Laser gun and shooting system for the same

Abstract

A shooting system includes a laser gun and a target apparatus. The target apparatus includes a target-side communication unit wirelessly connected with the laser gun to output a permission signal to the laser gun, a target, a light receiving unit optically connected to the target to receive a laser beam bullet, and a detecting unit electrically connected to the light receiving unit, to detect an shot position of the laser beam bullet. The laser gun includes a gun-side communication unit which receives the permission signal transmitted from the target-side communication unit, and a gun section which outputs the laser beam bullet based on the permission signal.

1 . A shooting system comprising: 
 a laser gun; and    a target apparatus,    wherein said target apparatus comprises:    a target-side communication unit wirelessly connected with said laser gun to output a permission signal to said laser gun;    a target;    a light receiving unit optically connected to said target to receive a laser beam bullet; and    a detecting unit electrically connected to said light receiving unit, to detect an shot position of said laser beam bullet,    said laser gun comprises:    a gun-side communication unit which receives said permission signal transmitted from said target-side communication unit; and    a gun section which outputs said laser beam bullet based on said permission signal.    
   
   
       2 . The shooting system according to  claim 1 , wherein said laser gun further comprises: 
 a trigger; and    a trigger signal generating circuit which generates a trigger signal in response to an operation of said trigger,    wherein said gun section outputs said laser beam bullet based on said permission signal in response to said trigger signal.    
   
   
       3 . The shooting system according to  claim 1 , wherein said permission signal has a directivity to said laser gun.  
   
   
       4 . The shooting system according to  claim 3 , wherein said target-side communication unit comprises: 
 a light emitting device which outputs an optical conical beam; and    a slit which gives said transmission signal the directivity.    
   
   
       5 . The shooting system according to  claim 1 , wherein said laser beam bullet includes a bullet timing signal used for detecting said shot position of said laser beam bullet, and a laser beam bullet distinguishing signal used for distinguishing said laser beam bullet.  
   
   
       6 . The shooting system according to  claim 1 , wherein said permission signal includes a condition for the output of said laser beam bullet.  
   
   
       7 . The shooting system according to  claim 6 , wherein the condition is a pulse width of said permission signal.  
   
   
       8 . The shooting system according to  claim 1 , wherein said laser beam bullet comprises a plurality of elementary bullets, 
 each of said plurality of elementary bullets includes a bullet timing signal used for detecting said shot position of said laser beam bullet, and a laser beam bullet distinguishing signal used for distinguishing said laser beam bullet, and    said bullet distinguishing signal for a first one of said plurality of elementary bullets is subsequent to said bullet timing signal for said first elementary bullet.    
   
   
       9 . The shooting system according to  claim 8 , wherein said first bullet distinguishing signal as said bullet distinguishing signal for said first elementary bullet includes a first in-bullet signal associated with said first elementary bullet and a first common signal indicating that said first elementary bullet belongs to said laser beam bullet, 
 said second bullet distinguishing signal as said bullet distinguishing signal for said second elementary bullet includes a second in-bullet signal associated with said second elementary bullet and a second common signal indicating that said second elementary bullet belongs to said laser beam bullet, and    said first common signal is equal to said second common signal.    
   
   
       10 . The shooting system according to  claim 9 , wherein each of said first in-bullet signal and said second in-bullet signal is expressed in a same first number of bits, and 
 each of said first common signal and said second common signal is expressed in a same second number of bits.    
   
   
       11 . The shooting system according to  claim 10 , wherein the first number of bits is 2 and the second number of bits is 6.  
   
   
       12 . The shooting system according to  claim 9 , wherein a score for said laser beam bullet is calculated as one score with respect to said first and second common signals, based on at least one of said first laser beam bullet distinguishing signal and said second laser beam bullet distinguishing signal.  
   
   
       13 . The shooting system according to  claim 1 , wherein said laser beam bullet comprises a plurality of elementary bullets, and 
 each of said plurality of elementary bullets includes a shot position signal used for detecting a shot position of said corresponding elementary bullet, an in-bullet distinguishing signal associated with said corresponding elementary bullet, and a common signal indicating that said corresponding elementary bullet belongs to said laser beam bullet.    
   
   
       14 . The shooting system according to  claim 13 , wherein a score is calculated as one score with respect to said common signals, based on said plurality of in-bullet distinguishing signals.  
   
   
       15 . The shooting system according to  claim 13 , wherein a score is calculated by averaging scores based on said plurality of in-bullet distinguishing signals.  
   
