IT1255807B - Apparecchio per la compensazione di campi magnetici - Google Patents

Apparecchio per la compensazione di campi magnetici

Info

Publication number
IT1255807B
IT1255807B ITMI921956A ITMI921956A IT1255807B IT 1255807 B IT1255807 B IT 1255807B IT MI921956 A ITMI921956 A IT MI921956A IT MI921956 A ITMI921956 A IT MI921956A IT 1255807 B IT1255807 B IT 1255807B
Authority
IT
Italy
Prior art keywords
coil
degaussing
tube
compensation
compensation coil
Prior art date
Application number
ITMI921956A
Other languages
English (en)
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24987286&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=IT1255807(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed filed Critical
Publication of ITMI921956A0 publication Critical patent/ITMI921956A0/it
Publication of ITMI921956A1 publication Critical patent/ITMI921956A1/it
Application granted granted Critical
Publication of IT1255807B publication Critical patent/IT1255807B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/16—Picture reproducers using cathode ray tubes
    • H04N9/29—Picture reproducers using cathode ray tubes using demagnetisation or compensation of external magnetic fields

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

Una bobina di compensazione (50) per un visualizzatore a fascio elettronico di scansione costituito, ad esempio, da un tubo per televisione a colori (20) riduce l'indesiderabile deflessione dei fasci elettronici dovuta alla presenza di campi magnetici ambientali rappresentati, in particolare, dal campo geomagnetico. La bobina (50) comporta un avvolgimento disposto in modo tale da circondare i1 collo (32) del tubo 20, perpendicolarmente all'asse z. Una bobina di smagnetizzazione, (10) risulta posizionata sul bulbo del tubo, in modo tale da provvedere alla smagnetizzazione delle strutture metalliche contenute all'interno del bulbo. Per garantire una neutralizzazione più completa del campo magnetico, la corrente di alimentazione che viene fornita alla bobina di compensazione, viene interrotta durante l'operazione di smagnetizzazione. Per impedire l'accumulo di una carica sulla bobina di compensazione (50), un terminale collegato, per il tramite di un resistore (R5) ad una sorgente di potenziale di riferimento (MASSA).
ITMI921956A 1991-08-09 1992-08-07 Apparecchio per la compensazione di campi magnetici IT1255807B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/743,041 US5168195A (en) 1991-08-09 1991-08-09 Magnetic field compensation apparatus

Publications (3)

Publication Number Publication Date
ITMI921956A0 ITMI921956A0 (it) 1992-08-07
ITMI921956A1 ITMI921956A1 (it) 1994-02-07
IT1255807B true IT1255807B (it) 1995-11-16

Family

ID=24987286

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI921956A IT1255807B (it) 1991-08-09 1992-08-07 Apparecchio per la compensazione di campi magnetici

Country Status (8)

Country Link
US (1) US5168195A (it)
JP (2) JP3518552B2 (it)
KR (1) KR100251029B1 (it)
CN (1) CN1033128C (it)
DE (1) DE4225362C2 (it)
GB (1) GB2258591B (it)
HK (1) HK1004768A1 (it)
IT (1) IT1255807B (it)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07162881A (ja) * 1993-12-10 1995-06-23 Mitsubishi Electric Corp カラー陰極線管ディスプレイ装置
JP3541468B2 (ja) * 1994-12-15 2004-07-14 ソニー株式会社 表示装置
KR19980031295U (ko) * 1996-11-30 1998-08-17 배순훈 세탁기의 콘트롤판넬결합장치
IT1294366B1 (it) * 1997-08-29 1999-03-24 Sgs Thomson Microelectronics Circuito di smagnetizzazione per dispositivi di visualizzazione a tubo catodico
JPH11127446A (ja) * 1997-10-24 1999-05-11 Matsushita Electric Ind Co Ltd 地磁気補正装置とテレビジョン受像機
FI107683B (fi) * 1997-11-28 2001-09-14 Nokia Display Products Oy Menetelmä ja laite jäännösmagnetismista aiheutuvien kuvaputken kuvavirheiden korjaamiseksi
JP2001309398A (ja) * 2000-04-18 2001-11-02 Sony Corp 画像表示装置及び画像表示装置の地磁気による画像の傾き補正方法
JP2003199120A (ja) * 2001-12-28 2003-07-11 Matsushita Electric Ind Co Ltd カラー陰極線管
EP1550293A4 (en) * 2002-04-19 2007-02-28 Thomson Licensing AUXILIARY SPOOL DRIVER SWITCHING FOR A CATHODE RAY TUBE
EP1458184A1 (en) * 2003-03-10 2004-09-15 Thomson Licensing S.A. Arrangement comprising a microprocessor, a demagnetization circuit and a switched mode power supply, and a respective display unit
CN112133518B (zh) * 2020-10-19 2022-06-28 洛阳轴承研究所有限公司 一种轴承套圈在线消磁系统
US12015356B2 (en) * 2021-09-03 2024-06-18 L3Harris Technologies, Inc. Method and apparatus for absorption of high energy load feedback in degaussing applications

