JPS56138364A - Jitter measurement device - Google Patents

Jitter measurement device

Info

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
Application number
JP17550180A
Other languages
Japanese (ja)
Inventor
Seisuke Hirakuri
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP17550180A priority Critical patent/JPS56138364A/en
Publication of JPS56138364A publication Critical patent/JPS56138364A/en
Pending legal-status Critical Current

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
JP17550180A 1980-12-12 1980-12-12 Jitter measurement device Pending JPS56138364A (en)

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)

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