JPS54155022A - Automatic controller for frequency characteristic of magnetic sound recorder reproducer - Google Patents
Automatic controller for frequency characteristic of magnetic sound recorder reproducerInfo
- 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
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
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62201876U (en) * | 1986-02-07 | 1987-12-23 |
-
1978
- 1978-05-28 JP JP6360978A patent/JPS6010366B2/en not_active Expired
Cited By (1)
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS53111708A (en) | Vide signal reproducing circuit | |
JPS54155022A (en) | Automatic controller for frequency characteristic of magnetic sound recorder reproducer | |
JPS54155021A (en) | Automatic controller for recording sensitivity of magnetic sound recorder reproducer | |
JPS5321908A (en) | Phase control circuit for video tape recorder | |
JPS5582573A (en) | Tape speed discriminator for magnetic recording and reproducing unit | |
JPS5545154A (en) | Magnetic recording and reproducing device | |
JPS5517844A (en) | Frequency characteristic automatic adjustment unit of magnetic recorder and reproducing device | |
JPS5394911A (en) | Magnetic recorder-reproducer | |
JPS5528547A (en) | Magnetic recorder/reproducer | |
JPS5545145A (en) | Magnetic recording and reproducing device | |
JPS52102012A (en) | Signal recorder/reproducer by pcm system | |
JPS52102010A (en) | Signal recorder/reproducer by pcm system | |
JPS5584005A (en) | Magnetic recorder/reproducer | |
JPS5545178A (en) | Recording bias setter of magnetic recording and reproducing device | |
JPS54104308A (en) | Recorder-reproducer | |
JPS5511631A (en) | Magnetic recorder/reproducer | |
JPS5680823A (en) | Rotary head type magnetic picture recorder/reproducer | |
JPS55101112A (en) | Adjustment system of magnetic recording device | |
JPS558674A (en) | Recording system from record disc to recording tape | |
JPS5674821A (en) | Tracking control unit for magnetic tape device | |
JPS5616A (en) | Magnetic recording and reproducing unit | |
JPS5459809A (en) | Signal companding circuit | |
JPS55135381A (en) | Detection system for fixed position of magnetic recording tape | |
JPS5545131A (en) | Magnetic recording and reproducing device | |
JPS52147411A (en) | Magnetic record regnerator |