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    • 56. 发明授权
    • Method of analyzing astigmatic difference and method of correcting the spot diameters for an optical device and spot analysis system
    • 分析散光差异的方法和校正光学元件和点分析系统的光斑直径的方法
    • US07175087B2
    • 2007-02-13
    • US11013550
    • 2004-12-15
    • Hiroshi Sakai
    • Hiroshi Sakai
    • G06K7/10
    • G06K7/10G06K7/14
    • A method of analyzing the astigmatic difference of an optical device for analyzing the astigmatism inherent to the optical device by utilizing a condensation performance analysis system while correcting the astigmatic difference inherent to the condensation performance analysis system for analyzing the condensation performance of the optical device to be analyzed. The method of analyzing an astigmatic difference has steps comprising: obtaining the astigmatic difference R(θn) at an angle θn while rotating the data points obtained from the optical device about given basic axes; computing a vector coefficient R0 in the same direction as the basic axes and another vector coefficient R45 at 45 degree to the basic axes by utilizing the maximum angle θmax at the greatest value of the astigmatic difference R(θn) and the greatest astigmatic difference θmax; computing an astigmatic difference R(θ) at an arbitrary angle θ derived from the vector coefficient R0 and the vector coefficient R45 by a fitting technique; correcting the vector coefficient R0 and the vector coefficient R45 by analyzing the condensation performance analysis system using a reference optical device with a known astigmatic difference; and computing the astigmatic difference of the optical device by utilizing the corrected vector coefficient R0 and corrected vector coefficient R45.
    • 一种分析光学装置的散光差异的方法,用于通过利用冷凝性能分析系统来分析光学装置固有的像散,同时校正冷凝性能分析系统固有的散光差异,以分析光学装置的冷凝性能 分析 分析散光差异的方法具有以下步骤:在旋转从光学装置获得的数据点的同时旋转从光学装置获得的数据点,获得角度θθ上的像散差R(θ/ N) 给定基本轴; 通过利用最大角度θθ与基本轴计算与基本轴相同方向的矢量系数R 0> 0和与基本轴成45度的另一向量系数R< 45> 最大像散差R(θ> N)和最大散光差θmax max的最大值。 通过拟合技术计算通过矢量系数R 0> 0导出的任意角度θ处的像散差R(θ)和向量系数R< 45> 通过使用具有已知散光差的参考光学装置分析冷凝性能分析系统来校正矢量系数R 0> 0和矢量系数R> 45< 以及通过利用校正的矢量系数R 0> 0和校正的矢量系数R> 45来计算光学装置的像散差。
    • 57. 发明申请
    • Aberration compensating device and optical head device
    • 畸变补偿装置和光头装置
    • US20060012846A1
    • 2006-01-19
    • US11172368
    • 2005-06-30
    • Hiroshi Sakai
    • Hiroshi Sakai
    • G02F1/01
    • G11B7/1369G02F1/13G02F2203/18G02F2203/50G11B7/13925G11B2007/0006
    • An aberration compensating device for compensating aberration of a laser beam emitted from a light source and converged on an optical recording disk through an objective lens includes a liquid crystal panel including a liquid crystal layer and transparent electrodes disposed so as to interpose the liquid crystal layer therebetween and a liquid crystal panel control part for controlling an applied voltage which is applied to the transparent electrodes. The transparent electrode includes a center part and a plurality of outer peripheral divided parts divided around the center part. When the diameter of an incident area of the laser beam corresponding to the pupil diameter of the objective lens on the liquid crystal panel is set to be “D1” and the diameter of the center part is set to be “D2”, (D2/D1) is set at a value in the range from about 0.5 to about 0.65.
