发明名称 |
SOUND GENERATOR AND SOUND RECEIVER |
摘要 |
PURPOSE:To obtain a thin-gage sound generator and sound receiver having a wide range and high sensitivity, by setting two sheets of diaphragm opposite to each other and then giving the connection and vibration to both diaphragms via an air layer. CONSTITUTION:A sheet of diaphragm 11 is set via an air layer 10 and opposite to a metallic diaphragm 1 to which a piezoelectric ceramics 2 is adhered. The diaphragm 1 vibrates with the AC signal applied through an air terminal 4 which is connected to the diaphragm 1 and the ceramics 2. the vibration of the diaphragm 1 is transmitted to the diaphragm 11 via the layer 10. As a result, the frequency- sensitivity characteristics has two peaks to relaize a thin-gage sound generator and sound receiver having a wide range and high sensitivity. |
申请公布号 |
JPS5725794(A) |
申请公布日期 |
1982.02.10 |
申请号 |
JP19800100564 |
申请日期 |
1980.07.24 |
申请人 |
NIPPON TELEGRAPH & TELEPHONE;TOKYO SHIBAURA ELECTRIC CO |
发明人 |
ICHINOSE YUTAKA;IZUMI HIROHIKO |
分类号 |
H04R1/22;H04R1/28;H04R7/04;H04R17/00 |
主分类号 |
H04R1/22 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|