JPS57185729A - Rejector for waveform distortion - Google Patents
Rejector for waveform distortionInfo
- Publication number
- JPS57185729A JPS57185729A JP56070947A JP7094781A JPS57185729A JP S57185729 A JPS57185729 A JP S57185729A JP 56070947 A JP56070947 A JP 56070947A JP 7094781 A JP7094781 A JP 7094781A JP S57185729 A JPS57185729 A JP S57185729A
- Authority
- JP
- Japan
- Prior art keywords
- absolute values
- values
- total amount
- waveform distortion
- beta
- 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
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moirĂ© or halo
- H04N5/211—Ghost signal cancellation
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Picture Signal Circuits (AREA)
- Noise Elimination (AREA)
Abstract
PURPOSE:To prevent oscillating phenomenon due to mixing of noise, in rejecting waveform distortion such as ghost through the use of a cyclic filter, by providing a specific addition means, the 1st and 2nd comparison means, a subtraction means, and a conversion means. CONSTITUTION:An addition means 14 obtaining a total amount S of the absolute values of weight values of a plurality of weight means and their equivalent values in a cyclic filter, and the 1st comparison means 15 comparing the total amount S of the absolute values with a prescribed value alpha smaller than that at the presence of waveform distortion are provided. Further, the 2nd comparison means 18 comparing the said absolute values with a set value beta(S) when the total amount S of the absolute values exceeds the value alpha, a subtraction means 19 subtracting the said absolute values by a set value delta(S) and correcting it when the said absolute values are smaller than the set value beta(S), and a conversion means 17 setting the set values beta(S) and delta(S) in response to the change in the said total amount S are provided. Further, the correction value by the subtracting means 19 is taken as an output of the weight circuits.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56070947A JPS57185729A (en) | 1981-05-12 | 1981-05-12 | Rejector for waveform distortion |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56070947A JPS57185729A (en) | 1981-05-12 | 1981-05-12 | Rejector for waveform distortion |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57185729A true JPS57185729A (en) | 1982-11-16 |
JPH0126223B2 JPH0126223B2 (en) | 1989-05-23 |
Family
ID=13446202
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56070947A Granted JPS57185729A (en) | 1981-05-12 | 1981-05-12 | Rejector for waveform distortion |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57185729A (en) |
-
1981
- 1981-05-12 JP JP56070947A patent/JPS57185729A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPH0126223B2 (en) | 1989-05-23 |
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