NO133246B - - Google Patents

Download PDF

Info

Publication number
NO133246B
NO133246B NO1241/72A NO124172A NO133246B NO 133246 B NO133246 B NO 133246B NO 1241/72 A NO1241/72 A NO 1241/72A NO 124172 A NO124172 A NO 124172A NO 133246 B NO133246 B NO 133246B
Authority
NO
Norway
Prior art keywords
level
signal
duration
input
pulses
Prior art date
Application number
NO1241/72A
Other languages
English (en)
Norwegian (no)
Other versions
NO133246C (fr
Inventor
A Ta-Hong
P Simond-Cote
Original Assignee
Thomson Csf
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 Thomson Csf filed Critical Thomson Csf
Publication of NO133246B publication Critical patent/NO133246B/no
Publication of NO133246C publication Critical patent/NO133246C/no

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/14Picture signal circuitry for video frequency region
    • H04N5/16Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level
    • H04N5/18Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit
    • H04N5/185Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit for the black level

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Television Receiver Circuits (AREA)
NO124172A 1971-04-13 1972-04-11 NO133246C (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7112968A FR2133461B1 (fr) 1971-04-13 1971-04-13

Publications (2)

Publication Number Publication Date
NO133246B true NO133246B (fr) 1975-12-22
NO133246C NO133246C (fr) 1976-03-31

Family

ID=9075183

Family Applications (1)

Application Number Title Priority Date Filing Date
NO124172A NO133246C (fr) 1971-04-13 1972-04-11

Country Status (7)

Country Link
DE (1) DE2217938B2 (fr)
FR (1) FR2133461B1 (fr)
GB (1) GB1355615A (fr)
IT (1) IT957619B (fr)
NL (1) NL7204813A (fr)
NO (1) NO133246C (fr)
SE (1) SE368498B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3607164A1 (de) * 1986-03-05 1987-09-10 Grundig Emv Schaltung zur kompensation der durch ein verwischungssignal hervorgerufenen stoerungen in satelliten-fernsehempfaengern
FR2670068A1 (fr) * 1990-11-30 1992-06-05 Philips Electronics Nv Dispositif d'alignement pour signal en bande de base.

Also Published As

Publication number Publication date
FR2133461A1 (fr) 1972-12-01
DE2217938A1 (de) 1972-10-19
NL7204813A (fr) 1972-10-17
NO133246C (fr) 1976-03-31
SE368498B (fr) 1974-07-01
FR2133461B1 (fr) 1975-04-18
IT957619B (it) 1973-10-20
DE2217938B2 (de) 1980-07-24
GB1355615A (en) 1974-06-05

Similar Documents

Publication Publication Date Title
US2328946A (en) Transmission of electrical signals having direct current components
US2586957A (en) Gated amplifier circuit
US2561817A (en) Automatic frequency control circuit
US3557305A (en) Dc restoration and white clipping circuit for video recorder
US4032973A (en) Positive feedback high gain agc amplifier
GB449242A (en) Improvements in apparatus for amplifying electrical variations
NO133246B (fr)
US4249208A (en) Gamma correction circuit for a video signal and television camera suitable therefor
US2295346A (en) Television and like system
EP0062949B1 (fr) Emetteur de télévision
US3145263A (en) Black level stabilization circuit
US3813488A (en) Video stripper
US2930843A (en) Color television apparatus
US2863943A (en) Feedback clamping circuit arrangements
US3582545A (en) Automatic black level video signal clipping and clamping system
GB1026585A (en) Improvements in or relating to circuit arrangements in colour television receivers
US3352969A (en) Video amplifier in which bandwidth is a function of signal amplitude
US3535444A (en) Noise immune video circuits
US3135826A (en) Color television receiver control apparatus
US3578900A (en) Video amplifier circuit
US2601191A (en) Television sync separator
US3439115A (en) Keyed automatic gain control circuit for television receivers
US3566025A (en) Device for the automatic gain control and clamping of the black level for television receivers
GB697897A (en) Improvements in circuit-arrangements for automatic gain control
US2240507A (en) Television synchronizing and control system