Data reproducing apparatus and method for improving detection performance by adjusting decision levels used in data detector
US6977970B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2001 |
| Grant date | Dec 20, 2005 |
| Priority date | — |
| Expiry date | May 3, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03484
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A data reproducing apparatus and method for improving data detection performance by adjusting decision levels used in a data detector. The data reproducing apparatus includes an equalizer which equalizes an input digital signal, a data detector which detects data from the output of the equalizer based on decision levels, and a level decision unit which detects levels corresponding to the decision levels used in the data detector from the output of the equalizer and feeds back corrected decision levels, which adaptively vary with the output level of the equalizer, to the data detector. Accordingly, the detection performance of the data detector is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.