Acquisition signal error estimator
US6853509B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2002 |
| Grant date | Feb 8, 2005 |
| Priority date | — |
| Expiry date | Jul 22, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/22
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method for acquisition signal error estimation is provided which uses one or more past values of the sequence to determine the nearest ideal sample value without comparing the received sample value to the potential sample values. According to one embodiment, the nearest ideal sample value is selected based on the received sample value and values of three consecutive samples. According to another embodiment, the nearest ideal sample value is selected based on the received sample value and a value of an immediately preceding sample. According yet to another embodiment, the nearest ideal sample value is selected based on the received sample value and a value of a previous sample. The acquisition signal error estimator maybe used in conjunction with gain, DC offset, or magneto-resistive asymmetry control loops in a sampled amplitude read channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.