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3106658A (en) * 1956-06-08 1963-10-08 Zenith Radio Corp Magnetic compensator
US2962622A (en) * 1958-10-10 1960-11-29 Westinghouse Electric Corp Television degaussing apparatus
US4380716A (en) * 1981-10-09 1983-04-19 Hazeltine Corporation External magnetic field compensator for a CRT
US4441052A (en) * 1982-11-26 1984-04-03 Rca Corporation Degaussing circuit for television receiver having switched mode power supply
US4535270A (en) * 1983-11-17 1985-08-13 Rca Corporation Resonant degaussing without residual magnetism
CA1238764A (en) * 1986-12-08 1988-07-05 Tenneco Canada Inc. Production of chlorine dioxide
GB2196817A (en) * 1986-10-30 1988-05-05 Ibm Degaussing system offsets ambient magnetic fields
US4899082A (en) * 1987-03-25 1990-02-06 Digital Equipment Corporation Apparatus for compensating for image rotation in a CRT display
US4760489A (en) * 1987-06-12 1988-07-26 Rca Licensing Corporation Video display degaussing apparatus
US4950955A (en) * 1988-09-06 1990-08-21 Rca Licensing Corporation Magnetic field compensator for a CRT
DE3830931A1 (de) * 1988-09-12 1990-03-22 Thomson Brandt Gmbh Verfahren zur kompensation des erdmagnetfeldes in einer bildroehre
JPH02213193A (ja) * 1989-02-14 1990-08-24 Tokyo Electric Co Ltd 電子部品ユニットの製造方法
JPH03158090A (ja) * 1989-11-15 1991-07-08 Nec Corp ピュリティ調整付ｃｒｔディスプレイ装置

Also Published As

Publication number Publication date
US5168195A (en) 1992-12-01
CN1069614A (zh) 1993-03-03
JP3518552B2 (ja) 2004-04-12
ITMI921956A1 (it) 1994-02-07
DE4225362C2 (de) 2001-05-10
CN1033128C (zh) 1996-10-23
KR930005473A (ko) 1993-03-23
JPH05207491A (ja) 1993-08-13
ITMI921956A0 (it) 1992-08-07
HK1004768A1 (en) 1998-12-04
GB9216629D0 (en) 1992-09-16
JP2003348612A (ja) 2003-12-05
GB2258591A (en) 1993-02-10
GB2258591B (en) 1995-02-15
DE4225362A1 (de) 1993-02-11
KR100251029B1 (ko) 2000-04-15

Similar Documents

Publication Publication Date Title
IT1255807B (it) Apparecchio per la compensazione di campi magnetici
KR910008783A (ko) 비디오 표시 장치
ES2018809B3 (es) Sistema de presentacion en color y tubo de rayos catodicos
ATE133514T1 (de) Ablenkjoch mit überlappenden ablenkspulen
SU1271386A3 (ru) Намагничивающее устройство дл магнита чистоты цвета цветного кинескопа с компланарным расположением трех электронных прожекторов
DE69024789D1 (de) Selbstkonvergierendes Farbbildröhrensystem mit grossem Bildschirm
ATE141713T1 (de) Farbbildröhre mit verringertem fleckwachstum
ATE79980T1 (de) Bildwiedergabevorrichtung mit mitteln zur kompensation der streufelder.
KR890004382A (ko) 편향 요크
MY109034A (en) Deflection device for use in a color cathode-ray tube
KR950008407B1 (ko) 음극선관 디스플레이 장치
ATE118116T1 (de) Magnetischer zusammenbau.
NL8702500A (nl) Kathodestraalbuis met afbuigsysteem.
GB1393998A (en) Television camera tube assemblies
FI881569A0 (fi) Stabilisering av bredden hos en tv-bild.
ES455061A1 (es) Un dispositivo perfeccionado de presentacion visual de tele-vision en color.
FR2313832A1 (fr) Procede et dispositif d'elimination des defauts de groupement des faisceaux electroniques dans un tube cathodique couleur a canons coplanaires
JPH0139385Y2 (it)
WO1988006346A1 (en) Device for limiting the magnetic emission in cathode ray tube monitors
KR970006039B1 (ko) 전류제어에 의한 수평직선성 보정장치
KR930016126U (ko) 음극선관의 편향요크
KR950009915U (ko) 칼라 음극선관의 퓨리티 컨버전스 마그네트
FI842484A (fi) Kopplingsanordning foer vertikalavlaenkning av elektronstraolar i ett televisionsbildroer.
JPS6457550A (en) Defrection device for in-line type color picture tube
MY107095A (en) Magnetic shunt for defletion yokes.

Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970827