AU562158B2 - Detection of clogging of gaps in rotary magnetic heads - Google Patents

Detection of clogging of gaps in rotary magnetic heads

Info

Publication number
AU562158B2
AU562158B2 AU26603/84A AU2660384A AU562158B2 AU 562158 B2 AU562158 B2 AU 562158B2 AU 26603/84 A AU26603/84 A AU 26603/84A AU 2660384 A AU2660384 A AU 2660384A AU 562158 B2 AU562158 B2 AU 562158B2
Authority
AU
Australia
Prior art keywords
heads
tape
head
scanning
gaps
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.)
Expired
Application number
AU26603/84A
Other languages
English (en)
Other versions
AU2660384A (en
Inventor
Koichi Nakayama
Toshiyuki Sado
Masakazu Sonoda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Publication of AU2660384A publication Critical patent/AU2660384A/en
Application granted granted Critical
Publication of AU562158B2 publication Critical patent/AU562158B2/en
Anticipated expiration legal-status Critical
Expired legal-status Critical Current

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
    • G11B15/12—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams
    • G11B15/14—Masking or switching periodically, e.g. of rotating heads
    • 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
    • G11B15/04—Preventing, inhibiting, or warning against accidental erasing or double recording
    • 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
    • G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing
    • 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
    • G11B5/455—Arrangements for functional testing of heads; Measuring arrangements for heads
AU26603/84A 1983-04-08 1984-04-06 Detection of clogging of gaps in rotary magnetic heads Expired AU562158B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP58-62704 1983-04-08
JP58062704A JPS59188822A (ja) 1983-04-08 1983-04-08 回転ヘツド式記録装置のクロツグ検出装置

Publications (2)

Publication Number Publication Date
AU2660384A AU2660384A (en) 1984-10-11
AU562158B2 true AU562158B2 (en) 1987-05-28

Family

ID=13207962

Family Applications (1)

Application Number Title Priority Date Filing Date
AU26603/84A Expired AU562158B2 (en) 1983-04-08 1984-04-06 Detection of clogging of gaps in rotary magnetic heads

Country Status (7)

Country Link
US (1) US4607297A (en, 2012)
EP (1) EP0125026B1 (en, 2012)
JP (1) JPS59188822A (en, 2012)
AT (1) ATE39315T1 (en, 2012)
AU (1) AU562158B2 (en, 2012)
CA (1) CA1221453A (en, 2012)
DE (1) DE3475686D1 (en, 2012)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0777053B2 (ja) * 1985-03-07 1995-08-16 三菱電機株式会社 磁気テープ装置
JPH0789405B2 (ja) * 1986-09-18 1995-09-27 ソニー株式会社 記録装置
JPS63275013A (ja) * 1987-05-01 1988-11-11 Sharp Corp 再生出力不良磁気ヘッドの判別方法
DE3916379C3 (de) * 1988-05-17 1994-12-15 Mitsubishi Electric Corp Magnetisches Aufzeichnungs- und Wiedergabegerät
US5193033A (en) * 1988-05-17 1993-03-09 Mitsubishi Denki Kabushiki Kaisha Magnetic recording and reproducing apparatus incorporating clogging detection
JPH0373405A (ja) * 1989-04-28 1991-03-28 Pioneer Electron Corp 回転ヘッド式ディジタル磁気記録再生装置
US5343334A (en) * 1990-02-28 1994-08-30 Sony Corporation Video tape that records, plays back, and rerecords video signals to overcome dropouts
KR940001539B1 (ko) * 1991-09-09 1994-02-23 삼성전자 주식회사 헤드의 이물 제거장치
JPH05166141A (ja) * 1991-12-17 1993-07-02 Mitsubishi Electric Corp 磁気記録再生装置
US5629814A (en) * 1993-01-27 1997-05-13 Goldstar Co., Ltd. Automatic tracking control apparatus and method
JPH06274839A (ja) 1993-03-23 1994-09-30 Minnesota Mining & Mfg Co <3M> ビデオカセットレコーダ要素クリーニングカセット
BE1008066A3 (nl) * 1994-02-03 1996-01-09 Koninkl Philips Electronics Nv Inrichting voor het bepalen van de schrijfkwaliteit tijdens magnetische recording.
DE69517007T2 (de) * 1994-10-31 2000-12-21 Koninklijke Philips Electronics N.V., Eindhoven Magnetband mit einer spurkonfiguration und damit arbeitendes gerät
JP2865002B2 (ja) * 1994-11-25 1999-03-08 日本ビクター株式会社 情報記録方法、磁気テープ及び情報記録再生方法
JP3039565U (ja) * 1997-01-14 1997-07-22 船井電機株式会社 磁気テープ再生装置
JP3520004B2 (ja) * 1999-12-10 2004-04-19 三洋電機株式会社 ビデオテープレコーダ
US9666217B1 (en) * 2016-02-18 2017-05-30 Dell Products L.P. Systems and methods for dynamically cleaning read/write head

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2055239B (en) * 1979-08-03 1983-03-30 Rca Corp Verification of video recording
US4489354A (en) * 1980-11-24 1984-12-18 Eastman Kodak Company Information recording system with recording process monitoring function
JPS57196673A (en) * 1981-05-29 1982-12-02 Hitachi Ltd Controller for joint for magnetic video recorder and reproducer
DE3278891D1 (en) * 1981-06-05 1988-09-15 Ibm I/o controller with a dynamically adjustable cache memory

Also Published As

Publication number Publication date
DE3475686D1 (en) 1989-01-19
EP0125026A3 (en) 1985-10-23
JPS59188822A (ja) 1984-10-26
CA1221453A (en) 1987-05-05
EP0125026A2 (en) 1984-11-14
JPH0427603B2 (en, 2012) 1992-05-12
AU2660384A (en) 1984-10-11
US4607297A (en) 1986-08-19
ATE39315T1 (de) 1988-12-15
EP0125026B1 (en) 1988-12-14

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired