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    • 3. 发明申请
    • POWER DETECTOR AND WIRELESS DEVICE
    • 电力检测器和无线设备
    • US20120008669A1
    • 2012-01-12
    • US13053506
    • 2011-03-22
    • Takayuki TeraguchiMasahiro HasegawaNoriyoshi OdakiShigehiro HosoiTakahiro Nakagawa
    • Takayuki TeraguchiMasahiro HasegawaNoriyoshi OdakiShigehiro HosoiTakahiro Nakagawa
    • H04B17/00G01R21/00
    • G01R21/10
    • According to one embodiment, a power detector includes a reference voltage generator, a square signal generator, a detection circuit, and an output circuit. The reference voltage generator is configured to receive a bias voltage and generate a reference voltage. The square signal generator is configured to receive a voltage having a high frequency input voltage superimposed on the bias voltage and output a signal including the reference voltage, a voltage of a square of the high frequency input voltage, and a high-frequency signal. The detection circuit has a first lowpass filter, a first operational amplifier configured to amplify error between an output voltage of the first lowpass filter and the reference voltage and output the error as a control voltage, and a feedback transistor configured to feed a feedback current according to the control voltage back to an output terminal of the square signal generator.
    • 根据一个实施例,功率检测器包括参考电压发生器,方形信号发生器,检测电路和输出电路。 参考电压发生器被配置为接收偏置电压并产生参考电压。 方波信号发生器被配置为接收具有叠加在偏置电压上的高频输入电压的电压,并输出包括基准电压,高频输入电压的平方的电压和高频信号的信号。 检测电路具有第一低通滤波器,第一运算放大器,被配置为放大第一低通滤波器的输出电压与参考电压之间的误差,并输出误差作为控制电压;以及反馈晶体管,被配置为馈送反馈电流, 到控制电压返回到方形信号发生器的输出端。
    • 4. 发明申请
    • NAVIGATION SYSTEM
    • 导航系统
    • US20110181540A1
    • 2011-07-28
    • US13121594
    • 2009-09-29
    • Fumitake NakamuraNoriyuki KamikawaTakahiro NakagawaSatoru Nagamoto
    • Fumitake NakamuraNoriyuki KamikawaTakahiro NakagawaSatoru Nagamoto
    • G06F3/041
    • G01C21/26G01C21/265G09B29/007G09B29/10
    • A navigation system is provided. A medium insertion port is disposed on the front surface of a main unit and a portable recording medium is loaded into or unloaded from the main unit through the medium insertion port. A display unit is disposed on the front surface of the main unit and can move between a closed position where the medium insertion port is covered and an opened position where the medium insertion port is exposed. A limitation section limits the movement of the display unit to the opened position. A limitation removing section removes the limitation by the limitation section. An operation section receives an operation on the navigation system. The operation section can receive an operation other than an operation to be intrinsically received by the operation section. The limitation removing section removes the limitation by the limitation section when the operation section receives the operation other than the operation to be intrinsically received.
    • 提供导航系统。 介质插入口设置在主单元的前表面上,并且便携式记录介质通过介质插入口装载到主单元或从主单元卸载。 显示单元设置在主单元的前表面上,并且可以在介质插入口被覆盖的关闭位置和介质插入口露出的打开位置之间移动。 限制部分将显示单元的移动限制到打开位置。 限制删除部分消除限制部分的限制。 操作部接收导航系统的动作。 操作部可以接收由操作部本身接收的操作以外的操作。 当操作部接收除了本体接收的操作之外的操作时,限制消除部分消除限制部分的限制。
    • 9. 发明授权
    • Mobile terminal
    • 移动终端
    • US09106728B2
    • 2015-08-11
    • US13258909
    • 2010-03-02
    • Takahiro Nakagawa
    • Takahiro Nakagawa
    • H04M1/03H04R1/34H04M1/02H04M1/60
    • H04M1/035H04M1/0214H04M1/0216H04M1/6033H04M1/6041H04R1/345
    • An object of the present invention is to provide a mobile terminal in which a sound path can be secured around speaker sound holes when the mobile terminal is placed and which can thereby provide stable sound to a user. A mobile terminal according to the present invention is a mobile terminal in which an upper housing including a display unit is connected to a lower housing (1) including an operation unit in a freely-movable fashion and a speaker sound hole (7) is formed in a surface of the lower housing (1) opposite to the operation unit (rear surface), in which the rear surface is configured so as to be inclined with respect to a placing-surface (6) when the mobile terminal is placed on the placing-surface so that a space (9) that allows speaker sound to be released is formed between the rear surface and the placing-surface, and a protrusion (4) is formed near the speaker sound hole (7). As a result, a sound path is secured around the speaker sound hole (7), and therefore stable sound can be provided to a user.
    • 本发明的目的是提供一种移动终端,其中当移动终端被放置时可以在扬声器声孔周围固定声音路径,并且由此可以向用户提供稳定的声音。 根据本发明的移动终端是其中包括显示单元的上壳体以可自由移动的方式连接到包括操作单元的下壳体(1)的移动终端,并且形成扬声器音孔(7) 在所述下壳体(1)的与所述操作单元(后表面)相对的表面中,其中所述后表面被配置为当所述移动终端被放置在所述移动终端上时相对于放置表面(6)倾斜 使得在后表面和放置表面之间形成允许扬声器声音释放的空间(9),并且在扬声器音孔(7)附近形成有突起(4)。 结果,在扬声器音孔(7)周围固定声音路径,因此可以向用户提供稳定的声音。
    • 10. 发明授权
    • Navigation system
    • 导航系统
    • US08896550B2
    • 2014-11-25
    • US13121594
    • 2009-09-29
    • Fumitake NakamuraNoriyuki KamikawaTakahiro NakagawaSatoru Nagamoto
    • Fumitake NakamuraNoriyuki KamikawaTakahiro NakagawaSatoru Nagamoto
    • G06F3/041G01C21/26G09B29/00G09B29/10
    • G01C21/26G01C21/265G09B29/007G09B29/10
    • A navigation system is provided. A medium insertion port is disposed on the front surface of a main unit and a portable recording medium is loaded into or unloaded from the main unit through the medium insertion port. A display unit is disposed on the front surface of the main unit and can move between a closed position where the medium insertion port is covered and an opened position where the medium insertion port is exposed. A limitation section limits the movement of the display unit to the opened position. A limitation removing section removes the limitation by the limitation section. An operation section receives an operation on the navigation system. The operation section can receive an operation other than an operation to be intrinsically received by the operation section. The limitation removing section removes the limitation by the limitation section when the operation section receives the operation other than the operation to be intrinsically received.
    • 提供导航系统。 介质插入口设置在主单元的前表面上,并且便携式记录介质通过介质插入口装载到主单元或从主单元卸载。 显示单元设置在主单元的前表面上,并且可以在介质插入口被覆盖的关闭位置和介质插入口露出的打开位置之间移动。 限制部分将显示单元的移动限制到打开位置。 限制删除部分消除限制部分的限制。 操作部接收导航系统的动作。 操作部可以接收由操作部本身接收的操作以外的操作。 当操作部接收除了本体接收的操作之外的操作时,限制消除部分消除限制部分的限制。