    • 一种用于补偿从光源发出并通过物镜会聚在光记录盘上的像差的像差补偿装置,包括:液晶板,包括液晶层和设置成将液晶层插入其间的透明电极 以及用于控制施加到透明电极的施加电压的液晶面板控制部分。 透明电极包括围绕中心部分分割的中心部分和多个外周分割部分。 当与液晶面板上的物镜的瞳孔直径对应的激光束的入射面积的直径设定为“D 1”,将中心部的直径设定为“D 2”时, D 2 / D 1)设定在约0.5至约0.65的范围内的值。
    • 59. 发明申请
    • Onboard wireless communication system
    • 板载无线通信系统
    • US20050181837A1
    • 2005-08-18
    • US11056053
    • 2005-02-11
    • Hiroshi Sakai
    • Hiroshi Sakai
    • B60R16/033B60R16/02B60R16/04B60R21/00B60R25/102B60R25/40H01M10/44H01M10/48H02J7/00H04B1/38
    • B60R25/102B60R25/403
    • An onboard wireless communication system includes a power supply circuit, a wireless communication circuit, a control circuit, and a current integration circuit. The current integration circuit calculates an integration value of current fed from a battery after the battery starts discharging. The current integration circuit temporarily stops the calculation until transmission of a burglar alarm signal is completed when a burglar detection signal is outputted from a burglar detection ECU while the integration value is still smaller than a reference value. As a result, power supply from the power supply circuit to the wireless communication circuit is maintained. The power supply is stopped when the integration value is equal to or larger than the reference value while the burglar detection signal is still not outputted from the burglar detection ECU.
    • 车载无线通信系统包括电源电路,无线通信电路,控制电路和电流积分电路。 电流积分电路计算在电池开始放电之后从电池馈送的电流的积分值。 当积分值仍小于参考值时,当防盗检测信号从防盗检测ECU输出时,当前积分电路暂时停止计算,直到防盗报警信号的传输完成。 结果,维持从电源电路到无线通信电路的供电。 当防盗检测信号仍然不从防盗检测ECU输出时,积分值等于或大于参考值时停止电源。
    • 60. 发明申请
    • Method of analyzing astigmatic difference and method of correcting the spot diameters for an optical device and spot analysis system
    • 分析散光差异的方法和校正光学元件和点分析系统的光斑直径的方法
    • US20050156044A1
    • 2005-07-21
    • US11013550
    • 2004-12-15
    • Hiroshi Sakai
    • Hiroshi Sakai
    • G06K7/10G06K7/14
    • G06K7/10G06K7/14
    • A method of analyzing the astigmatic difference of an optical device for analyzing the astigmatism inherent to the optical device by utilizing a condensation performance analysis system while correcting the astigmatic difference inherent to the condensation performance analysis system for analyzing the condensation performance of the optical device to be analyzed. The method of analyzing an astigmatic difference has steps comprising: obtaining the astigmatic difference R(θn) at an angle θn while rotating the data points obtained from the optical device about given basic axes; computing a vector coefficient R0 in the same direction as the basic axes and another vector coefficient R45 at 45 degree to the basic axes by utilizing the maximum angle θmax at the greatest value of the astigmatic difference R(θn) and the greatest astigmatic difference θmax; computing an astigmatic difference R(θ) at an arbitrary angle θ derived from the vector coefficient R0 and the vector coefficient R45 by a fitting technique; correcting the vector coefficient R0 and the vector coefficient R45 by analyzing the condensation performance analysis system using a reference optical device with a known astigmatic difference; and computing the astigmatic difference of the optical device by utilizing the corrected vector coefficient R0 and corrected vector coefficient R45.
    • 一种分析光学装置的散光差异的方法,用于通过利用冷凝性能分析系统来分析光学装置固有的像散,同时校正冷凝性能分析系统固有的散光差异,以分析光学装置的冷凝性能 分析 分析散光差异的方法具有以下步骤:在旋转从光学装置获得的数据点的同时旋转从光学装置获得的数据点,获得角度θθ上的像散差R(θ/ N) 给定基本轴; 通过利用最大角度θθ与基本轴计算与基本轴相同方向的矢量系数R 0> 0和与基本轴成45度的另一向量系数R< 45> 最大像散差R(θ> N)和最大散光差θmax max的最大值。 通过拟合技术计算通过矢量系数R 0> 0导出的任意角度θ处的像散差R(θ)和向量系数R< 45> 通过使用具有已知散光差的参考光学装置分析冷凝性能分析系统来校正矢量系数R 0> 0和矢量系数R> 45< 以及通过利用校正的矢量系数R 0> 0和校正的矢量系数R> 45来计算光学装置的像散差。