System and method for displaying a portion of an image displayed on a screen on a display of a mobile device in magnified form

A mobile device comprising a processing system, a user interface and a display screen, the mobile device being configured to:

• receive an input of a location and a size of an area of an image displayed on a display of a computer device coupled to the mobile device, the area being smaller than the image, the location and the size being transmitted from the mobile device to the computer device and being displayed as a visual indicator under a control of a user of the mobile device on the image on the display under a control of the computer device;
• receive image data relating to the image from the computer device;
• display the area of the image on the screen of the mobile device, the displayed area having a magnification factor of less than one or more than one compared to the image;
• receive a user input to make a change to a content of the image being displayed on the displayed area having the magnification factor on the screen of the mobile device;
• transmit, from the mobile device to the computer device, information relating to the change of the content of the image;
• and
• update the image on the display to display the content changed by the user of the mobile device,
• wherein a different portion of the updated image is viewable by a different user on a screen of a different mobile device communicatively coupled to the computer device, and
• wherein the portion of the image viewable by the user and the different portion of the image viewable by the different user are each outlined by a different rectangular box on the display.

A computer device comprising:

• a display controller configured to display an image on a display coupled to the computer device;
• a communication transceiver configured to communicatively couple to a mobile device having a screen and to transmit image data relating to the image to the mobile device, the image data enabling the mobile device to display an area of the image on its screen, the area having a magnification factor of less than one or more than one compared to the image,
• wherein the communication transceiver is configured to receive a location and size of the area of the image and the magnification factor for the area, and to receive, from the mobile device, information relating to a change of content of the image to be made by a user of the mobile device to change the content of the image being displayed on the screen of the mobile device having the magnification factor on the screen of the mobile device;
• wherein the display controller is configured to display on the image at least one of:
• a visual indicator under the control of a user of the mobile device, the visual indicator indicating the location and size of the area of the image;
• or
• an update of the image with the content changed by an input from the user;
• and
• wherein the display controller updates the image on the display based on the display data and on the information relating to the change of content received from the mobile device,
• wherein a different portion of the updated image is viewable by a different user on a screen of a different mobile device communicatively coupled to the computer device, and
• wherein the portion of the image viewable by the user and the different portion of the image viewable by the different user are each outlined by a different rectangular box on the display.