Noise removal method and system
    1.
    发明授权
    Noise removal method and system 有权
    噪声去除方法和系统

    公开(公告)号:US09059792B2

    公开(公告)日:2015-06-16

    申请号:US13415117

    申请日:2012-03-08

    IPC分类号: A61F11/06 H04B15/00

    CPC分类号: H04B15/00 H04M1/6058

    摘要: A method and system for removing noise due to bias electric power (MIC_Bias) or Time Division Multiple Access (TDMA) noise are provided. The system includes an interface with a microphone contact, for connecting to an accessory, an Analog-to-Digital (AD) converter for converting an analog voltage level, input via the microphone contact, into a digital voltage level, an audio processing unit for processing an audio signal input via the microphone contact, a switch for at least one of connecting and disconnecting the microphone contact and the AD converter, and a controller. The controller compares the digital voltage level with voltage levels stored in a look up table. The controller identifies a type of accessory connected to the interface. The controller also switches off the switch to prevent noise from being introduced into the audio signal via a wire connecting the microphone contact and the AD converter.

    摘要翻译: 提供了用于消除由偏置电功率(MIC_Bias)或时分多址(TDMA)噪声引起的噪声的方法和系统。 该系统包括与麦克风接触的接口,用于连接到附件,用于将模拟电压电平转换为模拟电压电平的模拟电压电平,经由麦克风接点输入到数字电压电平,音频处理单元,用于 处理通过麦克风触点输入的音频信号,用于连接和断开麦克风触点和AD转换器的至少一个的开关,以及控制器。 控制器将数字电压电平与存储在查找表中的电压进行比较。 控制器识别连接到接口的附件类型。 控制器还关闭开关,以防止通过连接麦克风触点和AD转换器的导线将噪声引入音频信号。

    Second microphone device of a mobile terminal
    2.
    发明授权
    Second microphone device of a mobile terminal 有权
    移动终端的第二麦克风设备

    公开(公告)号:US09031620B2

    公开(公告)日:2015-05-12

    申请号:US13527041

    申请日:2012-06-19

    IPC分类号: H04B1/38 H04M1/03 H04R1/08

    摘要: A second microphone device of a mobile terminal, and more particularly, a second microphone device of a mobile terminal for preventing various limitations caused by mounting of a second microphone, is provided. The second microphone device includes an ear jack connector having an insertion space, a microphone hole connected at one end to the insertion space, and a second microphone connected at the other end of the microphone hole, thereby improving ambient noise removal performance of the mobile terminal without adversely affecting its appearance.

    摘要翻译: 提供了移动终端的第二麦克风设备,更具体地,提供了用于防止由第二麦克风的安装引起的各种限制的移动终端的第二麦克风设备。 第二麦克风装置包括具有插入空间的耳塞插座连接器,一端连接到插入空间的麦克风孔和连接在麦克风孔的另一端的第二麦克风,从而改善移动终端的环境噪声去除性能 而不会对其外观产生不利影响。

    Fuel tank cradle device for forklift trucks

    公开(公告)号:US06637706B2

    公开(公告)日:2003-10-28

    申请号:US10162233

    申请日:2002-06-05

    IPC分类号: A47G2302

    摘要: A fuel tank cradle device for forklift trucks is swingable to the lateral side and then foldable into a substantially vertical position, thereby assuring easy and safe change of a used fuel tank with a new one. The cradle device includes a counterweight, a cradle provided with a first body and a second body, the first body pivotally mounted to the counterweight for rotation between a home position above the counterweight and a rotated position outside of the counterweight, the second body capable of replaceably supporting a fuel tank and foldably connected to the first body so that the second body can be moved between an unfolded position and a downwardly folded position with respect to first body, and a locking arrangement for locking the cradle to the counterweight while the first body of the cradle is at the home position.