FI107683B - Förfarande och anordning för avhjälpande av bildfel orsakade av remanens på ett bildrör - Google Patents

Förfarande och anordning för avhjälpande av bildfel orsakade av remanens på ett bildrör Download PDF

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Publication number
FI107683B
FI107683B FI974360A FI974360A FI107683B FI 107683 B FI107683 B FI 107683B FI 974360 A FI974360 A FI 974360A FI 974360 A FI974360 A FI 974360A FI 107683 B FI107683 B FI 107683B
Authority
FI
Finland
Prior art keywords
magnetic field
att
image
kännetecknat
förfarande enligt
Prior art date
Application number
FI974360A
Other languages
English (en)
Finnish (fi)
Other versions
FI974360A (sv
FI974360A0 (fi
Inventor
Raimo Johannes Ikonen
Reijo Einari Pitkaenen
Ilkka Juhani Saarinen
Original Assignee
Nokia Display Products Oy
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 Display Products Oy filed Critical Nokia Display Products Oy
Priority to FI974360A priority Critical patent/FI107683B/sv
Publication of FI974360A0 publication Critical patent/FI974360A0/fi
Priority to EP98660122A priority patent/EP0920222A3/en
Priority to US09/196,729 priority patent/US6107743A/en
Publication of FI974360A publication Critical patent/FI974360A/sv
Application granted granted Critical
Publication of FI107683B publication Critical patent/FI107683B/sv

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)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
FI974360A 1997-11-28 1997-11-28 Förfarande och anordning för avhjälpande av bildfel orsakade av remanens på ett bildrör FI107683B (sv)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI974360A FI107683B (sv) 1997-11-28 1997-11-28 Förfarande och anordning för avhjälpande av bildfel orsakade av remanens på ett bildrör
EP98660122A EP0920222A3 (en) 1997-11-28 1998-11-12 Method and apparatus for correcting image errors caused by residual magnetism in a picture tube
US09/196,729 US6107743A (en) 1997-11-28 1998-11-20 Method and apparatus for correcting image errors caused by residual magnetism in a picture tube

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI974360A FI107683B (sv) 1997-11-28 1997-11-28 Förfarande och anordning för avhjälpande av bildfel orsakade av remanens på ett bildrör
FI974360 1997-11-28

Publications (3)

Publication Number Publication Date
FI974360A0 FI974360A0 (fi) 1997-11-28
FI974360A FI974360A (sv) 1999-05-29
FI107683B true FI107683B (sv) 2001-09-14

Family

ID=8550030

Family Applications (1)

Application Number Title Priority Date Filing Date
FI974360A FI107683B (sv) 1997-11-28 1997-11-28 Förfarande och anordning för avhjälpande av bildfel orsakade av remanens på ett bildrör

Country Status (3)

Country Link
US (1) US6107743A (sv)
EP (1) EP0920222A3 (sv)
FI (1) FI107683B (sv)

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3955115A (en) * 1975-01-03 1976-05-04 Zenith Radio Corporation Color television with VRT and automatic degaussing
JPS558107A (en) * 1978-06-30 1980-01-21 Sharp Corp Demagnetizing device for video projection unit
JPS5569938A (en) * 1978-11-21 1980-05-27 Toshiba Corp Color picture tube device
JPS5831689A (ja) * 1981-08-19 1983-02-24 Toshiba Corp 消磁装置
DE3311102A1 (de) * 1983-03-26 1984-09-27 Robert Bosch Gmbh, 7000 Stuttgart Verfahren und anordnung zur einstellung der farbeinheit einer farbbildroehre
FR2545265B1 (fr) * 1983-04-26 1985-12-13 Videocolor Sa Procede et appareil de reglage rapide, a l'aide d'un aimant permanent, de la convergence statique et de la purete d'un tube de television en couleurs
US5021712A (en) * 1987-03-25 1991-06-04 Digital Equipment Corporation Apparatus for compensating for image rotation in a CRT display
NL8801566A (nl) * 1988-06-20 1990-01-16 Philips Nv Beeldbuis voorzien van een elektromagnetische afbuigeenheid.
DE3830931A1 (de) * 1988-09-12 1990-03-22 Thomson Brandt Gmbh Verfahren zur kompensation des erdmagnetfeldes in einer bildroehre
JPH03224383A (ja) * 1990-01-29 1991-10-03 Mitsubishi Electric Corp 消磁回路
JPH04215389A (ja) * 1990-12-14 1992-08-06 Mitsubishi Electric Corp ブラウン管のポールピース消磁回路
US5168195A (en) * 1991-08-09 1992-12-01 Thomson Consumer Electronics, Inc. Magnetic field compensation apparatus
US5499156A (en) * 1994-11-18 1996-03-12 Hughes Aircraft Company Forced, resonant degaussing system and method
KR970010216B1 (en) * 1994-12-02 1997-06-23 Samsung Electronics Co Ltd Tilt control circuit for crt
JP3541468B2 (ja) * 1994-12-15 2004-07-14 ソニー株式会社 表示装置
JPH08212939A (ja) * 1995-02-08 1996-08-20 Mitsubishi Electric Corp Ｃｒｔおよびその解像度改善装置
US5675219A (en) * 1995-12-21 1997-10-07 Thomson Consumer Electronics, Inc. Degaussing circuit for wide-range ac
JP3634476B2 (ja) * 1995-12-25 2005-03-30 エヌイーシー三菱電機ビジュアルシステムズ株式会社 カラー陰極線管ディスプレイ装置およびその補償方法

Also Published As

Publication number Publication date
EP0920222A3 (en) 2000-02-02
US6107743A (en) 2000-08-22
FI974360A (sv) 1999-05-29
EP0920222A2 (en) 1999-06-02
FI974360A0 (fi) 1997-11-28

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