FR976427A - Dispositif pour la stabilisation des signaux de télévision - Google Patents

Dispositif pour la stabilisation des signaux de télévision

Info

Publication number
FR976427A
FR976427A FR976427DA FR976427A FR 976427 A FR976427 A FR 976427A FR 976427D A FR976427D A FR 976427DA FR 976427 A FR976427 A FR 976427A
Authority
FR
France
Prior art keywords
stabilizing
television signals
television
signals
stabilizing television
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.)
Expired
Application number
Other languages
English (en)
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.)
BAE Systems Aerospace Inc
Original Assignee
Hazeltine 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 Hazeltine Corp filed Critical Hazeltine Corp
Application granted granted Critical
Publication of FR976427A publication Critical patent/FR976427A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/52—Automatic gain control
    • H04N5/53—Keyed automatic gain control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/16—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level
    • H04N5/18—Circuitry 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
    • H04N5/185—Circuitry 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)
  • Television Receiver Circuits (AREA)
  • Control Of Amplification And Gain Control (AREA)
FR976427D 1947-12-13 1948-12-11 Dispositif pour la stabilisation des signaux de télévision Expired FR976427A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US791475A US2618703A (en) 1947-12-13 1947-12-13 Keyed direct current reinsertion circuit

Publications (1)

Publication Number Publication Date
FR976427A true FR976427A (fr) 1951-03-19

Family

ID=25153850

Family Applications (1)

Application Number Title Priority Date Filing Date
FR976427D Expired FR976427A (fr) 1947-12-13 1948-12-11 Dispositif pour la stabilisation des signaux de télévision

Country Status (5)

Country Link
US (1) US2618703A (fr)
BE (1) BE486285A (fr)
CH (1) CH270415A (fr)
FR (1) FR976427A (fr)
GB (1) GB653788A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE956588C (de) * 1953-10-16 1957-01-24 Telefunken Gmbh Schaltung zur Konstanthaltung des Schwarzwertes bei Fernsehempfaengern
DE958121C (de) * 1951-08-07 1957-02-14 Marconi Wireless Telegraph Co Schaltung zur Erzeugung einer Schwundregelspannung in Fernsehempfaengern
DE960825C (de) * 1952-03-29 1957-03-28 Interessengemeinschaft Fuer Ru Zweidiodenschaltung zur Gewinnung eines negativ gerichteten Videogemisches und zur Schwarzsteuerung in Fernsehgeraeten fuer Negativmodulation
DE1029429B (de) * 1953-03-13 1958-05-08 L Outil R B V Et De La Radio I Schaltungsanordnung zur Erzeugung einer von fern einstellbaren Gittergleichspannung fuer das Strahlerzeugersystem einer ueber Kabel gespeisten Bildaufnahmeroehre

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2744155A (en) * 1950-05-01 1956-05-01 Rca Corp Color or monochrome television receiving system
DE1016749B (de) * 1953-09-15 1957-10-03 Interessengemeinschaft Fuer Ru Schaltung zur Erzeugung einer getasteten Schwundregelspannung in Fernsehempfaengern
DE1013315B (de) * 1953-09-25 1957-08-08 Telefunken Gmbh Schaltung zur Schwundregelung bei Fernsehempfaengern
NL191748A (fr) * 1953-10-27
NL193857A (fr) * 1954-01-08
BE556420A (fr) * 1956-04-06
US3927255A (en) * 1974-05-01 1975-12-16 Rca Corp Black level clamping circuit for a television signal processor

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2241553A (en) * 1941-05-13 Television system
US2252746A (en) * 1933-04-13 1941-08-19 Emi Ltd Television device
BE412678A (fr) * 1934-12-10
DE878512C (de) * 1935-03-20 1953-04-16 Emi Ltd Verfahren zur Fadingregelung oder zur Wiedereinfuehrung der Gleich-stromkomponente in elektrische Signale, insbesondere beim Fernsehen
GB489275A (en) * 1935-11-02 1938-07-22 Telefunken Gmbh Improvements in or relating to circuits for television receivers
GB507239A (en) * 1937-11-06 1939-06-06 Alan Dower Blumlein Improvements in or relating to the transmission or reception of electrical signals
FR845897A (fr) * 1937-11-11 1939-09-04 Fernseh Ag Réglage automatique de l'amplitude
GB512109A (en) * 1937-12-24 1939-08-29 Alan Dower Blumlein Improvements in or relating to television or other signal transmission systems
GB510715A (en) * 1938-02-04 1939-08-04 Kolster Brandes Ltd Improvements in television receivers
US2240534A (en) * 1938-10-13 1941-05-06 Hazeltine Corp Television receiving system
US2259538A (en) * 1938-12-06 1941-10-21 Hazeltine Corp Television receiver with automatic shade-level control
US2296393A (en) * 1940-03-16 1942-09-22 Rca Corp Noise limiter
BE479144A (fr) * 1940-10-26
US2543037A (en) * 1946-01-07 1951-02-27 Farnsworth Res Corp Television receiver
US2525106A (en) * 1946-11-21 1950-10-10 Rca Corp Electronic keyer for direct current restoration

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE958121C (de) * 1951-08-07 1957-02-14 Marconi Wireless Telegraph Co Schaltung zur Erzeugung einer Schwundregelspannung in Fernsehempfaengern
DE960825C (de) * 1952-03-29 1957-03-28 Interessengemeinschaft Fuer Ru Zweidiodenschaltung zur Gewinnung eines negativ gerichteten Videogemisches und zur Schwarzsteuerung in Fernsehgeraeten fuer Negativmodulation
DE1029429B (de) * 1953-03-13 1958-05-08 L Outil R B V Et De La Radio I Schaltungsanordnung zur Erzeugung einer von fern einstellbaren Gittergleichspannung fuer das Strahlerzeugersystem einer ueber Kabel gespeisten Bildaufnahmeroehre
DE956588C (de) * 1953-10-16 1957-01-24 Telefunken Gmbh Schaltung zur Konstanthaltung des Schwarzwertes bei Fernsehempfaengern

Also Published As

Publication number Publication date
CH270415A (de) 1950-08-31
GB653788A (en) 1951-05-23
BE486285A (fr)
US2618703A (en) 1952-11-18

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