JPS5485636A - Picture projecting device - Google Patents

Picture projecting device

Info

Publication number
JPS5485636A
JPS5485636A JP15403377A JP15403377A JPS5485636A JP S5485636 A JPS5485636 A JP S5485636A JP 15403377 A JP15403377 A JP 15403377A JP 15403377 A JP15403377 A JP 15403377A JP S5485636 A JPS5485636 A JP S5485636A
Authority
JP
Japan
Prior art keywords
screen
circuit
signal
main
color
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.)
Granted
Application number
JP15403377A
Other languages
Japanese (ja)
Other versions
JPS5850073B2 (en
Inventor
Teruo Kitani
Takaaki Baba
Toshiro Ishikawa
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP15403377A priority Critical patent/JPS5850073B2/en
Publication of JPS5485636A publication Critical patent/JPS5485636A/en
Publication of JPS5850073B2 publication Critical patent/JPS5850073B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To secure the simple coloring for the secondary screen with the specified color to increase the impression of the secondary screen as well as to secure an easy identification to the main screen for the picture projecting device in which the pictures of two channels can be projected simultaneously on the screen of color CRT of the TV picture receiver.
CONSTITUTION: The screen of plural TV signals is displayed on single color video tube 30, and one of the TV signals is selected the main signal. The beam deflection is given by the synchronous signal of the main signal to project the main screen. The signals excluding the main signal are secondary signals to form the secondary screen, and the secondary screen is put into part of the main screen in synchronization with the synchronous signal of the main signal. Then signal selector circuit 13, video process circuit 24, adder circuit 25, switch circuit 26 and chroma signal process circuit 27 are installed. Furthermore, primary color driving output circuit 28 is provided to color the specified color on the secondary screen with supply of the output of circuit 25, along with switch circuit 29 to switch clock pulse C of the input selection signal. Thus, the impression of the secondary screen is increased by the output of circuit 28.
COPYRIGHT: (C)1979,JPO&Japio
JP15403377A 1977-12-20 1977-12-20 Image projection device Expired JPS5850073B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15403377A JPS5850073B2 (en) 1977-12-20 1977-12-20 Image projection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15403377A JPS5850073B2 (en) 1977-12-20 1977-12-20 Image projection device

Publications (2)

Publication Number Publication Date
JPS5485636A true JPS5485636A (en) 1979-07-07
JPS5850073B2 JPS5850073B2 (en) 1983-11-08

Family

ID=15575431

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15403377A Expired JPS5850073B2 (en) 1977-12-20 1977-12-20 Image projection device

Country Status (1)

Country Link
JP (1) JPS5850073B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56111391A (en) * 1980-02-08 1981-09-03 Nec Home Electronics Ltd Picture adjusting method at the time of color killer in color image receiving device
JPS60220689A (en) * 1984-04-18 1985-11-05 Hitachi Ltd Picture display driving circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56111391A (en) * 1980-02-08 1981-09-03 Nec Home Electronics Ltd Picture adjusting method at the time of color killer in color image receiving device
JPS622517B2 (en) * 1980-02-08 1987-01-20 Nippon Denki Hoomu Erekutoronikusu Kk
JPS60220689A (en) * 1984-04-18 1985-11-05 Hitachi Ltd Picture display driving circuit

Also Published As

Publication number Publication date
JPS5850073B2 (en) 1983-11-08

Similar Documents

Publication Publication Date Title
JPS5526792A (en) Television screen display unit
JPS54112122A (en) Picture display unit
JPS5482931A (en) Display unit for cathode ray tube
JPS5376623A (en) Single-tube-type color television camera
JPS53101932A (en) Color television picture receiver
JPS5485636A (en) Picture projecting device
JPS5320347A (en) Viewer for pseudo-stereo image
JPS5558678A (en) Channel display unit in television receiver
JPS5318332A (en) Color television signal transmission system
JPS5434617A (en) Video signal process circuit
JPS5437535A (en) Video projector
JPS5617583A (en) Television picture receiver
JPS51117869A (en) Cathode ray tube
JPS53148227A (en) Television receiver
SU690654A1 (en) Television colour synthesizer
JPS5397724A (en) Television picture receiver possessing waveform display function
JPS5414621A (en) Display method for white balance
JPS53126211A (en) Television zooming system
JPS5534510A (en) Double-screen color television receiver
JPS5513514A (en) White balance display method of color television camera
JPS5357709A (en) Gen-lock for pal-system color television signal
JPS53109424A (en) Signal processing system for color television
JPS5412520A (en) Color television picture receiver
JPS54144128A (en) Jitter restriction unit for character broadcast receiver
JPS5599821A (en) Channel selection system for television receiver