초록 ▼

A vibration-detecting-type microphone for detecting voice vibrations by being contacted to the buccal region or the mastoid of the temporal region of a user. This microphone has a belt-like diaphragm whose both ends are fixed to a casing with one end open, a piezoelectric element installed on the re

A vibration-detecting-type microphone for detecting voice vibrations by being contacted to the buccal region or the mastoid of the temporal region of a user. This microphone has a belt-like diaphragm whose both ends are fixed to a casing with one end open, a piezoelectric element installed on the rear central part of this diaphragm, and a vibration pickup situated on the external surface of this diaphragm and designed to be contacted with the human body. The rear surface of the vibration pickup has at least one pair of sensing elements, and these sensing elements are located in such a way that they will not oppose the piezoelectric element through the diaphragm. This arrangement makes it possible to select and set the resonance frequency of the diaphragm and microphone, as desired. In addition, since the sensing elements of the vibration pickup are supported at two points or more by the diaphragm, the concentration of stress into the diaphragm as well as the damaging of the piezoelectric element can be prevented.

대표청구항 ▼

A vibration detecting microphone comprising: a casing having one open end defining an opening; a flexible diaphragm extending in a zigzag form and lying in a plane within the opening, the diaphragm having two ends secured at the opening; a vibration pickup configured to contact the human body during

A vibration detecting microphone comprising: a casing having one open end defining an opening; a flexible diaphragm extending in a zigzag form and lying in a plane within the opening, the diaphragm having two ends secured at the opening; a vibration pickup configured to contact the human body during use of the microphone and located on an external side of the diaphragm at a given distance therefrom, the pickup having at least one pair of spaced-apart feeler elements contacting the diaphragm; and a piezoelectric element mounted on the diaphragm, the piezoelectric element being positioned between and out of contact with the feeler elements.