GB1365851A - Testrecord and method of test for magnetic recording equipment - Google Patents

Testrecord and method of test for magnetic recording equipment

Info

Publication number
GB1365851A
GB1365851A GB43373A GB43373A GB1365851A GB 1365851 A GB1365851 A GB 1365851A GB 43373 A GB43373 A GB 43373A GB 43373 A GB43373 A GB 43373A GB 1365851 A GB1365851 A GB 1365851A
Authority
GB
United Kingdom
Prior art keywords
test
magnetic recording
jan
testrecord
recording equipment
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
GB43373A
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.)
Forshtator G M
Ljudmirsky M L
Shkurovich Y S
Original Assignee
Forshtator G M
Ljudmirsky M L
Shkurovich Y S
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 Forshtator G M, Ljudmirsky M L, Shkurovich Y S filed Critical Forshtator G M
Publication of GB1365851A publication Critical patent/GB1365851A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum

Landscapes

  • Recording Or Reproducing By Magnetic Means (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

1365851 Testing magnetic recording and playback apparatus M L LJUDMIRSKY G M FORSHTATOR and Y S SHKUROVICH 3 Jan 1973 [3 Jan 1972] 433/73 Heading G5R A test record comprises a periodically recurring sequence of recorded signals of different frequencies, the rate of recurrence of the sequence being such as to yield an apparently unfiickering pattern on the screen of an oscilloscope connected to the playback channel being tested. The test frequencies may be spaced over the intended frequency range of the apparatus, or grouped round an expected minimum response point to check the head gap.
GB43373A 1972-01-03 1973-01-03 Testrecord and method of test for magnetic recording equipment Expired GB1365851A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1728995 1972-01-03

Publications (1)

Publication Number Publication Date
GB1365851A true GB1365851A (en) 1974-09-04

Family

ID=20497388

Family Applications (1)

Application Number Title Priority Date Filing Date
GB43373A Expired GB1365851A (en) 1972-01-03 1973-01-03 Testrecord and method of test for magnetic recording equipment

Country Status (8)

Country Link
DD (1) DD102231A1 (en)
DE (1) DE2300190B2 (en)
FR (1) FR2167615B1 (en)
GB (1) GB1365851A (en)
HU (1) HU172262B (en)
IT (1) IT977987B (en)
NL (1) NL163886C (en)
PL (1) PL82359B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4491881A (en) * 1982-02-01 1985-01-01 Verbatim Corporation Calibrated drop-out disk

Also Published As

Publication number Publication date
FR2167615B1 (en) 1976-10-29
FR2167615A1 (en) 1973-08-24
DD102231A1 (en) 1973-12-12
NL163886C (en) 1980-10-15
DE2300190A1 (en) 1973-07-19
NL7300087A (en) 1973-07-05
IT977987B (en) 1974-09-20
HU172262B (en) 1978-07-28
NL163886B (en) 1980-05-16
PL82359B1 (en) 1975-10-31
DE2300190C3 (en) 1979-07-19
DE2300190B2 (en) 1978-11-09

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee