JPS555550A - Vertical synchronizing circuit - Google Patents
Vertical synchronizing circuitInfo
- Publication number
- JPS555550A JPS555550A JP7884678A JP7884678A JPS555550A JP S555550 A JPS555550 A JP S555550A JP 7884678 A JP7884678 A JP 7884678A JP 7884678 A JP7884678 A JP 7884678A JP S555550 A JPS555550 A JP S555550A
- Authority
- JP
- Japan
- Prior art keywords
- noise
- vertical
- transistor
- vertical synchronizing
- circuit
- 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
- Details Of Television Scanning (AREA)
Abstract
PURPOSE:To avoid the reduction and variation of the vertical amplitude due to noise, in the vertical synchronizing circuit for television receivers. CONSTITUTION:The resistor 38 is connected to the connecting point of the resistors 16 and 17 of the emitter circuit of the transistor 15 to the base of which vertical synchronizing signal is inputted to make the potential at this point to the fixed bias. Further, this bias value is made slightly smaller than the DC voltage including noise appeared on the transistor 13. Accordingly, for the vacant channels, the transistor 15 is not turned on by noise, and since the vertical oscillation circuit is not effected with noise at vacant channel, no reduction or variation in the vertical amplitude is taken place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7884678A JPS555550A (en) | 1978-06-28 | 1978-06-28 | Vertical synchronizing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7884678A JPS555550A (en) | 1978-06-28 | 1978-06-28 | Vertical synchronizing circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS555550A true JPS555550A (en) | 1980-01-16 |
Family
ID=13673181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7884678A Pending JPS555550A (en) | 1978-06-28 | 1978-06-28 | Vertical synchronizing circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS555550A (en) |
-
1978
- 1978-06-28 JP JP7884678A patent/JPS555550A/en active Pending
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