Index input system comprising video camera

Application Number: 00121202
Application Date: 2000.08.04
Publication Number: 1337611
Publication Date: 2002.02.27
Priority Information:
International: G06F3/02
Applicant(s) Name: Lingyang Science &. Technology Co., Ltd.
Inventor(s) Name: Zhuang Dachang;Chen Baoquan
Patent Agency Code: 11021
Patent Agent: tang baobeng
Abstract The present invention relates to an index input system formed from camera, it is equipped with a pen-shaped mobile light-emitting device whosen pen-point possesses light-emitting diode, said light emitting device can be operated by user and moved, and can be used for emitting two coloured lights, and is also equipped with a camera which is wire-connected with computer device for picking and shooting light emitted by said mobile light-emitting device, discriminating colour of light, and processing and converting the moving trace of light point of said mobile light-emitting device into x and Y coordinate material which can be provided for computer device to implement index input function, so that the user can conveniently make index input and hand-writing input.