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JPS54125921A - Color television picture receiver - Google Patents

Color television picture receiver

Info

Publication number
JPS54125921A
JPS54125921A JP3443178A JP3443178A JPS54125921A JP S54125921 A JPS54125921 A JP S54125921A JP 3443178 A JP3443178 A JP 3443178A JP 3443178 A JP3443178 A JP 3443178A JP S54125921 A JPS54125921 A JP S54125921A
Authority
JP
Japan
Prior art keywords
video
picture image
color picture
main channel
screen
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
JP3443178A
Other languages
Japanese (ja)
Inventor
Hirofumi Fukuoka
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.)
Sharp Corp
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 JP3443178A priority Critical patent/JPS54125921A/en
Publication of JPS54125921A publication Critical patent/JPS54125921A/en
Pending legal-status Critical Current

Links

Landscapes

  • Processing Of Color Television Signals (AREA)

Abstract

PURPOSE: To secure the simultaneous projection for the color picture image of the secondary channel at part of the color picture image of the main channel by reading out the video and chrominance signals of the secondary channel in the higher speed than the writing from the memory unit and then compressing the time axis.
CONSTITUTION: At the main channel, and video signals received and processed at tuner 2 or video amplifier circuit 6 for reception use plus three chrominance signals supplied to pickup tube 17. And color picture image A of the main channel is projected at the primary part of screen 50. While at the secondary channel, the three chrominance signals received and processed through reception tuner 18 or video amplifier circuit 22 plus the video signal are supplied to memory units 26∼ 29 and then written with control 30 to be then read out in a speed three times as high as the writing speed. Then each chrominance signal plus the video signal with the time axis compressed to 1/3 are led out from units 26∼29 to be supplied to picture tube 17. Thus, the secondary channel color picture image B of 1/3 size is projected simultaneously at part of main channel screen as shown in screen 50.
COPYRIGHT: (C)1979,JPO&Japio
JP3443178A 1978-03-23 1978-03-23 Color television picture receiver Pending JPS54125921A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3443178A JPS54125921A (en) 1978-03-23 1978-03-23 Color television picture receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3443178A JPS54125921A (en) 1978-03-23 1978-03-23 Color television picture receiver

Publications (1)

Publication Number Publication Date
JPS54125921A true JPS54125921A (en) 1979-09-29

Family

ID=12414020

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3443178A Pending JPS54125921A (en) 1978-03-23 1978-03-23 Color television picture receiver

Country Status (1)

Country Link
JP (1) JPS54125921A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02140089A (en) * 1988-11-19 1990-05-29 Akai Electric Co Ltd Reduced sub picture synthesizer for color vtr in secam system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02140089A (en) * 1988-11-19 1990-05-29 Akai Electric Co Ltd Reduced sub picture synthesizer for color vtr in secam system

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