JPS6425611A - Feedback type comb line filter - Google Patents
Feedback type comb line filterInfo
- Publication number
- JPS6425611A JPS6425611A JP18253887A JP18253887A JPS6425611A JP S6425611 A JPS6425611 A JP S6425611A JP 18253887 A JP18253887 A JP 18253887A JP 18253887 A JP18253887 A JP 18253887A JP S6425611 A JPS6425611 A JP S6425611A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- output signal
- delay
- signal
- subtraction
- 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
- Filters That Use Time-Delay Elements (AREA)
Abstract
PURPOSE:To reduce the deterioration in the frequency characteristic caused when the delay time of a delay circuit is deviated by subtracting an output signal of a delay circuit retarding the signal inputted via a 1st subtraction circuit and an output signal of the attenuation circuit so as to form an output signal. CONSTITUTION:A reproduced chrominance signal at an input terminal 1 is retarded by a 1st delay circuit 3 via a subtraction circuit 2 and added to an output signal of the subtraction circuit 2 at an adder circuit 4. The other signal is given to a 2nd delay circuit 5 for delay time correction. The output signal of the adder circuit 4 is fed to a limiter circuit 6. The output signal of the limiter circuit 6 is subtracted from the reproduced chroma signal at the input terminal at the subtraction circuit 2 through a coefficient circuit 7 and fed back to the 1st delay circuit 3. The output signal of the limiter circuit 6 is subtracted by a subtraction circuit 8 on the other hand and subtracted from the output signal of the 2nd delay circuit 5 by a subtraction circuit 9 and the result is outputted to an output terminal 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18253887A JPS6425611A (en) | 1987-07-22 | 1987-07-22 | Feedback type comb line filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18253887A JPS6425611A (en) | 1987-07-22 | 1987-07-22 | Feedback type comb line filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6425611A true JPS6425611A (en) | 1989-01-27 |
Family
ID=16120048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18253887A Pending JPS6425611A (en) | 1987-07-22 | 1987-07-22 | Feedback type comb line filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6425611A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5837282B2 (en) * | 1974-03-22 | 1983-08-15 | フイラグロ エス ア− | Disinfectant composition containing diphosphorus derivative |
| JPS61247194A (en) * | 1985-04-25 | 1986-11-04 | Matsushita Electric Ind Co Ltd | Comb line filter |
-
1987
- 1987-07-22 JP JP18253887A patent/JPS6425611A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5837282B2 (en) * | 1974-03-22 | 1983-08-15 | フイラグロ エス ア− | Disinfectant composition containing diphosphorus derivative |
| JPS61247194A (en) * | 1985-04-25 | 1986-11-04 | Matsushita Electric Ind Co Ltd | Comb line filter |
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