PICTURE TRANSMISSION SYSTEM

摘要

A PICTURE TRANSMISSION SYSTEM CAPABLE OF ESTABLISHING ARBITRARY PICTURE CONNECTIONS WITH PICTURE INPUTTING UNITS (101-1 TO 101-N) EXCEEDING IN NUMBER CHANNEL RESOURCES OF A TRANSMISSION MEDIUM (102) FOR MULTIPLEXING AND TRANSMITTING VIDEO INFORMATION TAKEN THROUGH THE PICTURE INPUTTING UNITS (101-1 TO 101-N). A PICTURE SENDING STATE STORAGE UNIT (201-1 TO 201-N) PROVIDED CORRESPONDING TO EACH OF THE PICTURE INPUTTING UNITS (101-1 TO 101-N) VIRTUALLY RETAINS CHANNEL RESOURCES WHOSE NUMBER EQUALS THE NUMBER OF PICTURE OUTPUTTING UNITS (103-1 TO 103-M) TO WHICH THE PICTURE INPUTTING UNITS (101-1 TO 101-N) ARE IN CONNECTION. FOR PICTURE CONNECTION SWITCHING FROM ONE PICTURE OUTPUTTING UNIT TO A DIFFERENT PICTURE INPUTTING UNIT, THE PICTURE SENDING STATE STORAGE UNIT (201-1 TO 201-M) GIVES ITS CHANNEL RESOURCE TO THE DIFFERENT PICTURE INPUTTING UNIT. THE SYSTEM IS PROVIDED WITH A PICTURE CONNECTION MANAGING UNIT (109) FOR CONTROLLING THE PICTURE CONNECTIONS BETWEEN THE PICTURE INPUTTING UNITS (101-1 TO 101-N) AND THE PICTURE OUTPUTTING UNITS (103-1 TO 103-M). THE PICTURE CONNECTION MANAGING UNIT (109) ACCEPTS A PICTURE CONNECTION REQUEST TO PERFORM THE CENTRALIZED MANAGEMENT OF CHANNEL RESOURCES OF THE TRANSMISSION MEDIUM TO ALLOW DYNAMIC CHANNEL RESOURCE ALLOCATION. UNDER CONTROL OF THE PICTURE CONNECTION MANAGING UNIT (109); THE PICTURE CONNECTION BETWEEN THE PICTURE INPUTTING UNIT (101-1 TO 101-N) AND , THE PICTURE OUTPUTTING UNIT (103-1 TO 103-M) TAKES PLACE THROUGH AN ALLOCATED CHANNEL RESOURCE. (FIGURE 1)