发明名称 |
Soft decision assisted equalizer adaptation |
摘要 |
A data processing system includes an equalizer circuit operable to equalize digital data according to tap coefficients to yield equalized data, a tap coefficient adaptation circuit operable to adapt the tap coefficients based at least in part on a scaled error signal, a data detector operable to apply a data detection algorithm to the digital data to generate hard decisions and soft decisions, an error calculation circuit operable to calculate an error signal based on the equalized data and on the hard decisions, and a scaling circuit operable to scale the error signal based on the soft decisions to yield the scaled error signal. |
申请公布号 |
US9288084(B1) |
申请公布日期 |
2016.03.15 |
申请号 |
US201414259338 |
申请日期 |
2014.04.23 |
申请人 |
AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD. |
发明人 |
Lu Lu;Xia Haitao;Zhang Haotian;Huang Jianzhong |
分类号 |
G11B5/035;G11B20/10;H04L25/03;H04L27/01;G11B5/09 |
主分类号 |
G11B5/035 |
代理机构 |
Hamilton DeSanctis & Cha |
代理人 |
Hamilton DeSanctis & Cha |
主权项 |
1. A data processing system comprising:
an equalizer circuit operable to equalize digital data according to tap coefficients to yield equalized data; a tap coefficient adaptation circuit operable to adapt the tap coefficients based at least in part on a scaled error signal; a data detector operable to apply a data detection algorithm to the digital data to generate hard decisions and soft decisions; an error calculation circuit operable to calculate an error signal based on the equalized data and on the hard decisions; and a scaling circuit operable to scale the error signal based on the soft decisions to yield the scaled error signal. |
地址 |
Singapore SG |