JPS54118206A - Magnetic recorder-reproducer - Google Patents

Magnetic recorder-reproducer

Info

Publication number
JPS54118206A
JPS54118206A JP2463578A JP2463578A JPS54118206A JP S54118206 A JPS54118206 A JP S54118206A JP 2463578 A JP2463578 A JP 2463578A JP 2463578 A JP2463578 A JP 2463578A JP S54118206 A JPS54118206 A JP S54118206A
Authority
JP
Japan
Prior art keywords
control
resonance frequency
respect
magnetic tape
flutter
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.)
Granted
Application number
JP2463578A
Other languages
Japanese (ja)
Other versions
JPS5843825B2 (en
Inventor
Kimimasa Shibata
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP53024635A priority Critical patent/JPS5843825B2/en
Publication of JPS54118206A publication Critical patent/JPS54118206A/en
Publication of JPS5843825B2 publication Critical patent/JPS5843825B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To reduce wow and flutter and jitter effectively by specifying the natural resonance frequency of the control system and the spring constant of magnetic tapes through specifying of the mass of a revolving roller.
CONSTITUTION: A closed loop control is formed with respect to the conveying speed of a magnetic tape 2 among magnetic tape 2, control head 13, rotating speed control circuit 22, motor 21, rubber belt 20, flywheel 19 and capstan 16 so as to maintain the phase of the control signal reproduced from the control head 13 constant at the reproducing. Here, if the resonance frequency f2 of the mass (m) of a revolving roller 5 and the spring constant (k) of the magnetic tape 2 is set at the relation of f1>f2 with respect 10 f1, control within the closed loop with respect to f2 becomes possible, as a result of which the wow and flutter and jitter at the reproducing based on the resonance frequency f2 do not appear.
COPYRIGHT: (C)1979,JPO&Japio
JP53024635A 1978-03-04 1978-03-04 magnetic recording and reproducing device Expired JPS5843825B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53024635A JPS5843825B2 (en) 1978-03-04 1978-03-04 magnetic recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53024635A JPS5843825B2 (en) 1978-03-04 1978-03-04 magnetic recording and reproducing device

Publications (2)

Publication Number Publication Date
JPS54118206A true JPS54118206A (en) 1979-09-13
JPS5843825B2 JPS5843825B2 (en) 1983-09-29

Family

ID=12143581

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53024635A Expired JPS5843825B2 (en) 1978-03-04 1978-03-04 magnetic recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS5843825B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60118606U (en) * 1984-01-20 1985-08-10 シ−ケ−デイ株式会社 Packaging punching device

Also Published As

Publication number Publication date
JPS5843825B2 (en) 1983-09-29

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