Patent ID: 11934616
Assignee: SEIKO EPSON CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 4:
5. An image display system comprising:
an image supplier; and
a display apparatus provided so as to be bi-directionally communicable with the image supplier,
wherein the image supplier displays a second image contained in a first image, and transmits an image signal based on a third image contained in the first image and different from the second image, and
the display apparatus includes one or more processors programmed to receive the image signal and display a fourth image based on the received image signal, detect a position to which a pointing element is pointing on the fourth image, identify first coordinates in a coordinate system of the fourth image, which represent the position to which the pointing element is pointing in the fourth image, acquire first information representing resolution of the second image by estimating the first information based on the image signal and second information representing a position of the third image relative to the second image on the image supplier, convert the first coordinates into second coordinates in a coordinate system of the first image, which represent a position in the first image, based on the first information and the second information, and transmit the second coordinates to the image supplier.