JPS57189310A - Magnetic recording and reproducing device - Google Patents
Magnetic recording and reproducing deviceInfo
- Publication number
- JPS57189310A JPS57189310A JP56073552A JP7355281A JPS57189310A JP S57189310 A JPS57189310 A JP S57189310A JP 56073552 A JP56073552 A JP 56073552A JP 7355281 A JP7355281 A JP 7355281A JP S57189310 A JPS57189310 A JP S57189310A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- tape
- pass filter
- recording
- adder
- 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
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/02—Analogue recording or reproducing
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Television Signal Processing For Recording (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
PURPOSE:To use a magnetic tape interchangeably, by correcting a difference of the frequency characteristics in case of recording and reproducing a signal, which is caused by a difference, etc. of thickness of a magnetic layer of the agnetic tape, by mixing and adding each signal to be recorded, and after that, switching the characteristics of a recording equalizer and the gain of a recording circuit. CONSTITUTION:A video signal from a video signal input terminal 10 is applied to an adder 4 through a low-pass filter 11, an FM modulator 12, a high-pass filter 13 and a sound signal carrier frequency removing circuit 14. A color signal is also applied to the adder 4 through a band-pass filter 21, a frequency converter 22, a low-pass filter 23 and a sound signal carrier frequency removing circuit 24. On the other hand, a sound signal is also applied to the adder through a terminal 30, an FM modulator 31, and a low-pass filter 32. The signal added and mixed by the adder 4 is inputted to the first recording equalizer 100, and corrects the frequency characteristics of a recording signal. A terminal 131 and a terminal 141 are conduction-controlled when a vapor-deposited tape is used, and when an oxide tape and a metallic tape are used, respectively, and a difference between the frequency characteristics of the vapor-deposited tape and that of other 2 kinds of tapes is corrected by the second recording equalizer 100.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56073552A JPS57189310A (en) | 1981-05-18 | 1981-05-18 | Magnetic recording and reproducing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56073552A JPS57189310A (en) | 1981-05-18 | 1981-05-18 | Magnetic recording and reproducing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57189310A true JPS57189310A (en) | 1982-11-20 |
Family
ID=13521510
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56073552A Pending JPS57189310A (en) | 1981-05-18 | 1981-05-18 | Magnetic recording and reproducing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57189310A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59138185A (en) * | 1983-01-28 | 1984-08-08 | Hitachi Ltd | Recording circuit of video tape recorder |
-
1981
- 1981-05-18 JP JP56073552A patent/JPS57189310A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59138185A (en) * | 1983-01-28 | 1984-08-08 | Hitachi Ltd | Recording circuit of video tape recorder |
JPH0134515B2 (en) * | 1983-01-28 | 1989-07-19 | Hitachi Ltd |
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