System for simultaneous long-distance vision of video pictures reproduced by a transmitting videorecorder and receiving videorecorder

A system for simultaneous long-distance vision of video images reproduced by a transmitting videorecorder and a receiving videorecorder comprising:

• a transmitting subsystem (1) and a receiving subsystem (2), each disposed in different and mutually distant places;
• said transmitting subsystem (1) comprising:
• a transmitting videorecorder (TX), in which a video cassette is inserted and on one of whose two audio tracks a position code is recorded;
• a first electronic reading processing and transmitting exchange (100) of a sequence of data (d) identifying position and state of said transmitting videorecorder (TX), respectively connected to a telephone line (LT) by means of a first modem device (M1);
• said receiving subsystem (2) comprising:
• a receiving videorecorder (RX), in which a video cassette identical to the one loaded in the transmitting videorecorder (TX) is inserted, and having on one of its two audio tracks a position code which is identical to the one loaded on the transmitting videorecorder (TX);
• a second electronic exchange (200) for control, reception, comparison and procession of the data sequence (D) identifying position and state of the transmitting videorecorder (TX) coming from the first electronic exchange (100), with respect to the data sequence (DR) identifying the position of the receiving videorecorder (RX);
• said second electronic exchange (200) being connected to said receiving videorecorder (RX) and also to a telephone line (LT) by means of a second modem device (M2);
• said first electronic exchange (100) having the function of reading, processing and sending the sequence of date (D) regarding the position and state of the transmitting videorecorder (TX), which functions are managed by a first processing program;
• said second electronic exchange (200) having the function of controlling, receiving, comparing and processing of said data coming from said transmitting subsystem (1) with the data identifying the position of the receiving videorecorder (RX) in command functions for the receiving videorecorder (RX), obtaining picture simultaneity on said videorecorders (TX,RX), which functions are managed by a second processor program, said first electronic exchange (100), connected in input to said transmitting video recorder (TX) and in output to said first modem system (M1) comprises an interface system (101) connected bidirectionally to a microprocessor (111) and directionally to said first modem device (M1), said second electronic exchange (200), connected both in input and in output to said receiving video recorder (RX) comprises a second interface system (202) connected bidirectionally to a second microprocessor (222) and to said second modem device (M2), said second microprocessor (222), through said second processor program, has the function of reading the data (D) from said transmitting subsystem (1), comparing the position of the receiving video recorder (RX) with said read data, the difference, and sending command signals to eliminate said difference.