Image/sound supply device, image/sound supply system, image/sound supply method, and image/sound supplying program

An image and sound supply method adapted to repeatedly supply sound data and image data in such a manner that intervals between transmission start points of the sound data become constant, comprising:

• (a) extracting a first block data including data with a difference between two frame images with a time lag;
• (b) dividing the first block data into second block data with a data amount equal to or smaller than a second data amount when a data amount of the first block data extracted is larger than the second data amount;
• (c) outputting the sound data with a first data amount;
• and
• (d) outputting the first block data subsequently to output of the sound data in step (c) when dividing of the first block data is skipped in step (b), and outputting the second block data as much as a data amount equal to or smaller than the second data amount subsequently to the output of the sound data in step (c) when the first block data is divided in step (b), wherein the first data amount is a data amount of the sound data to be transmitted at a time, and the second data amount is a maximum data amount of the image data to be transmitted subsequently to the sound data.

At least one non-transitory computer readable storage medium embodying an image and sound supplying program for making a computer execute a process of repeatedly supplying sound data and image data in such a manner that intervals between transmission start points of the sound data become constant, the process comprising:

• (a) extracting a first block data including data with a difference between two frame images with a time lag;
• (b) dividing the first block data into second block data with a data amount equal to or smaller than a second data amount when a data amount of the first block data extracted is larger than the second data amount;
• (c) outputting the sound data with a first data amount;
• and
• (d) outputting the first block data subsequently to output of the sound data in step (c) when dividing of the first block data is skipped in step (b), and outputting the second block data as much as a data amount equal to or smaller than the second data amount subsequently to the output of the sound data in step (c) when the first block data is divided in step (b), wherein the first data amount is a data amount of the sound data to be transmitted at a time, and the second data amount is a maximum data amount of the image data to be transmitted subsequently to the sound data.