JPH01137687U - - Google Patents
Info
- Publication number
- JPH01137687U JPH01137687U JP3403188U JP3403188U JPH01137687U JP H01137687 U JPH01137687 U JP H01137687U JP 3403188 U JP3403188 U JP 3403188U JP 3403188 U JP3403188 U JP 3403188U JP H01137687 U JPH01137687 U JP H01137687U
- Authority
- JP
- Japan
- Prior art keywords
- chroma
- signal
- separation means
- chroma signal
- amplification
- 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
- 238000000926 separation method Methods 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims 2
- 239000002131 composite material Substances 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 3
Landscapes
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Description
第１図は本考案のカラービデオノイズ測定装置
の一実施例を示す系統図、第２図は第１図の信号
波形図、第３図は補正増幅器の挿入理由を説明す
るためのベクトル図、第４図は本考案のカラービ
デオノイズ測定装置の他の実施例を示す信号波形
図、第５図はＶＩＴＳ波形図、第６図は本考案の
クロマノイズ測定に用いるＶＩＲＳ波形図、第７
図は従来のクロマノイズ測定に用いられたクロミ
ナンスノイズ測定信号波形図である。
１はＹ―Ｃ分離回路、３はＶＩＴＳ選択回路、
８はクロマゲート回路、１０はＡＭ検波器、１１
はＰＭ検波器、１２は補正増幅器、１９は表示手
段である。
FIG. 1 is a system diagram showing an embodiment of the color video noise measuring device of the present invention, FIG. 2 is a signal waveform diagram of FIG. 1, and FIG. 3 is a vector diagram for explaining the reason for inserting a correction amplifier. FIG. 4 is a signal waveform diagram showing another embodiment of the color video noise measuring device of the present invention, FIG. 5 is a VITS waveform diagram, FIG. 6 is a VIRS waveform diagram used for chroma noise measurement of the present invention, and FIG.
The figure is a chrominance noise measurement signal waveform diagram used in conventional chroma noise measurement. 1 is a Y-C separation circuit, 3 is a VITS selection circuit,
8 is a chroma gate circuit, 10 is an AM detector, 11
1 is a PM detector, 12 is a correction amplifier, and 19 is a display means.
Claims (1)
るクロマ分離手段と、 該クロマ分離手段からのクロマ信号をＰＭ検波
する位相検波手段とを有し、 該位相検波手段からの検波出力を１００ＩＲＥ
スケールユニツトに対するクロマ信号のレベル比
に等しい増幅度で増幅するようにしたことを特徴
とするカラービデオノイズ測定装置。[Claims for Utility Model Registration] A system comprising: chroma separation means for extracting a chroma signal from a composite color television signal; and phase detection means for PM-detecting the chroma signal from the chroma separation means; Output to 100IRE
A color video noise measuring device characterized in that amplification is performed with an amplification degree equal to the level ratio of a chroma signal to a scale unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3403188U JPH01137687U (en) | 1988-03-15 | 1988-03-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3403188U JPH01137687U (en) | 1988-03-15 | 1988-03-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01137687U true JPH01137687U (en) | 1989-09-20 |
Family
ID=31260750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3403188U Pending JPH01137687U (en) | 1988-03-15 | 1988-03-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01137687U (en) |
-
1988
- 1988-03-15 JP JP3403188U patent/JPH01137687U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH01137687U (en) | ||
| JPH01167780U (en) | ||
| JPS61149496U (en) | ||
| JPH03125563U (en) | ||
| JPS61154083U (en) | ||
| JPH0338989U (en) | ||
| JPS63579U (en) | ||
| JPS6425281U (en) | ||
| JPS6230482U (en) | ||
| JPH0351578U (en) | ||
| JPS6381569U (en) | ||
| JPS6390387U (en) | ||
| JPS6490695A (en) | Color signal noise measuring device | |
| JPS6310678U (en) | ||
| JPS6160570U (en) | ||
| JPH0227573U (en) | ||
| JPH0273886U (en) | ||
| JPS61103966U (en) | ||
| JPS6135484U (en) | Single-panel color video camera | |
| JPS63163069U (en) | ||
| JPS6183376U (en) | ||
| JPS6170474U (en) | ||
| JPS62100769U (en) | ||
| JPH03130679U (en) | ||
| JPS6247277U (en) |