发明名称 |
Decoding the output signal of a partial-response class-IV communication or recording device channel |
摘要 |
A maximum-likelihood sequence decoder is used with a partial-response signaling system for processing sequences of sampled values from a communication channel or recording device. The partial-response signals can be duobinary, dicode, or partial-response class-IV. The maximum-likelihood decoding for each sequence can be based upon a two-state trellis. Instead of two survivor metrics for two states, only a difference metric is necessary.
|
申请公布号 |
US4644564(A) |
申请公布日期 |
1987.02.17 |
申请号 |
US19850787277 |
申请日期 |
1985.10.15 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
DOLIVO, FRANCOIS B.;UNGERBOECK, GOTTFRIED;HOWELL, THOMAS D. |
分类号 |
H04L25/03;H04L25/497;(IPC1-7):H04L3/00 |
主分类号 |
H04L25/03 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|