FR2455829A1 - - Google Patents

Info

Publication number
FR2455829A1
FR2455829A1 FR8010119A FR8010119A FR2455829A1 FR 2455829 A1 FR2455829 A1 FR 2455829A1 FR 8010119 A FR8010119 A FR 8010119A FR 8010119 A FR8010119 A FR 8010119A FR 2455829 A1 FR2455829 A1 FR 2455829A1
Authority
FR
France
Prior art keywords
output
input
separator
hand
negative sense
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
FR8010119A
Other languages
English (en)
Other versions
FR2455829B1 (fr
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.)
Grass Valley Group Inc
Original Assignee
Grass Valley Group Inc
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 Grass Valley Group Inc filed Critical Grass Valley Group Inc
Publication of FR2455829A1 publication Critical patent/FR2455829A1/fr
Application granted granted Critical
Publication of FR2455829B1 publication Critical patent/FR2455829B1/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
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • H04N5/213—Circuitry for suppressing or minimising impulsive noise

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Synchronizing For Television (AREA)

Abstract

CE CIRCUIT POUR REDUIRE LES EFFETS DU BRUIT D'IMPULSIONS DE SENS NEGATIF DANS LES SIGNAUX VIDEO COMPOSITE DE TELEVISION OPERE EN TANT QUE CIRCUIT SEPARATEUR D'IMPULSIONS DE SYNCHRONISATION. IL COMPREND UNE LIGNE D'ENTREE 10 DU SIGNAL VIDEO COMPOSITE, UN RETABLISSEMENT 2 DE COURANT CONTINU ALIMENTE PAR UNE SOURCE DE COURANT VARIABLE 6 RELIEE A SON TOUR A LA SORTIE D'UNE BASCULE MONOSTABLE REENCLENCHABLE 8 QUI PEUT ETRE DECLENCHEE PAR UNE BARRE PARASITE D'IMPULSION DE SENS NEGATIF DU SIGNAL VIDEO COMPOSITE, LA SORTIE DU RETABLISSEUR 2 ETANT RELIEE A UNE ENTREE D'UN SEPARATEUR D'AMPLITUDE 4 DONT L'AUTRE ENTREE RECOIT UNE TENSION DE REFERENCE V, LA SORTIE DE CE SEPARATEUR D'AMPLITUDE ETANT RELIEE D'UNE PART A L'ENTREE DE LA BASCULE 8 ET D'AUTRE PART A LA LIGNE 12 PORTANT LE SIGNAL SEPARE DE SYNCHRONISATION. APPLICATION AUX APPAREILS DE TELEVISION.
FR8010119A 1979-04-30 1980-04-29 Expired FR2455829B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/028,306 US4254435A (en) 1979-04-30 1979-04-30 Noise eliminator for television synchronizing signal separating circuits

Publications (2)

Publication Number Publication Date
FR2455829A1 true FR2455829A1 (fr) 1980-11-28
FR2455829B1 FR2455829B1 (fr) 1983-11-10

Family

ID=21842704

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8010119A Expired FR2455829B1 (fr) 1979-04-30 1980-04-29

Country Status (7)

Country Link
US (1) US4254435A (fr)
JP (1) JPS55147078A (fr)
CA (1) CA1139876A (fr)
DE (1) DE3015848C2 (fr)
FR (1) FR2455829B1 (fr)
GB (1) GB2048607B (fr)
NL (1) NL8001080A (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4379309A (en) * 1981-04-22 1983-04-05 The United States Of America As Represented By The Secretary Of The Navy Composite video signal separator
JPS5892187A (ja) * 1981-11-27 1983-06-01 Pioneer Video Corp 同期分離回路
DE3317672C2 (de) * 1983-05-14 1985-05-09 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co KG, 8510 Fürth Schaltungsanordnung zur Ableitung eines Trigger-Signals aus einem Videosignal
US4604646A (en) * 1984-02-01 1986-08-05 Karlock James A Video processing circuit
JPH0720205B2 (ja) * 1985-02-28 1995-03-06 キヤノン株式会社 同期分離回路
US4672450A (en) * 1985-04-09 1987-06-09 Benson, Inc. Composite video synchronization pulse separator for color image processor
US4680633A (en) * 1985-04-24 1987-07-14 Third Domain, Inc. Circuit and method for producing accurate dc restored video waveform, horizontal sync pulses, and vertical sync pulses
US4723165A (en) * 1986-11-26 1988-02-02 Zenith Electronics Corporation AC coupled sync separator system with filter DC feedback
US5202612A (en) * 1988-01-29 1993-04-13 Sinano Electric Co., Ltd. Concrete vibrator
US5345271A (en) * 1992-01-18 1994-09-06 Goldstar Co., Ltd. Apparatus for separating vertical synchronizing signal components from image signals in video cassette recorder

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1146238A (fr) * 1956-03-06 1957-11-07 Radiotechnique Perfectionnement aux récepteurs de télévision

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3809808A (en) * 1972-09-13 1974-05-07 Bell Telephone Labor Inc Video sync separator
JPS532289B2 (fr) * 1973-03-05 1978-01-26
US3873768A (en) * 1973-11-28 1975-03-25 Gte Sylvania Inc Gated bias noise suppression circuitry
JPS6014553B2 (ja) * 1975-02-17 1985-04-13 日本電気株式会社 テレビジヨン同期信号分離回路
US4040090A (en) * 1976-05-07 1977-08-02 Gte Laboratories Incorporated Bias gate for noise suppression circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1146238A (fr) * 1956-03-06 1957-11-07 Radiotechnique Perfectionnement aux récepteurs de télévision

Also Published As

Publication number Publication date
NL8001080A (nl) 1980-11-03
GB2048607A (en) 1980-12-10
DE3015848A1 (de) 1980-11-06
US4254435A (en) 1981-03-03
GB2048607B (en) 1983-08-03
JPS55147078A (en) 1980-11-15
JPS6111022B2 (fr) 1986-04-01
CA1139876A (fr) 1983-01-18
DE3015848C2 (de) 1982-09-16
FR2455829B1 (fr) 1983-11-10

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Legal Events

Date Code Title Description
ST Notification of lapse