WO1996014714A3 - Waveform generation - Google Patents

Waveform generation Download PDF

Info

Publication number
WO1996014714A3
WO1996014714A3 PCT/IB1995/000859 IB9500859W WO9614714A3 WO 1996014714 A3 WO1996014714 A3 WO 1996014714A3 IB 9500859 W IB9500859 W IB 9500859W WO 9614714 A3 WO9614714 A3 WO 9614714A3
Authority
WO
WIPO (PCT)
Prior art keywords
functions
fnq
gnl
gns
waveform generation
Prior art date
Application number
PCT/IB1995/000859
Other languages
French (fr)
Other versions
WO1996014714A2 (en
Inventor
Dirk Johan Adriaan Teuling
Pierick Hendrik Ten
Original Assignee
Philips Electronics Nv
Philips Norden Ab
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 Philips Electronics Nv, Philips Norden Ab filed Critical Philips Electronics Nv
Priority to DE69516848T priority Critical patent/DE69516848T2/en
Priority to EP95932159A priority patent/EP0741948B1/en
Priority to JP8515159A priority patent/JPH09507988A/en
Publication of WO1996014714A2 publication Critical patent/WO1996014714A2/en
Publication of WO1996014714A3 publication Critical patent/WO1996014714A3/en

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
    • H04N9/28—Arrangements for convergence or focusing

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

A position-dependent waveform (WCi) is generated by generating a set of functions (f1(Il),...,fp(Il),g1(If),...,gr(If)) from position information (Il,If). A sub-set of functions (fnl(Il),...,fnq(Il),gnl(If),...,gns(If)) is selected from this set of functions (f1(Il),...,fp(Il),g1(If),...,gr(If)). Only selected functions associated with the sub-set of functions (fn1(Il),...,fnq(Il),gnl(If),...,gns(If)) are each multiplied by an associated coefficient (al,...,aq,bl,...,bs). The selected functions (fnl(Il),...,fnq(Il),gnl(If),...,gns(If)) multiplied by an associated coefficient (al,...,aq,bl,...,bs) are added to form the position-dependent waveform (WCi).
PCT/IB1995/000859 1994-11-02 1995-10-10 Waveform generation WO1996014714A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE69516848T DE69516848T2 (en) 1994-11-02 1995-10-10 WAVEFORM PRODUCTION
EP95932159A EP0741948B1 (en) 1994-11-02 1995-10-10 Waveform generation
JP8515159A JPH09507988A (en) 1994-11-02 1995-10-10 Waveform generation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP94203185.7 1994-11-02
EP94203185 1994-11-02

Publications (2)

Publication Number Publication Date
WO1996014714A2 WO1996014714A2 (en) 1996-05-17
WO1996014714A3 true WO1996014714A3 (en) 1996-08-08

Family

ID=8217339

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1995/000859 WO1996014714A2 (en) 1994-11-02 1995-10-10 Waveform generation

Country Status (5)

Country Link
US (1) US5565744A (en)
EP (1) EP0741948B1 (en)
JP (1) JPH09507988A (en)
DE (1) DE69516848T2 (en)
WO (1) WO1996014714A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9524630D0 (en) * 1994-12-24 1996-01-31 Zeneca Ltd Chemical compounds
US5790210A (en) * 1995-03-24 1998-08-04 Samsung Electronics Co., Ltd. Apparatus and method for digital convergence correction
JP3436005B2 (en) * 1996-07-25 2003-08-11 松下電器産業株式会社 Waveform generator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4692804A (en) * 1985-02-22 1987-09-08 Hitachi Denshi Kabushiki Kaisha Image distortion correcting apparatus for television camera combining global and local corrections
US4935674A (en) * 1988-12-27 1990-06-19 Rca Licensing Corporation Digitally controlled convergence system
US5276782A (en) * 1989-06-29 1994-01-04 Hughes Aircraft Company Display corrector

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE7812084L (en) * 1977-11-25 1979-05-26 Mitsubishi Electric Corp TELEVISION APPARATUS
US4524307A (en) * 1982-02-17 1985-06-18 Tektronix, Inc. Convergence control system for multigun CRT
FR2579051B1 (en) * 1985-03-15 1988-06-24 Loire Electronique CONVERGENCE ADJUSTING DEVICE FOR VIDEO PROJECTOR
US4683405A (en) * 1986-06-27 1987-07-28 Rca Corporation Parabolic voltage generating apparatus for television
US4766354A (en) * 1987-01-06 1988-08-23 Zenith Electronics Corporation Independent top/bottom pincushion correction
GB2247598B (en) * 1990-08-09 1994-10-05 Syme Electronic Comm Pty Ltd Improvements in or relating to telecine chains
EP0516229B1 (en) * 1991-05-31 1996-01-03 Koninklijke Philips Electronics N.V. Display tube including a convergence correction device
JPH06133324A (en) * 1992-10-21 1994-05-13 Matsushita Electric Ind Co Ltd Convergence correction device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4692804A (en) * 1985-02-22 1987-09-08 Hitachi Denshi Kabushiki Kaisha Image distortion correcting apparatus for television camera combining global and local corrections
US4935674A (en) * 1988-12-27 1990-06-19 Rca Licensing Corporation Digitally controlled convergence system
US5276782A (en) * 1989-06-29 1994-01-04 Hughes Aircraft Company Display corrector

Also Published As

Publication number Publication date
EP0741948A1 (en) 1996-11-13
EP0741948B1 (en) 2000-05-10
DE69516848T2 (en) 2000-12-07
DE69516848D1 (en) 2000-06-15
JPH09507988A (en) 1997-08-12
US5565744A (en) 1996-10-15
WO1996014714A2 (en) 1996-05-17

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