| 摘要 |
PURPOSE: An electromagnetic wave signal lamp is provided to reduce electromagnetic wave damage, so that a subscriber can identify a call-connected status with eyes by watching a liquid crystal panel of a cellular phone, when the subscriber calls in a noisy area or calls other person. CONSTITUTION: An electromagnetic wave signal lamp turns red when a subscriber calls other person and a telephone line of the person is busy. When a signal is transmitted, the signal lamp turns yellow. When the person picks up the phone, the signal lamp turns blue. If the subscriber wants a memory, light turns in an arrow. Characters and colors are displayed in a liquid crystal screen. Information such as news, weather, stocks and advertisements are displayed on the screen in a call stand-by time. Ancient proverbs and humor are inserted in the call stand-by time.
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