Patent · US Active

Multi-level recording on shingled coherent magnetic media

US7982994B1 · kind B1 · utility

54Cited by

14References

20Claims

0Family size

Assignee

Seagate Technology LLC · US

Inventors

Mehmet Fatih Erden · St. Louis Park, US
Mourad Benakli · Eden Prairie, US
Walter R. Eppler · Seneca, US

Key dates

Filing date	May 12, 2010
Grant date	Jul 19, 2011
Priority date	—
Expiry date	May 12, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG11B5/09
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A data storage system includes recording media with a shingled track pattern of multiple data tracks in which mapped data bits are recorded. The mapped data are coherently aligned with one another across the multiple data tracks. A read head has an effective read head width that extends across the multiple data tracks and that is aligned to coherently read the mapped data bits. A read head output includes a non-binary multi-level amplitude summation of the mapped data bits.

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