FR2438398A1 - Circuit video muni d'un dispositif anti-marquage - Google Patents

Circuit video muni d'un dispositif anti-marquage

Info

Publication number
FR2438398A1
FR2438398A1 FR7828418A FR7828418A FR2438398A1 FR 2438398 A1 FR2438398 A1 FR 2438398A1 FR 7828418 A FR7828418 A FR 7828418A FR 7828418 A FR7828418 A FR 7828418A FR 2438398 A1 FR2438398 A1 FR 2438398A1
Authority
FR
France
Prior art keywords
video
switch
signal
screen
circuit
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
FR7828418A
Other languages
English (en)
Other versions
FR2438398B1 (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.)
Radiotechnique SA
Original Assignee
Radiotechnique SA
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 Radiotechnique SA filed Critical Radiotechnique SA
Priority to FR7828418A priority Critical patent/FR2438398A1/fr
Priority to DE19782844112 priority patent/DE2844112C2/de
Priority to NL7810170A priority patent/NL7810170A/xx
Priority to GB7839892A priority patent/GB2007471B/en
Priority to CA313,084A priority patent/CA1114535A/fr
Priority to JP12500378A priority patent/JPS5946471B2/ja
Priority to IE203078A priority patent/IE47294B1/en
Priority to US06/145,079 priority patent/US4338623A/en
Publication of FR2438398A1 publication Critical patent/FR2438398A1/fr
Application granted granted Critical
Publication of FR2438398B1 publication Critical patent/FR2438398B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/20—Prevention of damage to cathode-ray tubes in the event of failure of scanning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/66—Transforming electric information into light information
    • H04N5/68—Circuit details for cathode-ray display tubes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving
    • G09G2330/022—Power management, e.g. power saving in absence of operation, e.g. no data being entered during a predetermined time
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/04—Display protection

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

POUR EMPECHER LES PHENOMENES DE MARQUAGE SUR DES ECRANS DE REPRODUCTION DANS LE CAS OU UNE IMAGE, AYANT PAR EXEMPLE DES LIGNES OU D'AUTRES PARTIES CLAIRES, RESTE LONGTEMPS STATIONNAIRE, UN CIRCUIT VIDEO PROCEDE A L'EXAMEN DE LA DUREE PENDANT LAQUELLE L'INFORMATION DE L'IMAGE N'A PLUS ETE MODIFIEE. EN CAS DE DEPASSEMENT D'UNE DUREE DEFINIE D'AVANCE, LA LUMINANCE D'IMAGE EST ABAISSEE JUSQU'A UN NIVEAU SUFFISANT A L'AIDE D'AU MOINS UN COMMUTATEUR DE PROTECTION, LA LUMINANCE POUVANT, AU BESOIN, DEVENIR NULLE. APPLICATIONS: DISPOSITIFS DE TRAITEMENT D'INFORMATION, Y COMPRIS ORDINATEURS, "TELETEXT", "VIEWDATA", JEUX DE TELEVISION.
FR7828418A 1977-10-11 1978-10-04 Circuit video muni d'un dispositif anti-marquage Granted FR2438398A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR7828418A FR2438398A1 (fr) 1978-10-04 1978-10-04 Circuit video muni d'un dispositif anti-marquage
NL7810170A NL7810170A (nl) 1977-10-11 1978-10-10 Videoschakeling met beveiliging tegen inbranden.
GB7839892A GB2007471B (en) 1977-10-11 1978-10-10 Video circuit with screen burn-in protection
DE19782844112 DE2844112C2 (de) 1977-10-11 1978-10-10 Videoschaltung mit Einbrennschutz
CA313,084A CA1114535A (fr) 1977-10-11 1978-10-11 Circuit pour proteger les ecrans video contre les brulures
JP12500378A JPS5946471B2 (ja) 1977-10-11 1978-10-11 ビデオ回路
IE203078A IE47294B1 (en) 1977-10-11 1978-10-11 Video circuit with screen-burn-in protection
US06/145,079 US4338623A (en) 1977-10-11 1980-04-30 Video circuit with screen-burn-in protection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7828418A FR2438398A1 (fr) 1978-10-04 1978-10-04 Circuit video muni d'un dispositif anti-marquage

Publications (2)

Publication Number Publication Date
FR2438398A1 true FR2438398A1 (fr) 1980-04-30
FR2438398B1 FR2438398B1 (fr) 1982-04-23

Family

ID=9213344

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7828418A Granted FR2438398A1 (fr) 1977-10-11 1978-10-04 Circuit video muni d'un dispositif anti-marquage

Country Status (1)

Country Link
FR (1) FR2438398A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0965974A1 (fr) * 1998-06-19 1999-12-22 Pioneer Electronic Corporation Méthode et système pour commander la luminosité d'un panneau d'affichage à plasma

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/72 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0965974A1 (fr) * 1998-06-19 1999-12-22 Pioneer Electronic Corporation Méthode et système pour commander la luminosité d'un panneau d'affichage à plasma

Also Published As

Publication number Publication date
FR2438398B1 (fr) 1982-04-23

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse