JPS5558814A - Noise component erase system in fm analog magnetic recording - Google Patents
Noise component erase system in fm analog magnetic recordingInfo
- Publication number
- JPS5558814A JPS5558814A JP13102378A JP13102378A JPS5558814A JP S5558814 A JPS5558814 A JP S5558814A JP 13102378 A JP13102378 A JP 13102378A JP 13102378 A JP13102378 A JP 13102378A JP S5558814 A JPS5558814 A JP S5558814A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- data
- reference signal
- magnetic recording
- noise component
- 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
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Abstract
PURPOSE: To enhance the effect of correction, by adding FM data signal and reference signal, and by recording and reproduction the summed up signal with one signal track.
CONSTITUTION: The FM modulation signal c in FM modulating 2 the data input signal a together with the carrier b, and the reference signal d of the reference signal oscillator 4 are inputted to the adder 11 to produce the sum signal j, which is recorded on the data track 51. The recording signal is picked up with the reproducing unit 6, this is separated into the data signal l' and reference signal m' with BPF 12 and 13 to obtain the data demodulation signal g' and reference demodulation signal h' from the FM demodulators 7 and 8 and also to otbain the correction data i' from the terminal 10 with the input of the both to the differential amplifier 9. Thus, the reference signal and data signal detecting harmful components are recorded on the same point of tape, allowing to obtain remarkably high accuracy for the corrective effect.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13102378A JPS5558814A (en) | 1978-10-26 | 1978-10-26 | Noise component erase system in fm analog magnetic recording |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13102378A JPS5558814A (en) | 1978-10-26 | 1978-10-26 | Noise component erase system in fm analog magnetic recording |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5558814A true JPS5558814A (en) | 1980-05-01 |
Family
ID=15048188
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13102378A Pending JPS5558814A (en) | 1978-10-26 | 1978-10-26 | Noise component erase system in fm analog magnetic recording |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5558814A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61104404A (en) * | 1984-10-24 | 1986-05-22 | Matsushita Electric Ind Co Ltd | Magnetic recording and reproducing device |
-
1978
- 1978-10-26 JP JP13102378A patent/JPS5558814A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61104404A (en) * | 1984-10-24 | 1986-05-22 | Matsushita Electric Ind Co Ltd | Magnetic recording and reproducing device |
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