| 发明名称 |
TRELLIS CODED QAM USING RATE COMPATIBLE, PUNCTURED, CONVOLUTIONAL CODES |
| 摘要 |
The digital transmission system provides a selective protection by combining a convolutional coding (14), a punctured coding (16) and a digital quadrature amplitude modulation (15). The rate of the convolutional coding is N/N2, and the quadrature amplitude modulation uses a 2<2N>-point constellation with N > 1. Application: digital transmission system, satellite television, cable television.
|
| 申请公布号 |
WO9750218(A1) |
申请公布日期 |
1997.12.31 |
| 申请号 |
WO1997IB00756 |
申请日期 |
1997.06.23 |
| 申请人 |
PHILIPS ELECTRONICS N.V.;CHOULY, ANTOINE;BRAJAL, AMERICO;GIANELLA, DAVID |
发明人 |
CHOULY, ANTOINE;BRAJAL, AMERICO;GIANELLA, DAVID |
| 分类号 |
H03M13/23;H04L27/34;(IPC1-7):H04L27/34 |
主分类号 |
H03M13/23 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
