JPS6217291U - - Google Patents
Info
- Publication number
- JPS6217291U JPS6217291U JP10861785U JP10861785U JPS6217291U JP S6217291 U JPS6217291 U JP S6217291U JP 10861785 U JP10861785 U JP 10861785U JP 10861785 U JP10861785 U JP 10861785U JP S6217291 U JPS6217291 U JP S6217291U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- video
- component
- audio signals
- main 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims description 2
- 230000005236 sound signal Effects 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 2
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図はこの考案のビデオデイスクカツテイン
グ装置の一実施例の構成を示すブロツク図、第２
図は同上ビデオデイスクカツテイング装置に適用
するＦＭビデオ信号のスペクトラム、第３図は同
上ビデオデイスクカツテイング装置に適用するＰ
ＣＭ信号のプリエンフフアシス特性を示す図、第
４図は同上ビデオデイスクカツテイング装置に適
用されるＰＣＭ信号のローパスフイルタ通過後の
周波数特性を示す図、第５図は従来のビデオデイ
スクカツテイング装置のブロツク図、第６図はビ
デオ信号のプリエンフアシス特性図である。
１，３，５，１５……プリエンフアシス回路、
２，４，６……ＦＭ変調器、７……混合器、８…
…リミツタ、９……光変調器、１０……ハイパス
フイルタ、１１……デイレイ回路、１２……バン
ドパスフイルタ、１３……位相反転アンプ、１４
……ローパスフイルタ、Ｄ……デイスク。
FIG. 1 is a block diagram showing the configuration of an embodiment of the video disk cutting device of this invention, and FIG.
The figure shows the spectrum of an FM video signal applied to the video disc cutting device shown above, and Figure 3 shows the spectrum of the FM video signal applied to the video disc cutting device shown above.
FIG. 4 is a diagram showing the pre-emphasis characteristics of the CM signal. FIG. 4 is a diagram showing the frequency characteristics of the PCM signal after passing through a low-pass filter applied to the same video disk cutting device. FIG. The block diagram of FIG. 6 is a pre-emphasis characteristic diagram of a video signal. 1, 3, 5, 15... pre-emphasis circuit,
2, 4, 6...FM modulator, 7...mixer, 8...
... Limiter, 9 ... Optical modulator, 10 ... High pass filter, 11 ... Delay circuit, 12 ... Band pass filter, 13 ... Phase inversion amplifier, 14
...Low pass filter, D...disk.
Claims (1)
出する第１の回路と、上記色信号の２次の側帯波
と、ＦＭビデオ信号の主成分のデイレイ量を一致
させる第２の回路と、第１および第２のオーデイ
オ信号をブリエンフアシスした後に、ＦＭ変調を
行つて第１および第２のＦＭオーデイオ信号を得
る第１および第２のＦＭ変調器と、上記２次の側
帯波およびＦＭビデオ信号の主成分と、第１およ
び第２のＦＭオーデイオ信号ならびに低域成分を
抽出したＰＣＭ信号とを混合してＦＭビデオ信号
の主成分に、ＰＣＭ信号と第１および第２のＦＭ
オーデイオ信号をスーパインポーズし、かつリミ
ツタに混入するＦＭビデオ信号中の輝度信号成分
と色信号成分とのうち、上記ＰＣＭ信号帯域内に
入る成分をキヤンセルする混合器と、この混合器
の出力を上記リミツタで波形整形した信号を光変
調してデイスクをカツテイングする光変調器とよ
りなるビデオデイスクカツテイング装置。 a first circuit for extracting a secondary sideband of a color signal in an FM video signal; a second circuit for matching a delay amount of a main component of the FM video signal with the secondary sideband of the color signal; , first and second FM modulators that perform FM modulation on the first and second audio signals to obtain the first and second FM audio signals, and the second-order sideband and the FM video. The main component of the signal, the first and second FM audio signals, and the PCM signal from which the low frequency components are extracted are mixed to form the main component of the FM video signal.
A mixer that superimposes the audio signal and cancels the component that falls within the PCM signal band among the luminance signal component and color signal component in the FM video signal that is mixed into the limiter; A video disc cutting device comprising an optical modulator that optically modulates a signal whose waveform has been shaped by the limiter to cut the disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10861785U JPH0526874Y2 (en) | 1985-07-16 | 1985-07-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10861785U JPH0526874Y2 (en) | 1985-07-16 | 1985-07-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6217291U true JPS6217291U (en) | 1987-02-02 |
| JPH0526874Y2 JPH0526874Y2 (en) | 1993-07-07 |
Family
ID=30985977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10861785U Expired - Lifetime JPH0526874Y2 (en) | 1985-07-16 | 1985-07-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0526874Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02159897A (en) * | 1988-12-13 | 1990-06-20 | Sony Corp | Recorder |
| JPH04106038U (en) * | 1991-02-26 | 1992-09-11 | 関東自動車工業株式会社 | pull-out register |
-
1985
- 1985-07-16 JP JP10861785U patent/JPH0526874Y2/ja not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02159897A (en) * | 1988-12-13 | 1990-06-20 | Sony Corp | Recorder |
| JPH04106038U (en) * | 1991-02-26 | 1992-09-11 | 関東自動車工業株式会社 | pull-out register |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0526874Y2 (en) | 1993-07-07 |
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