Coordinates detecting device, method for same and game device
US6012980A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1997 |
| Grant date | Jan 11, 2000 |
| Priority date | — |
| Expiry date | Dec 11, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63F2300/8076
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The coordinates detecting device comprises a plurality of sensors (LS1, LS2: photosensors, or the like,) located in prescribed positions in a coordinates detecting region for detecting coordinates set on an image display surface (4) which displays images by means of scanning lines; a counter which counts the number of clock inputs with respect to the horizontal direction of the image display surface and the number of scans in the vertical direction, on the basis of the scan timing of the scanning lines as detected by the sensors; and a coordinates identifying circuit which, when a desired trigger signal (LP3) is input from an external source, outputs the count values of the counters at the time that this trigger signal is input as relative coordinates on the image display surface. The coordinates of any position can be determined accurately even when the display uses a special television format, such as HDTV, or the like, and regardless of differences in the scanning system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.