Patent ID: 8559522

Claim:
An image and sound supply device 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 block data extraction section adapted to extract first block data including data with a difference between the two frame images with a time lag; a block data dividing section adapted to divide 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; a sound data output section adapted to output the sound data with a first data amount; and a block data output section adapted to output the first block data subsequently to output of the sound data from the sound data output section when the block data dividing section skips dividing the first block data, and to output 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 from the sound data output section when the block data dividing section divides the first block data, 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.