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Patent Searching and Data


Title:
COORDINATE INPUTTING DEVICE AND METHOD FOR CONTROLLING THE SAME AND COMPUTER READABLE MEMORY
Document Type and Number:
Japanese Patent JP2002055779
Kind Code:
A
Abstract:

To provide a highly precise coordinate inputting device and a method for controlling this device, and a computer readable memory.

The output of a coordinate detector 1 obtained by irradiating plural prescribed positions on a coordinate inputting screen 10 is stored for the respective positions of the coordinate input screen 10 corresponding to a projection type display part 8. The position of the coordinate input screen 10 is designated by a switch 80. Then, the coordinate value of a light spot on the coordinate input screen 10 is calculated by a coordinate calculating part 32 based on the output information from the coordinate detector 1 corresponding to the designated position.


Inventors:
Tanaka, Atsushi
Application Number:
JP2000000239106
Publication Date:
February 20, 2002
Filing Date:
August 07, 2000
Export Citation:
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Assignee:
CANON INC
International Classes:
G06F3/042; G06F3/033; G06F3/041; (IPC1-7): G06F3/033; G06F3/03
Attorney, Agent or Firm:
大塚 康徳 (外2名)