JPS59101566U - Brightness signal recording circuit for video tape recorder - Google Patents
Brightness signal recording circuit for video tape recorderInfo
- Publication number
- JPS59101566U JPS59101566U JP20018982U JP20018982U JPS59101566U JP S59101566 U JPS59101566 U JP S59101566U JP 20018982 U JP20018982 U JP 20018982U JP 20018982 U JP20018982 U JP 20018982U JP S59101566 U JPS59101566 U JP S59101566U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- frequency
- luminance signal
- output
- video tape
- 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
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の輝度信号の記録、再生回路を示す回路図
、第２図はこの考案の一実施例を示す回路図である。
１２・・・ＡＧＣ増幅回路、１３・・・ＡＧＣ検波回路
、１４・・・Ｙ／Ｃ分離回路、１５・・・ブリエンファ
シス回路、１６・・・周波数変調回路、１７・・・記録
地幅回路、１８・・・ビデオヘッド、２４−・・ＦＭ復
調回路、２５・・・ディエンファシス回路、２８・・・
再生Ｙレベル調゛整用ボリューム、３１・・・スイッチ
。FIG. 1 is a circuit diagram showing a conventional luminance signal recording and reproducing circuit, and FIG. 2 is a circuit diagram showing an embodiment of this invention. 12...AGC amplifier circuit, 13...AGC detection circuit, 14...Y/C separation circuit, 15...Brief emphasis circuit, 16...Frequency modulation circuit, 17...Record width circuit , 18... Video head, 24-... FM demodulation circuit, 25... De-emphasis circuit, 28...
Volume for adjusting playback Y level, 31... switch.
Claims (1)
数変調された輝度信号の再生出力を復調するものであっ
て予じめ設定された所定の周波数偏位を持つ再生出力が
得られるとき予じめ紐定された所定の振幅レベルの輝度
信号を出力するようになされたＦＭ復調手段と、記録モ
ードのときは前記周波数変調手段からの周波数変調され
た輝度信号を前記ＦＭ復調手段に供給し再生モードでは
該信号の再生出力を供給するスイッチ手段と、記録モー
ドのとき前記ＦＭ復調手段からの輝度信号の振幅レベル
が前記所定の振幅レベルとなるように前記周波数変調手
段に供給される輝度信号の振幅し・ベルを制御する自動
利得制御手段とを具備したビデオテープレコーダの輝度
信号記録回路。a frequency modulation means for frequency modulating the luminance signal; and a means for demodulating the reproduced output of the frequency-modulated luminance signal, the frequency modulating means demodulating the reproduced output having a predetermined frequency deviation set in advance. FM demodulation means configured to output a luminance signal with a fixed predetermined amplitude level, and in a recording mode, supplying the frequency-modulated luminance signal from the frequency modulation means to the FM demodulation means, and in a reproduction mode. A switch means for supplying a reproduction output of the signal; and a switch means for supplying a reproduction output of the signal, and an amplitude of the luminance signal supplied to the frequency modulation means so that the amplitude level of the luminance signal from the FM demodulation means becomes the predetermined amplitude level in the recording mode. A brightness signal recording circuit for a video tape recorder, comprising an automatic gain control means for controlling a signal and a signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20018982U JPS59101566U (en) | 1982-12-24 | 1982-12-24 | Brightness signal recording circuit for video tape recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20018982U JPS59101566U (en) | 1982-12-24 | 1982-12-24 | Brightness signal recording circuit for video tape recorder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59101566U true JPS59101566U (en) | 1984-07-09 |
Family
ID=30425722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20018982U Pending JPS59101566U (en) | 1982-12-24 | 1982-12-24 | Brightness signal recording circuit for video tape recorder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59101566U (en) |
-
1982
- 1982-12-24 JP JP20018982U patent/JPS59101566U/en active Pending
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