JPS5547778A - Noise rejection circuit - Google Patents
Noise rejection circuitInfo
- Publication number
- JPS5547778A JPS5547778A JP12073078A JP12073078A JPS5547778A JP S5547778 A JPS5547778 A JP S5547778A JP 12073078 A JP12073078 A JP 12073078A JP 12073078 A JP12073078 A JP 12073078A JP S5547778 A JPS5547778 A JP S5547778A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- synchronizing
- output
- synchronizing pulse
- horizontal
- 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
- Synchronizing For Television (AREA)
- Picture Signal Circuits (AREA)
- Noise Elimination (AREA)
Abstract
PURPOSE: To make stable the synchronism, by rejecting noise component during horizontal scanning period due to ghost signal.
CONSTITUTION: The synchronizing pulse 8 from the TV signal 7 picked up at the synchronizing separation circuit 6 is fed to the vertical (horizontal) synchronizing pulse detection circuit 3(4) and other required circuits. When the circuit 4 discriminates the horizontal synchronizing pulse with the clock from the clock circuit 1 and the pulse width of the synchronizing pulse 8, the output of the circuit 4 is taken for AND11 condition with the output from the frequency dividing circuit 9 to output the horizontal synchronizing pulse. To the circuit 10, the output of the counter 2 and circuit 9 and the synchronizing pulse 8 are fed and as the result of logical sum, the horizontal synchronizing signal rejected for noise due to ghost can be obtained. Excellent synchronizing performance can be obtained by using this for the synchronism of a TV receiver.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12073078A JPS5547778A (en) | 1978-09-30 | 1978-09-30 | Noise rejection circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12073078A JPS5547778A (en) | 1978-09-30 | 1978-09-30 | Noise rejection circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5547778A true JPS5547778A (en) | 1980-04-04 |
JPS6212713B2 JPS6212713B2 (en) | 1987-03-20 |
Family
ID=14793561
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12073078A Granted JPS5547778A (en) | 1978-09-30 | 1978-09-30 | Noise rejection circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5547778A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62171A (en) * | 1985-06-26 | 1987-01-06 | Pioneer Electronic Corp | Reproduced horizontal synchronizing signal generator |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6447940U (en) * | 1987-09-18 | 1989-03-24 |
-
1978
- 1978-09-30 JP JP12073078A patent/JPS5547778A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62171A (en) * | 1985-06-26 | 1987-01-06 | Pioneer Electronic Corp | Reproduced horizontal synchronizing signal generator |
Also Published As
Publication number | Publication date |
---|---|
JPS6212713B2 (en) | 1987-03-20 |
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