JPS6459671A - Information signal recorder - Google Patents
Information signal recorderInfo
- Publication number
- JPS6459671A JPS6459671A JP62215159A JP21515987A JPS6459671A JP S6459671 A JPS6459671 A JP S6459671A JP 62215159 A JP62215159 A JP 62215159A JP 21515987 A JP21515987 A JP 21515987A JP S6459671 A JPS6459671 A JP S6459671A
- Authority
- JP
- Japan
- Prior art keywords
- band
- signal
- reproducing
- recording
- luminance
- 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
Landscapes
- Television Signal Processing For Recording (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Abstract
PURPOSE:To always obtain the information with a satisfactory S/N ratio and to suppress the inversion of a luminance signal due to the unbalance of a sideband wave by setting a recording level and recording it so that the signal of the side band lower than a single carrier frequency for the FM information signal of an information signal recording device can be increased more than the modulation. CONSTITUTION:When a high resolution black white image is recorded, the video signal of a base band luminance band is FM-modulated by a luminance signal FM modulator 1-1 and set to an optimum recording current value by a recording amplifier 20. For the setting, to a current value in which the maximum reproducing output of respective frequencies is obtained at the frequency band of the side lower than the carrier frequency, by the control of a switching pulse generator 14, a switch is changed over and set by the resistance in the amplifier 20. At the time of the reproducing mode, a switch S1 is set to a reproducing side, a switch S2 is set to the reproducing side of a single FM mode side, an FM signal from a magnetic head 3 is amplified to the prescribed level with a step-up transformer 6 and a pre-amplifier 7, inputted to an equalizer circuit 14, a luminance band is widened and the reproducing level at the lower side band is increased.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62215159A JPS6459671A (en) | 1987-08-31 | 1987-08-31 | Information signal recorder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62215159A JPS6459671A (en) | 1987-08-31 | 1987-08-31 | Information signal recorder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6459671A true JPS6459671A (en) | 1989-03-07 |
Family
ID=16667635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62215159A Pending JPS6459671A (en) | 1987-08-31 | 1987-08-31 | Information signal recorder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6459671A (en) |
-
1987
- 1987-08-31 JP JP62215159A patent/JPS6459671A/en active Pending
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