Input system

Abstract

An input system includes a first gesture detection unit and a second gesture detection unit. The first gesture detection unit includes a first light emitting device for emitting a first light beam, a first light sensing device for receiving the first light beam reflected by a first motion trajectory generated by a user and outputting a first image signal, and a first processing unit for processing the first image signal and outputting a first command signal. The second gesture detection unit includes a second light emitting device for emitting a second light beam, a second light sensing device for receiving the second light beam reflected by a second motion trajectory generated by the user and outputting a second image signal, and a second processing unit for processing the second image signal and outputting a second command signal.

What is claimed is: 
     
         1 . An input system, comprising:
 a first gesture detection unit having a first sensible range, wherein the first gesture detection unit includes:
 a first light emitting device for emitting a first light beam; 
 a first light sensing device for receiving the first light beam which is reflected by a first motion trajectory generated by a user and outputting a first image signal accordingly; 
 a first processing unit for processing the first image signal and outputting a first command signal accordingly; 
   a second gesture detection unit having a second sensible range, wherein the second gesture detection unit includes:
 a second light emitting device for emitting a second light beam; 
 a second light sensing device for receiving the second light beam which is reflected by a second motion trajectory generated by the user and outputting a second image signal accordingly; and 
 a second processing unit for processing the second image signal and outputting a second command signal accordingly. 
   
     
     
         2 . The input system of  claim 1 , wherein the first command signal includes a gesture command signal or a cursor movement command signal. 
     
     
         3 . The input system of  claim 2 , wherein the gesture command signal includes an upward command signal, a downward command signal, a leftward command signal, a rightward command signal, a clockwise command signal, a counterclockwise command signal, a push forward command signal, a pull backward command signal, or a waving-hand command signal. 
     
     
         4 . The input system of  claim 2 , wherein the cursor movement command signal includes a cursor motion signal or an object motion signal. 
     
     
         5 . The input system of  claim 1 , wherein the second command signal includes a gesture command signal or a cursor movement command signal. 
     
     
         6 . The input system of  claim 5 , wherein the gesture command signal includes an upward command signal, a downward command signal, a leftward command signal, a rightward command signal, a clockwise command signal, a counterclockwise command signal, a push forward command signal, a pull backward command signal, or a waving-hand command signal. 
     
     
         7 . The input system of  claim 5 , wherein the cursor movement command signal includes a cursor motion signal or an object motion signal. 
     
     
         8 . The input system of  claim 1 , wherein the input system is for transmitting the first command signal and the second command signal to an electronic device in serial or parallel manner so that the electronic device generates a corresponding action. 
     
     
         9 . The input system of  claim 8 , wherein the action includes a copy, paste, zoom-in, zoom-out or object dragging action. 
     
     
         10 . The input system of  claim 1 , wherein the first light beam and the second light beam are invisible light beams. 
     
     
         11 . The input system of  claim 10 , wherein the first light beam and the second light beam have a same wavelength range. 
     
     
         12 . The input system of  claim 11 , wherein the first sensible range and the second sensible range do not overlap with each other. 
     
     
         13 . The input system of  claim 10 , wherein the first light beam and the second light beam have different wavelength ranges. 
     
     
         14 . The input system of  claim 13 , wherein the first sensible range and the second sensible range partially overlap with each other. 
     
     
         15 . An input system, comprising:
 a light emitting device for emitting a light beam;   a first gesture detection unit having a first sensible range, wherein the first gesture detection unit includes:
 a first light sensing device for receiving the light beam which is reflected by a first motion trajectory generated by a user and outputting a first image signal accordingly; 
 a first processing unit for processing the first image signal and outputting a first command signal accordingly; 
   a second gesture detection unit having a second sensible range, wherein the second gesture detection unit includes:
 a second light sensing device for receiving the light beam which is reflected by a second motion trajectory generated by the user and outputting a second image signal accordingly; and 
 a second processing unit for processing the second image signal and outputting a second command signal accordingly. 
   
     
     
         16 . The input system of  claim 15 , wherein the first command signal includes a gesture command signal or a cursor movement command signal. 
     
     
         17 . The input system of  claim 16 , wherein the gesture command signal includes an upward command signal, a downward command signal, a leftward command signal, a rightward command signal, a clockwise command signal, a counterclockwise command signal, a push forward command signal, a pull backward command signal, or a waving-hand command signal. 
     
     
         18 . The input system of  claim 16 , wherein the cursor movement command signal includes a cursor motion signal or an object motion signal. 
     
     
         19 . The input system of  claim 15 , wherein the second command signal includes a gesture command signal or a cursor movement command signal. 
     
     
         20 . The input system of  claim 19 , wherein the gesture command signal includes an upward command signal, a downward command signal, a leftward command signal, a rightward command signal, a clockwise command signal, a counterclockwise command signal, a push forward command signal, a pull backward command signal, or a waving-hand command signal.