公开(公告)号：US06349225B1

公开(公告)日：2002-02-19

申请号：US09285221

申请日：1999-04-01

申请人： Robert Michael Lands ,  An Tuyen Banh

发明人： Robert Michael Lands ,  An Tuyen Banh

IPC分类号： A04M100

CPC分类号： H04M1/03 ,  H04M1/0214 ,  H04M1/0243 ,  H04M1/6016

摘要： Wireless communications devices using a given speaker for both handset and speakerphone operation are equipped with a mechanical spacer that automatically inhibits the user from placing the speaker in close proximity to the user's ear when the wireless communications device is in speakerphone mode. The spacer is moved from a normal position to a blocking position to switch the device from handset to speakerphone mode. The mechanical spacer may take a variety of forms, such as an articulating antenna, a moveable frame, a moveable speaker flap, and the like. The extra space between the speaker and the user's ear mandated by the presence of the spacer allows the sound generated by the speaker in speakerphone mode to dissipate somewhat before reaching the user's ear, even when the speaker is held as close as possible, thereby automatically providing hearing protection when the wireless communications device is configured for speakerphone operation. In addition, when wireless communications devices incorporating the present invention are in handset mode, the audio level from the speaker is attenuated before reaching the user's ear. This attenuation may come from electronic means, such as by using a lower amount of amplification, or from mechanical means, such as by blocking or otherwise diminishing the sound generated by the speaker, or both. Thus, a wireless communications device incorporating the present invention automatically provides hearing protection during both handset and speakerphone modes of operation.

摘要翻译： 使用给定扬声器用于手机和免提电话操作的无线通信设备配备有机械间隔件，当无线通信设备处于免提模式时，其自动地禁止用户将扬声器放置在与用户耳朵附近的位置。 间隔件从正常位置移动到阻挡位置，以将设备从手机切换到扬声器模式。 机械间隔件可以采取各种形式，例如铰接天线，可移动框架，可移动的扬声器挡板等。 扬声器和用户的耳朵之间的额外空间由间隔件的存在使得扬声器在扬声器模式下产生的声音在到达用户的耳朵之前有些散发，即使扬声器保持尽可能靠近，从而自动提供 当无线通信设备被配置为免提电话操作时的听觉保护。 此外，当结合本发明的无线通信设备处于手机模式时，来自扬声器的音频电平在到达用户的耳朵之前衰减。 这种衰减可以来自电子装置，例如通过使用较低量的放大，或来自机械装置，例如通过阻塞或以其它方式减少由扬声器产生的声音，或两者。 因此，结合本发明的无线通信设备在手机和免提电话操作模式期间自动提供听力保护。