JPS55109090A - Color picture receiver of beam index system - Google Patents
Color picture receiver of beam index systemInfo
- Publication number
- JPS55109090A JPS55109090A JP1655279A JP1655279A JPS55109090A JP S55109090 A JPS55109090 A JP S55109090A JP 1655279 A JP1655279 A JP 1655279A JP 1655279 A JP1655279 A JP 1655279A JP S55109090 A JPS55109090 A JP S55109090A
- Authority
- JP
- Japan
- Prior art keywords
- supplied
- color picture
- picture tube
- signals
- pulse
- 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
Landscapes
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Abstract
PURPOSE: To ensure the horizontal blanking of the ineffective screen by providing the means to detect the scanning beam into the color picture tube and then counting the signals of the above means.
CONSTITUTION: Both lens 6 and photoelectric converter 7 are provided at part of the funnel part of the color picture tube 1 in order to receive the light which is emitted when the electron beam scans the index fluorescent substance stripe. Then signal SD is delivered and then supplied to waveform shaping circuit 31 via band pass filter 30 to be turned into index pulse PI. Thus FF32 is reset with pulse PI, and horizontal address counter 33 starts counting. And when no ineffective screen is detected, gate circuit 27 opens, and thus gate signals PR∼PB are supplied to switching circuit 3. Then primary color signals R∼B are supplied to picture tube 1.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1655279A JPS55109090A (en) | 1979-02-15 | 1979-02-15 | Color picture receiver of beam index system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1655279A JPS55109090A (en) | 1979-02-15 | 1979-02-15 | Color picture receiver of beam index system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55109090A true JPS55109090A (en) | 1980-08-21 |
Family
ID=11919433
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1655279A Pending JPS55109090A (en) | 1979-02-15 | 1979-02-15 | Color picture receiver of beam index system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55109090A (en) |
-
1979
- 1979-02-15 JP JP1655279A patent/JPS55109090A/en active Pending
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