| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a portable game machine which uses existing radio equipment without construction of a new network system and allows a user to enjoy a wide variety of games at a low cost. SOLUTION: An electric-wave receiving circuit (22), which is built into a ROM cartridge (20), receives shortwave broadcasting via an antenna (21). A reception state detecting circuit (23) detects a state of reception of an electric wave, and outputs a signal, corresponding to a Signal Interference Noise Propagadion-disturbance Overallmerit (SINPO) code, to a CPU (14). The CPU (14) selects an image to be displayed as a game screen, in accordance with a difference between a predetermined electric-wave reception condition and the SINPO code, and outputs the selected image to a liquid crystal display (11).</p> |
