KR100313443B1 - 전자칠판의그래픽오버레이방법및그시스템 - Google Patents
전자칠판의그래픽오버레이방법및그시스템 Download PDFInfo
- Publication number
- KR100313443B1 KR100313443B1 KR1019980052462A KR19980052462A KR100313443B1 KR 100313443 B1 KR100313443 B1 KR 100313443B1 KR 1019980052462 A KR1019980052462 A KR 1019980052462A KR 19980052462 A KR19980052462 A KR 19980052462A KR 100313443 B1 KR100313443 B1 KR 100313443B1
- Authority
- KR
- South Korea
- Prior art keywords
- touch screen
- graphic
- coordinates
- ntsc
- vga
- Prior art date
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
- H04N5/44504—Circuit details of the additional information generator, e.g. details of the character or graphics signal generator, overlay mixing circuits
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
- G06F3/04883—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2340/00—Aspects of display data processing
- G09G2340/12—Overlay of images, i.e. displayed pixel being the result of switching between the corresponding input pixels
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Graphics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
Description
Claims (2)
- 터치스크린(10)에 그린 그래픽을 PC(20)에서 VGA상에 나타나도록 하여 프로젝터(30)를 통해 VGA상의 터치스크린(10)에 나타나도록 하는 전자칠판의 그래픽 오버레이 방법에 있어서;상기 터치스크린(10)에 그려진 그래픽의 스크린 좌표를 원도우 좌표로 변환하고 이미지 처리한 다음 상기 윈도우 좌표를 NTSC 좌표로 변환하여 NTSC 콤포지트상에 나타나도록 한 후 프로젝터(30)를 통해 NTSC 콤포지트상의 터치스크린(10)에 나타내는 것을 더 추가함을 특징으로 하는 전자칠판의 그래픽 오버레이 방법.
- 터치스크린(10)과, 터치스크린(10)에 그려진 그래픽을 VGA상에 나타나도록 하는 PC(20)와, PC(20)에 의해 VGA상에 나타나는 그래픽을 터치스크린(10)에 나타나도록 하는 프로젝터(30)로 구성되는 전자칠판의 그래픽 오버레이 시스템에 있어서;상기 PC(20)는,터치스크린(10)에 그린 그래픽의 스크린 좌표를 윈도우 좌표로 변환하는 스마트보드 커넬(22); 상기 변화된 윈도우 좌표의 그래픽을 이미지 처리하는 마우스 이벤트 핸들러(24); 상기 이미지 처리된 그래픽의 윈도우 좌표를 NTSC 좌표로 변환하는 OSD 커넬(26); 및 상기 NTSC 좌표의 그래픽을 NTSC 콤포지트상에 나타나도록 하는 OSD PIP 보드(28)를 더 구비한 것을 특징으로 하는 전자칠판의 그래픽 오버레이 시스템.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980052462A KR100313443B1 (ko) | 1998-12-02 | 1998-12-02 | 전자칠판의그래픽오버레이방법및그시스템 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980052462A KR100313443B1 (ko) | 1998-12-02 | 1998-12-02 | 전자칠판의그래픽오버레이방법및그시스템 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20000037730A KR20000037730A (ko) | 2000-07-05 |
KR100313443B1 true KR100313443B1 (ko) | 2001-12-28 |
Family
ID=19560932
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019980052462A KR100313443B1 (ko) | 1998-12-02 | 1998-12-02 | 전자칠판의그래픽오버레이방법및그시스템 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100313443B1 (ko) |
-
1998
- 1998-12-02 KR KR1019980052462A patent/KR100313443B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR20000037730A (ko) | 2000-07-05 |
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