US 2015/0146320 A1 · READING FROM A TAPE STORAGE MEDIUM

Abstract

A method for operating a tape storage system includes simultaneously receiving readback signals from a set of data readers reading from data tracks of a set of adjacent data tracks extending along a longitudinal extension of a tape storage medium. Each data track has a width and each data reader has a width that exceeds the width of a data track. In the readback signal, of one of the data readers of the set a simultaneous presence of two defined waveforms is detected stemming from two different servo patterns arranged in servo sections of adjacent data tracks of the set. At least one of lateral position, velocity, gain and timing information is derived from a measure of the energy of the two defined waveforms detected in the readback signal of the data reader and applying this information in the operation of the tape storage system.

Claims15

Dependent claims

A tape storage medium, comprising:

at least one set of data tracks disposed along a longitudinal extension and adjacent to each other;
each data track of the set comprising data sections alternating with servo sections;
each servo section containing at least two different servo patterns, the servo sections of adjacent data tracks being offset from each other along the longitudinal extension of the tape storage medium and partly overlap;
and
each servo pattern representing a waveform when being read, and the different waveforms being orthogonal to each other.

2 more elements

A tape storage system, comprising:

a tape head assembly for reading data from a set of adjacent data tracks of a tape storage medium, each data track having a width, the tape head assembly further comprising:
a set of data readers configured to simultaneously read data from the data tracks of the set;
wherein the width of each data reader of the set along a lateral extension of the tape head assembly exceeds the width of data track wherein the lateral extension of the tape head assembly is orthogonal to a longitudinal extension of the tape storage medium when being arranged in a tape drive containing the tape head assembly spanning at least the set of data tracks during reading;
each data track of the set comprising data sections alternating with servo sections;
each servo section containing at least two different servo patterns, the servo sections of adjacent data tracks being offset from each other along the longitudinal extension of the tape storage medium and partly overlap;
and
each servo pattern representing a waveform when being read, and the different waveforms being orthogonal to each other.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

14/608,508Filed 29 Jan 2015

Priority

GB 1317262.230 Sep 2013

Published

28 May 2015

Term ends

Not estimatedThe source records don’t support an estimate.

Classification4 codes

G11B 20/1202
On tapes: with longitudinal tracks only
G11B 5/00826
Using stationary heads: comprising a plurality of single poles or gaps or groups thereof operative at the same time
G11B 5/584
With provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing…: for…
G11B
Information storage based on relative movement between record carrier and transducer

Reading from a tape storage medium

Life of this patent

Reading from a tape storage medium

Life of this patent

Abstract

Claims15