   
       16 . The shooting system according to  claim 13 , wherein tracing is performed over shot positions of said plurality of shot position signals.  
   
   
       17 . The shooting system according to  claim 13 , wherein a score is obtained based on a relative positional relationship between shot positions of said plurality of shot position signals.  
   
   
       18 . The shooting system according to  claim 1 , wherein said target apparatus further comprises a lamp which notifies a shooter of transmission of said permission signal.  
   
   
       19 . The shooting system according to  claim 13 , wherein said laser gun further comprises a selection switch by which selection is made between modes, and said modes includes a real shooting mode for emitting said laser beam bullet, and a test shooting mode for emitting an optical signal different from said laser beam bullet.  
   
   
       20 . The shooting system according to  claim 19 , wherein said different optical signal of said laser beam bullet is a signal obtained by modifying said common signal.  
   
   
       21 . The shooting system according to  claim 19 , wherein said different optical signal of said laser beam bullet is a signal obtained by modifying corresponding ones of said plurality of in-bullet signals.  
   
   
       22 . A signal processing method comprising the steps of: 
 (a) transmitting a permission signal wirelessly from a target apparatus to a laser gun;    (b) receiving said permission signal by said laser gun;    (c) emitting a laser beam bullet from said laser gun in response to the reception of said permission signal; and    d) receiving said laser beam bullet by said target apparatus such that a shot position of said laser beam bullet can be detected.    
   
   
       23 . The signal processing method according to  claim 22 , wherein said (c) emitting step comprises the step of adding a bullet timing signal to said laser beam bullet.  
   
   
       24 . The signal processing method according to  claim 23 , further comprising the step of (e) detecting the shot position of said laser beam bullet in said target apparatus based on the bullet timing signal.  
   
   
       25 . The signal processing method according to  claim 24 , wherein said (c) emitting step further comprises the step of adding a laser beam bullet distinguishing signal used for distinguishing said laser beam bullet from other laser beam bullets, to said laser beam bullet.  
   
   
       26 . The signal processing method according to  claim 25 , wherein said laser beam bullet distinguishing signal is generated by a shooter's action of operation a trigger.  
   
   
       27 . The signal processing method according to  claim 26 , wherein said laser beam bullet comprises a plurality of elementary bullets, and 
 said laser beam bullet distinguishing signal includes a plurality of bullet distinguishing signals which are outputted in series subsequent to said bullet timing signal, and which correspond to said plurality of elementary bullets.    
   
   
       28 . The signal processing method according to  claim 27 , wherein each of said plurality of bullet distinguishing signals includes an elementary bullet number signal indicating a corresponding one of said  5  plurality of elementary bullets, and a common signal indicating that said corresponding elementary bullet belongs to said laser beam bullet.  
   
   
       29 . The signal processing method according to  claim 28 , further comprising the step of (f) averaging scores of said plurality of elementary bullets of said laser beam bullet.  
   
   
       30 . The signal processing method according to  claim 22 , wherein said (a) transmitting step comprises the step of transmitting said permission signal to said laser gun in a directivity.  
   
   
       31 . The signal processing method according to  claim 22 , further comprising the step of (g) adjusting a position of said target apparatus which comprises: 
 a target which has mechanical coordinates (x, y) of an irradiation point; and    a two-dimensional light receiving unit which receives said laser beam bullet at said irradiation point and outputs electric coordinates (x′, y′).    
   
   
       32 . The signal processing method according to  claim 31 , wherein said (g) adjusting step comprises the step of (h) adjusting said electric coordinates (x′, y′), based on the mechanical coordinates (x, y).  
   
   
       33 . The signal processing method according to  claim 32 , wherein said (h) adjusting step comprises the step of (i) adjusting relative positions between said target and said two-dimensional light receiving unit, such that said electric coordinates (x′, y′) coincide with mechanical coordinates (0, 0) of a center point of said target.  
   
   
       34 . The signal processing method according to  claim 32 , wherein said (h) adjusting step comprises the steps of: 
 (j) changing a position of said irradiation point; and    (k) mathematically adjusting said electric coordinates (x′, y′), such that said electric coordinates (x′, y′) coincide with said mechanical coordinates (x, y) of the changed position of said irradiation point.    
   
   
       35 . The signal processing method according to  claim 32 , wherein said (j) changing step and said (k) mathematically adjusting step are executed independently in a plurality of regions on a coordinate system of said mechanical coordinates (x, y).