Audio-technica Corporation

Kosumo Miyauchi

Koichi Irii

Hiroshi Akino

Mika Yoshino

Mika Ito

Yutaka Akino

An acoustic-electric transducer includes a connection part that has a first connection point able to contact a first contact in a terminal for processing the electrical signal, and a second connection point able to contact a second contact having a potential lower than the potential of the first contact, a microphone that transduces a sound inputted from an external source into an electrical signal, a changeover switch that switches between a non-mute state where the electrical signal is outputted to the terminal and a mute state where the electrical signal is not outputted to the terminal, and a current control circuit that makes a current flow between the first contact and the second contact until a predetermined time passes from the time when the connection part is connected to the terminal and reduces the current flowing between the first contact and the second contact after the predetermined time passes, the current control circuit being provided between the changeover switch and the connection part.

Acoustic-electric transducer

A headset includes: a microphone, a first transmission line that transmits a first electrical signal generated by the microphone to an external device; an operation switch that receives an operation for switching between (i) a non-mute state in which the first electrical signal is transmitted to the external device and (ii) a mute state in which the first electrical signal is not transmitted to the external device; an electronic switch that switches between (i) a conductive state in which the first electrical signal is transmitted and (ii) a non-conductive state in which the first electrical signal is not transmitted, on the basis of a control voltage which changes according to the state of the operation switch; and a voltage generator that generates the control voltage.

Growing community of inventors

Tokyo, Japan

Kosumo Miyauchi