NO873405L - Fremgangsmaate og apparat for magnetisk signaloverfoering. - Google Patents
Fremgangsmaate og apparat for magnetisk signaloverfoering.Info
- Publication number
- NO873405L NO873405L NO873405A NO873405A NO873405L NO 873405 L NO873405 L NO 873405L NO 873405 A NO873405 A NO 873405A NO 873405 A NO873405 A NO 873405A NO 873405 L NO873405 L NO 873405L
- Authority
- NO
- Norway
- Prior art keywords
- procedure
- signal transmission
- transmission apparatus
- magnetic signal
- magnetic
- Prior art date
Links
Classifications
-
- 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
- G11B5/245—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for controlling the reluctance of the magnetic circuit in a head with single gap, for co-operation with one track
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
-
- 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
- G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
- G11B15/1808—Driving of both record carrier and head
- G11B15/1875—Driving of both record carrier and head adaptations for special effects or editing
-
- 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
-
- 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
-
- 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
-
- 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
- G11B5/245—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for controlling the reluctance of the magnetic circuit in a head with single gap, for co-operation with one track
- G11B5/2452—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for controlling the reluctance of the magnetic circuit in a head with single gap, for co-operation with one track where the dimensions of the effective gap are controlled
-
- 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
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/49—Fixed mounting or arrangements, e.g. one head per track
- G11B5/4907—Details for scanning
-
- 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
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/49—Fixed mounting or arrangements, e.g. one head per track
- G11B5/4969—Details for track selection or addressing
-
- 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
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/52—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with simultaneous movement of head and record carrier, e.g. rotation of head
- G11B5/53—Disposition or mounting of heads on rotating support
-
- 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
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/584—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes
- G11B5/588—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes by controlling the position of the rotating heads
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Magnetic Heads (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
- Television Signal Processing For Recording (AREA)
- Liquid Crystal (AREA)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US80892485A | 1985-12-13 | 1985-12-13 | |
US80858885A | 1985-12-13 | 1985-12-13 | |
US06/829,592 US5119255A (en) | 1984-08-16 | 1986-02-13 | Magnetic saturation controlled scanning magnetic transducer |
US06/843,453 US5189572A (en) | 1984-08-16 | 1986-03-24 | Magnetic control of a transducer signal transfer zone to effect tracking of a path along a record medium |
PCT/US1986/002733 WO1987003729A1 (en) | 1985-12-13 | 1986-12-15 | Method and apparatus for magnetic transducing |
Publications (2)
Publication Number | Publication Date |
---|---|
NO873405D0 NO873405D0 (no) | 1987-08-13 |
NO873405L true NO873405L (no) | 1987-10-13 |
Family
ID=27505834
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO873406A NO873406L (no) | 1985-12-13 | 1987-08-13 | Fremgangsmaate og apparat som utnytter et stillestaaende mettbart legeme for signaloverfoering i forhold til et magnetisk lagringsmedium. |
