| 摘要 |
PROBLEM TO BE SOLVED: To make possible for any person to utilize various services being provided by a CATV company. SOLUTION: A media unit 3 comprises means for making various services available by a prepaid card, means for providing various services, and means 22 for transmitting data indicative of start or end of various services, and a CATV set 2 comprises means 22 for receiving data indicative of start or end of various services, and means 26 for calculating the charge of various services by calculating the utilization time of various services upon receiving the data. |
