Patent · US Expired

Apparatus for reading data

US6891689B2 · kind B2 · utility

3Cited by
15References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 27, 2001
Grant dateMay 10, 2005
Priority date
Expiry dateFeb 21, 2022

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11B7/00
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

In an apparatus for reading recorded data, the apparatus, a read signal is sampled from recorded data of a recording medium by synchronizing with a first clock signal. A sample value obtained by the sampling part is stored and also the sample value from the first storing part is retrieved by synchronizing a second clock signal different from the first clock signal and maximum likelihood data is detected by processing the sample value in accordance with a predetermined algorithm. The recorded data is read based on the detected data.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.