| 摘要 |
PROBLEM TO BE SOLVED: To provide a portable telephone, which enables the user to switch to a sleep mode for preventing the emission of waves and a normal reception and transmission mode, so as to prevent its malfunctions due to wave noise emitted from the installed place or its vicinity of precision electronic apparatus, such as electronics, robots, etc., used for medical treatment, etc., concerned with human life. SOLUTION: This portable telephone, which is equipped with a portable telephone function part 11 and a sleep control part 12, has the function of setting itself to a sleep mode for stopping its receiving and transmitting function and the function of cancelling the sleep mode. When a sleep mode setting signal, is received, it has the function of setting itself to the sleep mode. |
