초록 ▼

In an interlocked relation to the removal of the portable unit, the stand-by state of the base unit is turned off. It is thus possible to avoid wasteful battery power consumption on the base unit side. Using a hollow cylindrical antenna, the inner cylindrical space thereof is used as a battery inser

In an interlocked relation to the removal of the portable unit, the stand-by state of the base unit is turned off. It is thus possible to avoid wasteful battery power consumption on the base unit side. Using a hollow cylindrical antenna, the inner cylindrical space thereof is used as a battery insertion space, thus dispensing with an independent battery mounting space. Very great space saving is thus attainable particularly in a mobile satellite communication unit, which requires high power and large size battery power supply.

대표청구항 ▼

[ What is claimed is:] [1.]1. A dual mobile satellite communication unit providing a mobile terrestrial communication unit function in addition to a mobile satellite communication unit function, comprising:a base unit not including at least a key operating section, a display section and a speech tra

[ What is claimed is:] [1.]1. A dual mobile satellite communication unit providing a mobile terrestrial communication unit function in addition to a mobile satellite communication unit function, comprising:a base unit not including at least a key operating section, a display section and a speech transducer section having a microphone and a loudspeaker and capable of providing the mobile satellite communication unit function; anda terrestrial communication portable unit including a key operating section, a display section and a speech transducer section having a microphone a loudspeaker and providing a pertinent mobile terrestrial communication unit function;wherein recesses and projections are provided as mechanical couplers on the base unit and the portable unit for mechanically coupling the base unit and the portable unit to each other, and electric connectors are provided on the base unit and the portable unit for electrically connecting the key operation section, the display section and the speech transducer section having the microphone and the loudspeaker on the side of the terrestrial communication portable unit and a mobile satellite communication unit function section on the side of the base unit to one another when the base unit and the portable unit are mechanically coupled to one another.