JPS55102985A - Color television receiver - Google Patents

Color television receiver

Info

Publication number
JPS55102985A
JPS55102985A JP1003979A JP1003979A JPS55102985A JP S55102985 A JPS55102985 A JP S55102985A JP 1003979 A JP1003979 A JP 1003979A JP 1003979 A JP1003979 A JP 1003979A JP S55102985 A JPS55102985 A JP S55102985A
Authority
JP
Japan
Prior art keywords
signal
supplied
sub
video
amplifier
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
JP1003979A
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 JP1003979A priority Critical patent/JPS55102985A/en
Priority to ES487332A priority patent/ES487332A1/en
Publication of JPS55102985A publication Critical patent/JPS55102985A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To project two main and sub pictures simultaneously by receiving two main and sub channels at the same time and then by applying the color signal and video signal of the sub channel with its time axis compressed to CRT in parallel those of the main channel.
CONSTITUTION: A color difference signal obtained by receiving and processing a signal from sub-channel turner 20 by video detection circuit 22 and chroma circuit 23 is supplied to color signal memory 33 by turns via color-signal alternation switch 36, and a video signal from video amplifier 24 to video signal memory 34. Under the control of control signal generating circuit 35, memories 33 and 34 are stored with color difference signals and video signals of one out of every three lines and they are read intermittently at a speed three times as high as that of write operation to extract a signal with its time axis compressed. This signal is supplied to matrix circuit 28, R-Y amplifier 29 and B-Y amplifier 31 by turns via alternation switch 37 to obtain from circuit 28 a G-Y signal, which is supplied to amplifier 31. Respective amplification outputs are applied to main/sub alternation switches 38, 39 and 40 and then supplied to output circuits 16, 17 and 18, so that R, G and B signals will be supplied to CRT19.
COPYRIGHT: (C)1980,JPO&Japio
JP1003979A 1979-01-30 1979-01-30 Color television receiver Pending JPS55102985A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1003979A JPS55102985A (en) 1979-01-30 1979-01-30 Color television receiver
ES487332A ES487332A1 (en) 1979-01-30 1979-12-28 Color television receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1003979A JPS55102985A (en) 1979-01-30 1979-01-30 Color television receiver

Publications (1)

Publication Number Publication Date
JPS55102985A true JPS55102985A (en) 1980-08-06

Family

ID=11739244

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1003979A Pending JPS55102985A (en) 1979-01-30 1979-01-30 Color television receiver

Country Status (2)

Country Link
JP (1) JPS55102985A (en)
ES (1) ES487332A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63164590A (en) * 1986-12-10 1988-07-07 ノキア（ドイチュラント）ゲーエムベーハー Video tape recorder with second video signal path
JPH02140089A (en) * 1988-11-19 1990-05-29 Akai Electric Co Ltd Reduced sub picture synthesizer for color vtr in secam system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63164590A (en) * 1986-12-10 1988-07-07 ノキア（ドイチュラント）ゲーエムベーハー Video tape recorder with second video signal path
JPH02140089A (en) * 1988-11-19 1990-05-29 Akai Electric Co Ltd Reduced sub picture synthesizer for color vtr in secam system

Also Published As

Publication number Publication date
ES487332A1 (en) 1980-09-16

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