Patent ID: 7729593

Claim:
An image and sound output system comprising: an image and sound data output device capable of outputting image and sound data; and an image display device that is connected to the image and sound data output device through a transmission path and displays an image on the basis of the image data outputted by the image and sound data output device, wherein the image and sound data output device includes: a image and sound data separating unit that separates the image data and the sound data included in the image and sound data; an image data transmitting unit that transmits the separated image data to the image display device through the transmission path; a sound data output unit that outputs the separated sound data; an image data analyzing unit that determines a bit rate of the image data transmitted to the image display device by the image data transmitting unit; a process time calculating unit that calculates an image processing time on the basis of setting information which indicates a variation of a set value of the image display device; a sound output adjusting time creating unit that creates a sound output adjusting time, the sound output adjusting time creating unit adapted to: acquire an adjusting time on the basis of the bit rate of the image data determined by the image data analyzing unit, where the bit rate of the image data is associated, in a lookup table, with a predetermined adjusting time, and add the image processing time to the adjusting time so as to create a sound output adjusting time; and a sound output synchronization adjusting unit that adjusts sound output by the separated sound data in synchronization with timing of reproducing an image displayed by the image display device, on the basis of the sound output adjusting time created by the sound output adjusting time creating unit, and the image display device includes: an image data receiving unit that receives image data transmitted by the image and sound data output device; a display state setting unit that varies the set value of the image display device; a setting information transmitting unit that transmits the setting information to the image and sound data output device through the transmission path; an image processing unit that performs a reproducing process on the image data received by the image data receiving unit based on the set value that was varied; and an image forming unit that forms an image on the basis of the image data processed by the image processing unit.