JPS5548817A - Detection method of optimum recording bias for magnetic recording and reproducing unit - Google Patents

Detection method of optimum recording bias for magnetic recording and reproducing unit

Info

Publication number
JPS5548817A
JPS5548817A JP12289678A JP12289678A JPS5548817A JP S5548817 A JPS5548817 A JP S5548817A JP 12289678 A JP12289678 A JP 12289678A JP 12289678 A JP12289678 A JP 12289678A JP S5548817 A JPS5548817 A JP S5548817A
Authority
JP
Japan
Prior art keywords
recording
level
bias
recording bias
optimum
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
JP12289678A
Other languages
Japanese (ja)
Other versions
JPS6019565B2 (en
Inventor
Akira Inomata
Tsunao Hasegawa
Yasushi Otake
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic 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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP12289678A priority Critical patent/JPS6019565B2/en
Publication of JPS5548817A publication Critical patent/JPS5548817A/en
Publication of JPS6019565B2 publication Critical patent/JPS6019565B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE:To automatically detect the optimum recording bias by sweeping the recording bias through the recording level set to a given level. CONSTITUTION:After the recording bias set circuit 8 is set to the standard level of tape, the recording level set circuit 4 is controlled with the control output of the decoder 19 and to recording level is set so that the repeoducing signal level is the standard level. The recording bias set circuit 8 sequentially changes the recording bias between the upper and lower limits with the control signal of the decoder 9 by receiving the signal for the end of set. The maximum value of the reproducing level in this case is obtained and the recording bias corresponding to this is taken as the optimum recording bias. Further, this is made under the control of the computer 20. Thus, the optimum recording bias to various tapes can automatically be detected.
JP12289678A 1978-10-04 1978-10-04 Optimal recording bias detection method for magnetic recording and playback equipment Expired JPS6019565B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12289678A JPS6019565B2 (en) 1978-10-04 1978-10-04 Optimal recording bias detection method for magnetic recording and playback equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12289678A JPS6019565B2 (en) 1978-10-04 1978-10-04 Optimal recording bias detection method for magnetic recording and playback equipment

Publications (2)

Publication Number Publication Date
JPS5548817A true JPS5548817A (en) 1980-04-08
JPS6019565B2 JPS6019565B2 (en) 1985-05-16

Family

ID=14847300

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12289678A Expired JPS6019565B2 (en) 1978-10-04 1978-10-04 Optimal recording bias detection method for magnetic recording and playback equipment

Country Status (1)

Country Link
JP (1) JPS6019565B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6375996A (en) * 1986-09-19 1988-04-06 株式会社日立製作所 Sheet paper handler
JPS63258381A (en) * 1987-04-16 1988-10-25 北原　一孝 Controller for position of stoppage of elevator

Also Published As

Publication number Publication date
JPS6019565B2 (en) 1985-05-16

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