JPS6489764A - Noise eliminating circuit - Google Patents
Noise eliminating circuitInfo
- Publication number
- JPS6489764A JPS6489764A JP62244310A JP24431087A JPS6489764A JP S6489764 A JPS6489764 A JP S6489764A JP 62244310 A JP62244310 A JP 62244310A JP 24431087 A JP24431087 A JP 24431087A JP S6489764 A JPS6489764 A JP S6489764A
- Authority
- JP
- Japan
- Prior art keywords
- edge
- output
- circuit
- signal
- coefficient
- 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
Abstract
PURPOSE:To prevent the resolution of the title circuit from deteriorating by switching the characteristics of a coefficient K in accordance with an edge detecting output when a noise canceling signal is generated with the multiplication of the differential output of the signal before and after one frame and the coefficient stored in a memory. CONSTITUTION:The larger absolute value is selected out of the values of the differential output of the signals on the input side of a latch circuit 11 and on the output side, and the differential output of the signals on the input side of a latch circuit 12 and on the output side, and it is supplied to an edge deciding circuit 26 to switch a coefficient converting action. When the value is larger than an edge deciding level A, the edge deciding circuit 26 outputs the edge signal at one bit, and supplies it to the characteristic switching control terminal of a ROM 15. Thus, at the edge part, even when the value of the differential signal becomes large, the canceling signal is not so large, and the resolution can be prevented from deteriorating.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62244310A JPS6489764A (en) | 1987-09-30 | 1987-09-30 | Noise eliminating circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62244310A JPS6489764A (en) | 1987-09-30 | 1987-09-30 | Noise eliminating circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6489764A true JPS6489764A (en) | 1989-04-04 |
Family
ID=17116831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62244310A Pending JPS6489764A (en) | 1987-09-30 | 1987-09-30 | Noise eliminating circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6489764A (en) |
-
1987
- 1987-09-30 JP JP62244310A patent/JPS6489764A/en active Pending
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