| 摘要 |
The combination of a personal portable communications device having an audio output intended for use when proximate to a user's ear, and a physically separable accessory to amplify the audio output of the communications device for remote reception, the accessory comprising a bending wave panel-form acoustic radiator, and the communications device comprising vibration transducer means for coupling to the radiator to drive bending wave energy into the radiator to produce an acoustic output therefrom. |
