WO2002005269A3 - Helical scan tape track following - Google Patents
Helical scan tape track following Download PDFInfo
- Publication number
- WO2002005269A3 WO2002005269A3 PCT/US2001/021647 US0121647W WO0205269A3 WO 2002005269 A3 WO2002005269 A3 WO 2002005269A3 US 0121647 W US0121647 W US 0121647W WO 0205269 A3 WO0205269 A3 WO 0205269A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- synchronization patterns
- elements
- accessing
- relative
- read
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/02—Control of operating function, e.g. switching from recording to reproducing
- G11B15/026—Control of operating function, e.g. switching from recording to reproducing by using processor, e.g. microcomputer
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
- G11B27/107—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating tapes
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
- G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
- G11B27/322—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier used signal is digitally coded
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/008—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires
- G11B5/00813—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes
- G11B5/00847—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes on transverse tracks
- G11B5/0086—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes on transverse tracks using cyclically driven heads providing segmented tracks
Abstract
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2001276863A AU2001276863A1 (en) | 2000-07-11 | 2001-07-11 | Helical scan tape track following |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/613,932 US6512651B1 (en) | 2000-07-11 | 2000-07-11 | Helical scan tape track following |
US09/613,932 | 2000-07-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002005269A2 WO2002005269A2 (en) | 2002-01-17 |
WO2002005269A3 true WO2002005269A3 (en) | 2002-08-29 |
Family
ID=24459260
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2001/021647 WO2002005269A2 (en) | 2000-07-11 | 2001-07-11 | Helical scan tape track following |
Country Status (3)
Country | Link |
---|---|
US (1) | US6512651B1 (en) |
AU (1) | AU2001276863A1 (en) |
WO (1) | WO2002005269A2 (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7116514B2 (en) * | 2003-10-20 | 2006-10-03 | Quantum Corporation | Methods and systems for magnetic recording |
US7136255B2 (en) * | 2003-10-20 | 2006-11-14 | Quantum Corporation | Servo methods and systems using masked medium edge position sensors |
US7149050B2 (en) * | 2003-10-20 | 2006-12-12 | Quantum Corporation | Diffractive position sensors and control systems |
US7085095B2 (en) * | 2003-10-20 | 2006-08-01 | Quantum Corporation | Electromagnetic void-sensing probes and position control systems |
US7139152B2 (en) * | 2003-10-20 | 2006-11-21 | Quantum Corporation | Servo methods and systems using existing data structures and optical masks |
US7102845B2 (en) * | 2003-10-20 | 2006-09-05 | Quantum Corporation | Servo methods and systems using existing data structures and medium edge position |
US7158338B2 (en) * | 2004-05-24 | 2007-01-02 | Quantum Corporation | Servo track having periodic frames of tone field and embedded synchronization marks |
US7184233B2 (en) * | 2004-06-04 | 2007-02-27 | Quantum Corporation | Dual source tracking servo systems and associated methods |
US7298586B1 (en) * | 2004-09-07 | 2007-11-20 | Storage Technology Corporation | Thin-film read element with multiple read sensors |
US20060103968A1 (en) * | 2004-11-12 | 2006-05-18 | Jurneke Joe K | Dynamic skew compensation systems and associated methods |
US7499235B2 (en) | 2005-03-18 | 2009-03-03 | Quantum Corporation | Auto-servo tape system and associated recording head |
US20060285240A1 (en) * | 2005-06-16 | 2006-12-21 | Quantum Corporation | Environmental watch device for magnetic storage |
US7362525B2 (en) * | 2005-07-22 | 2008-04-22 | Quantum Corporation | PRML based magnetic servo position demodulator |
US7428118B2 (en) * | 2005-11-28 | 2008-09-23 | Quantum Corporation | LTM compensation methods and systems for magnetic servo writing |
US7826169B2 (en) * | 2007-04-25 | 2010-11-02 | Quantum Corporation | Servo error detection and compensation utilizing virtual data tracking servo methods |
US9858052B2 (en) * | 2013-03-21 | 2018-01-02 | Razer (Asia-Pacific) Pte. Ltd. | Decentralized operating system |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3678220A (en) * | 1971-05-26 | 1972-07-18 | Ibm | Angulated positioning marks for moving web |
EP0420374A2 (en) * | 1989-09-27 | 1991-04-03 | Archive Corporation | Method to compensate for tape slope and head azimuth errors |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0067061B1 (en) | 1981-06-08 | 1986-10-01 | Hitachi, Ltd. | Azimuthal magnetic recording and reproducing apparatus |
US5321570A (en) | 1989-10-02 | 1994-06-14 | Behr Michael I | Systems using superimposed, orthogonal buried servo signals |
US5566032A (en) | 1991-11-12 | 1996-10-15 | Storage Technology Corporation | Method for utilizing a longitudinal track on a helical scan tape data storage system to provide a fast search capability |
US5369641A (en) | 1991-11-12 | 1994-11-29 | Storage Technology Corporation | Method and apparatus for detecting and correcting errors in data on magnetic tape media |
US5325370A (en) | 1991-11-12 | 1994-06-28 | Storage Technology Corporation | Method and apparatus for recording data on magnetic tape media |
US5371638A (en) | 1992-06-24 | 1994-12-06 | Digital Equipment Corporation | Servo method and apparatus for very high track density magnetic recording by adjusting head position based on servo information read from adjacent track |
US5307217A (en) | 1992-06-24 | 1994-04-26 | Digital Equipment Corporation | Magnetic head for very high track density magnetic recording |
US5432655A (en) * | 1993-04-22 | 1995-07-11 | Matsushita Electric Industrial Co., Ltd. | Multiple channel magnetic recording and reproducing apparatus |
US5478021A (en) | 1993-10-05 | 1995-12-26 | Storage Technology Corporation | Apparatus and method for optimized threading of a tape along a curvilinear tape path |
US5822491A (en) * | 1995-12-28 | 1998-10-13 | Victor Company Of Japan, Ltd. | Track deviation measuring method and track deviation measuring apparatus |
US6078459A (en) * | 1996-03-05 | 2000-06-20 | Sony Corporation | Tracking controller for a tape-like recording medium |
-
2000
- 2000-07-11 US US09/613,932 patent/US6512651B1/en not_active Expired - Lifetime
-
2001
- 2001-07-11 WO PCT/US2001/021647 patent/WO2002005269A2/en active Application Filing
- 2001-07-11 AU AU2001276863A patent/AU2001276863A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3678220A (en) * | 1971-05-26 | 1972-07-18 | Ibm | Angulated positioning marks for moving web |
EP0420374A2 (en) * | 1989-09-27 | 1991-04-03 | Archive Corporation | Method to compensate for tape slope and head azimuth errors |
Also Published As
Publication number | Publication date |
---|---|
AU2001276863A1 (en) | 2002-01-21 |
US6512651B1 (en) | 2003-01-28 |
WO2002005269A2 (en) | 2002-01-17 |
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