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    • 24. 发明授权
    • Wide-angle lens system
    • 广角镜头系统
    • US07411746B2
    • 2008-08-12
    • US11677713
    • 2007-02-22
    • Koji KatoMasakazu Saori
    • Koji KatoMasakazu Saori
    • G02B15/14
    • G02B15/177G02B9/04G02B13/06
    • A wide-angle lens system includes a negative front lens group and a positive rear lens group, in this order from the object.The negative front lens group includes a negative first sub-lens group and a positive second sub-lens group, in this order from the object.The positive rear lens group includes cemented lens elements having a positive lens element, a negative lens element and a positive lens element.The wide-angle lens system satisfies the following conditions: −0.8
    • 广角镜头系统从该物体起依次包括负前透镜组和正后透镜组。 负的前透镜组包括负的第一子透镜组和正的第二子透镜组,从该物体开始。 正后透镜组包括具有正透镜元件,负透镜元件和正透镜元件的胶合透镜元件。 广角镜头系统满足以下条件:<?in-line-formula description =“In-line formula”end =“lead”?> -0.8 <?in-line-formula description =“In-line Formulas”end =“lead”?> 0.7 其中fla表示负第一子透镜组的焦距; flb表示正的第二子透镜组的焦距; f表示整个广角镜头系统的焦距; fR表示正后透镜组的焦距。
    • 29. 发明授权
    • Driving assisting apparatus for vehicles
    • 车辆驾驶辅助装置
    • US07126461B2
    • 2006-10-24
    • US10972476
    • 2004-10-26
    • Masakazu TakeichiYoshihisa SatoKoji Kato
    • Masakazu TakeichiYoshihisa SatoKoji Kato
    • B60Q1/00
    • G01S15/46B60Q9/006B60Q9/007G01S15/876G01S15/931G01S2015/939
    • A pair of distance measurement sensors provided at different heights measures distances to an obstruction. When the measured distances are shorter than a threshold distance, the height of the vehicle is found based on the measured distances. When the height of the vehicle is found greater than a threshold height, the existence of the obstruction is reported to the driver. When the height of the vehicle is found smaller than the threshold height, on the other hand, a change in obstruction height is found and compared with a threshold. When the change in obstruction height is greater than the threshold, the existence of the obstruction is reported to the driver since the height is determined to be an unreliable result of computation.
    • 在不同高度处提供的一对距离测量传感器测量到障碍物的距离。 当测量的距离小于阈值距离时,基于所测量的距离找到车辆的高度。 当发现车辆的高度大于阈值高度时,向驾驶员报告障碍物的存在。 另一方面,当发现车辆的高度小于阈值高度时,发现障碍物高度的变化并与阈值进行比较。 当阻塞高度的变化大于阈值时,障碍物的存在被报告给驾驶员,因为高度被确定为不可靠的计算结果。