JPS5593377A - Sn ratio improving unit - Google Patents
Sn ratio improving unitInfo
- Publication number
- JPS5593377A JPS5593377A JP200379A JP200379A JPS5593377A JP S5593377 A JPS5593377 A JP S5593377A JP 200379 A JP200379 A JP 200379A JP 200379 A JP200379 A JP 200379A JP S5593377 A JPS5593377 A JP S5593377A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- noise
- video signal
- ratio
- slicing
- 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
- Processing Of Color Television Signals (AREA)
- Picture Signal Circuits (AREA)
Abstract
PURPOSE: To obtain the video signal improving the SN ratio, by picking up the high band of video signal wrong in SN ratio, slicing the fine noise included in the base of the signal with the slice circuit, and adding it with the low band of the video signal again.
CONSTITUTION: When the video signal is inputted, the output a delayed for T at the delay line 2 and the signal b not including noise component in which the high part is cut through the low pass filter 1, are fed to the differential amplifier 3. The output signal c which is the difference between the both signals is the signal representing the profile and includes noise. After obtaining the signal d without noise by slicing the noise present at the base by means of the slice circuit 4, it is added with the signal through the low pass filter 1 at the adder 5 and the signal f rejecting noise from the original signal wrong in SN can be obtained.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP200379A JPS5593377A (en) | 1979-01-10 | 1979-01-10 | Sn ratio improving unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP200379A JPS5593377A (en) | 1979-01-10 | 1979-01-10 | Sn ratio improving unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5593377A true JPS5593377A (en) | 1980-07-15 |
Family
ID=11517227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP200379A Pending JPS5593377A (en) | 1979-01-10 | 1979-01-10 | Sn ratio improving unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5593377A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60134670A (en) * | 1983-11-28 | 1985-07-17 | アールシーエー トムソン ライセンシング コーポレイシヨン | Video signal processor |
| EP0492462B1 (en) * | 1990-12-20 | 1996-03-06 | Sanyo Electric Co., Ltd. | Waveform detecting circuit |
-
1979
- 1979-01-10 JP JP200379A patent/JPS5593377A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60134670A (en) * | 1983-11-28 | 1985-07-17 | アールシーエー トムソン ライセンシング コーポレイシヨン | Video signal processor |
| EP0492462B1 (en) * | 1990-12-20 | 1996-03-06 | Sanyo Electric Co., Ltd. | Waveform detecting circuit |
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