SG48951A1 - Circuit for reducing ELR electric fields radiated from CRT devices - Google Patents

Circuit for reducing ELR electric fields radiated from CRT devices

Info

Publication number
SG48951A1
SG48951A1 SG1996004035A SG1996004035A SG48951A1 SG 48951 A1 SG48951 A1 SG 48951A1 SG 1996004035 A SG1996004035 A SG 1996004035A SG 1996004035 A SG1996004035 A SG 1996004035A SG 48951 A1 SG48951 A1 SG 48951A1
Authority
SG
Singapore
Prior art keywords
elr
reducing
circuit
electric fields
crt devices
Prior art date
Application number
SG1996004035A
Other languages
English (en)
Inventor
Richard D Cappels Sr
Original Assignee
Apple Computer
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 Apple Computer filed Critical Apple Computer
Publication of SG48951A1 publication Critical patent/SG48951A1/en

Links

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
    • 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)
  • Details Of Television Scanning (AREA)
  • Transforming Electric Information Into Light Information (AREA)
SG1996004035A 1993-06-28 1994-05-16 Circuit for reducing ELR electric fields radiated from CRT devices SG48951A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/084,291 US5396151A (en) 1993-06-28 1993-06-28 Circuit for reducing ELF electric fields radiated from CRT devices

Publications (1)

Publication Number Publication Date
SG48951A1 true SG48951A1 (en) 1998-05-18

Family

ID=22184023

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1996004035A SG48951A1 (en) 1993-06-28 1994-05-16 Circuit for reducing ELR electric fields radiated from CRT devices

Country Status (6)

Country Link
US (1) US5396151A (de)
EP (1) EP0706738B1 (de)
JP (1) JPH08512180A (de)
AU (1) AU7094294A (de)
SG (1) SG48951A1 (de)
WO (1) WO1995001046A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2279216A (en) * 1993-06-15 1994-12-21 Ibm Cathode ray tube display with cancellation of electric field emission
GB2293299A (en) * 1994-09-15 1996-03-20 Ibm Electric field emission reduction system
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
AU8506698A (en) 1997-07-25 1999-02-16 Apple Computer, Inc. System and method for generating high-luminance windows on computer display device
US6313823B1 (en) 1998-01-20 2001-11-06 Apple Computer, Inc. System and method for measuring the color output of a computer monitor
US6031336A (en) * 1998-06-17 2000-02-29 Motorola, Inc. Field emission display and method for the operation thereof
US7412654B1 (en) * 1998-09-24 2008-08-12 Apple, Inc. Apparatus and method for handling special windows in a display
US6246177B1 (en) 2000-04-28 2001-06-12 Motorola, Inc. Partial discharge method for operating a field emission display

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4823248A (en) * 1987-04-07 1989-04-18 Murata Manufacturing Co., Ltd. High voltage generator
US5043598A (en) * 1988-09-20 1991-08-27 Tdk Corporation High voltage supply having a voltage stabilizer
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
SE469456B (sv) * 1991-11-22 1993-07-05 Nokia Data Ab Foerfarande och anordning i en bildskaermsenhet foer att reducera elektriska vaexelfaelt i enhetens omgivning

Also Published As

Publication number Publication date
US5396151A (en) 1995-03-07
AU7094294A (en) 1995-01-17
EP0706738A1 (de) 1996-04-17
WO1995001046A1 (en) 1995-01-05
EP0706738B1 (de) 2002-01-09
JPH08512180A (ja) 1996-12-17

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