| 发明名称 |
Two-way communication system |
| 摘要 |
The two-way communication system which provides program information distributed in a predetermined broadcasting system from a program information provider for a CATV subscriber through a CATV network, processes return information returned from the CATV subscriber, and transmits the processed information to the program information provider is disclosed.
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| 申请公布号 |
US2002062483(A1) |
申请公布日期 |
2002.05.23 |
| 申请号 |
US20010809384 |
申请日期 |
2001.03.15 |
| 申请人 |
ISHIZAKI MASAYUKI;MIYASAKA AKIRA;OTA MASAO |
发明人 |
ISHIZAKI MASAYUKI;MIYASAKA AKIRA;OTA MASAO |
| 分类号 |
H04N5/00;H04H20/00;H04H20/76;H04H60/33;H04H60/97;H04N7/16;H04N7/173;(IPC1-7):H04N7/173 |
主分类号 |
H04N5/00 |
| 代理机构 |
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代理人 |
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