| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce the number of operation keys or buttons without reducing the number of functions to be loaded and to improve operability even when an apparatus is miniaturized. <P>SOLUTION: In a portable telephone set 1 applicable to the information processing apparatus, an illuminance sensor 20 detects the state of the portable telephone set 1 and generates detection signals, and a main control part 31 judges whether or not the generated detection signal is larger than a prescribed reference value set beforehand, and on the basis of a judged result, refers to a table wherein the operation key 14 and its function are made to correspond to each other beforehand and stored, and allocates the function of a prescribed operation to the operation key 14. <P>COPYRIGHT: (C)2008,JPO&INPIT |
