JPS5564641A - Magnetic recorder - Google Patents

Magnetic recorder

Info

Publication number
JPS5564641A
JPS5564641A JP13858178A JP13858178A JPS5564641A JP S5564641 A JPS5564641 A JP S5564641A JP 13858178 A JP13858178 A JP 13858178A JP 13858178 A JP13858178 A JP 13858178A JP S5564641 A JPS5564641 A JP S5564641A
Authority
JP
Japan
Prior art keywords
bias
tape
signal
adjustment
automatic
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
JP13858178A
Other languages
Japanese (ja)
Other versions
JPS5944703B2 (en
Inventor
Hideo Inoue
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.)
Teac Corp
Original Assignee
Teac 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 Teac Corp filed Critical Teac Corp
Priority to JP53138581A priority Critical patent/JPS5944703B2/en
Publication of JPS5564641A publication Critical patent/JPS5564641A/en
Publication of JPS5944703B2 publication Critical patent/JPS5944703B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To use wastefully a tape for an automatic bias adjustment by generating a rewind control signal from a rewind control circuit corresponding to an automatic bias adjustment end signal.
CONSTITUTION: When a reference frequency signal recorded on tape 7 is regenerated and the regeneration output reaches a fixed level, a coincidence signal from level detector 14 makes an automatic adjustment of a recording bias current to the best value through bias control circuit 20 and variable bias oscillator 18. At the end of the automatic adjustment of this bias, line 61 connected to circuit 20 is inverted from a high level to low level and a low-level signal serves as a bias adjustment end signal to set FF44 by way of switch 62 and differentiating circuit 63. Until it is reset by a detection signal of the tape initial point, the tape is rewound by a reset output from FF44 and the reference frequency signal recorded at the bias adjustment is erased. Therefore, the tape is automatically rewound in response to the tape due to the automatic bias adjustment can be prevented.
COPYRIGHT: (C)1980,JPO&Japio
JP53138581A 1978-11-10 1978-11-10 magnetic recording device Expired JPS5944703B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53138581A JPS5944703B2 (en) 1978-11-10 1978-11-10 magnetic recording device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53138581A JPS5944703B2 (en) 1978-11-10 1978-11-10 magnetic recording device

Publications (2)

Publication Number Publication Date
JPS5564641A true JPS5564641A (en) 1980-05-15
JPS5944703B2 JPS5944703B2 (en) 1984-10-31

Family

ID=15225455

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53138581A Expired JPS5944703B2 (en) 1978-11-10 1978-11-10 magnetic recording device

Country Status (1)

Country Link
JP (1) JPS5944703B2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5133407U (en) * 1974-09-02 1976-03-11

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5133407U (en) * 1974-09-02 1976-03-11

Also Published As

Publication number Publication date
JPS5944703B2 (en) 1984-10-31

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