Display control for score and impact position in target device

Abstract

A target device is used in gun shooting, Japanese archery, archery, etc. The target device has a light-emitting element group of LEDs, for example, disposed around a target plate. The target device also has an impact position detector, a score calculator, and a light-emitting element energizing unit. When an impact position on the target plate is detected by the impact position detector, the score calculator calculates a score based on the detected impact position. The light-emitting element energizing unit selectively energizes the LEDs of the light-emitting element group depending on the calculated score and/or the detected impact position.

What is claimed is:  
     
         1 . A target device comprising: 
 a target plate;    a light-emitting element group disposed near said target plate;    impact position detecting means for detecting an impact position on said target plate and/or score calculating means for calculating a score based on the impact position detected by said impact position detecting means; and    light-emitting element group energizing means for changing energizing patterns of said light-emitting element group depending on the calculated score and/or the detected impact position.    
     
     
         2 . A target device according to  claim 1 , wherein said light-emitting element group comprises a plurality of light-emitting elements disposed at substantially equally spaced intervals around said target plate.  
     
     
         3 . A target device according to  claim 2 , wherein said light-emitting elements are positioned such that angles formed between straight lines extending from a center of said target plate to said light-emitting elements, respectively, are predetermined angles.  
     
     
         4 . A target device according to  claim 1 , wherein said light-emitting element group comprises a plurality of light-emitting elements, said light-emitting element group energizing means energizing one of said light-emitting elements which is closest to the impact position on said target plate.  
     
     
         5 . A target device according to  claim 1 , wherein said light-emitting element group comprises a plurality of light-emitting elements, said light-emitting element group energizing means comprising means for energizing one of said light-emitting elements such that an angle formed between a straight line extending from a center of said target plate to said one of the light-emitting elements and a straight line extending from said center of said target plate to said impact position on said target plate is minimum.  
     
     
         6 . A target device according to  claim 1 , wherein said light-emitting element group comprises a plurality of light-emitting elements, said light-emitting element group energizing means comprising means for determining a first light-emitting element, of said light-emitting elements, such that an angle formed between a straight line extending from a center of said target plate to said first light-emitting element and a straight line extending from the center of said target plate to said impact position on said target plate is a smallest first angle, and a second light-emitting element, of said light-emitting elements, such that an angle formed between a straight line extending from the center of said target plate to said second light-emitting element and the straight line extending from the center of said target plate to said impact position on said target plate is a next smallest second angle, energizing said first light-emitting element, and energizing said second light-emitting element if the difference between said second angle and said first angle is at most a predetermined angle.  
     
     
         7 . A target device according to  claim 1 , wherein said light-emitting element group comprises a plurality of light-emitting elements, said light-emitting element group energizing means comprising means for changing light-emitting elements to be energized depending on the score calculated by said score calculating means.  
     
     
         8 . A target device according to  claim 7 , wherein said light-emitting element group comprises a plurality of light-emitting elements, said light-emitting element group energizing means comprising means for changing combinations of light-emitting elements to be energized depending on the score calculated by said score calculating means.  
     
     
         9 . A target device according to  claim 1 , wherein said light-emitting element group comprises a first light-emitting element group energizable in energizing patterns which vary depending on the score calculated by said score calculating means, and a second light-emitting element group energizable in energizing patterns which vary depending on the impact position detected by said impact position detecting means.  
     
     
         10 . A target device according to  claim 9 , wherein said first light-emitting element group and said second light-emitting element group are energizable to emit light in different colors, respectively.  
     
     
         11 . A target device according to  claim 1 , wherein said light-emitting element group energizing means comprises means for energizing said light-emitting element group to display the score and the impact position in a time-division manner.  
     
     
         12 . A target device according to  claim 11 , wherein said light-emitting element group energizing means comprises means for energizing said light-emitting element group to display the score and the impact position alternately in an intermittent fashion.  
     
     
         13 . A target device according to  claim 1 , wherein said light-emitting element group comprises a plurality of light-emitting elements, each of said light-emitting elements comprising a bicolor light-emitting diode for emitting light in two colors.  
     
     
         14 . A target device according to  claim 13 , wherein said light-emitting element group energizing means comprises means for energizing said light-emitting elements display the score and the impact position in different colors.  
     
     
         15 . A target device according to  claim 1 , wherein said light-emitting element group comprises a plurality of light-emitting elements, at least one of said light-emitting elements being operable as a ready lamp for indicating that a shooter can shoot at the target plate.  
     
     
         16 . A target device according to  claim 15 , wherein said at least one of said light-emitting elements which is operable as the ready lamp is positioned below said target plate.  
     
     
         17 . A target device according to  claim 1 , wherein said light-emitting element group comprises a plurality of light-emitting elements, at least one of said light-emitting elements being operable as a busy lamp for indicating that a shooter cannot shoot at the target plate.  
     
     
         18 . A target device according to  claim 17 , wherein said at least one of said light-emitting elements which is operable as the busy lamp is positioned above said target plate.  
     
     
         19 . A target device according to  claim 1 , further comprising: 
 a switch for setting a type of the target plate which is mounted in place.    
     
     
         20 . A target device according to  claim 19 , wherein said score calculating means comprises means for changing an equation for calculating the score from said impact position, depending on the type of the target plate which is set by said switch.  
     
     
         21 . A target device according to  claim 1 , further comprising: 
 detecting means for automatically detecting a type of the target plate which is mounted in place.    
     
     
         22 . A target device according to  claim 21 , wherein said score calculating means comprises means for changing an equation for calculating the score from said impact position, depending on the type of the target plate which is automatically detected by said detecting means.  
     
     
         23 . A target device according to  claim 21 , wherein said detecting means comprises means for detecting the type of the target plate which is mounted in place by reading the resistance of a resistor embedded in the target plate which is mounted in place.  
     
     
         24 . A target device according to  claim 21 , wherein said detecting means comprises means for detecting the type of the target plate which is mounted in place by reading information stored in an IC chip embedded in the target plate which is mounted in place.  
     
     
         25 . A target device according to  claim 21 , wherein said detecting means comprises means for detecting the type of the target plate which is mounted in place by reading magnetic information embedded in the target plate which is mounted in place.  
     
     
         26 . A target device according to  claim 21 , wherein said detecting means comprises means for detecting the type of the target plate which is mounted in place by reading a pattern of slits disposed in the target plate which is mounted in place.  
     
     
         27 . A target device according to  claim 1 , wherein said light-emitting element group is energizable in energizing patterns which are visually recognizable as a character and/or a numeral representing said score and/or said impact position.  
     
     
         28 . A target device according to  claim 1 , further comprising: 
 sound output means for outputting sound information depending on a shot on said target plate and/or said score and/or said impact position.    
     
     
         29 . A target device comprising: 
 a target plate;    impact position detecting means for detecting an impact position on said target plate;    score calculating means for calculating a score based on the impact position detected by said impact position detecting means; and    sound output means for outputting sound information depending on a shot on said target plate and/or said score and/or said impact position.    
     
     
         30 . A target device according to  claim 29 , further comprising: 
 a switch for setting a type of the target plate which is mounted in place.    
     
     
         31 . A target device according to  claim 29 , further comprising: 
 detecting means for automatically detecting a type of the target plate which is mounted in place.