| 摘要 |
PROBLEM TO BE SOLVED: To certainly protect rights such as copy rights of information providers and to realize an information service system capable of efficient circulation by relatively easily padding identification data for each user into providing information even in the case where it is applied to the information service system for transmitting information to many and unspecified users. SOLUTION: An information reproducing device for receiving and reproducing information such as a video or the like transmitted from a network 2, is equipped with a data padding unit 20 for padding prescribed identification data which can be reproduced into information received by a freely-removable card module 10. The card module 10 has a function for connecting with a card interface 11 provided in an information receiver 1, executing the padding processing of user identification data on the transmitted information from the device 1, and then outputting it to the device 1. |
