JPH0185962U - - Google Patents
Info
- Publication number
- JPH0185962U JPH0185962U JP18326387U JP18326387U JPH0185962U JP H0185962 U JPH0185962 U JP H0185962U JP 18326387 U JP18326387 U JP 18326387U JP 18326387 U JP18326387 U JP 18326387U JP H0185962 U JPH0185962 U JP H0185962U
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- circuit
- system including
- coupled
- amplification degree
- 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)
Description
第１図は本案による方式のブロツク図、第２図
は第１図の各部における映像信号の波形、第３図
は従来の装置のブロツク図、第４図は第３図の装
置の各部における映像信号の波形、第５図は本案
に使用される非直線増幅回路の特性曲線の一例を
示す。
３……プリエンフアシス回路、４……ＦＭ変調
回路、１０……ＦＭ復調回路、１１……デイエン
フアシス回路、２０……非直線増幅回路、２１…
…非直線増幅補正回路。
Fig. 1 is a block diagram of the system according to the present invention, Fig. 2 is a waveform of a video signal in each part of Fig. 1, Fig. 3 is a block diagram of a conventional device, and Fig. 4 is an image of each part of the device in Fig. 3. FIG. 5 shows an example of the characteristic curve of the nonlinear amplifier circuit used in the present invention. 3... Pre-emphasis circuit, 4... FM modulation circuit, 10... FM demodulation circuit, 11... De-emphasis circuit, 20... Non-linear amplifier circuit, 21...
...Nonlinear amplification correction circuit.
Claims (1)
した増幅器と、前記の増幅器に結合されたプリエ
ンフアシス回路、ＦＭ変調回路を含む記録系と、
ＦＭ復調回路、デイエンフアシス回路に結合され
た前記の増幅器の増幅度と反対の増幅度を有する
増幅器を含む再生系を備えた磁気記録再生装置。 a recording system including an amplifier with a high amplification degree for a small amplitude video signal, a pre-emphasis circuit coupled to the amplifier, and an FM modulation circuit;
A magnetic recording and reproducing apparatus comprising a reproducing system including an amplifier having an amplification degree opposite to that of the amplifier, which is coupled to an FM demodulation circuit and a de-emphasis circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18326387U JPH0185962U (en) | 1987-11-30 | 1987-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18326387U JPH0185962U (en) | 1987-11-30 | 1987-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0185962U true JPH0185962U (en) | 1989-06-07 |
Family
ID=31474692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18326387U Pending JPH0185962U (en) | 1987-11-30 | 1987-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0185962U (en) |
-
1987
- 1987-11-30 JP JP18326387U patent/JPH0185962U/ja active Pending
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