发明名称 |
Interactive chargeable communication system with billing system therefor |
摘要 |
A billing system for use in a chargeable program broadcasting is capable of reliably billing a subscriber for program reception while preventing unauthorized reception thereof. A receiving terminal includes a primary terminal 100 and a secondary terminal 150. The primary terminal 100 receives a compressed video signal and confirms by an error checker 113 thereof whether there is a transmission error and bills, by a billing device 114 thereof, the receiving subscriber on the basis of an error information and a program information, etc., separated from the video signal by a separation circuit 112. The compressed video data is time-axis multiplexed with a terminal identifying code and a key signal and transmitted to the secondary terminal 150. In the secondary terminal 150, a bill for the subscriber is confirmed by the terminal identifying code and the compressed data is decoded by a decoder circuit 166 thereof.
|
申请公布号 |
US6249532(B1) |
申请公布日期 |
2001.06.19 |
申请号 |
US19990237698 |
申请日期 |
1999.01.26 |
申请人 |
HITACHI, LTD.;HITACHI MICROCOMPUTER SYSTEMS, LTD. |
发明人 |
YOSHIKAWA KAZUHIKO;OWASHI HITOAKI;HAYAKAWA HIROYUKI;OTSUBO TADASU;HOSOKAWA KYOICHI |
分类号 |
H04N5/913;H04N7/16;(IPC1-7):H04J3/12;H04H1/04 |
主分类号 |
H04N5/913 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|