FI942813L - Katodisädeputkinäyttö alennetulla sähkökenttäemissiolla - Google Patents

Katodisädeputkinäyttö alennetulla sähkökenttäemissiolla Download PDF

Info

Publication number: FI942813L
Authority: FI; Finland
Prior art keywords: electric field; ray tube; cathode ray; field emission; tube display
Prior art date: 1993-06-15

Application number

FI942813A

Other languages

English (en)

Swedish (sv)

Other versions

FI112721B (fi

FI942813A0 (fi

Inventor

Frederick S Jackson

David Leaver

Andrew Ramsay Knox

John S Beeteson

Original Assignee

Ibm

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.)

1993-06-15

Filing date

1994-06-14

Publication date

1994-12-16

1994-06-14 Application filed by Ibm filed Critical Ibm

1994-06-14 Publication of FI942813A0 publication Critical patent/FI942813A0/fi

1994-12-16 Publication of FI942813L publication Critical patent/FI942813L/fi

2003-12-31 Application granted granted Critical

2003-12-31 Publication of FI112721B publication Critical patent/FI112721B/fi

Classifications

- 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
- 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
- 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
- H01J2229/0046—Preventing or cancelling fields within the enclosure
- H01J2229/0053—Demagnetisation

Landscapes

Physics & Mathematics (AREA)
Electromagnetism (AREA)
Details Of Television Scanning (AREA)
Video Image Reproduction Devices For Color Tv Systems (AREA)

FI942813A 1993-06-15 1994-06-14 Katodisädeputkinäyttö alennetulla sähkökenttäemissiolla FI112721B (fi)

Applications Claiming Priority (6)

Application Number	Priority Date	Filing Date	Title
GB9312297		1993-06-15
GB9312297A GB2279216A (en)	1993-06-15	1993-06-15	Cathode ray tube display with cancellation of electric field emission
EP94101588		1994-02-03
EP94101588A EP0630036B1 (en)	1993-06-15	1994-02-03	Cathode ray tube display with cancellation of electric field emissions
US25785094		1994-06-10
US08/257,850 US5726538A (en)	1993-06-15	1994-06-10	Cathode ray tube display with cancellation of electric field emissions

Publications (3)

Publication Number	Publication Date
FI942813A0 FI942813A0 (fi)	1994-06-14
FI942813L true FI942813L (fi)	1994-12-16
FI112721B FI112721B (fi)	2003-12-31

Family

ID=26303073

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI942813A FI112721B (fi)	1993-06-15	1994-06-14	Katodisädeputkinäyttö alennetulla sähkökenttäemissiolla

Country Status (9)

Country	Link
US (1)	US5726538A (fi)
EP (1)	EP0630036B1 (fi)
JP (1)	JPH0720808A (fi)
KR (1)	KR0150813B1 (fi)
DE (1)	DE69402615T2 (fi)
DK (1)	DK0630036T3 (fi)
FI (1)	FI112721B (fi)
GB (1)	GB2279216A (fi)
NO (1)	NO941869L (fi)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH08227666A (ja) *	1995-02-20	1996-09-03	Matsushita Electric Ind Co Ltd	Ｃｒｔディスプレイの漏洩電界低減装置
JPH09139857A (ja) *	1995-11-15	1997-05-27	Nanao:Kk	ブラウン管からの電界輻射を抑制する装置
MX9801232A (es) *	1997-02-15	1998-11-30	Lg Electronics Inc	Circuito para eliminar ruido del campo electrico de radiacion en aparato de video.
KR19990006119A (ko) *	1997-06-30	1999-01-25	김영환	음극선관 전면에서 방사되는 전자기장 상쇄장치
KR100371379B1 (ko) *	1997-10-09	2003-03-26	주식회사 엘지이아이	영상표시기기의씨알티전면vlf방사전계차폐장치
US6721423B1 (en) *	1999-01-28	2004-04-13	Ross J. Anderson	Lost cost countermeasures against compromising electromagnetic computer emanations
FI119344B (fi) *	1999-02-05	2008-10-15	It Per Lo Sviluppo Dell Elettr	Menetelmä näyttöpäätteen ympäristöönsä aiheuttaman sähkökentän pienentämiseksi ja näyttöpääte
WO2009035588A1 (en) *	2007-09-12	2009-03-19	Corning Incorporated	Derivative sampled, fast settling time current driver

