发明名称 |
DEVICE FOR MEASURING THE DISTANCE BETWEEN A HEAD AND A HEADREST, HEADREST-POSITION ADJUSTING DEVICE USING SAID DEVICE, METHOD FOR MEASURING THE DISTANCE BETWEEN A HEAD AND A HEADREST, AND HEADREST-POSITION ADJUSTING METHOD USING SAID METHOD |
摘要 |
Disclosed is a headrest position adjusting device provided with a distance measuring device and drive motor units. The distance measuring device is provided with a plurality of detection electrodes and a detection circuit including a plurality of capacitance detection circuits and a computation circuit. The computation circuit uses capacitance values, position information from the detection electrodes, and a high-degree function with a degree of at least 3 to compute a high-degree curve in a two-dimensional coordinate system with capacitance on the y-axis and detection-electrode position on the x-axis. The computation circuit computes the highest-degree coefficient of the high-degree curve and determines the distance between a head and a front part of a headrest on the basis of the computed highest-degree coefficient. On the basis of the measurement result, the headrest position adjusting device moves the front part of the headrest towards the front or back of a vehicle.
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申请公布号 |
US2013116893(A1) |
申请公布日期 |
2013.05.09 |
申请号 |
US201213724657 |
申请日期 |
2012.12.21 |
申请人 |
FUJIKURA LTD.;FUJIKURA LTD. |
发明人 |
YAMAGUCHI YUICHIRO;SAKURAI RYOUHEI;OSAKI TAKUYA;NOGUCHI YUKI |
分类号 |
B60N2/44;G06F19/00 |
主分类号 |
B60N2/44 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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