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    • 1. 发明申请
    • System and method for sensing ambient light in an optical code reader
    • 用于在光学代码读取器中感测环境光的系统和方法
    • US20050205677A1
    • 2005-09-22
    • US10803669
    • 2004-03-18
    • Mehul PatelPierre CraenWilliam BeckerDaniel Brown
    • Mehul PatelPierre CraenWilliam BeckerDaniel Brown
    • G06K7/10G06K7/14
    • G06K7/10752G06K7/10732
    • A system and method are provided for scanning an optical code, in which an optical code scanner system includes an ambient light sensor having at least one photo sensor for sensing ambient light conditions and generating at least one first electrical signal corresponding to the sensing of the ambient light conditions, and a photo sensor array having a plurality of photo sensors for sensing light reflected from the target being imaged and generating a plurality of second electrical signals corresponding the sensing of the reflected light. The optical code scanner further includes at least one of exposure circuitry for controlling exposure during the sensing of the reflected light, gain circuitry for processing gain of at least a portion of the plurality of second electrical signals and an illumination assembly for providing illumination for illuminating the target; and a processing circuitry for processing at least a portion of the at least one first electrical signal electrical signal and controlling at least one of the exposure circuitry, the gain circuitry and the illumination assembly in accordance with the processing of the at least a portion of the at least one first electrical signal.
    • 提供了用于扫描光学代码的系统和方法,其中光学代码扫描器系统包括环境光传感器,该环境光传感器具有用于感测环境光条件的至少一个光传感器,并且产生对应于环境感测的至少一个第一电信号 光条件和具有多个光传感器的光传感器阵列,用于感测从被成像的目标物反射的光,并产生对应于反射光的感测的多个第二电信号。 光学代码扫描器还包括用于在感测反射光期间控制曝光的曝光电路中的至少一个,用于处理多个第二电信号的至少一部分的增益的增益电路和用于提供照明的照明的照明组件 目标; 以及处理电路,用于处理所述至少一个第一电信号电信号的至少一部分,并且根据所述至少一部分的处理来控制所述曝光电路,所述增益电路和所述照明组件中的至少一个 至少一个第一电信号。
    • 2. 发明授权
    • System and method for sensing ambient light in an optical code reader
    • 用于在光学代码读取器中感测环境光的系统和方法
    • US07303126B2
    • 2007-12-04
    • US10803669
    • 2004-03-18
    • Mehul PatelPierre CraenWilliam Joshua BeckerDaniel Brown
    • Mehul PatelPierre CraenWilliam Joshua BeckerDaniel Brown
    • G06K7/14
    • G06K7/10752G06K7/10732
    • A system and method are provided for scanning an optical code, in which an optical code scanner system includes an ambient light sensor having at least one photo sensor for sensing ambient light conditions and generating at least one first electrical signal corresponding to the sensing of the ambient light conditions, and a photo sensor array having a plurality of photo sensors for sensing light reflected from the target being imaged and generating a plurality of second electrical signals corresponding the sensing of the reflected light. The optical code scanner system further includes at least one of exposure circuitry for controlling exposure during the sensing of the reflected light, gain circuitry for processing gain of at least a portion of the plurality of second electrical signals and an illumination assembly for providing illumination for illuminating the target; and a processing circuitry for processing at least a portion of the at least one first electrical signal and controlling at least one of the exposure circuitry, the gain circuitry and the illumination assembly in accordance with the processing of the at least a portion of the at least one first electrical signal.
    • 提供了用于扫描光学代码的系统和方法,其中光学代码扫描器系统包括环境光传感器,该环境光传感器具有用于感测环境光条件的至少一个光传感器,并且产生对应于环境感测的至少一个第一电信号 光条件和具有多个光传感器的光传感器阵列,用于感测从被成像的目标物反射的光,并产生对应于反射光的感测的多个第二电信号。 光学代码扫描器系统还包括用于在感测反射光期间控制曝光的曝光电路中的至少一个,用于处理多个第二电信号的至少一部分的增益的增益电路和用于提供照明的照明的照明组件 目标; 以及处理电路,用于处理所述至少一个第一电信号的至少一部分,并且根据所述至少一个至少一部分的处理来控制所述曝光电路,所述增益电路和所述照明组件中的至少一个 一个第一个电信号。
    • 4. 发明授权
    • Semi-retroreflective scanners
    • 半反光扫描仪
    • US5955720A
    • 1999-09-21
    • US619244
    • 1996-03-21
    • Duanfeng HeRichard IsaacMehul PatelDaniel Brown
    • Duanfeng HeRichard IsaacMehul PatelDaniel Brown
    • G06K7/10
    • G06K7/10603G06K7/10663G06K7/10693G06K7/10702G06K7/10801G06K2207/1015
    • A semi-retroreflective optical scanning system has an optical scanning element which directs a scanning light beam via a stationary holographic optical element in a scan path across indicia to be read. Light from the indicia is collected by an optical collector, such as a lens or a mirror, which focuses it onto a small optical detector via the scanning element. The field of view of the optical detector scans across the indicia in synchronization with the outgoing scanning beam from the holographic optical element. Since the incoming reflected light is not limited by the aperture of the scanning element, the signal-to-noise ratio remains high even when a small scanning element is used. In a further embodiment the light source, scanning element collector and detector are provided in a common plane, the collector and scanning element sharing a common optical axis and a light source being provided substantially off axis to allow reduction in the scanning element size. In a further aspect of the invention a solid state reader is provided capable of establishing the distance to the target by sensing the exact position on the detector at which the target is imaged. According to yet a further aspect of the invention the problem of specular blinding is overcome by providing a plurality of sensors activated in a dynamic on-off sequence, for example a random sequence.
