JPS54115115A - Clamp circuit - Google Patents

Clamp circuit

Info

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
Application number
JP2236478A
Other languages
Japanese (ja)
Other versions
JPS6057122B2 (en
Inventor
Tadaaki Yoshinaka
Tadashi Otsuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP53022364A priority Critical patent/JPS6057122B2/en
Publication of JPS54115115A publication Critical patent/JPS54115115A/en
Publication of JPS6057122B2 publication Critical patent/JPS6057122B2/en
Expired legal-status Critical Current

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
JP53022364A 1978-02-28 1978-02-28 clamp circuit Expired JPS6057122B2 (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57166202U (en) * 1981-04-14 1982-10-20

Families Citing this family (1)

* Cited by examiner, † Cited by third party
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.

Cited By (1)

* Cited by examiner, † Cited by third party
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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