To provide a bed apparatus for preventing an unpleasant vibration from being generated when the bed apparatus is vibrated in response to sound signals to be output from various music reproducers.
The bed apparatus 21 includes: an amplitude restricting device 2 for directly or indirectly inputting the sound signals from the various music reproducers MP1, MP2, MP3, and outputting a signal with the amplitude level of the sound signal restricted therein; an amplitude level adjusting device 3 connected to the amplitude restricting device 2 so as to vary the amplitude restriction level of the amplitude restricting device 2; an amplifying circuit 4 connected to the output side of the amplitude restricting device 2, amplifying the signal, which is restricted in amplitude and output by the amplitude restricting device 2, and outputting the signal; and a vibrator 5 connected to the output side of the amplifying circuit 4 and vibrated in response to the signal to be output by the amplifier circuit 4. The vibration is generated within a comfortable level range in response to the sound signals to be output by the various music reproducers MP1, etc., with different sound signal amplitude levels.
ANDO YOSHIKI
YONEDA ETSUHISA
ANDO SHINJI
UCHIDA YUHO
| JP2007190322A | 2007-08-02 | |||
| JPH0298368A | 1990-04-10 | |||
| JP2008160293A | 2008-07-10 | |||
| JP2007190322A | 2007-08-02 |
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