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US 5,659,888 AGranted
Radio telecommunication apparatus
AssigneeKabushiki Kaisha Toshiba
InventorsSyozi Kato, Noboru Koike
Life of this patent
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AssigneeKabushiki Kaisha Toshiba
InventorsSyozi Kato, Noboru Koike
Estimating the term…
A radio telephone device (1) is provided with a reed switch (13) arranged between a radio section (12) and a rod antenna (15) in a telephone set main body (10), which connects the radio section (12) and the rod antenna (15) with each other when the telephone set main body (10) is separated from a car kit (20). The car kit is provided with a magnet (27) which magnetically energizes the reed switch (13) when the telephone set main body (10) is placed on the car kit (20) so that the reed switch (13) is turned into a mode where the radio section (12) and an external antenna (26) are connected to each other. Hence it is possible to execute switching the antenna line between the rod antenna (15) of the telephone set main body (10) and the external antenna (26) of the car kit (20) without inviting any increase in the consumption of electric current and without making the circuits more complicated.
A radio telecommunication apparatus including a mobile unit having a radio section and a first antenna, and an adapter having a second antenna and being provided with the mobile unit thereon, wherein when the mobile unit is separated from the adapter, the first antenna is used for communication while when the mobile unit is attached to the adapter, the second antenna is used for communication;
A radio telecommunication apparatus including a mobile unit having a radio section and a first antenna, and an adapter having a second antenna and being provided with the mobile unit, comprising:
A radio telecommunication apparatus including a mobile unit having a radio section and a first antenna, and an adapter having a second antenna and being provided with the mobile unit, comprising:
Dependencies are inferred from the claim text.