Title:
音電気変換装置
Document Type and Number:
Japanese Patent JP7305162
Kind Code:
B2
Abstract:
An acoustic-electric transducer 1 includes a connection part 13 that has a first connection point 131 able to contact a first contact A in a terminal 2 for processing the electrical signal, and a second connection point 132 able to contact a second contact B having a potential lower than the potential of the first contact A, a microphone 101 that transduces a sound inputted from an external source into an electrical signal, a changeover switch 11 that switches between a non-mute state where the electrical signal is outputted to the terminal 2 and a mute state where the electrical signal is not outputted to the terminal 2, and a current control circuit 14 that makes a current flow between the first contact A and the second contact B until a predetermined time passes from the time when the connection part 13 is connected to the terminal 2 and reduces the current flowing between the first contact A and the second contact B after the predetermined time passes, the current control circuit 14 being provided between the changeover switch 11 and the connection part 13.
Inventors:
Hirokazu Irii
Ito Mika
Cosmo Miyauchi
Yutaka Akino
Ito Mika
Cosmo Miyauchi
Yutaka Akino
Application Number:
JP2019113442A
Publication Date:
July 10, 2023
Filing Date:
June 19, 2019
Export Citation:
Assignee:
Audio Technica Co., Ltd.
International Classes:
H04R3/00; H04R1/04; H04R1/06
Domestic Patent References:
| JP7058811A | ||||
| JP2020141361A |
Foreign References:
| US6681020 | ||||
| US6292560 | ||||
| US6751316 |
Attorney, Agent or Firm:
Michihiro Izumi
Kyosuke Kutsune
Kensuke Terakawa
Kyosuke Kutsune
Kensuke Terakawa