JPS5525876A - Magnetic recording reproducer - Google Patents

Magnetic recording reproducer

Info

Publication number
JPS5525876A
JPS5525876A JP9902478A JP9902478A JPS5525876A JP S5525876 A JPS5525876 A JP S5525876A JP 9902478 A JP9902478 A JP 9902478A JP 9902478 A JP9902478 A JP 9902478A JP S5525876 A JPS5525876 A JP S5525876A
Authority
JP
Japan
Prior art keywords
circuit
tape
recording
recording compensation
recorded
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.)
Pending
Application number
JP9902478A
Other languages
Japanese (ja)
Inventor
Toru Sanbe
Naoya Fujita
Masamichi Yamada
Shigemitsu Higuchi
Koichi Tomatsuri
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP9902478A priority Critical patent/JPS5525876A/en
Priority to DE2933004A priority patent/DE2933004C2/en
Publication of JPS5525876A publication Critical patent/JPS5525876A/en
Priority to US06/383,958 priority patent/US4422108A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Amplification And Gain Control (AREA)

Abstract

PURPOSE: To obtain the best recording compensation value corresponding to a tape to be used automatically and invariably by recording and regenerating several reference signals differing in frequency and by calculating the outputs.
CONSTITUTION: To compensate tape sensitivity prior to recording, signals of 1KHz, etc., is outputted from reference signal generator 12 and recorded. At this time, variable gain circuit 9 and middle-band and high-band recording compensation circuits 10 and 11 are previously given data of a standard tape as a standard control signal by control circuit 20. Next, a regenerated signal, after being detected and figitized, is inputted to operator 18 of computer 21 and compared with reference values in memory 19, so that it will be calculated how many steps the gain of circuit 9 should be adjusted to obtain an aimed regeneration output by compensating the sensitivity of the tape. Then, required control data are recorded on memory 19 and supplied as a control signal to circuit 9 via circuit 20. Next, the same process is performed as to middle and high bands, thereby obtaining the best recording compensation value.
COPYRIGHT: (C)1980,JPO&Japio
JP9902478A 1978-08-16 1978-08-16 Magnetic recording reproducer Pending JPS5525876A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP9902478A JPS5525876A (en) 1978-08-16 1978-08-16 Magnetic recording reproducer
DE2933004A DE2933004C2 (en) 1978-08-16 1979-08-14 Tape recorder with improved frequency response equalization
US06/383,958 US4422108A (en) 1978-08-16 1982-06-01 Tape recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9902478A JPS5525876A (en) 1978-08-16 1978-08-16 Magnetic recording reproducer

Publications (1)

Publication Number Publication Date
JPS5525876A true JPS5525876A (en) 1980-02-23

Family

ID=14235663

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9902478A Pending JPS5525876A (en) 1978-08-16 1978-08-16 Magnetic recording reproducer

Country Status (1)

Country Link
JP (1) JPS5525876A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0426441A (en) * 1990-05-22 1992-01-29 Juki Corp Button supply device
US5416649A (en) * 1991-04-12 1995-05-16 Ampex Corporation Single channel method and apparatus for automatically optimizing insert editing in a signal recorder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0426441A (en) * 1990-05-22 1992-01-29 Juki Corp Button supply device
US5416649A (en) * 1991-04-12 1995-05-16 Ampex Corporation Single channel method and apparatus for automatically optimizing insert editing in a signal recorder

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