06012980 is referenced by 98 patents and cites 30 patents.

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.

Title
Coordinates detecting device, method for same and game device
Application Number
8/875623
Publication Number
6012980
Application Date
December 11, 1997
Publication Date
January 11, 2000
Inventor
Takeshi Nagashima
Tokyo
JP
Hiroyuki Yoshida
Tokyo
JP
Agent
Finnegan Henderson Farabow Garrett & Dunner L
Assignee
Kabushiki Kaisha Sega Enterprises
JP
IPC
F41G 3/26
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