Global patent index - EP 1075694 A1

EP 1075694 A1 2001-02-14 - TAPE SERVO PATTERN WITH ENHANCED SYNCHRONIZATION PROPERTIES

Title (en)

TAPE SERVO PATTERN WITH ENHANCED SYNCHRONIZATION PROPERTIES

Title (de)

BAND-SERVOMUSTER MIT VERBESSERTEN SYNCHRONISATIONSEIGENSCHAFTEN

Title (fr)

STRUCTURE DE POSITIONNEUR A BANDE MAGNETIQUE AYANT DES PROPRIETES AMELIOREES DE SYNCHRONISATION

Publication

EP 1075694 A1 (EN)

Application

EP 98913303 A

Priority

US 9806259 W

Abstract (en)

[origin: WO9950840A1] A magnetic tape servo pattern with different frequency signals is written on a magnetic tape to define the frame boundary. A significantly different frequency field is used to signal the transition from one frame to the next. Servo stripes (13) are written onto tape (11). A first frequency signal is written on a first area (27) and a second frequency signal is written on a second area (28). The first and second frequency signals are alternately written onto servo stripe in successive frames (14, 15). A third frequency signal is written in a predetermined band pattern in each frame over the second area.

IPC 1-7 (main, further and additional classification)

G11B 5/596; G11B 5/09

IPC 8 full level (invention and additional information)

G11B 5/09 (2006.01); G11B 5/584 (2006.01); G11B 27/30 (2006.01)

CPC (invention and additional information)

G11B 27/30 (2013.01); G11B 5/584 (2013.01); G11B 2220/90 (2013.01)

Designated contracting state (EPC)

DE

EPO simple patent family

WO 9950840 A1 19991007; EP 1075694 A1 20010214; EP 1075694 A4 20020417; EP 1271477 A1 20030102; EP 1271477 B1 20060301; JP 2002510114 A 20020402

INPADOC legal status

2002-09-11 [18W] WITHDRAWN

- Ref Legal Event Code: 18W

- Date of withdrawal: 20020723

2002-04-17 [A4] SUPPLEMENTARY SEARCH REPORT

- Ref Legal Event Code: A4

- Effective date: 20020301

2002-04-17 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE

2001-04-11 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: IMATION CORP.

- Ref Legal Event Code: RAP1

2001-02-14 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000921

2001-02-14 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE