| 摘要 |
<p>PURPOSE:To obtain an inexpensive and handy voice information input device usable as a radio mobile station not requiring replacement of a battery by forming a radio mobile station as a portable radio equipment and charging always the battery associated with the radio equipment by means of a charger. CONSTITUTION:An electric wire 33 connected to a radio mobile station 3 from a microphone 34 and a speaker 35 is a signal line for a transmitter, the microphone 34, a receiver and the speaker 35 of the radio mobile station 3 and used in common as a transmission/reception antenna. The battery 36 is inserted or screwed to the case of the equipment 3. A power cable 44 with a receptacle 43 is connected to the charger 4 and power is supplied from the receptacle 43. The charger 4 converts the power from the receptacle 43 into a voltage charged to the battery 36, the power is fed to the battery 36 via a dummy battery 41 and a charging cable 42 to charge the battery. The battery 36 of the radio mobile station 3 is charged always by the charger 4 and no voltage drop takes place.</p> |
