| 摘要 |
PROBLEM TO BE SOLVED: To provide a wireless headphone apparatus without the need of a battery. SOLUTION: A coil 10 drives a speaker and generates sound on the basis of input sound signals. A power generation part 20 takes out power to be supplied to respective parts of the wireless headphone apparatus from high frequency signals guided to the coil 10 when the coil 10 receives radio waves. A sound signal generation part 30 generates sound signals from the high frequency signals guided to the coil 10 when the coil 10 receives the radio waves and supplies them to the coil 10. COPYRIGHT: (C)2009,JPO&INPIT
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