Vibro-acoustic system

Abstract

The present invention is directed to providing a vibro-acoustic system that can be used for an extended period of time by reducing the uncomfortable feeling or sensation of pressure that a user may experience during use. The vibro-acoustic system comprises: a seat having a seatback and a seat proper; a band dividing circuit which produces a first sound signal and a second sound signal by dividing an input sound signal into frequency bands; a first vibrating device which vibrates in accordance with the first sound signal, and which is mounted in the seatback so that the direction of vibration of the first vibrating device is parallel or substantially parallel to the occupant-side surface of the seatback; and a second vibrating device which vibrates In accordance with the second sound signal, and which is mounted in the seat proper so that the direction of vibration of the second vibrating device is parallel or substantially parallel to the occupant-side surface of the seat proper.

1 . A vibro-acoustic system comprising:
 a seat having a seatback and a seat proper; and   a vibrating device which vibrates in accordance with an applied sound signal,   wherein said vibrating device is mounted in said seat so that the direction of vibration of said vibrating device is parallel or substantially parallel to an occupant-side surface of said seatback or said seat proper.   
   
   
       2 . The vibro-acoustic system according to  claim 1 , further comprising a source which produces said sound signal. 
   
   
       3 . A vibro-acoustic system comprising:
 a seat having a seatback and a seat proper;   a band dividing circuit which produces a first sound signal and a second sound signal by dividing an input sound signal into frequency bands;   a first vibrating device which vibrates in accordance with said first sound signal, and which is mounted in said seatback so that the direction of vibration of said first vibrating device is parallel or substantially parallel to an occupant-side surface of said seatback; and   a second vibrating device which vibrates in accordance with said second sound signal, and which is mounted in said seat proper so that the direction of vibration of said second vibrating device is parallel or substantially parallel to an occupant-side surface of said seat proper.   
   
   
       4 . The vibro-acoustic system according to  claim 3 , further comprising a source which produces said sound signal. 
   
   
       5 . The vibro-acoustic system according to  claim 3 , wherein said first sound signal is higher in frequency than said second sound signal. 
   
   
       6 . The vibro-acoustic system according to  claim 3 , wherein said seatback and said seat proper are each formed from a polyurethane foam, and said first and second vibrating devices are mounted so as to be embedded in the respective polyurethane foams. 
   
   
       7 . The vibro-acoustic system according to  claim 3 , further comprising a selecting means for selecting which of the first and second vibrating devices is to be caused to vibrate.