Patent ID: 6726626
Filing Date: 2004-04-27
Classification: B06B

Abstract:
A method for tuning an electro-acoustic transducer circuit comprising:identifying an electro-acoustic transducer circuit including a transmit signal path, a receive signal path and a capacitive electrostatic transducer, the capacitive electrostatic transducer having a negative reactive characteristic and an operating center frequency, wherein the transmit signal path and the receive signal path are electrically coupled to the capacitive electrostatic transducer; inserting a balancing reactance into the transmit signal path to assist in countering the negative reactive characteristic at the operating center frequency during a transmit mode of the electro-acoustic transducer circuit; and isolating the balancing reactance from the receive signal path and the capacitive electrostatic transducer during a receive mode of the electro-acoustic transducer circuit.