JPS6489681A - Magnetic recording/reproducing device - Google Patents
Magnetic recording/reproducing deviceInfo
- Publication number
- JPS6489681A JPS6489681A JP62243712A JP24371287A JPS6489681A JP S6489681 A JPS6489681 A JP S6489681A JP 62243712 A JP62243712 A JP 62243712A JP 24371287 A JP24371287 A JP 24371287A JP S6489681 A JPS6489681 A JP S6489681A
- Authority
- JP
- Japan
- Prior art keywords
- recording
- amplifier
- lpf
- circuit
- band mode
- 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)
Abstract
PURPOSE:To expand a dynamic range and to reduce the distortion of a recording current at the time of a high band mode by constituting a recording amplifier of a constant current amplifier. CONSTITUTION:The recording system of a video signal consists of a low pass filter(LPF) 2, an AGC circuit 3, a clamp circuit 4, a pre-emphasis circuit 5, a clipping level set circuit 6, an FM modulator 7, a lag lead LPF 8, the recording amplifier 9 and a magnetic head 10. The recording amplifier 9 is constituted of the constant current amplifier, and the lag lead LPF 8 in the preceding stage of it is switched at a low band mode and the high band mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62243712A JPS6489681A (en) | 1987-09-30 | 1987-09-30 | Magnetic recording/reproducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62243712A JPS6489681A (en) | 1987-09-30 | 1987-09-30 | Magnetic recording/reproducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6489681A true JPS6489681A (en) | 1989-04-04 |
Family
ID=17107863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62243712A Pending JPS6489681A (en) | 1987-09-30 | 1987-09-30 | Magnetic recording/reproducing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6489681A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3924987A1 (en) * | 1989-07-28 | 1991-01-31 | Broadcast Television Syst | Recording video signal with improved noise separation - using bridged T filter between frequency modulator output and current amplifier with linear characteristic |
-
1987
- 1987-09-30 JP JP62243712A patent/JPS6489681A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3924987A1 (en) * | 1989-07-28 | 1991-01-31 | Broadcast Television Syst | Recording video signal with improved noise separation - using bridged T filter between frequency modulator output and current amplifier with linear characteristic |
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