AU680498B2 - Method and apparatus for noise reduction in magnetic media - Google Patents
Method and apparatus for noise reduction in magnetic media Download PDFInfo
- Publication number
- AU680498B2 AU680498B2 AU66263/94A AU6626394A AU680498B2 AU 680498 B2 AU680498 B2 AU 680498B2 AU 66263/94 A AU66263/94 A AU 66263/94A AU 6626394 A AU6626394 A AU 6626394A AU 680498 B2 AU680498 B2 AU 680498B2
- Authority
- AU
- Australia
- Prior art keywords
- signal
- magnetic medium
- noise
- recording
- source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
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Classifications
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- G07F7/086—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means by passive credit-cards adapted therefor, e.g. constructive particularities to avoid counterfeiting, e.g. by inclusion of a physical or chemical security-layer
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- G11B20/24—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing noise
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- G11B21/00—Head arrangements not specific to the method of recording or reproducing
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- G11B21/106—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following on disks
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- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
- G11B5/027—Analogue recording
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- 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
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- 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
- G11B5/596—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 disks
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- 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
- G11B5/488—Disposition of heads
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Theoretical Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Artificial Intelligence (AREA)
- Multimedia (AREA)
- Technology Law (AREA)
- Digital Magnetic Recording (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US208997 | 1988-06-17 | ||
| US08/046,040 US5365586A (en) | 1993-04-09 | 1993-04-09 | Method and apparatus for fingerprinting magnetic media |
| US08/046,071 US5587654A (en) | 1993-04-09 | 1993-04-09 | Method and apparatus for noise reduction in magnetic media recordings |
| US046071 | 1993-04-09 | ||
| US046040 | 1993-04-09 | ||
| US20899794A | 1994-03-10 | 1994-03-10 | |
| PCT/US1994/003722 WO1994024639A1 (fr) | 1993-04-09 | 1994-04-05 | Procede et appareil de reduction du bruit dans des supports magnetiques |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU6626394A AU6626394A (en) | 1994-11-08 |
| AU680498B2 true AU680498B2 (en) | 1997-07-31 |
Family
ID=27366826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU66263/94A Ceased AU680498B2 (en) | 1993-04-09 | 1994-04-05 | Method and apparatus for noise reduction in magnetic media |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0693202A1 (fr) |
| JP (1) | JPH08508842A (fr) |
| AU (1) | AU680498B2 (fr) |
| CA (1) | CA2159800A1 (fr) |
| IL (1) | IL109208A0 (fr) |
| WO (1) | WO1994024639A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5959794A (en) * | 1993-04-09 | 1999-09-28 | Washington University | Method for precompensating signals for magnetic media noise |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4806740A (en) * | 1986-09-19 | 1989-02-21 | Light Signatures, Inc. | Magnetic characteristic identification system |
| US4837426A (en) * | 1987-01-16 | 1989-06-06 | Rand, Mcnally & Company | Object verification apparatus and method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58196606A (ja) * | 1982-05-11 | 1983-11-16 | Shigeaki Morita | 磁気テ−プレコ−ダ−のテ−プ雑音消去方法 |
| JPS59127209A (ja) * | 1983-01-08 | 1984-07-23 | Oki Electric Ind Co Ltd | 磁気媒体読出し時の外来ノイズ除去方法 |
| WO1994024669A1 (fr) * | 1993-04-09 | 1994-10-27 | Washington University | Tete d'enregistrement magnetique dotee d'un servomecanisme d'asservissement a la piste controle de maniere continue |
| US5408505A (en) * | 1993-04-09 | 1995-04-18 | Washington University | Method and apparatus for process control, tension control, and testing of magnetic media |
-
1994
- 1994-04-04 IL IL10920894A patent/IL109208A0/xx unknown
- 1994-04-05 JP JP6523277A patent/JPH08508842A/ja active Pending
- 1994-04-05 WO PCT/US1994/003722 patent/WO1994024639A1/fr not_active Application Discontinuation
- 1994-04-05 AU AU66263/94A patent/AU680498B2/en not_active Ceased
- 1994-04-05 CA CA002159800A patent/CA2159800A1/fr not_active Abandoned
- 1994-04-05 EP EP94914041A patent/EP0693202A1/fr not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4806740A (en) * | 1986-09-19 | 1989-02-21 | Light Signatures, Inc. | Magnetic characteristic identification system |
| US4837426A (en) * | 1987-01-16 | 1989-06-06 | Rand, Mcnally & Company | Object verification apparatus and method |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0693202A1 (fr) | 1996-01-24 |
| EP0693202A4 (fr) | 1996-02-07 |
| AU6626394A (en) | 1994-11-08 |
| WO1994024639A1 (fr) | 1994-10-27 |
| CA2159800A1 (fr) | 1994-10-27 |
| JPH08508842A (ja) | 1996-09-17 |
| IL109208A0 (en) | 1994-10-07 |
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