Image signal processing device, and image signal transmission system

An image signal transmission system comprising:

• an image signal processing device configured to receive image signals from a plurality of source devices and output image signals via a plurality of communication paths, the image signal processing device comprising:
• a plurality of compression circuits configured to compress image signals to be transmitted via the plurality of communication paths;
• a transmission circuit configured to output the image signals compressed by the plurality of compression circuits via the plurality of communication paths corresponding to the plurality of compression circuits;
• and
• a path/compression-rate setting circuit configured to, based on each data amount of the image signals received from the plurality of source devices, determine a communication path for transmitting a part or a whole of each of the image signals, of the plurality of communication paths, and set a common compression rate for all of the plurality of compression circuits,
• wherein the path/compression-rate setting circuit divides an image signal having a relatively large data amount out of the image signals, and assigns a part of the divided image signal to a communication path for transmitting an image signal having a relatively small data amount out of the image signals, of the plurality of communication paths;
• and
• a receiving device configured to receive the image signals from the image signal processing device via a network, generate a combined image based on the received image signals, and transmit an image signal indicating the combined image to a display device,
• wherein the receiving device includes:
• a receiving circuit configured to receive the image signals from the transmission circuit of the image signal processing device via the plurality of communication paths;
• decompression circuits configured to decompress the received image signals;
• and
• an image combining circuit configured to combine images indicated by the decompressed image signals, and
• wherein, when the decompressed image signals include parts of the image signal divided by the path/compression-rate setting circuit, the image combining circuit combines the parts back to the image signal, and combines the images using the combined image signal.