Capacitance measuring apparatus and method, and program
    32.
    发明授权
    Capacitance measuring apparatus and method, and program 有权
    电容测量装置及方法及程序

    公开(公告)号:US07205776B2

    公开(公告)日:2007-04-17

    申请号:US11221108

    申请日:2005-09-07

    IPC分类号: G01R27/26 G06K9/00

    摘要: Whether a human body is touching or not is detected highly accurately at high speed. Switch SW1 is turned on to charge condenser Ca by power supply Vcc. The switch SW1 is turned off to transfer the electric charge charged in the condenser Ca to condensers Cs and Cx. The switches SW2 and SW3 are repeatedly turned on and off for a predetermined short time, and thus the electric charge charged in the condenser Ca is slowly discharged through resistor R. The unknown charging voltage Vx of the condenser Cx is compared with the reference voltage Vref by comparator Comp, and the unknown capacitance of the condenser Cx is computed based on the number of times to count turning on and off until it is smaller than the reference voltage Vref. When the computed unknown capacitance of the condenser Cx is the value near the capacitance of a human body, it is determined that a human body is touching. The invention can be applied to a touch sensor.

    摘要翻译: 是否高速准确地检测到人体是否触摸。 开关SW 1导通,通过电源Vcc对电容器Ca充电。 开关SW 1断开,将在电容器Ca中充入的电荷转移到电容器Cs和Cx。 开关SW 2和SW 3反复接通和断开预定的短时间,因此充电在电容器Ca中的电荷通过电阻器R缓慢放电。电容器Cx的未知充电电压Vx与参考 通过比较器Comp的电压Vref,并且基于计数打开和关闭的次数直到其小于参考电压Vref来计算电容器Cx的未知电容。 当计算出的电容器Cx的未知电容值接近人体的电容值时,确定人体正在接触。 本发明可应用于触摸传感器。

    Air conditioner
    34.
    发明授权
    Air conditioner 有权
    冷气机

    公开(公告)号:US06692223B2

    公开(公告)日:2004-02-17

    申请号:US10129823

    申请日:2002-05-09

    IPC分类号: F04D1704

    摘要: To obtain an air conditioning apparatus which provides a favorable atmosphere to the ear and saves energy even if the suction resistance of the impeller becomes high due to such as dust in the air conditioning apparatus. The air conditioning apparatus is provided with an impeller which is formed by a plurality of vanes and a ring for supporting the plurality of vanes, and includes a nozzle portion formed by a stabilizer and an air outlet, a cross flow fan formed by a guide wall, and a heat exchanger. The ratio H/&phgr;D2 of the outside diameter &phgr; D2 of the impeller to the height H of the air conditioning apparatus is 2.2 or above and 3.0 or below.

    摘要翻译: 即使由于空气调节装置中的灰尘等因素而使叶轮的吸入阻力变高,也能够获得能够提供良好的气氛的空气调节装置。 该空调装置设有叶片,该叶轮由多个叶片和用于支撑多个叶片的环形成,并且包括由稳定器和空气出口形成的喷嘴部分,由导向壁形成的横流风扇 ,和热交换器。 叶轮的外径φi2与空调装置的高度H的比H / phiD2为2.2以上且3.0以下。