JPS61103981U - - Google Patents
Info
- Publication number
- JPS61103981U JPS61103981U JP18693084U JP18693084U JPS61103981U JP S61103981 U JPS61103981 U JP S61103981U JP 18693084 U JP18693084 U JP 18693084U JP 18693084 U JP18693084 U JP 18693084U JP S61103981 U JPS61103981 U JP S61103981U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- pulse width
- obtaining
- pulse
- voltage
- 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
- 238000010586 diagram Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Processing Of Color Television Signals (AREA)
Description
第１図は本考案装置の一実施例のブロツク系統
図、第２図乃至第７図は本考案装置の動作説明用
信号波形図、第８図は水平同期信号とカラーバー
スト信号との関係を説明するための信号波形図で
ある。
１……被観測映像信号入力端子、２……同期信
号分離回路、５……バースト抜取り回路、６……
サブキヤリアロツク回路、７……零クロツシング
デテクタ、８……位相検波器、１０，１８……差
動アンプ、１１……絶対値アンプ、１２，１９…
…ＬＥＤドライバ、１３，２０……多連ＬＥＤ、
１５……基準パルスジエネレータ、１６……Ｓ／
Ｒフリツプフロツプ、１７……エクスクルシブオ
アゲート。
Fig. 1 is a block system diagram of an embodiment of the device of the present invention, Figs. 2 to 7 are signal waveform diagrams for explaining the operation of the device of the present invention, and Fig. 8 shows the relationship between the horizontal synchronizing signal and the color burst signal. It is a signal waveform diagram for explanation. 1... Observed video signal input terminal, 2... Synchronous signal separation circuit, 5... Burst sampling circuit, 6...
Subcarrier lock circuit, 7... Zero crossing detector, 8... Phase detector, 10, 18... Differential amplifier, 11... Absolute value amplifier, 12, 19...
...LED driver, 13,20...Multiple LED,
15...Reference pulse generator, 16...S/
R flipflop, 17...exclusive or gate.
Claims (1)
して得る手段と、該被観測カラー映像信号からカ
ムラーバースト信号を分離して連続したカラーバ
ースト信号を得る手段と、該水平同期信号と該連
続カラーバースト信号との位相差に応じた電圧を
得る手段と、複数の表示素子を該位相差電圧に応
じた数点灯する手段と、上記水平同期信号の前縁
から所定パルス幅をもつ基準信号を発生する手段
と、上記水平同期信号の前縁から上記分離して得
たカラーバースト信号の開始点迄の期間のパルス
幅をもつパルス信号を得る手段と、該基準信号と
該パルス信号とのパルス幅差に応じた電圧を得る
手段と、複数の表示素子を該パルス幅差電圧に応
じた数点灯する手段とよりなる波形観測装置。 means for separating and obtaining a horizontal synchronizing signal from an observed color video signal; means for separating a Camler burst signal from the observed color video signal to obtain a continuous color burst signal; and the horizontal synchronizing signal and the continuous color means for obtaining a voltage according to the phase difference with the burst signal; means for lighting up a plurality of display elements according to the phase difference voltage; and generating a reference signal having a predetermined pulse width from the leading edge of the horizontal synchronization signal. means for obtaining a pulse signal having a pulse width of a period from the leading edge of the horizontal synchronization signal to the start point of the separated color burst signal; and a pulse width of the reference signal and the pulse signal. A waveform observation device comprising means for obtaining a voltage according to the difference in pulse width, and means for lighting up a plurality of display elements in number according to the pulse width difference voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18693084U JPS61103981U (en) | 1984-12-10 | 1984-12-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18693084U JPS61103981U (en) | 1984-12-10 | 1984-12-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61103981U true JPS61103981U (en) | 1986-07-02 |
Family
ID=30744396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18693084U Pending JPS61103981U (en) | 1984-12-10 | 1984-12-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61103981U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01103093A (en) * | 1987-10-15 | 1989-04-20 | Reader Denshi Kk | Sc/h phase measuring instrument for composite video signal |
-
1984
- 1984-12-10 JP JP18693084U patent/JPS61103981U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01103093A (en) * | 1987-10-15 | 1989-04-20 | Reader Denshi Kk | Sc/h phase measuring instrument for composite video signal |
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