JPS54155021A - Automatic controller for recording sensitivity of magnetic sound recorder reproducer - Google Patents
Automatic controller for recording sensitivity of magnetic sound recorder reproducerInfo
- 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
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
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)
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 |
-
1978
- 1978-05-28 JP JP6360878A patent/JPS6010363B2/en not_active Expired
Cited By (2)
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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