Patent ID: 8509605

Claim:
A synchronized reproduction system having at least one image reproduction device reproducing an image based on multimedia data including image data and sound data, and a sound reproduction device reproducing sound based on the multimedia data, the sound reproduction device including: a first reception section which receives the multimedia data from an information provision device via a first transmission channel; a first separation section which separates the sound data from the multimedia data; a synchronization data generation section which generates synchronization data based on the sound data; and a synchronization data transmission section which transmits the synchronization data to the image reproduction device via a second transmission channel differing from the first transmission channel; and the image reproduction device including: a second reception section which receives the multimedia data from the information provision device via the first transmission channel; a second separation section which separates the image data and the sound data from the multimedia data; a storage section which stores the image data and the sound data; a synchronization data reception section which receives the synchronization data via the second transmission channel; and a matching section which determines corresponding sound data from among the sound data stored in the storage section based on the synchronization data, and determines reproduction target image data corresponding to the determined sound data from among the image data stored in the storage section, wherein the synchronization data includes pattern data indicating part of the sound data, and the matching section determines corresponding sound data from among the sound data stored in the storage section based on the pattern data.