Handset microphone
AssigneeKabushiki Kaisha Audio-Technica
InventorHiroshi Akino
Life of this patent
Estimating the term…
Abstract
A handset microphone includes: a microphone unit, a first switch for turning on or off the output from the microphone unit, and a second switch for enabling or disabling the output from the microphone unit; the first and second switches have contacts operated by a magnetic field; the contact of the first switch is closed and short-circuits the output terminals while the first switch is being affected by the magnetic field; and the contact of the second switch is opened and disconnects one of the output terminals while the second switch is being affected by the magnetic field.
Claims7
A handset microphone comprising:
- a microphone unit;
- a first switch connected in parallel to output terminals of the microphone unit;
- and
- a second switch which is a transfer contact switch and is in contact with a normally open contact and a normally closed contact for opening and closing a circuit of the output terminals and output terminals of the handset microphone, wherein
- the first and second switches have contacts opened or closed by a magnetic field;
- the contact of the first switch is closed and short-circuits the output terminals while the first switch is being affected by the magnetic field;
- and
- the contacts of the second switch is in contact with the normally closed contact and connects one of the output terminals of the microphone unit to one of the output terminals of the handset microphone through the second switch while the second switch is being not affected by any magnetic field, and is in contact with the normally open contact and disconnects the one of the output terminals of the microphone unit and the one of the output terminals of the handset microphone while the second switch is being affected by the magnetic field.
A handset microphone comprising:
- a microphone unit;
- a first switch connected in parallel to output terminals of the microphone unit;
- a second switch for opening and closing the output terminals, wherein
- the first and second switches have contacts opened or closed by a magnetic field;
- the contact of the first switch is closed and short-circuits the output terminals while the first switch is being affected by the magnetic field;
- and
- the contacts of the second switch is open and disconnects one of the output terminals while the second switch is being affected by the magnetic field;
- and
- a housing accommodating components constituting the handset microphone and a holding member for holding the housing, wherein
- the housing is held on and is detachable from the holding member;
- and
- the holding member includes a magnet applying a magnetic field to the second switch to open the contact of the second switch while the housing is held on the holding member.
Dependencies are inferred from the claim text.