18967164. ELECTROACOUSTIC TRANSDUCER (FUJIFILM Corporation)
Contents
ELECTROACOUSTIC TRANSDUCER
Organization Name
Inventor(s)
Tetsu Miyoshi of Minamiashigara-shi JP
ELECTROACOUSTIC TRANSDUCER
This abstract first appeared for US patent application 18967164 titled 'ELECTROACOUSTIC TRANSDUCER
Original Abstract Submitted
Provided is an electroacoustic transducer in which a decrease in sound pressure in a high sound band is suppressed and power consumption can be reduced, in an electroacoustic transducer in which a plurality of vibrators are arranged on a vibration plate. The electroacoustic transducer includes a vibration plate and a vibrator group consisting of a plurality of piezoelectric vibrators arranged on one surface of the vibration plate, in which the plurality of piezoelectric vibrators each belong to any one of a first group to an n-th group, an upper limit frequency of a frequency band of an input signal input to the piezoelectric vibrator is different for each group, and in a case where upper limit frequencies for each group are denoted by fto f, the upper limit frequencies gradually decrease from the upper limit frequency fin the first group to the upper limit frequency fin the n-th group.
