SG55058A1 - Magnetic field compensation apparatus - Google Patents

Magnetic field compensation apparatus

Info

Publication number
SG55058A1
SG55058A1 SG1996003966A SG1996003966A SG55058A1 SG 55058 A1 SG55058 A1 SG 55058A1 SG 1996003966 A SG1996003966 A SG 1996003966A SG 1996003966 A SG1996003966 A SG 1996003966A SG 55058 A1 SG55058 A1 SG 55058A1
Authority
SG
Singapore
Prior art keywords
magnetic field
compensation apparatus
field compensation
magnetic
field
Prior art date
Application number
SG1996003966A
Other languages
English (en)
Inventor
Guiseppe Giannantonio
Goffredo Antonelli
Cesare Depaolis
Original Assignee
Videocolor Spa
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 Videocolor Spa filed Critical Videocolor Spa
Publication of SG55058A1 publication Critical patent/SG55058A1/en

Links

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
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/56—Arrangements for controlling cross-section of ray or beam; Arrangements for correcting aberration of beam, e.g. due to lenses
    • 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
    • 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
    • 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
    • H01J2229/003—Preventing or cancelling fields entering the enclosure

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
SG1996003966A 1990-06-25 1991-06-24 Magnetic field compensation apparatus SG55058A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT02075390A IT1251351B (it) 1990-06-25 1990-06-25 Apparecchio per la compensazione di campi magnetici

Publications (1)

Publication Number Publication Date
SG55058A1 true SG55058A1 (en) 1998-12-21

Family

ID=11171552

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1996003966A SG55058A1 (en) 1990-06-25 1991-06-24 Magnetic field compensation apparatus

Country Status (9)

Country Link
US (1) US5170094A (fr)
EP (1) EP0464576B1 (fr)
JP (1) JP3299999B2 (fr)
KR (1) KR100211001B1 (fr)
CN (1) CN1032344C (fr)
DE (1) DE69119651T2 (fr)
ES (1) ES2089060T3 (fr)
IT (1) IT1251351B (fr)
SG (1) SG55058A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3257055B2 (ja) * 1992-08-21 2002-02-18 ソニー株式会社 陰極線管
KR940016423A (ko) * 1992-12-16 1994-07-23 황선두 편향 요크
JP3135421B2 (ja) * 1993-07-06 2001-02-13 松下電子工業株式会社 カラー陰極線管
US7092352B2 (en) * 1993-07-23 2006-08-15 Aquity, Llc Cancellation systems for multicarrier transceiver arrays
US6208135B1 (en) 1994-07-22 2001-03-27 Steve J. Shattil Inductive noise cancellation circuit for electromagnetic pickups
US5475282A (en) * 1993-08-18 1995-12-12 Efa Corporation Dual-coil type CRT image tilt correcting device
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
BE1007908A3 (nl) * 1993-12-24 1995-11-14 Philips Electronics Nv Beeldweergave-inrichting met afbuigeenheid en afbuigeenheid voor een beeldweergave-inrichting.
US5815361A (en) * 1995-04-03 1998-09-29 Samsung Electronics Co., Ltd. Magnetic field shielding device in display
US5739638A (en) * 1996-06-24 1998-04-14 Thomson Consumer Electronics, Inc. Bus controlled arrangement using a duty cycle modulated control signal in a CRT
US5744904A (en) * 1996-09-16 1998-04-28 Acer Peripherals, Inc. Apparatus for reducing magnetic field radiated from deflection yoke
KR19980051541A (ko) * 1996-12-23 1998-09-15 구자홍 음극선관용 편향요크
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
US6527697B2 (en) 2000-12-21 2003-03-04 Ms Relief Ltd. Method for alleviating symptoms of certain types of disorders using electromagnetic fields
WO2007027184A1 (fr) * 2005-08-31 2007-03-08 Thomson Licensing Écran magnétique interne de dispositif d’affichage à balayage orthogonal

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3879633A (en) * 1963-12-19 1975-04-22 Rca Corp Television degaussing system with saddle-type coils adjacent CRT cone
US3322998A (en) * 1964-08-31 1967-05-30 Rca Corp Color purity correcting apparatus for colored television picture tubes
US3614519A (en) * 1967-12-18 1971-10-19 Zenith Radio Corp Cathode-ray tube magnetic shield
NL6803012A (fr) * 1968-03-02 1969-09-04
DE6940484U (de) * 1969-10-17 1970-07-02 Philips Patentverwaltung Entmagnetisierungspruefgeraet.
CA977406A (en) * 1972-04-14 1975-11-04 Yoshiichi Matsushima Degaussing device for colour cathode ray tubes
JPS5530277A (en) * 1978-08-25 1980-03-04 Matsushita Electronics Corp Color picture-tube unit
JPS61264992A (ja) * 1985-05-20 1986-11-22 Mitsubishi Electric Corp カラ−テレビジヨン受像機
JPS61296878A (ja) * 1985-06-25 1986-12-27 Mitsubishi Electric Corp カラ−テレビジヨン受像機
FR2606574B1 (fr) * 1986-11-07 1989-01-13 Videocolor Dispositif de protection de tubes cathodiques a masque vis-a-vis du champ magnetique terrestre

Also Published As

Publication number Publication date
EP0464576B1 (fr) 1996-05-22
KR920001606A (ko) 1992-01-30
JPH04253491A (ja) 1992-09-09
KR100211001B1 (ko) 1999-07-15
IT9020753A0 (it) 1990-06-25
DE69119651T2 (de) 1996-11-28
IT9020753A1 (it) 1991-12-26
ES2089060T3 (es) 1996-10-01
EP0464576A3 (en) 1992-10-28
CN1032344C (zh) 1996-07-17
JP3299999B2 (ja) 2002-07-08
EP0464576A2 (fr) 1992-01-08
DE69119651D1 (de) 1996-06-27
CN1062236A (zh) 1992-06-24
IT1251351B (it) 1995-05-08
US5170094A (en) 1992-12-08

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