ITTO20021069A1 - Metodo di regolazione elettronica della geometria in un videoproiettore utilizzato in retroproiezione e videoproiettore utilizzante tale metodo. - Google Patents

Metodo di regolazione elettronica della geometria in un videoproiettore utilizzato in retroproiezione e videoproiettore utilizzante tale metodo.

Info

Publication number
ITTO20021069A1
ITTO20021069A1 ITTO20021069A ITTO20021069A1 IT TO20021069 A1 ITTO20021069 A1 IT TO20021069A1 IT TO20021069 A ITTO20021069 A IT TO20021069A IT TO20021069 A1 ITTO20021069 A1 IT TO20021069A1
Authority
IT
Italy
Prior art keywords
video projector
geometry
rear projection
electronic adjustment
projector used
Prior art date
Application number
Other languages
English (en)
Inventor
Domenico Toffoli
Original Assignee
Sim2 Multimedia 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 Sim2 Multimedia Spa filed Critical Sim2 Multimedia Spa
Priority to ITTO20021069 priority Critical patent/ITTO20021069A1/it
Priority to EP03777039A priority patent/EP1568216A1/en
Priority to AU2003286296A priority patent/AU2003286296A1/en
Priority to PCT/IB2003/005635 priority patent/WO2004054251A1/it
Priority to TW92134583A priority patent/TWI250374B/zh
Publication of ITTO20021069A1 publication Critical patent/ITTO20021069A1/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
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3179—Video signal processing therefor
    • H04N9/3185—Geometric adjustment, e.g. keystone or convergence
    • 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
    • H04N3/22—Circuits for controlling dimensions, shape or centering of picture on screen
    • H04N3/23—Distortion correction, e.g. for pincushion distortion correction, S-correction
    • H04N3/233—Distortion correction, e.g. for pincushion distortion correction, S-correction using active elements
    • H04N3/2335—Distortion correction, e.g. for pincushion distortion correction, S-correction using active elements with calculating means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Controls And Circuits For Display Device (AREA)
ITTO20021069 2002-12-06 2002-12-06 Metodo di regolazione elettronica della geometria in un videoproiettore utilizzato in retroproiezione e videoproiettore utilizzante tale metodo. ITTO20021069A1 (it)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ITTO20021069 ITTO20021069A1 (it) 2002-12-06 2002-12-06 Metodo di regolazione elettronica della geometria in un videoproiettore utilizzato in retroproiezione e videoproiettore utilizzante tale metodo.
EP03777039A EP1568216A1 (en) 2002-12-06 2003-12-04 Method for electronic adjustment of the geometry in a videoprojector used in back projection and a videoprojector utilizing the method thereof
AU2003286296A AU2003286296A1 (en) 2002-12-06 2003-12-04 Method for electronic adjustment of the geometry in a videoprojector used in back projection and a videoprojector utilizing the method thereof
PCT/IB2003/005635 WO2004054251A1 (it) 2002-12-06 2003-12-04 Metodo di regolazione elettronica della geometria in un videoproiettore utilizzato in retroproiezione e videoproiettore utilizzante tale metodo
TW92134583A TWI250374B (en) 2002-12-06 2003-12-05 Method for electronic adjustment of the geometry in a videoprojector used in back projection and a videoprojector utilizing the method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO20021069 ITTO20021069A1 (it) 2002-12-06 2002-12-06 Metodo di regolazione elettronica della geometria in un videoproiettore utilizzato in retroproiezione e videoproiettore utilizzante tale metodo.

Publications (1)

Publication Number Publication Date
ITTO20021069A1 true ITTO20021069A1 (it) 2004-06-07

Family

ID=32500580

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO20021069 ITTO20021069A1 (it) 2002-12-06 2002-12-06 Metodo di regolazione elettronica della geometria in un videoproiettore utilizzato in retroproiezione e videoproiettore utilizzante tale metodo.

Country Status (5)

Country Link
EP (1) EP1568216A1 (it)
AU (1) AU2003286296A1 (it)
IT (1) ITTO20021069A1 (it)
TW (1) TWI250374B (it)
WO (1) WO2004054251A1 (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6225420B2 (ja) * 2012-12-19 2017-11-08 セイコーエプソン株式会社 プロジェクター及びその制御方法
CN111918043B (zh) 2019-05-10 2022-04-15 中强光电股份有限公司 投影系统、投影画面调整方法以及投影机
CN116095282A (zh) * 2022-10-27 2023-05-09 中企瑞铭科技(北京)有限公司 用于图像投影的方法、处理设备及存储介质

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5101197A (en) * 1988-08-17 1992-03-31 In Focus Systems, Inc. Electronic transparency method and apparatus
JP2653899B2 (ja) * 1990-06-07 1997-09-17 松下電器産業株式会社 画像補正装置
JP3409330B2 (ja) * 1991-02-08 2003-05-26 ソニー株式会社 投射型表示装置の調整装置および調整方法
BE1010346A5 (nl) * 1996-06-12 1998-06-02 Barco Nv Niet expliciet toepassingsgericht apparaat en gebruik ervan voor de automatische afregeling van een projector.
CN1210944C (zh) * 1998-10-02 2005-07-13 旺宏电子股份有限公司 用于防止梯形失真的方法和装置

Also Published As

Publication number Publication date
TW200419295A (en) 2004-10-01
TWI250374B (en) 2006-03-01
WO2004054251A1 (it) 2004-06-24
AU2003286296A1 (en) 2004-06-30
EP1568216A1 (en) 2005-08-31

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