| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a portable telephone set which can be easily found at an incoming call in the case of being placed on a desk or a floor etc. <P>SOLUTION: In the portable telephone set, an image display surface of a display 5 is arranged on the front surface of a casing 1, while a camera 7 is arranged on the back surface of the casing 1. The portable telephone set includes a proximity sensor 8, an acceleration sensor 16 and a control circuit 12. The control circuit 12 includes: means for detecting that the casing 1 is placed on an object on the basis of the output value of the proximity sensor 8 and the output value of the acceleration sensor 16; means for executing color conversion processing of converting the colors of respective pixels to complementary colors according to a prescribed conversion rule for image signals obtained from the camera 7 before it is detected that the casing 1 is placed on the object; and means for outputting color converted image signals to the display 5 and displaying color converted images on the image display surface of the display 5 when there is an incoming call after it is detected that the casing 1 is placed on the object. <P>COPYRIGHT: (C)2012,JPO&INPIT |
