ES2090707T3 - Metodo y configuracion relacionado con unidades de presentacion visual para la reduccion del campo electrico alterno en las proximidades de la unidad. - Google Patents
Metodo y configuracion relacionado con unidades de presentacion visual para la reduccion del campo electrico alterno en las proximidades de la unidad.Info
- Publication number
- ES2090707T3 ES2090707T3 ES92924091T ES92924091T ES2090707T3 ES 2090707 T3 ES2090707 T3 ES 2090707T3 ES 92924091 T ES92924091 T ES 92924091T ES 92924091 T ES92924091 T ES 92924091T ES 2090707 T3 ES2090707 T3 ES 2090707T3
- Authority
- ES
- Spain
- Prior art keywords
- unit
- voltage
- proximities
- reduction
- electric field
- 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.)
- Expired - Lifetime
Links
- 230000005684 electric field Effects 0.000 title 1
- 230000000007 visual effect Effects 0.000 title 1
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)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
- Details Of Television Scanning (AREA)
- Picture Signal Circuits (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
LA PRESENTE INVENCION SE REFIERE A UN METODO Y UNA DISPOSICION REFERIDOS A UNIDADES DE VISUALIZACION, PREFERENTEMENTE UN TUBO DE IMAGEN (1), PARA REDUCIR A UN MINIMO LOS CAMPOS ALTERNOS ELECTRICOS GENERADOS POR LAS UNIDADES DE VISUALIZACION EN LOS ALREDEDORES DE LA UNIDAD. LA UNIDAD DE VISUALIZACION ESTA PROVISTA DE UNA PARTE CONECTADA A TENSION (5) SOBRE LA CUAL OCURREN VARIACIAONES DE TENSION NO DESEADAS. ESTAS VARIACIONES DE TENSION SE INDICAN. SE GENERA UNA SEÑAL QUE ES DE FASE INVERTIDA EN RELACION CON LAS VARIACIONES DE TENSION INDICADAS. LA SEÑAL INVERTIDA DE FASE GENERADA SE REALIMENTA A LA PARTE CONECTADA DE TENSION (5) PARA COMPENSAR LAS VARIACIONES DE TENSION.
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 (1)
Publication Number | Publication Date |
---|---|
ES2090707T3 true ES2090707T3 (es) | 1996-10-16 |
Family
ID=20384411
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES92924091T Expired - Lifetime 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. |
Country Status (7)
Country | Link |
---|---|
US (1) | US5614789A (es) |
EP (1) | EP0613580B1 (es) |
DE (1) | DE69209517T2 (es) |
ES (1) | ES2090707T3 (es) |
FI (1) | FI106486B (es) |
SE (1) | SE469456B (es) |
WO (1) | WO1993010537A1 (es) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69321156T2 (de) * | 1992-05-08 | 1999-06-02 | Hitachi Ltd | Kathodenstrahlröhre mit Ablenkjoch |
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 |
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)
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 (fi) * | 1991-02-07 | 1994-02-25 | Nokia Display Products Oy | Menetelmä ja kytkentä katodisädeputken aiheuttaman haitallisen säteilyn pienentämiseksi |
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 (es) * | 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 |
-
1991
- 1991-11-22 SE SE9103469A patent/SE469456B/sv not_active IP Right Cessation
-
1992
- 1992-11-19 ES ES92924091T patent/ES2090707T3/es not_active Expired - Lifetime
- 1992-11-19 US US08/244,400 patent/US5614789A/en not_active Expired - Lifetime
- 1992-11-19 DE DE69209517T patent/DE69209517T2/de not_active Expired - Fee Related
- 1992-11-19 EP EP92924091A patent/EP0613580B1/en not_active Expired - Lifetime
- 1992-11-19 WO PCT/SE1992/000794 patent/WO1993010537A1/en active IP Right Grant
-
1994
- 1994-05-20 FI FI942361A patent/FI106486B/fi not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE9103469D0 (sv) | 1991-11-22 |
EP0613580A1 (en) | 1994-09-07 |
DE69209517T2 (de) | 1996-10-31 |
FI942361A0 (fi) | 1994-05-20 |
FI106486B (fi) | 2001-02-15 |
DE69209517D1 (de) | 1996-05-02 |
SE9103469L (sv) | 1993-05-23 |
US5614789A (en) | 1997-03-25 |
EP0613580B1 (en) | 1996-03-27 |
FI942361A (fi) | 1994-05-20 |
WO1993010537A1 (en) | 1993-05-27 |
SE469456B (sv) | 1993-07-05 |
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Legal Events
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