JPS5538767A - Signal display circuit - Google Patents
Signal display circuitInfo
- Publication number
- JPS5538767A JPS5538767A JP11196578A JP11196578A JPS5538767A JP S5538767 A JPS5538767 A JP S5538767A JP 11196578 A JP11196578 A JP 11196578A JP 11196578 A JP11196578 A JP 11196578A JP S5538767 A JPS5538767 A JP S5538767A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- visitor
- circuit
- chassis
- transmits
- 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
Links
Landscapes
- Audible And Visible Signals (AREA)
- Color Television Systems (AREA)
Abstract
PURPOSE: To know identification for the visitor by securing the blinking for a fixed time for the display screen of the TV picture receiver via the visitor signal.
CONSTITUTION: With push of the switch of slave unit 2 of the chime, the potential difference is caused between master unit 1 and the double lines of connection line 8. This signal is supplied to TV picture receiver 3 through connection line 6. Connection line 7 transmits the power source, the earth line, the vertical oscillation signal, the oscillation signal and the blanking pulse to visitor signal display circuit 4 from chassis 5, and also transmits the visitor signal to chassis 5 from circuit 4 as well as transmits the signal sent from line 6 to circuit 4. When the signals are applied to circuit 4 from chimes 1 and 2, the visitor signal turns to the blinking signal for several seconds to be applied to the G-Y output signal of chassis 5. And thus the rectangular display is given to part of the display screen of TV picture receiver 3.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53111965A JPS6047790B2 (en) | 1978-09-11 | 1978-09-11 | signal display circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53111965A JPS6047790B2 (en) | 1978-09-11 | 1978-09-11 | signal display circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5538767A true JPS5538767A (en) | 1980-03-18 |
JPS6047790B2 JPS6047790B2 (en) | 1985-10-23 |
Family
ID=14574570
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53111965A Expired JPS6047790B2 (en) | 1978-09-11 | 1978-09-11 | signal display circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6047790B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0446388A (en) * | 1990-06-13 | 1992-02-17 | Fujitsu General Ltd | Television broadcasting receiver which can display visitor mark |
-
1978
- 1978-09-11 JP JP53111965A patent/JPS6047790B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0446388A (en) * | 1990-06-13 | 1992-02-17 | Fujitsu General Ltd | Television broadcasting receiver which can display visitor mark |
Also Published As
Publication number | Publication date |
---|---|
JPS6047790B2 (en) | 1985-10-23 |
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