NO873405A NO873405L (no) | 1985-12-13 | 1987-08-13 | Fremgangsmaate og apparat for magnetisk signaloverfoering. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO873406A NO873406L (no) | 1985-12-13 | 1987-08-13 | Fremgangsmaate og apparat som utnytter et stillestaaende mettbart legeme for signaloverfoering i forhold til et magnetisk lagringsmedium. |
Country Status (7)
Country | Link |
---|---|
US (1) | US5189572A (no) |
EP (1) | EP0248897A4 (no) |
JP (1) | JP2571805B2 (no) |
KR (1) | KR960016491B1 (no) |
AU (1) | AU595852B2 (no) |
NO (2) | NO873406L (no) |
WO (1) | WO1987003729A1 (no) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR960003655B1 (ko) * | 1985-12-13 | 1996-03-21 | 암펙크스 시스템즈 코오포레이션 | 자기 기록 매체에 있어서 고정 가포화 부재를 이용한 신호 전달 방법 및 장치 |
FR2648607B1 (fr) * | 1989-06-16 | 1995-12-15 | Thomson Csf | Tete magnetique integree d'enregistrement |
US5130876A (en) * | 1989-12-08 | 1992-07-14 | Ampex Corporation | Solid state scanning transducer that utilizes low flux densities |
NL9200515A (nl) * | 1992-03-20 | 1993-10-18 | Philips Nv | Elektrische machine, werkwijze voor het aan elkaar bevestigen van een zacht-magnetisch lichaam en een hard-magnetisch lichaam en werkwijze voor het aan elkaar bevestigen van twee hard-magnetische lichamen. |
AU4984196A (en) * | 1995-02-15 | 1996-09-04 | Velocidata, Inc. | Magnetic recording reproduction system employing a variable reluctance gap shunt |
EP0780833A3 (en) * | 1995-12-20 | 1999-01-07 | Ampex Corporation | Improved magnetic recording system having a saturable layer and detection using MR element |
US5729413A (en) * | 1995-12-20 | 1998-03-17 | Ampex Corporation | Two-gap magnetic read/write head |
US5830590A (en) * | 1996-06-28 | 1998-11-03 | Ampex Corporation | Magnetic storage and reproducing system with a low permeability keeper and a self-biased magnetoresistive reproduce head |
US5861220A (en) * | 1996-08-06 | 1999-01-19 | Ampex Corporation | Method and apparatus for providing a magnetic storage and reproducing media with a keeper layer having a longitudinal anisotropy |
US5843565A (en) * | 1996-10-31 | 1998-12-01 | Ampex Corporation | Particulate magnetic medium utilizing keeper technology and methods of manufacture |
US6381088B1 (en) | 1998-11-06 | 2002-04-30 | Acorn Technologies, Inc. | Apparatus for developing a dynamic servo signal from data in a magnetic disc drive and method |
USRE40413E1 (en) * | 1998-11-06 | 2008-07-01 | Purchased Patent Management Llc | Method and apparatus for developing a dynamic servo signal from data |
US6545836B1 (en) | 1999-11-12 | 2003-04-08 | Acorn Technologies, Inc. | Servo control apparatus and method using absolute value input signals |
US6594103B1 (en) | 1999-11-12 | 2003-07-15 | Acorn Technologies, Inc. | Read channel generating absolute value servo signal |
US20030163294A1 (en) * | 2002-01-14 | 2003-08-28 | Ping-Ho Chen | Method for reducing the size in designing a servo system simulation program configured in a programmable calculator |
JP4081811B2 (ja) * | 2002-09-10 | 2008-04-30 | ソニー株式会社 | 記録/再生装置および方法、記録媒体、並びにプログラム |
JP2005276359A (ja) * | 2004-03-25 | 2005-10-06 | Sony Corp | 磁気ヘッド装置、回転ヘッド装置、磁気テープ装置、磁気ディスク装置、磁気記録方法 |
US6956709B1 (en) * | 2004-06-07 | 2005-10-18 | Storage Technology Corporation | Write velocity identification in a PRML system |
US20080068750A1 (en) * | 2006-09-19 | 2008-03-20 | International Business Machines Corporation | Planar Write Module And Hybrid Planar Write-Vertical Read Bidirectional Tape Head |
US7978429B2 (en) * | 2006-09-19 | 2011-07-12 | International Business Machines Corporation | Low track pitch write module and bidirectional tape head |
US20080068752A1 (en) * | 2006-09-19 | 2008-03-20 | International Business Machines Corporation | Planar Bidirectional Tape Head With Planar Read And Write Elements |
WO2009021025A2 (en) * | 2007-08-07 | 2009-02-12 | Kinkisharyo International, Llc | Non-contact ethernet link with bidirectional transducer |
US20100073808A1 (en) * | 2008-09-23 | 2010-03-25 | Seagate Technology Llc | Position sensing in discrete track recording |
US8559123B2 (en) * | 2010-06-14 | 2013-10-15 | Tdk Corporation | Magnetic recording device, magnetic recording method and magnetic recording medium for shingle write scheme |
