JPS55100783A - Two-screen display television receiver - Google Patents
Two-screen display television receiverInfo
- Publication number
- JPS55100783A JPS55100783A JP839079A JP839079A JPS55100783A JP S55100783 A JPS55100783 A JP S55100783A JP 839079 A JP839079 A JP 839079A JP 839079 A JP839079 A JP 839079A JP S55100783 A JPS55100783 A JP S55100783A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- channel
- main
- sub
- frame
- 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
Links
Abstract
PURPOSE: To make it possible to discriminate clearly between images of main and sub channels, by projecting any other sub channel than a main channel that a user is watching at part of a television screen while encircling it with a frame.
CONSTITUTION: A broadcasting wave arriving from antenna 4 is led to tuners 5 and 7 for main and sub channels by way of distributor 5. A signal of the sub channel is detected by detector 11 and then written in memory circuit 13 by a synchronizing signal separated by synchronous separator circuit 10. A main-channel signal is applied to gate circuit 14 and synchronous separator circuit 9 via detector 8. A main-channel synchronizing signal obtained by synchronous separator circuit 9 reads the sub-channel signal in memory circuit 13 and it is sent out to synthesizer circuit 17. Control circuit 12 exercises control over the read and write of memory circuit 13 and also controls frame-pattern generating circuit 15. Video amplifier circuit 16 projects an image of the main channel with a frame from gate circuit 14 on color Braun tube 18.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP839079A JPS55100783A (en) | 1979-01-26 | 1979-01-26 | Two-screen display television receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP839079A JPS55100783A (en) | 1979-01-26 | 1979-01-26 | Two-screen display television receiver |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55100783A true JPS55100783A (en) | 1980-07-31 |
Family
ID=11691868
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP839079A Pending JPS55100783A (en) | 1979-01-26 | 1979-01-26 | Two-screen display television receiver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55100783A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01157176A (en) * | 1987-07-28 | 1989-06-20 | Sanyo Electric Co Ltd | Digital television receiver and data processor to be used by receiver |
-
1979
- 1979-01-26 JP JP839079A patent/JPS55100783A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01157176A (en) * | 1987-07-28 | 1989-06-20 | Sanyo Electric Co Ltd | Digital television receiver and data processor to be used by receiver |
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