    • 半回光光学扫描系统具有光学扫描元件,其通过经过待读取的标记的扫描路径中的静止全息光学元件引导扫描光束。 来自标记的光由诸如透镜或反射镜的光学收集器收集,其通过扫描元件将其聚焦到小型光学检测器上。 光学检测器的视野与来自全息光学元件的输出扫描光束同步地扫描标记。 由于入射的反射光不受扫描元件的孔径的限制,即使使用小的扫描元件,信噪比也保持较高。 在另一个实施例中,光源,扫描元件收集器和检测器设置在公共平面中,集电器和扫描元件共享公共光轴,光源基本上设置在离轴上,以允许减小扫描元件尺寸。 在本发明的另一方面,提供了一种固态读取器,其能够通过感测检测器上目标物被成像的确切位置来建立与目标的距离。 根据本发明的另一方面,通过提供在动态开关序列(例如随机序列)中激活的多个传感器来克服镜面盲法的问题。
    • 8. 发明申请
    • QUARTZ GUARD RING CENTERING FEATURES
    • QUARTZ GUARD戒指中心特点
    • US20110083318A1
    • 2011-04-14
    • US12967717
    • 2010-12-14
    • Dean J. LarsonDaniel BrownKeith ComendantVictor Wang
    • Dean J. LarsonDaniel BrownKeith ComendantVictor Wang
    • B23P11/00
    • H01J37/3255H01J37/32009H01J37/32568Y10T29/49002
    • An electrode assembly and method of centering an outer ring around an electrode assembly in a plasma reaction chamber used in semiconductor substrate processing. The method includes positioning the outer ring around an outer surface of a backing member of the electrode assembly, and inserting at least one centering element between the outer ring and the backing member. The centering element can be a plurality of spring-loaded centering elements received in a cavity on the outer surface of the backing member, the centering elements having a first end adapted to contact the outer ring and a second end adapted to receive a spring. The outer ring surrounds an outer surface of the backing member, such that the plurality of spring-loaded centering elements are positioned between the outer surface of the backing member and an inner surface of the outer ring.
    • 一种电极组件和使外环围绕用于半导体衬底处理的等离子体反应室中的电极组件对中的方法。 该方法包括将外环围绕电极组件的背衬构件的外表面定位,并且在外环和背衬构件之间插入至少一个定心元件。 定心元件可以是容纳在背衬构件的外表面上的空腔中的多个弹簧加载的定心元件,定心元件具有适于接触外圈的第一端和适于容纳弹簧的第二端。 外环围绕背衬构件的外表面,使得多个弹簧加载的定心元件位于背衬构件的外表面和外环的内表面之间。
    • 9. 发明授权
    • Quartz guard ring centering features
    • 石英护环中心功能
    • US07875824B2
    • 2011-01-25
    • US11701507
    • 2007-02-02
    • Dean J. LarsonDaniel BrownKeith ComendantVictor Wang
    • Dean J. LarsonDaniel BrownKeith ComendantVictor Wang
    • B23K10/00
    • H01J37/3255H01J37/32009H01J37/32568Y10T29/49002
    • An electrode assembly and method of centering an outer ring around an electrode assembly in a plasma reaction chamber used in semiconductor substrate processing. The method includes positioning the outer ring around an outer surface of a backing member of the electrode assembly, and inserting at least one centering element between the outer ring and the backing member. The centering element can be a plurality of spring-loaded centering elements received in a cavity on the outer surface of the backing member, the centering elements having a first end adapted to contact the outer ring and a second end adapted to receive a spring. The outer ring surrounds an outer surface of the backing member, such that the plurality of spring-loaded centering elements are positioned between the outer surface of the backing member and an inner surface of the outer ring.
    • 一种电极组件和使外环围绕用于半导体衬底处理的等离子体反应室中的电极组件对中的方法。 该方法包括将外环围绕电极组件的背衬构件的外表面定位,并且在外环和背衬构件之间插入至少一个定心元件。 定心元件可以是容纳在背衬构件的外表面上的空腔中的多个弹簧加载的定心元件,定心元件具有适于接触外圈的第一端和适于容纳弹簧的第二端。 外环围绕背衬构件的外表面,使得多个弹簧加载的定心元件位于背衬构件的外表面和外环的内表面之间。