second external apparatus which does not have the access right to the image layer;

generating an image according to the image layer based on the first process and the second process; and

controlling projection of the generated image.

18. A non-transitory computer-readable medium containing instructions that, when executed by at least one processor, perform an information processing method comprising:

determining that a first external apparatus has an access right to an image layer;

executing a first process based on a first operation signal received from the first external apparatus which has the access right to the image layer;

determining that a second external apparatus does not have the access right to the image layer;

executing a second process based on a second operation signal received from the second external apparatus which does not have the access right to the image layer;

generating an image according to the image layer based on the first process and the second process; and

controlling projection of the generated image.

19. The information processing apparatus as defined in claim 1 , wherein determining that the first external apparatus has the access right to the image layer comprises receiving an access right code from the first external apparatus.

20. The information processing apparatus as defined in claim 1 , wherein the access right to the image layer comprises write access to the image layer.