JPS61199385A - Small picture-output control circuit for television receiver - Google Patents

Small picture-output control circuit for television receiver

Info

Publication number
JPS61199385A
JPS61199385A JP4083185A JP4083185A JPS61199385A JP S61199385 A JPS61199385 A JP S61199385A JP 4083185 A JP4083185 A JP 4083185A JP 4083185 A JP4083185 A JP 4083185A JP S61199385 A JPS61199385 A JP S61199385A
Authority
JP
Japan
Prior art keywords
picture plane
signal
small picture
plane
picture
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
JP4083185A
Other languages
Japanese (ja)
Inventor
Mikiji Ogawa
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP4083185A priority Critical patent/JPS61199385A/en
Publication of JPS61199385A publication Critical patent/JPS61199385A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent the lowering of picture quality (picture turbulance) due to the phase difference between the field of the large picture plane and that of the small picture plane and to reduce the capacity of necessary memory by providing respective specific writing-control means, display memory, and a reading control means.
CONSTITUTION: The reading control means 28 outputs a transmital control signal which is to let a line memory 22 move a video data of small picture plane to a display memory on a line address switching means 31 based on the vertical synchronizing signal and horizontal synchronizing signal of a video signal of small picture plane outputted from a synchronizing-signal separating means for small picture plane 19 those of a video signal of large picture plane outputted from a synchronizing-signal separating means for a large picture plane 8. The control means 28 also outputs a latch signal to a latch means 23 until the said move is ended. The CRT 11 controls the determination of the initial points of vertical and horizontal scannings of the small picture plane based on the vertical and horizontal synchronizing signals of video signal of the large plane picture, and accordingly, the small picture plane is displayed in the specified division of the scope.
COPYRIGHT: (C)1986,JPO&Japio
JP4083185A 1985-02-28 1985-02-28 Small picture-output control circuit for television receiver Pending JPS61199385A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4083185A JPS61199385A (en) 1985-02-28 1985-02-28 Small picture-output control circuit for television receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4083185A JPS61199385A (en) 1985-02-28 1985-02-28 Small picture-output control circuit for television receiver

Publications (1)

Publication Number Publication Date
JPS61199385A true JPS61199385A (en) 1986-09-03

Family

ID=12591589

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4083185A Pending JPS61199385A (en) 1985-02-28 1985-02-28 Small picture-output control circuit for television receiver

Country Status (1)

Country Link
JP (1) JPS61199385A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62102671A (en) * 1985-10-29 1987-05-13 Sony Corp Two-screen television receiver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62102671A (en) * 1985-10-29 1987-05-13 Sony Corp Two-screen television receiver

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