US8824100B2 (en) * | 2011-05-20 | 2014-09-02 | Seagate Technology Llc | Overcoats that include magnetic materials |
RU2628735C1 (ru) * | 2016-03-29 | 2017-08-21 | Федеральное государственное унитарное предприятие "Крыловский государственный научный центр" (ФГУП "Крыловский государственный научный центр") | Накладной феррозондовый шунт |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3152225A (en) * | 1958-06-11 | 1964-10-06 | Sylvania Electric Prod | Magnetic tape transducer |
US3106617A (en) * | 1958-12-24 | 1963-10-08 | Rca Corp | Magnetic recording and reproducing head |
US3079468A (en) * | 1958-12-24 | 1963-02-26 | Rca Corp | Magnetic recording and reproducing |
US3382325A (en) * | 1959-08-20 | 1968-05-07 | Iit Res Inst | Magnetic transducer system |
US3175049A (en) * | 1960-07-15 | 1965-03-23 | Minnesota Mining & Mfg | Magnetic scanning head |
US3188399A (en) * | 1960-11-28 | 1965-06-08 | Ampex | Magnetic transducing assembly |
DE1144324B (de) * | 1961-09-08 | 1963-02-28 | Telefunken Patent | Vorrichtung zur magnetischen Aufzeichnung von Fernsehbild- und -tonsignalen |
US3314056A (en) * | 1962-10-02 | 1967-04-11 | Honeywell Inc | Gapless magnetic head |
US3391254A (en) * | 1964-10-15 | 1968-07-02 | William M. Honig | Magnetic head with means for producing a shiftable high permeability region in a magnetic permeable material |
US3435440A (en) * | 1965-01-04 | 1969-03-25 | Ibm | Null sweeping head |
GB1163283A (en) * | 1965-09-22 | 1969-09-04 | Nippon Columbia | Magnetic Head |
GB1174175A (en) * | 1967-07-14 | 1969-12-17 | Standard Telephones Cables Ltd | A magnetic recording apparatus |
US3555204A (en) * | 1968-01-12 | 1971-01-12 | Ibm | Electronic sweep magnetic scanning transducer |
JPS5217408B1 (no) * | 1969-07-02 | 1977-05-16 | ||
GB1411629A (en) * | 1971-12-14 | 1975-10-29 | Matsushita Electric Ind Co Ltd | Magnetic recording head and manufacture thereof |
US3893187A (en) * | 1973-03-20 | 1975-07-01 | Matsushita Electric Ind Co Ltd | Scanning magnetic head |
US4163993A (en) * | 1978-03-23 | 1979-08-07 | Ampex Corporation | Continuous slow motion automatic tracking system |
JPS5538649A (en) * | 1978-09-07 | 1980-03-18 | Sony Corp | Tracking unit of magnetic head |
US4318136A (en) * | 1980-02-13 | 1982-03-02 | Spin Physics, Inc. | Magnetic recording apparatus and method |
US4322763A (en) * | 1980-03-05 | 1982-03-30 | Spin Physics, Inc. | Magnetic head having a controllable high-permeability tunnel within a low-permeability sleeve |
US4426665A (en) * | 1980-04-08 | 1984-01-17 | Minnesota Mining And Manufacturing Company | Automatic track following feature for helical video recorder |
JPS56156924A (en) * | 1980-05-08 | 1981-12-03 | Sony Corp | Track following device |
US4530016A (en) * | 1982-07-16 | 1985-07-16 | Tokyo Shibaura Denki Kabushiki Kaisha | Magnetic recording and reproducing apparatus |
-
1986
- 1986-03-24 US US06/843,453 patent/US5189572A/en not_active Expired - Lifetime
- 1986-12-15 WO PCT/US1986/002733 patent/WO1987003729A1/en not_active Application Discontinuation
- 1986-12-15 JP JP62500564A patent/JP2571805B2/ja not_active Expired - Lifetime
- 1986-12-15 EP EP19870900561 patent/EP0248897A4/en not_active Withdrawn
- 1986-12-15 AU AU68363/87A patent/AU595852B2/en not_active Ceased
-
1987
- 1987-08-13 KR KR87700720A patent/KR960016491B1/ko not_active IP Right Cessation
- 1987-08-13 NO NO873406A patent/NO873406L/no unknown
- 1987-08-13 NO NO873405A patent/NO873405L/no unknown
Also Published As
Publication number | Publication date |
---|---|
NO873406D0 (no) | 1987-08-13 |
WO1987003729A1 (en) | 1987-06-18 |
JP2571805B2 (ja) | 1997-01-16 |
JPS63501989A (ja) | 1988-08-04 |
AU595852B2 (en) | 1990-04-12 |
AU6836387A (en) | 1987-06-30 |
NO873406L (no) | 1987-10-13 |
KR960016491B1 (en) | 1996-12-12 |
EP0248897A1 (en) | 1987-12-16 |
US5189572A (en) | 1993-02-23 |
NO873405D0 (no) | 1987-08-13 |
EP0248897A4 (en) | 1990-12-12 |
KR880700992A (ko) | 1988-04-13 |
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