JPH0419508B2 - - Google Patents

Info

Publication number
JPH0419508B2
JPH0419508B2 JP55153696A JP15369680A JPH0419508B2 JP H0419508 B2 JPH0419508 B2 JP H0419508B2 JP 55153696 A JP55153696 A JP 55153696A JP 15369680 A JP15369680 A JP 15369680A JP H0419508 B2 JPH0419508 B2 JP H0419508B2
Authority
JP
Japan
Prior art keywords
channel
test
input
recorder
channels
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
JP55153696A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5673352A (en
Inventor
Etsuchi Satarin Fuiritsupu
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.)
Ampex Corp
Original Assignee
Ampex 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 Ampex Corp filed Critical Ampex Corp
Publication of JPS5673352A publication Critical patent/JPS5673352A/ja
Publication of JPH0419508B2 publication Critical patent/JPH0419508B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1816—Testing
    • G11B20/182—Testing using test patterns

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Tests Of Electronic Circuits (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
JP15369680A 1979-10-31 1980-10-31 Testing control circuit for multichannel device such as tape recorder Granted JPS5673352A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/090,050 US4333177A (en) 1979-10-31 1979-10-31 Test control circuit for multichannel apparatus such as tape recorders and the like

Publications (2)

Publication Number Publication Date
JPS5673352A JPS5673352A (en) 1981-06-18
JPH0419508B2 true JPH0419508B2 (OSRAM) 1992-03-30

Family

ID=22221032

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15369680A Granted JPS5673352A (en) 1979-10-31 1980-10-31 Testing control circuit for multichannel device such as tape recorder

Country Status (8)

Country Link
US (1) US4333177A (OSRAM)
JP (1) JPS5673352A (OSRAM)
BE (1) BE885936A (OSRAM)
CA (1) CA1149935A (OSRAM)
DE (1) DE3041172C2 (OSRAM)
FR (1) FR2468969A1 (OSRAM)
GB (1) GB2063492B (OSRAM)
NL (1) NL8005968A (OSRAM)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5001568A (en) * 1982-01-12 1991-03-19 Discovision Associates Signal evaluation by accumulation at one rate and releasing and testing at a slower rate
US4682246A (en) * 1982-01-12 1987-07-21 Discovision Associates Characterizing the information transfer characteristics of a recording medium
US4641207A (en) * 1983-03-22 1987-02-03 Green George D Diagnostic device and method for examining the operation of a disk drive
US4612586A (en) * 1984-06-05 1986-09-16 Memorex Corporation Method for measuring timing asymmetry in a magnetic storage system
JPS6125230A (ja) * 1984-07-13 1986-02-04 Sony Corp Ｉｃ装置
US4578719A (en) * 1984-12-06 1986-03-25 Robert Bosch Gmbh Tracking error recognition in reproduced digital signals
US4725968A (en) * 1985-05-14 1988-02-16 Nicolet Instrument Corporation Disk drive testing method and apparatus
JPH0827320B2 (ja) * 1987-01-21 1996-03-21 松下電器産業株式会社 信号発生制御装置
US4922184A (en) * 1988-08-29 1990-05-01 Control Data Corporation Apparatus and process for the simultaneous continuity sensing of multiple circuits
DE19739380A1 (de) * 1997-09-09 1999-03-11 Abb Research Ltd Verfahren zum Test eines Leitsystems
JP3744709B2 (ja) * 1999-02-05 2006-02-15 ローム株式会社 磁気記録再生装置及びそのドライブ用半導体集積回路装置
US7134068B2 (en) * 2003-12-04 2006-11-07 Seagate Technology Llc Channel processing data without leading sync mark
CN107356859B (zh) * 2017-06-09 2021-12-10 上海航空电器有限公司 多路音频电路bit测试电路及方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE633599A (OSRAM) * 1962-06-20
US3522532A (en) * 1965-10-21 1970-08-04 Mc Donnell Douglas Corp Comparison system for testing points in a circuit using a multi-channel analog signal record and playback means
US3519761A (en) * 1968-03-07 1970-07-07 Ampex Record excitation optimization method and apparatus for rotary head magnetic tape recorders
US3686682A (en) * 1970-08-17 1972-08-22 Burroughs Corp Method and apparatus for testing magnetic disc files
JPS5115415B1 (OSRAM) * 1970-12-28 1976-05-17
US3831149A (en) * 1973-02-14 1974-08-20 Burroughs Corp Data monitoring apparatus including a plurality of presettable control elements for monitoring preselected signal combinations and other conditions
US4103338A (en) * 1977-02-28 1978-07-25 Xerox Corporation Self-diagnostic method and apparatus for disk drive
US4180203A (en) * 1977-09-30 1979-12-25 Westinghouse Electric Corp. Programmable test point selector circuit
US4142215A (en) * 1977-12-02 1979-02-27 The Telex Corporation Tape drive tester

Also Published As

Publication number Publication date
CA1149935A (en) 1983-07-12
FR2468969A1 (fr) 1981-05-08
GB2063492B (en) 1983-11-16
DE3041172A1 (de) 1981-09-03
BE885936A (fr) 1981-02-16
DE3041172C2 (de) 1982-11-25
US4333177A (en) 1982-06-01
NL8005968A (nl) 1981-06-01
GB2063492A (en) 1981-06-03
JPS5673352A (en) 1981-06-18
FR2468969B1 (OSRAM) 1984-01-06

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