SE9300321D0 - Anordning i en bildskaermsenhet foer att reducera elektriska vaexelfaelt i enhetens omgivning - Google Patents

Anordning i en bildskaermsenhet foer att reducera elektriska vaexelfaelt i enhetens omgivning

Info

Publication number
SE9300321D0
SE9300321D0 SE9300321A SE9300321A SE9300321D0 SE 9300321 D0 SE9300321 D0 SE 9300321D0 SE 9300321 A SE9300321 A SE 9300321A SE 9300321 A SE9300321 A SE 9300321A SE 9300321 D0 SE9300321 D0 SE 9300321D0
Authority
SE
Sweden
Prior art keywords
environment
vaccinal
field
screen unit
capacitance
Prior art date
Application number
SE9300321A
Other languages
English (en)
Other versions
SE9300321L (sv
SE500865C2 (sv
Inventor
Knud Madsen
Original Assignee
Icl Systems Ab
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 Icl Systems Ab filed Critical Icl Systems Ab
Priority to SE9300321A priority Critical patent/SE500865C2/sv
Publication of SE9300321D0 publication Critical patent/SE9300321D0/sv
Priority to GB9401545A priority patent/GB2274760B/en
Priority to DE4402663A priority patent/DE4402663C2/de
Priority to US08/189,041 priority patent/US5449975A/en
Priority to FR9401148A priority patent/FR2701185B1/fr
Priority to FI940488A priority patent/FI940488A/sv
Publication of SE9300321L publication Critical patent/SE9300321L/sv
Publication of SE500865C2 publication Critical patent/SE500865C2/sv

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
    • H04N3/18—Generation of supply voltages, in combination with electron beam deflecting
    • H04N3/185—Maintaining dc voltage constant
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/003—Arrangements for eliminating unwanted electromagnetic effects, e.g. demagnetisation arrangements, shielding coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/06—Screens for shielding; Masks interposed in the electron stream
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/0007—Elimination of unwanted or stray electromagnetic effects
    • H01J2229/0015—Preventing or cancelling fields leaving the enclosure

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Details Of Television Scanning (AREA)
  • Picture Signal Circuits (AREA)
  • Keying Circuit Devices (AREA)
  • Emergency Protection Circuit Devices (AREA)
SE9300321A 1993-02-02 1993-02-02 Anordning och förfarande vid en bildskärmsenhet för att reducera elektriska växelfält i enhetens omgivning SE500865C2 (sv)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE9300321A SE500865C2 (sv) 1993-02-02 1993-02-02 Anordning och förfarande vid en bildskärmsenhet för att reducera elektriska växelfält i enhetens omgivning
GB9401545A GB2274760B (en) 1993-02-02 1994-01-27 Visual display unit arrangement
DE4402663A DE4402663C2 (de) 1993-02-02 1994-01-29 Verfahren und Anordnung zum Minimieren elektrischer Wechselfelder in der Umgebung von Bildschirmsichtgeräten
US08/189,041 US5449975A (en) 1993-02-02 1994-01-31 Method and arrangement for reducing electrical alternating fields generated in the surroundings of a display unit
FR9401148A FR2701185B1 (fr) 1993-02-02 1994-02-02 Montage d'unité d'affichage vidéo réduisant les champs électriques alternatifs en son voisinage, et procédé associé.
FI940488A FI940488A (sv) 1993-02-02 1994-02-02 Bildskärmsanordning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9300321A SE500865C2 (sv) 1993-02-02 1993-02-02 Anordning och förfarande vid en bildskärmsenhet för att reducera elektriska växelfält i enhetens omgivning

Publications (3)

Publication Number Publication Date
SE9300321D0 true SE9300321D0 (sv) 1993-02-02
SE9300321L SE9300321L (sv) 1994-08-03
SE500865C2 SE500865C2 (sv) 1994-09-19

Family

ID=20388745

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9300321A SE500865C2 (sv) 1993-02-02 1993-02-02 Anordning och förfarande vid en bildskärmsenhet för att reducera elektriska växelfält i enhetens omgivning

Country Status (6)

