Data recovery system particularly for systems utilizing partial response maximum likelihood detection
US6249395A · kind A · utility
22Cited by
1References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 8, 1998 |
| Grant date | Jun 19, 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 preamble pulses having a predetermined sequence followed by data pulses. An analog to digital converter converts samples of the preamble pulses and the data pulses into corresponding digital words in response to clock pulses fed to a clock input of the converter. A pair of feedback loops is coupled to an output of the analog to digital converter to produce the clock pulses for the converter; a first one during a data recovery mode and a second one during a preceding preamble acquisition mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.