JPS55122212A - Magnetic recording and reproducing device - Google Patents
Magnetic recording and reproducing deviceInfo
- Publication number
- JPS55122212A JPS55122212A JP2862579A JP2862579A JPS55122212A JP S55122212 A JPS55122212 A JP S55122212A JP 2862579 A JP2862579 A JP 2862579A JP 2862579 A JP2862579 A JP 2862579A JP S55122212 A JPS55122212 A JP S55122212A
- Authority
- JP
- Japan
- Prior art keywords
- head
- signal
- phase
- resonance
- characteristic
- 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 use effectively the FM equlization effect dependent upon head resonance action to improve S/N and eliminate waveform distortion to realize high- density magnetic recording and reproducing with a simple consititution, by inserting a phase shift circuit to the recording signal system.
CONSTITUTION: Phase displacement is given to video signal lW", which was subjected to FM, according to the frequency by phase shift circuit 6, and signal lW" is subjected to prescribed phase change in the carrier wave and between both side bands. This phase characteristic is so determined that the sum of the phase change quantity of this characteristic and the phase change quantity given by head resonance reproducing amplifier 7 may be linear. Output signal lW' of circuit 6 is supplied to head 12 through flat-characteristic amplifier 2 for recording and is recorded on tape 11. At a reproducing time, the signal becomes resonance signal voltage lR' at the input end of head resonance amplifier 7 including head 13 and is amplified to obtain output signal voltage lR".
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2862579A JPS55122212A (en) | 1979-03-14 | 1979-03-14 | Magnetic recording and reproducing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2862579A JPS55122212A (en) | 1979-03-14 | 1979-03-14 | Magnetic recording and reproducing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55122212A true JPS55122212A (en) | 1980-09-19 |
Family
ID=12253728
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2862579A Pending JPS55122212A (en) | 1979-03-14 | 1979-03-14 | Magnetic recording and reproducing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55122212A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60184375U (en) * | 1984-05-17 | 1985-12-06 | 三洋電機株式会社 | Video signal correction circuit |
-
1979
- 1979-03-14 JP JP2862579A patent/JPS55122212A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60184375U (en) * | 1984-05-17 | 1985-12-06 | 三洋電機株式会社 | Video signal correction circuit |
JPH0427262Y2 (en) * | 1984-05-17 | 1992-06-30 |
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