| 摘要 |
PROBLEM TO BE SOLVED: To provide program broadcasting equipment, program receiving equipment and a program broadcasting system wherein a program having high quality image can be watched irrespective of the degree of crowding of a circuit and a problem of copyright like illegal copying of contents can be prevented. SOLUTION: This program broadcasting system consists of program broadcasting equipment 100 having a transmitting means 102 which transmits subprogram data after main program data have been transmitted, a receiving means 103 for receiving the main program data and the subprogram data, a storing means 104 for storing the main program data received with the receiving means 103, an outputting means 106 for outputting the main program data and the subprogram data which are received with the receiving means 103, and program receiving equipment 101 having a program output controlling means 105 which performs control in such a manner that the main program data which are stored in the storing means 104 at the time of watching are outputted when the subprogram data are viewed and not outputted when the subprogram data are not watched. |
