Interactive digital multimedia cable TV system |
Title： |
| Interactive digital multimedia cable TV system |
|
Application Number： |
02129305 |
Application Date： |
2002/08/30 |
Announcement Date： |
2003/02/19 |
Pub. Date： |
|
Publication Number： |
1398120 |
Announcement Number： |
1207913 |
Grant Date： |
2005-6-22 |
Granted Pub. Date： |
2005-6-22 |
ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
H04N 7/173, H04N 7/10 |
Applicant(s)： |
Tsinghua Univ |
Inventor(s)： |
Yang Lin, Yang Zhixing |
Key Words： |
Interactive, digital multimedia, cable TV system |
Abstract： |
Interactive wire digit multimedia TV broadcast system characterizes that it is one of any broadcast systems of single or two-way, interactive independer of interactive channels. The down-stream interactive signals are applied of the down-stream channel TDS-OFDM while the up-line interactive signals are in the up-line channel of CDMA TDS-OFDM. The interactive interface of broadcast channel and interactive channel or the common interface of single way broadcast system independent of interactive channel are the top box nulti-transfer network protocols and compatible with Europen DVB-C standard. |
Claim： |
|
Priority： |
|
PCT： |
|
LegalStatus： |
|
Relevancy information
