Radio communication terminal, radio communication terminal housing case, radio communication terminal sheet and radio communication terminal display device

Abstract

A radio communication terminal of one example of the present invention is a radio communication terminal provided with an electronic device shielded to prevent electromagnetic interference, in a housing, and comprises an integrated circuit, a first resonant circuit for making non-contact communication with an external device, and a second resonant circuit resonating with the first resonant circuit.

1 . A radio communication terminal provided with an electronic device shielded to prevent electromagnetic interference, in a housing, comprising: 
 an integrated circuit;    a first resonant circuit connected to the integrated circuit to make non-contact communication with an external device; and    a second resonant circuit resonating with the first resonant circuit.    
   
   
       2 . The radio communication terminal according to  claim 1 , wherein 
 a loop area formed by a loop coil of the second resonant circuit is larger than that formed by the first loop coil.    
   
   
       3 . The radio communication terminal according to  claim 1 , wherein 
 the loop coil of the second resonant circuit is arranged at an outer circumference of a loop formed by the loop coil of the first resonant circuit.    
   
   
       4 . The radio communication terminal according to  claim 1 , wherein 
 the loop coil of the second resonant circuit is arranged along with an outer circumference of the housing.    
   
   
       5 . The radio communication terminal according to  claim 1  wherein 
 the loop coil of the first resonant circuit is arranged on one side of the radio communication terminal with interposition of a shield member shielding the electronic device, and    the loop coil of the second resonant circuit is arranged on the other side of the radio communication terminal.    
   
   
       6 . The radio communication terminal according to  claim 1 , wherein 
 the housing is composed of two units connected with each other through a movable section, and    the loop coils of the first and the second resonant circuits are arranged at one unit among the two units.    
   
   
       7 . The radio communication terminal according to  claim 1 , wherein 
 the housing is composed of two units connected with each other through a movable section,    the loop coil of the first resonant circuit is arranged at one unit among the two units, and    the loop coil of the second resonant circuit is arranged at the other unit among the two units.    
   
   
       8 . The radio communication terminal according to  claim 7 , wherein 
 the second resonant circuit has a switch for opening and closing the second resonant circuit by linking with a movement of the movable section.    
   
   
       9 . A radio communication terminal housing case to house a radio communication terminal provided with a first resonant circuit connected to an integrated circuit to make non-contact communication with an external device, comprising: 
 a second resonant circuit resonating with the first resonant circuit.    
   
   
       10 . A radio communication terminal sheet can be mounted to a radio communication terminal provided with a first resonant circuit connected to an integrated circuit to make non-contact communication with an external device, comprising: 
 a second resonant circuit resonating with the first resonant circuit.    
   
   
       11 . A radio communication terminal display device can be mounted to a radio communication terminal provided with a first resonant circuit connected to an integrated circuit to make non-contact communication with an external device, comprising: 
 a second resonant circuit resonating with the first resonant circuit; and    light emitting means emitting light by a current induced by the second resonant circuit.    
   
   
       12 . The radio communication terminal according to  claim 1 , wherein 
 a loop coil of the second resonant circuit is arranged so that a center of the loop coil of the second resonant circuit gets closer to a center of a loop coil of the first resonant circuit.    
   
   
       13 . The radio communication terminal according to  claim 1 , wherein 
 a loop coil of the second resonant circuit is arranged so that a loop area formed by the second resonant circuit is larger than that of a shielding member incorporated in the radio communication terminal.