Country Link
US (1) US5449975A (sv)
DE (1) DE4402663C2 (sv)
FI (1) FI940488A (sv)
FR (1) FR2701185B1 (sv)
GB (1) GB2274760B (sv)
SE (1) SE500865C2 (sv)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE469456B (sv) * 1991-11-22 1993-07-05 Nokia Data Ab Foerfarande och anordning i en bildskaermsenhet foer att reducera elektriska vaexelfaelt i enhetens omgivning
US5689157A (en) * 1992-05-08 1997-11-18 Hitachi, Ltd. Cathode-ray tube display unit in which unwanted radiant electric field from face plate of cathode-ray tube is decreased
KR100190160B1 (ko) * 1995-10-27 1999-06-01 윤종용 디스플레이 기기의 전계 차폐 회로
GB2307382A (en) * 1995-11-13 1997-05-21 Thomson Multimedia Sa Deflection circuit compensates for EHT variations
JPH09233355A (ja) * 1996-02-27 1997-09-05 Totoku Electric Co Ltd 不要電界の低減方法
JP3451859B2 (ja) * 1996-11-28 2003-09-29 松下電器産業株式会社 陰極線管装置
FI119344B (sv) * 1999-02-05 2008-10-15 It Per Lo Sviluppo Dell Elettr Förfarande för att minska ett elektriskt fält som en bildskärmsterminal alstrar i sin omgivning och en bildskärmsterminal

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4207493A (en) * 1978-09-26 1980-06-10 Rca Corporation Cathode ray tube arc-over protection
DE3603476A1 (de) * 1986-02-05 1987-08-06 Licentia Gmbh Bildschirmgeraet
US4968106A (en) * 1987-12-04 1990-11-06 Murata Manufacturing Co., Ltd. High voltage generating apparatus for television equipment
FI90598C (sv) * 1991-02-07 1994-02-25 Nokia Display Products Oy Förfarande och koppling för minskning av skadlig strålning förorsakat av katodstrålerör
SE469456B (sv) * 1991-11-22 1993-07-05 Nokia Data Ab Foerfarande och anordning i en bildskaermsenhet foer att reducera elektriska vaexelfaelt i enhetens omgivning
US5231332A (en) * 1992-04-15 1993-07-27 Zenith Electronics Corporation AC electric field emission suppression in CRT image displays
US5162706A (en) * 1992-04-17 1992-11-10 Tzu-Chiang Wu Anti-horizontal-impulse cathode-ray-tube driving system

Also Published As

Publication number Publication date
SE9300321L (sv) 1994-08-03
DE4402663C2 (de) 2001-05-03
FI940488A0 (sv) 1994-02-02
FR2701185A1 (fr) 1994-08-05
FR2701185B1 (fr) 1995-10-13
GB2274760A (en) 1994-08-03
US5449975A (en) 1995-09-12
FI940488A (sv) 1994-08-03
GB9401545D0 (en) 1994-03-23
SE500865C2 (sv) 1994-09-19
GB2274760B (en) 1996-07-24
DE4402663A1 (de) 1994-08-04

Similar Documents

Publication Publication Date Title
TW367479B (en) Drive circuit for liquid-crystal displays and liquid-crystal display including drive circuits
FI951767A (sv) Foerfarande foer reducering av effektfoerbrukningen av en elektronisk anordning
GB2131635B (en) Bridge rectifier circuit
CA2305536A1 (en) Phase controlled dimming system with active filter for preventing flickering and undesired intensity changes
SE9300321D0 (sv) Anordning i en bildskaermsenhet foer att reducera elektriska vaexelfaelt i enhetens omgivning
MY106884A (en) Noice eliminating element and electrical circuit having the same
SE9103469D0 (sv) Anordning i en bildskaermsenhet foer att reducera elektriska vaexelfaelt i enhetens omgivning
SE9303839L (sv) Högspänningsfilter
CA2191794A1 (fr) Circuit d'alimentation et de modulation pour une etiquette interrogeable a distance
CA2078573A1 (en) Electronic switching power supply
US5066895A (en) Electroluminescent lamp driver
KR940013295A (ko) 고주파수 동작용 회로 장치
ATE243384T1 (de) Elektronisches schaltnetzteil
KR960015189A (ko) 모니터의 수평 출력 트랜지스터의 보호 장치
DE59009689D1 (de) Differenzstromschutzschalter mit Transduktorschaltung mit Einrichtung zum Symmetrieren von Signalkurven.
JPS5437223A (en) All wave rectifying circuit
JPS5915545B2 (ja) 端末機の電源給電方法
KR19980073064A (ko) 직류 전원장치
KR910006837A (ko) Crt디스플레이장치
KR940025162A (ko) 동기 정류회로
KR970071454A (ko) 엘. 씨이. 디이(lcd) 모니터의 밝기 조절 장치
TW274160B (en) Switch-mode power supply with control of output supply voltage and overcurrent
EP0376759A3 (en) Liquid crystal display apparatus
KR960016391A (ko) 플라이백 트랜스포머
KR960028136A (ko) 저주파의 자계강도 차단방법

Legal Events

Date Code Title Description
NUG Patent has lapsed