JPS54155022A - Automatic controller for frequency characteristic of magnetic sound recorder reproducer - Google Patents

Automatic controller for frequency characteristic of magnetic sound recorder reproducer

Info

Publication number
JPS54155022A
JPS54155022A JP6360978A JP6360978A JPS54155022A JP S54155022 A JPS54155022 A JP S54155022A JP 6360978 A JP6360978 A JP 6360978A JP 6360978 A JP6360978 A JP 6360978A JP S54155022 A JPS54155022 A JP S54155022A
Authority
JP
Japan
Prior art keywords
signal
circuit
level
controller
reproduced
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
JP6360978A
Other languages
Japanese (ja)
Other versions
JPS6010366B2 (en
Inventor
Masatsugu Kitamura
Hideo Onoe
Masami Yamazaki
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP6360978A priority Critical patent/JPS6010366B2/en
Priority to US06/041,822 priority patent/US4279005A/en
Priority to GB7918274A priority patent/GB2025682B/en
Priority to DE2921556A priority patent/DE2921556C2/en
Publication of JPS54155022A publication Critical patent/JPS54155022A/en
Publication of JPS6010366B2 publication Critical patent/JPS6010366B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a constant level for a reproduced signal independently of the recroding sensitivitiy of different tapes, by compensating the high frequency parts of plural reference signals, recording these reference signals and controlling the level of a recording system so that the level of each reproduced referenced signal is equal to a prescribed value.
CONSTITUTION: A generator OSC for producing the different reference signals depending on a signal x from a controller LA, an attenuator VA for controlling the level of the recorded signal depending on a signal W from the controller LA, a circuit VHC for compensating the high frequency parts of the reference signals depending on a signal Z, a circuit Det for detecting the level of the reproduced signal, a circuit IA for integrating the output of the circuit Det, and a circuit CM which compares the output of the circuit IA with a reference value to apply an integration end signal to the controller LA are provided. The reference signal is recorded on the tape. The quantities regulated by the controller LA and the circuit VHC are altered so that the integrated value of the level of the reproduced reference signal is eqaul to the prescribed value.
COPYRIGHT: (C)1979,JPO&Japio
JP6360978A 1978-05-28 1978-05-28 Automatic frequency characteristic adjustment device for magnetic recording and playback devices Expired JPS6010366B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP6360978A JPS6010366B2 (en) 1978-05-28 1978-05-28 Automatic frequency characteristic adjustment device for magnetic recording and playback devices
US06/041,822 US4279005A (en) 1978-05-28 1979-05-23 Method and system for automatically providing flat frequency response to audio signals recorded on magnetic tapes
GB7918274A GB2025682B (en) 1978-05-28 1979-05-25 Method and system for automatically providing flat frequency response to audio signals recorded on magnetic tapes
DE2921556A DE2921556C2 (en) 1978-05-28 1979-05-28 Device for setting a tape recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6360978A JPS6010366B2 (en) 1978-05-28 1978-05-28 Automatic frequency characteristic adjustment device for magnetic recording and playback devices

Publications (2)

Publication Number Publication Date
JPS54155022A true JPS54155022A (en) 1979-12-06
JPS6010366B2 JPS6010366B2 (en) 1985-03-16

Family

ID=13234197

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6360978A Expired JPS6010366B2 (en) 1978-05-28 1978-05-28 Automatic frequency characteristic adjustment device for magnetic recording and playback devices

Country Status (1)

Country Link
JP (1) JPS6010366B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4956726A (en) * 1982-06-14 1990-09-11 Canon Kabushiki Kaisha Information signal reproducing apparatus in which control signal condition and information signal level are varied so as to correspond

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62201876U (en) * 1986-02-07 1987-12-23

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4956726A (en) * 1982-06-14 1990-09-11 Canon Kabushiki Kaisha Information signal reproducing apparatus in which control signal condition and information signal level are varied so as to correspond

Also Published As

Publication number Publication date
JPS6010366B2 (en) 1985-03-16

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