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FI90598C (fi) *	1991-02-07	1994-02-25	Nokia Display Products Oy	Menetelmä ja kytkentä katodisädeputken aiheuttaman haitallisen säteilyn pienentämiseksi
EP0500349B1 (en) *	1991-02-20	1996-01-03	Nanao Corporation	Apparatus for suppressing field radiation from display device
JP2953677B2 (ja) *	1991-02-20	1999-09-27	株式会社ナナオ	ブラウン管からの電界輻射を抑制する装置
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 (fi) *	1991-07-16	1992-09-17	Tandberg Data A/S, Oslo, No
CN1040934C (zh) *	1991-07-18	1998-11-25	东芝株式会社	阴极射线管图像显示装置
US5396151A (en) *	1993-06-28	1995-03-07	Apple Computer, Inc.	Circuit for reducing ELF electric fields radiated from CRT devices

1993
- 1993-06-15 GB GB9312297A patent/GB2279216A/en not_active Withdrawn
1994
- 1994-02-03 EP EP94101588A patent/EP0630036B1/en not_active Expired - Lifetime
- 1994-02-03 DE DE69402615T patent/DE69402615T2/de not_active Expired - Fee Related
- 1994-02-03 DK DK94101588.5T patent/DK0630036T3/da active
- 1994-05-19 NO NO941869A patent/NO941869L/no not_active Application Discontinuation
- 1994-05-24 KR KR1019940011268A patent/KR0150813B1/ko not_active Expired - Fee Related
- 1994-06-02 JP JP6121472A patent/JPH0720808A/ja active Pending
- 1994-06-10 US US08/257,850 patent/US5726538A/en not_active Expired - Fee Related
- 1994-06-14 FI FI942813A patent/FI112721B/fi not_active IP Right Cessation

Also Published As

Publication number	Publication date
DK0630036T3 (da)	1997-10-27
DE69402615T2 (de)	1997-09-25
DE69402615D1 (de)	1997-05-22
JPH0720808A (ja)	1995-01-24
EP0630036B1 (en)	1997-04-16
NO941869D0 (no)	1994-05-19
EP0630036A1 (en)	1994-12-21
KR950002423A (ko)	1995-01-04
GB2279216A (en)	1994-12-21
US5726538A (en)	1998-03-10
GB9312297D0 (en)	1993-07-28
FI112721B (fi)	2003-12-31
FI942813A0 (fi)	1994-06-14
NO941869L (no)	1994-12-16
KR0150813B1 (ko)	1998-10-01

Publication	Publication Date	Title
DE69426438D1 (de)	2001-01-25	Farbkathodenstrahlröhrevorrichtung
DE69404744D1 (de)	1997-09-11	Farbkathodenstrahlröhrenvorrichtung
DE69422082D1 (de)	2000-01-20	Farbkathodenstrahlröhrevorrichtung
DE69407216D1 (de)	1998-01-22	Farbkathodenstrahlröhre
DE69400119D1 (de)	1996-05-02	Farbkathodenstrahlröhre
FI942813L (fi)	1994-12-16	Katodisädeputkinäyttö alennetulla sähkökenttäemissiolla
DE69404960D1 (de)	1997-09-18	Farbkathodenstrahlröhrevorrichtung
DE69407018D1 (de)	1998-01-08	Farbkathodenstrahlröhre
GB9225237D0 (en)	1993-01-20	Cathode ray tube display with reduced electric field radiation
DE69429563D1 (de)	2002-02-07	Farbkathodenstrahlröhre
DE69312144D1 (de)	1997-08-21	Kathodenstrahlröhre
DE69321156D1 (de)	1998-10-29	Kathodenstrahlröhre mit Ablenkjoch
DE69411650D1 (de)	1998-08-20	Kathodenstrahlröhre
DE69521303D1 (de)	2001-07-19	Anzeigevorrichtung mit kathodenstrahlröhre
DE69402123D1 (de)	1997-04-24	Farbkathodenstrahlröhre mit vermindertem Halo
DE69413763D1 (de)	1998-11-12	Farbkathodenstrahlröhre
DE69414769D1 (de)	1999-01-07	Farb-Kathodenstrahlröhre
DE69503028D1 (de)	1998-07-23	Kathodenstrahlröhre mit ablenkeinheit
KR950010159U (ko)	1995-04-24	음극선관용 게터
KR950010149U (ko)	1995-04-24	음극선관
KR950009867U (ko)	1995-04-21	음극선관
KR950015637U (ko)	1995-06-19	평면형 음극선관
DE69308439D1 (de)	1997-04-10	Kathodenstrahlröhre
KR950015603U (ko)	1995-06-19	음극선관용 게터
KR950002216U (ko)	1995-01-04	음극선관용 게터

Legal Events

Date	Code	Title	Description
2005-12-31	MA	Patent expired