JPS588276U - magnetic recording and reproducing device - Google Patents
magnetic recording and reproducing deviceInfo
- Publication number
- JPS588276U JPS588276U JP7454582U JP7454582U JPS588276U JP S588276 U JPS588276 U JP S588276U JP 7454582 U JP7454582 U JP 7454582U JP 7454582 U JP7454582 U JP 7454582U JP S588276 U JPS588276 U JP S588276U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- color signal
- circuit
- low
- frequency
- 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.)
- Granted
Links
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図は統−Ｉ型ＶＴＲにおける周波数分布を示すスペ
クトル図、第２図は本命面の一実施例における磁気記録
再生装置の構成を示すブロック線図、第３図は同装置に
おける時間軸補正部の構成を詳細に示すブロック線図で
ある。Fig. 1 is a spectrum diagram showing the frequency distribution in a standard-I type VTR, Fig. 2 is a block diagram showing the configuration of a magnetic recording/reproducing device in one embodiment of the preferred method, and Fig. 3 is a time axis correction in the same device. FIG. 2 is a block diagram showing the configuration of the unit in detail.
Claims (1)
フィルタ回路と、上記輝度信号をＦＭ変調するＦＭ変調
回路と、上記色信号を低域の周波数に変換する変換回路
と、この低域変換色信号をＦＭ変調するＦＭ変調回路と
；上記ＦＭ変調したＦＭ輝度信号およびＦＭ低域変換色
信号を磁気記録媒体上のそれぞれ異なる記録トラックに
記録する記録手段と、この磁気記録媒体から上記両ＦＭ
信号をそれぞれピックアップするピックアップ手段と、
上記ピックアップしたＦＭ輝度信号をＦＭ復調して上記
輝度信号を再生するＦＭ復調回路と、上記ピックアップ
したＦＭ低域凌換色信号をＦＭ復調して低域変換色信号
を再生するＦＭ復調回路と、この低域変換色信号に含ま
れるカラーバーストに基づいて再生色信号の時間軸補正
を行なう時間軸補正回路と、この低域変換色信号をもと
の色信号の周波数に変換する再変換回路とを備え、上記
低域変換色信号の中心周波数を上記色信号の帯域幅より
も低い周波数に設定し、かつ、この低域変換色信号をＦ
Ｍ変調するときの変換指数を上記ＦＭ輝度信号の変調指
数よりも大きくした磁気記録再生装置。a filter circuit that separates a video signal to be recorded into a luminance signal and a chrominance signal; an FM modulation circuit that FM-modulates the luminance signal; a conversion circuit that converts the chrominance signal to a low frequency; an FM modulation circuit for FM-modulating the converted color signal; a recording means for recording the FM-modulated FM luminance signal and the FM low-frequency converted color signal on different recording tracks on a magnetic recording medium; FM
pickup means for picking up each signal;
an FM demodulation circuit that FM demodulates the picked up FM luminance signal and reproduces the luminance signal; an FM demodulation circuit that FM demodulates the picked up FM low frequency conversion color signal to reproduce a low frequency conversion color signal; A time axis correction circuit that performs time axis correction of the reproduced color signal based on the color burst included in this low frequency converted color signal, and a reconversion circuit that converts this low frequency converted color signal to the frequency of the original color signal. , the center frequency of the low-pass converted color signal is set to a frequency lower than the bandwidth of the color signal, and the low-pass converted color signal is set to F
A magnetic recording/reproducing device in which a conversion index for M modulation is larger than a modulation index of the FM luminance signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7454582U JPS5816310Y2 (en) | 1982-05-20 | 1982-05-20 | magnetic recording and reproducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7454582U JPS5816310Y2 (en) | 1982-05-20 | 1982-05-20 | magnetic recording and reproducing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS588276U true JPS588276U (en) | 1983-01-19 |
| JPS5816310Y2 JPS5816310Y2 (en) | 1983-04-02 |
Family
ID=29870314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7454582U Expired JPS5816310Y2 (en) | 1982-05-20 | 1982-05-20 | magnetic recording and reproducing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5816310Y2 (en) |
-
1982
- 1982-05-20 JP JP7454582U patent/JPS5816310Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5816310Y2 (en) | 1983-04-02 |
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