JPS54115115A - Clamp circuit - Google Patents
Clamp circuitInfo
- Publication number
- JPS54115115A JPS54115115A JP2236478A JP2236478A JPS54115115A JP S54115115 A JPS54115115 A JP S54115115A JP 2236478 A JP2236478 A JP 2236478A JP 2236478 A JP2236478 A JP 2236478A JP S54115115 A JPS54115115 A JP S54115115A
- Authority
- JP
- Japan
- Prior art keywords
- level
- becomes
- voltage
- normal
- clamp
- 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)
- Television Signal Processing For Recording (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Abstract
PURPOSE: To enable normal clamp operation to be performed by detecting the level of the period to become a constant value periodically.
CONSTITUTION: When the back porch of the horizontal synchronizing pulse Ph becomes, e.g., higher than that at the normal time owing to noise Pn, a voltage Vs exceeds a reference voltage Va and the output of a comparator 13a becomes low level. When the normal level is again reached after this detection, the voltage Vs becomes within the reference level range. Hence, the control pulse Sc becomes low level in the time corresponding to the length of 1H and this causes the generation of a clamp pulse Sg to be approximately perfectly inhibited, thus in a clamp circuit 3 clamping of the period eroded by the noise Pn is prevented.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53022364A JPS6057122B2 (en) | 1978-02-28 | 1978-02-28 | clamp circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53022364A JPS6057122B2 (en) | 1978-02-28 | 1978-02-28 | clamp circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54115115A true JPS54115115A (en) | 1979-09-07 |
JPS6057122B2 JPS6057122B2 (en) | 1985-12-13 |
Family
ID=12080562
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53022364A Expired JPS6057122B2 (en) | 1978-02-28 | 1978-02-28 | clamp circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6057122B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57166202U (en) * | 1981-04-14 | 1982-10-20 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO320736B1 (en) * | 2005-03-08 | 2006-01-23 | Wahl Process Systems As | Enzymatic hydrolysis process for collagen and proteinaceous resins and a clarification tank for collagen separation, and applications thereof. |
-
1978
- 1978-02-28 JP JP53022364A patent/JPS6057122B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57166202U (en) * | 1981-04-14 | 1982-10-20 |
Also Published As
Publication number | Publication date |
---|---|
JPS6057122B2 (en) | 1985-12-13 |
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