JPS5453923A - Noise eliminating circuit - Google Patents
Noise eliminating circuitInfo
- Publication number
- JPS5453923A JPS5453923A JP12054977A JP12054977A JPS5453923A JP S5453923 A JPS5453923 A JP S5453923A JP 12054977 A JP12054977 A JP 12054977A JP 12054977 A JP12054977 A JP 12054977A JP S5453923 A JPS5453923 A JP S5453923A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- video
- circuit
- noise
- linear
- 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
- Picture Signal Circuits (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
PURPOSE: To obtain the circuit less in S/N depreciation, by enabling to reject noise surely from the video signal regradless of the movement of picture, in the circuit rejecting the noise of TV video signal.
CONSTITUTION: The detection circuits 5a and 5b detecting the minimum difference signal minimizing the absolute value of the difference level signal of plurality between the signal of a plural number of video elements of other field screen corresponding to the vicinity of the video element X of a location of the field screen having video signal and the signal of the video element X of a position are provided, and the non-linear circuits 6A and 6B feeding the minimum value signal of the circuit 5a and 5b and outputting the linear and non-linear output signal depending on the level are provided. The output of the circuts 6A and 6B is fed and added to the synthesizing circuit 8 through the latch circuits 7A and 7B having the delay time for phase compensation. Further, if the level of the minimum difference signal is less than a given number, the arithmetic mean between the signal of the other field screen corresponding to the minimum difference signal and the signal of the video element X is performed with the mean circuit 9, outputting video signal rejecting noise at the output terminals 2
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12054977A JPS5453923A (en) | 1977-10-07 | 1977-10-07 | Noise eliminating circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12054977A JPS5453923A (en) | 1977-10-07 | 1977-10-07 | Noise eliminating circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5453923A true JPS5453923A (en) | 1979-04-27 |
JPS6142909B2 JPS6142909B2 (en) | 1986-09-24 |
Family
ID=14789045
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12054977A Granted JPS5453923A (en) | 1977-10-07 | 1977-10-07 | Noise eliminating circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5453923A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57212884A (en) * | 1981-06-25 | 1982-12-27 | Victor Co Of Japan Ltd | Noise reduction circuit |
JPS57212883A (en) * | 1981-06-25 | 1982-12-27 | Victor Co Of Japan Ltd | Noise reduction circuit |
JPS60197077A (en) * | 1984-03-21 | 1985-10-05 | Victor Co Of Japan Ltd | Noise reduction circuit of video signal |
WO1988007307A1 (en) * | 1987-03-20 | 1988-09-22 | Sony Corporation | Circuit for reducing noise |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6350309U (en) * | 1986-09-17 | 1988-04-05 |
-
1977
- 1977-10-07 JP JP12054977A patent/JPS5453923A/en active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57212884A (en) * | 1981-06-25 | 1982-12-27 | Victor Co Of Japan Ltd | Noise reduction circuit |
JPS57212883A (en) * | 1981-06-25 | 1982-12-27 | Victor Co Of Japan Ltd | Noise reduction circuit |
JPS60197077A (en) * | 1984-03-21 | 1985-10-05 | Victor Co Of Japan Ltd | Noise reduction circuit of video signal |
JPH0436506B2 (en) * | 1984-03-21 | 1992-06-16 | Victor Company Of Japan | |
WO1988007307A1 (en) * | 1987-03-20 | 1988-09-22 | Sony Corporation | Circuit for reducing noise |
US5005081A (en) * | 1987-03-20 | 1991-04-02 | Sony Corporation | Method and apparatus for reducing noise in a video signal |
Also Published As
Publication number | Publication date |
---|---|
JPS6142909B2 (en) | 1986-09-24 |
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