SG125941A1 - Inputting information to systems including a display device - Google Patents
Inputting information to systems including a display deviceInfo
- Publication number
- SG125941A1 SG125941A1 SG200401418A SG200401418A SG125941A1 SG 125941 A1 SG125941 A1 SG 125941A1 SG 200401418 A SG200401418 A SG 200401418A SG 200401418 A SG200401418 A SG 200401418A SG 125941 A1 SG125941 A1 SG 125941A1
- Authority
- SG
- Singapore
- Prior art keywords
- light
- spot
- display device
- sensor
- display
- Prior art date
Links
Landscapes
- Position Input By Displaying (AREA)
Abstract
A pointing device includes a sensor which is sensitive to a spot of light which is scanned over the display area of a display device. The sensor generates a signal when that spot of light encounters the sensor. The time at which the sensor senses the spot of light is thus indicative of the position of the device. The spot of light may comprise light in the visible frequency range. Indeed, in certain embodiments it is light produced by the display device to display the image in the display area. Alternatively, the spot of light may be invisible light (e.g. infrared light) unrelated to the displayed image. Note that the term "light" is used in this document to include electromagnetic radiation in all frequency ranges, but most particularly infrared and visible light.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SG200401418A SG125941A1 (en) | 2004-03-16 | 2004-03-16 | Inputting information to systems including a display device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SG200401418A SG125941A1 (en) | 2004-03-16 | 2004-03-16 | Inputting information to systems including a display device |
Publications (1)
Publication Number | Publication Date |
---|---|
SG125941A1 true SG125941A1 (en) | 2006-10-30 |
Family
ID=38420710
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG200401418A SG125941A1 (en) | 2004-03-16 | 2004-03-16 | Inputting information to systems including a display device |
Country Status (1)
Country | Link |
---|---|
SG (1) | SG125941A1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5502514A (en) * | 1995-06-07 | 1996-03-26 | Nview Corporation | Stylus position sensing and digital camera with a digital micromirror device |
US6275219B1 (en) * | 1993-08-23 | 2001-08-14 | Ncr Corporation | Digitizing projection display |
-
2004
- 2004-03-16 SG SG200401418A patent/SG125941A1/en unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6275219B1 (en) * | 1993-08-23 | 2001-08-14 | Ncr Corporation | Digitizing projection display |
US5502514A (en) * | 1995-06-07 | 1996-03-26 | Nview Corporation | Stylus position sensing and digital camera with a digital micromirror device |
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