JPS5511664A - Horizontal linearity display unit for television picture receiver or the like - Google Patents

Horizontal linearity display unit for television picture receiver or the like

Info

Publication number
JPS5511664A
JPS5511664A JP8474678A JP8474678A JPS5511664A JP S5511664 A JPS5511664 A JP S5511664A JP 8474678 A JP8474678 A JP 8474678A JP 8474678 A JP8474678 A JP 8474678A JP S5511664 A JPS5511664 A JP S5511664A
Authority
JP
Japan
Prior art keywords
display unit
linearity
displayed
output
checkered pattern
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
JP8474678A
Other languages
Japanese (ja)
Inventor
Jiyouji Yoshioka
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.)
NEC Home Electronics Ltd
NEC Corp
Original Assignee
NEC Home Electronics Ltd
Nippon Electric Co 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 NEC Home Electronics Ltd, Nippon Electric Co Ltd filed Critical NEC Home Electronics Ltd
Priority to JP8474678A priority Critical patent/JPS5511664A/en
Publication of JPS5511664A publication Critical patent/JPS5511664A/en
Pending legal-status Critical Current

Links

Landscapes

  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

PURPOSE: To secure an accurate display in terms of quantity of the horizontal linearity for the TV picture receiver or the like by using the TV camera, the special circuit device, the calculator and the output display unit each.
CONSTITUTION: The screen of checkered pattern 5 displayed on Braun tube screen 2 is picked up agein by TV camera 6, and the pulse row is generated from output composite video signal 12 via pulse row generator circuit device 20 and every time the vertical line of the checkered pattern emerges. This pulse row and the clock pulse generated from clock generator 27 are supplied to horizontal linearity counter 30 to count and deliver the clock pulse number corresponding to the distance between the vertical lines of the checkered pattern. And the output is displayed on output display unit 31. In this way, the linearity on the Braun tube screen can be displayed simply and in an accuracy enough for practical use, thus reducing greatly the trouble involved for measurement of the linearity.
COPYRIGHT: (C)1980,JPO&Japio
JP8474678A 1978-07-12 1978-07-12 Horizontal linearity display unit for television picture receiver or the like Pending JPS5511664A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8474678A JPS5511664A (en) 1978-07-12 1978-07-12 Horizontal linearity display unit for television picture receiver or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8474678A JPS5511664A (en) 1978-07-12 1978-07-12 Horizontal linearity display unit for television picture receiver or the like

Publications (1)

Publication Number Publication Date
JPS5511664A true JPS5511664A (en) 1980-01-26

Family

ID=13839246

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8474678A Pending JPS5511664A (en) 1978-07-12 1978-07-12 Horizontal linearity display unit for television picture receiver or the like

Country Status (1)

Country Link
JP (1) JPS5511664A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6077593A (en) * 1983-10-05 1985-05-02 Fujitsu Ltd Display screen automatic test system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5114214A (en) * 1974-07-26 1976-02-04 Tokyo Shibaura Electric Co
JPS5180118A (en) * 1975-01-09 1976-07-13 Hitachi Ltd KONBAAZENSUIROZUREKENSHUTSUSOCHI
JPS5367312A (en) * 1976-11-29 1978-06-15 Hitachi Ltd Best focal point detector for television picture image

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5114214A (en) * 1974-07-26 1976-02-04 Tokyo Shibaura Electric Co
JPS5180118A (en) * 1975-01-09 1976-07-13 Hitachi Ltd KONBAAZENSUIROZUREKENSHUTSUSOCHI
JPS5367312A (en) * 1976-11-29 1978-06-15 Hitachi Ltd Best focal point detector for television picture image

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6077593A (en) * 1983-10-05 1985-05-02 Fujitsu Ltd Display screen automatic test system

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