-
公开(公告)号：USD323656S
公开(公告)日：1992-02-04
申请号：US634267
申请日：1990-12-26
-
公开(公告)号：US5291541A
公开(公告)日：1994-03-01
申请号：US992312
申请日：1992-12-21
CPC分类号： H04M1/2155
摘要： Coupling apparatus for a telephone handset comprises a handset-coupling cradle having a dome at one end thereof for locating the earpiece (receiver) of the handset, and sound ports at the other end of the cradle in the region where the mouthpiece (microphone) of the handset resides. The handset-coupling cradle is shaped to accommodate a variety of different handset styles. An inductive sensor is mounted within the dome and it responds to electromagnetic fields generated by the handset receiver. Such a sensor eliminates the need to closely couple the receiver to the apparatus. A low acoustic impedance loudspeaker is mounted beneath the sound ports for acoustically coupling signals to the handset's microphone. Such a loudspeaker eliminates the need to closely couple the microphone to the apparatus.
摘要翻译： 用于电话听筒的耦合装置包括手机耦合支架，其在其一端具有用于定位手机的耳机（接收器）的圆顶的耳机，以及在支架的另一端处的口（麦克风） 手机留在。 手机耦合支架的形状适应各种不同的手机风格。 感应传感器安装在穹顶内，并响应手机接收机产生的电磁场。 这种传感器消除了将接收器紧密耦合到设备的需要。 低声阻抗扬声器安装在声音端口下方，用于将信号耦合到手机的麦克风。 这样的扬声器消除了将麦克风紧密耦合到设备的需要。
-
公开(公告)号：US5226076A
公开(公告)日：1993-07-06
申请号：US486444
申请日：1993-02-28
摘要： A directional microphone assembly is constructed from a first-order-gradient microphone element enclosed within a housing, molded from an acoustically-opaque, resilient material such as Ethylene-Propylene-Diene-Monomer. The microphone element includes a diaphragm which moves under the influence of sound pressures applied on its opposite surfaces to generate an electrical signal which is proportional to the differential sound pressure. The housing includes a first acoustically-transparent channel for communicating sound pressure from a first opening in the housing to one surface of the diaphragm, and a second acoustically-transparent channel for communicating sound pressure from a second opening in the housing to the other surface of the diaphragm. The housing supports the microphone element and forms a continuous seal around its perimeter so that sound pressure in one channel does not leak into the other. The distance between the openings is relatively large in order to improve the sensitivity and directivity of the microphone. Moreover, the directional microphone assembly is configured to be embedded within, or behind, an exterior surface of sound-input equipment with the openings of the housing located along the exterior surface. The resilient housing structure forms a seal with the sound-input equipment surface.
摘要翻译： 定向麦克风组件由封闭在壳体内的一级梯度麦克风元件构成，由声学不透明的弹性材料（例如乙烯 - 丙烯 - 二烯 - 单体）模制而成。 麦克风元件包括隔膜，其在施加在其相对表面上的声压的影响下移动，以产生与差分声压成比例的电信号。 壳体包括用于将声压从壳体中的第一开口传递到膜片的一个表面的第一声透明通道，以及用于将声压从壳体中的第二开口传递到另一表面的第二声透明通道 隔膜。 壳体支撑麦克风元件并围绕其周边形成连续的密封，使得一个通道中的声压不会泄漏到另一个通道中。 为了提高麦克风的灵敏度和方向性，开口之间的距离相对较大。 此外，定向麦克风组件被配置为嵌入声音输入设备的外表面内或之后，其中壳体的开口沿着外表面定位。 弹性壳体结构与声音输入设备表面形成密封。
-
-
搜索结果
3 条记录 (耗时 0.018 秒)
