发明名称 PORTABLE VIEWER SYSTEM AND HEADPHONE DEVICE
摘要 PROBLEM TO BE SOLVED: To provide a portable viewer system which makes it possible to use at least a headphone device and a viewer device without connecting the both by a wire. SOLUTION: A main body device 3 supplies an audio signal and a video signal to the viewer device 1 through an AV cable 9. The viewer device 1 displays the supplied video signal on a liquid crystal monitor 8 and transmits infrared rays modulated with the audio signal from an infrared-ray emission part 7 to an infrared-ray reception part 4 of the headphone device 2. The headphone device 2 demodulates the received infrared rays into the audio signal and outputs it from its internal speaker.
申请公布号 JPH10200831(A) 申请公布日期 1998.07.31
申请号 JP19970011983 申请日期 1997.01.07
申请人 SONY CORP 发明人 WATANABE KOICHIRO
分类号 G01H9/00;H04B10/112;H04B10/516;H04B10/61;H04N5/64;H04R1/10 主分类号 G01H9/00
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