SE9103469L - Foerfarande och anordning i en bildskaermsenhet foer att reducera elektriska vaexelfaelt i enhetens omgivning - Google Patents

Foerfarande och anordning i en bildskaermsenhet foer att reducera elektriska vaexelfaelt i enhetens omgivning

Info

Publication number
SE9103469L
SE9103469L SE9103469A SE9103469A SE9103469L SE 9103469 L SE9103469 L SE 9103469L SE 9103469 A SE9103469 A SE 9103469A SE 9103469 A SE9103469 A SE 9103469A SE 9103469 L SE9103469 L SE 9103469L
Authority
SE
Sweden
Prior art keywords
environment
pct
voltage variations
voltage
vaccinely
Prior art date
Application number
SE9103469A
Other languages
Unknown language ( )
English (en)
Other versions
SE469456B (sv
SE9103469D0 (sv
Inventor
R Kristiansson
Original Assignee
Nokia Data 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 Nokia Data Ab filed Critical Nokia Data Ab
Priority to SE9103469A priority Critical patent/SE469456B/sv
Publication of SE9103469D0 publication Critical patent/SE9103469D0/sv
Priority to PCT/SE1992/000794 priority patent/WO1993010537A1/en
Priority to ES92924091T priority patent/ES2090707T3/es
Priority to DE69209517T priority patent/DE69209517T2/de
Priority to US08/244,400 priority patent/US5614789A/en
Priority to EP92924091A priority patent/EP0613580B1/en
Publication of SE9103469L publication Critical patent/SE9103469L/sv
Publication of SE469456B publication Critical patent/SE469456B/sv
Priority to FI942361A priority patent/FI106486B/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
    • 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)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Picture Signal Circuits (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Liquid Crystal Display Device Control (AREA)
SE9103469A 1991-11-22 1991-11-22 Foerfarande och anordning i en bildskaermsenhet foer att reducera elektriska vaexelfaelt i enhetens omgivning SE469456B (sv)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE9103469A SE469456B (sv) 1991-11-22 1991-11-22 Foerfarande och anordning i en bildskaermsenhet foer att reducera elektriska vaexelfaelt i enhetens omgivning
PCT/SE1992/000794 WO1993010537A1 (en) 1991-11-22 1992-11-19 A method and an arrangement relating to visual display units, forreducing the electric alternating field in the unit surroundings
ES92924091T ES2090707T3 (es) 1991-11-22 1992-11-19 Metodo y configuracion relacionado con unidades de presentacion visual para la reduccion del campo electrico alterno en las proximidades de la unidad.
DE69209517T DE69209517T2 (de) 1991-11-22 1992-11-19 Verfahren und anordnung für bildschirmgeräte zur verminderung des in der nähe erzeugten elektrischen wechselfelds
US08/244,400 US5614789A (en) 1991-11-22 1992-11-19 Apparatus and method of reducing varying electrical fields in video display terminals
EP92924091A EP0613580B1 (en) 1991-11-22 1992-11-19 A method and an arrangement relating to visual display units, for reducing the electric alternating field in the unit's surroundings
FI942361A FI106486B (sv) 1991-11-22 1994-05-20 Förfarande och arrangemang i samband med bilskärmar, för att minska växelströmsfältet i bildskärmens omgivning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9103469A SE469456B (sv) 1991-11-22 1991-11-22 Foerfarande och anordning i en bildskaermsenhet foer att reducera elektriska vaexelfaelt i enhetens omgivning

Publications (3)

Publication Number Publication Date
SE9103469D0 SE9103469D0 (sv) 1991-11-22
SE9103469L true SE9103469L (sv) 1993-05-23
SE469456B SE469456B (sv) 1993-07-05

Family

ID=20384411

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9103469A SE469456B (sv) 1991-11-22 1991-11-22 Foerfarande och anordning i en bildskaermsenhet foer att reducera elektriska vaexelfaelt i enhetens omgivning

Country Status (7)

Country Link
US (1) US5614789A (sv)
EP (1) EP0613580B1 (sv)
DE (1) DE69209517T2 (sv)
ES (1) ES2090707T3 (sv)
FI (1) FI106486B (sv)
SE (1) SE469456B (sv)
WO (1) WO1993010537A1 (sv)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP0568783B1 (en) * 1992-05-08 1998-09-23 Hitachi, Ltd. Cathode-ray tube apparatus and yoke
SE500865C2 (sv) * 1993-02-02 1994-09-19 Icl Systems Ab Anordning och förfarande vid en bildskärmsenhet för att reducera elektriska växelfält i enhetens omgivning
US5396151A (en) * 1993-06-28 1995-03-07 Apple Computer, Inc. Circuit for reducing ELF electric fields radiated from CRT devices
GB2283646A (en) * 1993-10-30 1995-05-10 Ibm Reducing electric field emission from a CRT display
GB2293299A (en) * 1994-09-15 1996-03-20 Ibm Electric field emission reduction system
TW395550U (en) * 1994-10-19 2000-06-21 Hitachi Ltd Cathode-ray tube display unit in which the unwanted radiant electric field from the face plate of cathode-ray tube is decreased
KR100371379B1 (ko) * 1997-10-09 2003-03-26 주식회사 엘지이아이 영상표시기기의씨알티전면vlf방사전계차폐장치

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE450298B (sv) * 1984-09-24 1987-06-15 Bengt Jonsson Anordning vid for dataterminal avsedd bildskermsenhet
NO873467L (no) * 1986-12-17 1988-06-20 Jonsson Teknik Ab Anordning for avledning av elektrostatisk felt.
WO1989003631A1 (en) * 1987-10-16 1989-04-20 Norad Corporation Crt shield with double coated mesh
FI90598C (sv) * 1991-02-07 1994-02-25 Nokia Display Products Oy Förfarande och koppling för minskning av skadlig strålning förorsakat av katodstrålerör
US5151635A (en) * 1991-06-20 1992-09-29 Apple Computer, Inc. Apparatus and method for reducing the magnitude of time varying electric fields in CRT displays
DE4123565C1 (sv) * 1991-07-16 1992-09-17 Tandberg Data A/S, Oslo, No
SE500865C2 (sv) * 1993-02-02 1994-09-19 Icl Systems Ab Anordning och förfarande vid en bildskärmsenhet för att reducera elektriska växelfält i enhetens omgivning

Also Published As

Publication number Publication date
FI942361A (sv) 1994-05-20
SE469456B (sv) 1993-07-05
EP0613580A1 (en) 1994-09-07
DE69209517T2 (de) 1996-10-31
EP0613580B1 (en) 1996-03-27
DE69209517D1 (de) 1996-05-02
FI106486B (sv) 2001-02-15
US5614789A (en) 1997-03-25
WO1993010537A1 (en) 1993-05-27
SE9103469D0 (sv) 1991-11-22
ES2090707T3 (es) 1996-10-16
FI942361A0 (sv) 1994-05-20

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