Data recovery system having offset compensation
US6332205A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 8, 1998 |
| Grant date | Dec 18, 2001 |
| Priority date | — |
| Expiry date | Dec 8, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/09
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data recovery system wherein the data is represented by a sequence of data pulses comprising a predetermined sequence of preamble pulses followed by the sequence of data pulses. The data pulses have desired data pulses and a DC offset component, each one of such data pulses having during the preamble acquisition mode a predetermined period. The system includes a clock for producing clock pulses at a predetermined rate and a negative feedback loop. The negative feedback loop includes a differencing network fed by the data pulses and a feedback signal representative of the DC offset component. The differencing network removes the DC offset component from the data pulses to produce output signal representative of the desired data pulses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.