Synchronous processing system at time of converting specification of moving picture information

A system for producing, storing and reproducing audiovisual information, the system comprising:

• a first terminal;
• a second terminal;
• a control device;
• an information processing device;
• and
• a memory device;
• wherein the control device sends a synchronous data length to the information processing device;
• wherein the information processing device receives the synchronous data length from the control device;
• wherein the first terminal produces the audiovisual information, the audiovisual information comprising audio information and visual information;
• wherein the information processing device comprises:
• a transmission/reception device that receives the audiovisual information from the first terminal;
• a separation device that receives the audiovisual information from the transmission/reception device and separates the audio information from the visual information;
• and
• a synchronizing control section that:
• 1) receives from the separation device the audio information and the visual information;
• 2) delimits and defines data blocks, each of the data blocks comprising a subset of the audio information and a subset of the visual information, upon one of A) a data length of the corresponding subset of the audio information reaching the synchronous data length and B) a data length of the corresponding subset of the visual information reaching the synchronous data length;
• and 3) affixes to each of the data blocks a data length of the corresponding data block to produce length-affixed data blocks;
• and
• wherein the transmission/reception device sends the length-affixed data blocks to the memory device;
• wherein the memory device receives the length-affixed data blocks from the transmission/reception device and stores the length-affixed data blocks;
• wherein, upon receipt of a request from the second terminal to reproduce the audiovisual information at the second terminal per a required specification, the control device instructs the memory device to send the length-affixed data blocks to the transmission/reception device;
• wherein the transmission/reception device receives the length-affixed data blocks from the memory device;
• wherein the information processing device further comprises:
• a conversion section that, for each of the length-affixed data blocks received from the transmission/reception device, uses the corresponding affixed data length to determine the corresponding delimiter defined by the synchronizing control section and recognizes each length-affixed data block as distinct from other length-affixed data blocks;
• an audio conversion device that, for each of the length-affixed data blocks, converts to the required specification the corresponding subset of audio information;
• a visual conversion device that, for each of the length-affixed data blocks, converts to the required specification the corresponding subset of visual information;
• and
• a multiplexer that, for each of the length-affixed data blocks, multiplexes the converted subset of audio information and the converted subset of visual information and produces a multiplexed subset of audiovisual information;
• and
• wherein the transmission/reception device sends the multiplexed subset of audiovisual information corresponding to each of the data blocks to the second terminal for reproduction.