Patent ID: 8533366

Claim:
A method of transmitting image data from an image supplying device to an image display device, the method comprising: transmitting information indicating a maximum resolution supported by the image display device from the image display device to the image supplying device, the image display device comprising a projector; comparing a resolution of the image supplying device to the maximum resolution supported by the image display device; when the resolution of the image supplying device is greater than the maximum resolution supported by the image display device, determining whether the image supplying device supports scaling the image data to the maximum resolution supported by the image display device; if the image supplying device is determined to not support scaling the image data to the maximum resolution supported by the image display device, abstaining from scaling or transmitting image data from the image supplying device to the image display device; if the image supplying device is determined to support scaling the image data to the maximum resolution supported by the image display device, scaling the image data, by the image supplying device, to decrease an amount of the image data by reducing an image based on the information indicating the resolution of the image display device; determining a compression method of the scaled image data from a selectable range of compression methods based on transmission path information; compressing the scaled image data by the image supplying device according to the determined compression method; and transmitting the scaled and compressed image data from the image supplying device to the image display device.