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    • 22. 发明授权
    • Tracking error suppression and method of reducing tracking error
    • 跟踪误差抑制和减少跟踪误差的方法
    • US06792008B2
    • 2004-09-14
    • US09915184
    • 2001-07-24
    • Edmund L. WolakTae J. KimHarrison RansomJo MajorRobert Lang
    • Edmund L. WolakTae J. KimHarrison RansomJo MajorRobert Lang
    • H01S3067
    • G02B6/4203G02B6/02052G02B6/262G02B6/4207G02B6/4238H01S3/094053H01S5/02252H01S5/0656H01S5/06817H01S5/0683H01S5/147
    • A laser package comprises a laser diode source having a first Fabry-Perot cavity between a highly reflective back facet and low reflective front facet for providing a first light output for an optical application. A light monitor is positioned adjacent to the back facet and aligned to receive a second light output from the laser diode back facet. A pigtail fiber having a lensed fiber input end is positioned from the laser diode front facet to form an optical coupling region and is aligned relative to the lasing cavity to receive the first light output into the fiber, the light output exiting the package for coupling to the application. A portion of the first light output from the lasing cavity is reflected off the lensed fiber input end with a portion directed back into the lasing cavity and another portion reflected off of the laser diode front facet. The front facet forms with the lensed fiber input end a second Fabry-Perot cavity generating light which is periodically in and out of phase with the light generated in the first Fabry-Perot cavity due to changes in the length of the second Fabry-Perot cavity caused by package ambient temperature changes so that a tracking error is generated in a signal developed by the light monitor. Thus, this invention provides several ways to suppress the formation of the second Fabry-Perot cavity.
    • 激光器封装包括激光二极管源,其具有在高反射后面和低反射前面之间的第一法布里 - 珀罗腔,用于为光学应用提供第一光输出。 光监控器定位成与后面相邻并对准以接收来自激光二极管背面的第二光输出。 具有透镜光纤输入端的辫状光纤从激光二极管前刻面定位,以形成光耦合区域,并且相对于激光腔对准,以将第一光输出接收到光纤中,光输出离开封装以耦合到 应用程序。 从激光腔输出的第一光的一部分从透镜光纤输入端反射,其中一部分指向激光腔,另一部分从激光二极管前端面反射出去。 前透镜与透镜光纤输入端形成第二法布里 - 珀罗腔,其产生光,其由于第二法布里 - 珀罗腔的长度变化而周期性地与第一法布里 - 珀罗腔中产生的光异相和不同相 由封装环境温度变化引起的,从而在由光监测器开发的信号中产生跟踪误差。 因此,本发明提供了几种抑制第二法布里 - 珀罗腔形成的方法。
    • 28. 发明申请
    • Medical outcomes systems
    • 医疗成果系统
    • US20060241972A1
    • 2006-10-26
    • US11114142
    • 2005-04-26
    • Robert LangErin Henderson
    • Robert LangErin Henderson
    • G06Q10/00G07G1/00
    • G06Q50/22G06Q30/0203G16H10/20G16H40/20
    • A method of measuring the effectiveness of a surgical or medical treatment carried out on a patient population is provided. The method involves the steps of selecting a patient population, deriving pre-treatment score and post-treatment scores for each patient based on their questionnaire responses to quality of life-related criteria, deriving an adjusted score by subtracting the pre-treatment score from the post-treatment score, and analyzing the distribution of patients having each adjusted score to provide a measure of the effectiveness of the surgical or medical treatment. The population of patients may includes patients having different values of a variable affecting the effectiveness of the surgical treatment. The effect of these variables on the adjusted scores may be analyzed by a computerized statistical software program.
    • 提供了测量对患者群体进行的外科或医疗治疗的有效性的方法。 该方法包括以下步骤:基于对每个患者的问卷调查响应,选择患者人群,得出每个患者的治疗前评分和治疗后分数,通过从生物相关标准中减去预处理分数得出调整后的分数 治疗后分数,并分析每个调整分数的患者的分布,以提供手术或治疗有效性的量度。 患者人群可能包括具有影响手术治疗有效性变量的不同值的患者。 这些变量对调整分数的影响可以通过计算机化的统计软件程序进行分析。
    • 29. 发明申请
    • Two-dimensional motion sensor
    • 二维运动传感器
    • US20060091301A1
    • 2006-05-04
    • US11261316
    • 2005-10-28
    • Jahja TrisnadiClinton CarlisleRobert Lang
    • Jahja TrisnadiClinton CarlisleRobert Lang
    • G01J3/50
    • G06F3/0383G06F3/0317
    • An optical sensor and method of using the same is provided for sensing relative movement between the sensor and a surface by detecting changes in optical features of light reflected from the surface. In one embodiment, the sensor includes a two dimensional array of photosensitive elements, the array including at least a first plurality of photosensitive elements arranged and coupled to sense a first combined movement along a first set of at least two non-parallel axes, and a second plurality of photosensitive elements arranged and coupled to sense a second combined movement along a second set of at least two non-parallel axes.
    • 提供了一种光学传感器及其使用方法,用于通过检测从表面反射的光的光学特征的变化来感测传感器和表面之间的相对移动。 在一个实施例中,传感器包括感光元件的二维阵列,该阵列包括至少第一组多个感光元件,其布置和耦合以感测沿第一组至少两个非平行轴的第一组合运动,以及 第二组多个感光元件被布置和耦合以感测沿着至少两个非平行轴的第二组的第二组合运动。