초록 ▼

A portable telephone device can inform the surroundings unintentionally that a user is talking during speaking on the portable telephone. A speaking state display means 7 that goes on and off during speaking is provided on a back surface side of a body case 1 in relation to an operational surface si

A portable telephone device can inform the surroundings unintentionally that a user is talking during speaking on the portable telephone. A speaking state display means 7 that goes on and off during speaking is provided on a back surface side of a body case 1 in relation to an operational surface side thereof and at a position where it is not covered with a hand when a user holds a portable telephone device. When it is detected that the portable telephone device enters on the speaking state, the speaking state display means 7 is turned on and off by a control means 10 at regular intervals while the brightness is being gently increased or gently decreased, whereby the speaking state display means is turned on and off just like a firefly. Further, the brightness is set to a low degree by which a person near the portable telephone device can identify the brightness, whereby the consuming electric power of a battery is suppressed low and a hindrance to the speaking time of the portable telephone is prevented.

대표청구항 ▼

1. A portable telephone device comprising:a body case; speaking state display means provided with said body case, that blinks on and off during speaking is provided for a body case thereof; and control means that turns on and off said speaking state display means at regular intervals when the portab

1. A portable telephone device comprising:a body case; speaking state display means provided with said body case, that blinks on and off during speaking is provided for a body case thereof; and control means that turns on and off said speaking state display means at regular intervals when the portable telephone device enters on the speaking state; wherein when the portable telephone device enters on the speaking state, said speaking state display means is turned on and off with brightness that a person near the portable telephone device can identify while the brightness is being gently increased at regular intervals or gently decreased, whereby said speaking state display means is turned on and off just like a firefly.