JPS5752272A - Horizontal synchronizing circuit - Google Patents
Horizontal synchronizing circuitInfo
- Publication number
- JPS5752272A JPS5752272A JP16227380A JP16227380A JPS5752272A JP S5752272 A JPS5752272 A JP S5752272A JP 16227380 A JP16227380 A JP 16227380A JP 16227380 A JP16227380 A JP 16227380A JP S5752272 A JPS5752272 A JP S5752272A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- horizontal
- pulse
- phase
- detecting
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
- H04N5/12—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Synchronizing For Television (AREA)
Abstract
PURPOSE:To solve a malfunction of a circuit which is caused by distortion of transmission, by providing a circuit for detecting the coincidence of phase of a horizontal synchronizing signal and a horizontal flyback pulse, and generating a gate pulse having pulse width containing the horizontal synchronizing signal. CONSTITUTION:A horizontal synchronizing circuit is provided with a horizontal AFC circuit 1 consisting of a phase detecting circuit 5, an LPF6, a VCO7 and a frequency-dividing circuit 8 for dividing the frequency of the VCO7, and a synchronizing APC circuit 2 constituted of a phase detecting circuit 9 for detecting a phase difference between a divided pulse from the frequency-dividing circuit 8, and a horizontal flyback pulse FP outputted from a horizontal outputting circuit 13 of a horizontal deflection part 3. Moreover, it is provided with an H killer circuit 14 for detecting the coincidence of phase of the flyback pulse FP and a horizontal synchronizing signal HP, and a synchronizing state. When the coincidence of phase of the flyback pulse FP and the signal HP has been detected by the circuit 14, a gate pulse having pulse width containing the horizontal synchronizing signal period is generated, a gate circuit 4 is controlled by this pulse, and the signal HP is supplied to the circuit 1 and 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16227380A JPS5752272A (en) | 1980-11-17 | 1980-11-17 | Horizontal synchronizing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16227380A JPS5752272A (en) | 1980-11-17 | 1980-11-17 | Horizontal synchronizing circuit |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12746080A Division JPS5752268A (en) | 1980-09-12 | 1980-09-12 | Horizontal synchronizing circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5752272A true JPS5752272A (en) | 1982-03-27 |
| JPS6141193B2 JPS6141193B2 (en) | 1986-09-12 |
Family
ID=15751323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16227380A Granted JPS5752272A (en) | 1980-11-17 | 1980-11-17 | Horizontal synchronizing circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5752272A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6054595U (en) * | 1983-09-22 | 1985-04-17 | 株式会社イナックス | Heat insulation panel for storage tank assembly |
-
1980
- 1980-11-17 JP JP16227380A patent/JPS5752272A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6054595U (en) * | 1983-09-22 | 1985-04-17 | 株式会社イナックス | Heat insulation panel for storage tank assembly |
| JPS636076Y2 (en) * | 1983-09-22 | 1988-02-19 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6141193B2 (en) | 1986-09-12 |
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