JPS56138364A - Jitter measurement device - Google Patents
Jitter measurement deviceInfo
- Publication number
- JPS56138364A JPS56138364A JP17550180A JP17550180A JPS56138364A JP S56138364 A JPS56138364 A JP S56138364A JP 17550180 A JP17550180 A JP 17550180A JP 17550180 A JP17550180 A JP 17550180A JP S56138364 A JPS56138364 A JP S56138364A
- Authority
- JP
- Japan
- Prior art keywords
- jitter
- signal
- video
- display signal
- mixer
- 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)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
PURPOSE: To measure a jitter component included in a video signal easily, by a reference signal displaying the specified jitter standards and a display signal enlarging the jitter component included in the video and displaying it.
CONSTITUTION: The video signal from the terminal 9 is only the horizontal synchronizing signal and fed to the monostable multivibrator 13. The phase comparator 14 constitutes PLL with the voltage controlled oscillator 15 to detect the jitter components. In the frequency correction circuit 16, since the degree of appearance of jitter components is different from the difference of AFC characteristic of the receiver, the frequency is corrected at almost intermediate value. This output is the jitter display signal amplified at the amplifier 17. The monostable multivibrators 19, 23 decide the location of the reference white lines A, B and the location on the playback picture can arbitrarily be adjusted with a volume control. The jitter display signal from the differentiation circuit 21 (being J line) and the reference signal from the mixer 26 are mixed at the mixer 10 and output on the image receiver 7.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17550180A JPS56138364A (en) | 1980-12-12 | 1980-12-12 | Jitter measurement device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17550180A JPS56138364A (en) | 1980-12-12 | 1980-12-12 | Jitter measurement device |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52018716A Division JPS6031304B2 (en) | 1977-02-24 | 1977-02-24 | Jitter measurement method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56138364A true JPS56138364A (en) | 1981-10-28 |
Family
ID=15997138
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17550180A Pending JPS56138364A (en) | 1980-12-12 | 1980-12-12 | Jitter measurement device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56138364A (en) |
-
1980
- 1980-12-12 JP JP17550180A patent/JPS56138364A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR900017393A (en) | Picture-in-Picture Circuit Using Field Rate Synchronization | |
JPS57135582A (en) | Reception circuit for fm television signal | |
EP0845899A3 (en) | Video display apparatus having phase-locked loop used for synchronizing a horizontal scan frequency with a synchronizing input signal frequency | |
US4680621A (en) | Method and apparatus for variable phasing of periodic signals | |
MY105963A (en) | Television apparatus with picture in picture processing | |
JPS56138364A (en) | Jitter measurement device | |
KR870011791A (en) | Brightness Control Circuit for TV Receiver | |
JPS56138365A (en) | Jitter measurement device | |
JPS56138363A (en) | Jitter measurement device | |
US4561013A (en) | Color sign inserting circuit for video signal reproducing system | |
JPS6471271A (en) | Image pickup device | |
JPS5620390A (en) | Controlling circuit of television superimposition screen | |
JPS56120280A (en) | Interpolation device for synchronizing signal | |
JPS5941671Y2 (en) | Video signal automatic switching circuit | |
GB1515180A (en) | Arrangement for processing and correcting colour television signals | |
JPS55655A (en) | Symbol display device for video display equipment | |
JPS5592081A (en) | Adjustment unit of television receiver | |
JPS5516507A (en) | Detector for vertical center position on television picture screen | |
JPH08263032A (en) | Automatic screen position adjusting device | |
KR930007502Y1 (en) | Horizontal-sync signal generating apparatus of camcoder | |
JPS538518A (en) | Tv picture receiver of index system | |
JPS55151874A (en) | Television sound multiple broadcast receiver | |
JPS55109902A (en) | Oblique image pickup correction system of subject size measuring instrument | |
KR850001845Y1 (en) | Vertical saw type wave control circuit | |
JPS6322775Y2 (en) |