JPS54155021A - Automatic controller for recording sensitivity of magnetic sound recorder reproducer - Google Patents

Automatic controller for recording sensitivity of magnetic sound recorder reproducer

Info

Publication number
JPS54155021A
JPS54155021A JP6360878A JP6360878A JPS54155021A JP S54155021 A JPS54155021 A JP S54155021A JP 6360878 A JP6360878 A JP 6360878A JP 6360878 A JP6360878 A JP 6360878A JP S54155021 A JPS54155021 A JP S54155021A
Authority
JP
Japan
Prior art keywords
signal
level
circuit
reproduced
tape
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
JP6360878A
Other languages
Japanese (ja)
Other versions
JPS6010363B2 (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 JP6360878A priority Critical patent/JPS6010363B2/en
Priority to US06/041,821 priority patent/US4258397A/en
Priority to GB7918278A priority patent/GB2023906B/en
Priority to DE2921637A priority patent/DE2921637C2/en
Publication of JPS54155021A publication Critical patent/JPS54155021A/en
Publication of JPS6010363B2 publication Critical patent/JPS6010363B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a constant level for a reproduced signal despite the scatter in the recording sensitivity of different tapes, by controlling the level of recording on each tape so that the integrated value of the level of reference signal reproduced from the tape is almost equal to a prescribed value.
CONSTITUTION: A switch SW for changing an input signal and the reference signal for each other depending on a signal from a controller LA, an attenuator VA for controlling the level of the signal depending on a control signal W, a circuit Det for detecting the level of the signal reproduced from the magnetic tape, a circuit IA for integrating the output of the circuit Det, and a comparator circuit CM which compares the output of the circuit IA with a reference value to apply an integration end signal t to the controller LA are provided. The reference signal is recorded on the tape. The level of the recorded signal is automatically regulated by the attenuator VA so that the integrated value of the level of the reproduced signal almost coincides with the prescribed value.
COPYRIGHT: (C)1979,JPO&Japio
JP6360878A 1978-05-28 1978-05-28 Automatic recording sensitivity adjustment device for magnetic recording and playback devices Expired JPS6010363B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP6360878A JPS6010363B2 (en) 1978-05-28 1978-05-28 Automatic recording sensitivity adjustment device for magnetic recording and playback devices
US06/041,821 US4258397A (en) 1978-05-28 1979-05-23 Automatic recording level controlling circuit
GB7918278A GB2023906B (en) 1978-05-28 1979-05-25 Automatic recording level controlling circuit
DE2921637A DE2921637C2 (en) 1978-05-28 1979-05-28 Magnetic recording device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6360878A JPS6010363B2 (en) 1978-05-28 1978-05-28 Automatic recording sensitivity adjustment device for magnetic recording and playback devices

Publications (2)

Publication Number Publication Date
JPS54155021A true JPS54155021A (en) 1979-12-06
JPS6010363B2 JPS6010363B2 (en) 1985-03-16

Family

ID=13234168

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6360878A Expired JPS6010363B2 (en) 1978-05-28 1978-05-28 Automatic recording sensitivity adjustment device for magnetic recording and playback devices

Country Status (1)

Country Link
JP (1) JPS6010363B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5862882A (en) * 1981-10-09 1983-04-14 Victor Co Of Japan Ltd Magnetic recording and reproducing device having display function of frequency characteristic
JPS5862883A (en) * 1981-10-09 1983-04-14 Victor Co Of Japan Ltd Magnetic recording and reproducing device having display function of frequency characteristic

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5862882A (en) * 1981-10-09 1983-04-14 Victor Co Of Japan Ltd Magnetic recording and reproducing device having display function of frequency characteristic
JPS5862883A (en) * 1981-10-09 1983-04-14 Victor Co Of Japan Ltd Magnetic recording and reproducing device having display function of frequency characteristic

Also Published As

Publication number Publication date
JPS6010363B2 (en) 1985-03-16

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