Pioneer Electronic Corporation

Yuji Fukata

Hideo Yamamoto

Hiroyuki Komata

Shigeru Takenaka

Tomomi Watanabe

Kenji Suehiro

Toshio Takagi

Shiro Kato

Yoichi Satoh

Akihiro Suzuki

An on-vehicle audio system reproducing bodily-sensible sounds is devised to rapidly eliminate masking of bodily-acoustic audio sounds caused by vibrations of a running vehicle and generate bodily-sensible sounds without giving an inharmonious feeling to the listener. The system has a low pass filter for extracting only low frequency band components of an input signal, an amplifier for amplifying the output of the low pass filter and delivering the amplified signal, a vibration unit disposed in a seat of the vehicle for converting the amplified signal to mechanical vibrations. To eliminate the masking, the system is provided with a vibration sensor for generating a vibration signal of a magnitude in accordance with vibrations of the vehicle, and a level adjusting unit for adjusting the level of the input signal in accordance with an average level of the vibration signal.

On-vehicle audio system reproducing bodily-sensible sounds

A music search device for a tape containing a number of pieces of music. If the search begins within a fixed period since the beginning of the currently played piece, the tape jumps back to the beginning of the preceding piece. If the search begins after the fixed period, the tape jumps back to the beginning of the current piece.

Music searching device with time dependent search function

Growing community of inventors

Kawagoe, Japan

Yuji Fukata