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    • 2. 发明授权
    • Apparatus and method for reading indicia using charge coupled device and
scanning laser beam technology
    • 使用电荷耦合器件和扫描激光束技术读取标记的装置和方法
    • US5672858A
    • 1997-09-30
    • US269170
    • 1994-06-30
    • Yajun LiJoseph KatzJerome SwartzDaniel McGlynn
    • Yajun LiJoseph KatzJerome SwartzDaniel McGlynn
    • G06K7/015G06K7/10
    • G06K7/1092G06K7/10811G06K2207/1011G06K2207/1018
    • A scanning device for reading indicia of differing light reflectivity, including bar code or matrix array symbols, has a single light emitter, such as a laser or light emitting diode, for generating a scanning light beam to visually illuminate sequential portions of the indicia. A sensor, such as a charge coupled or other solid state imaging device, simultaneously detects light reflected from portions of the indicia and generates an electrical signal representative of the spacial intensity variations the portions of the indicia. The scanning device may also include an ambient light sensor, and a second light emitter for use only in aiming or orienting the scanning device. A photodetector may also be provided to separately detect one symbol virtually simultaneous with the detection of another symbol by the sensor or to provide dual modalities. A method for reading indicia is also provided.
    • 用于读取不同光反射率的标记(包括条形码或矩阵阵列符号)的扫描装置具有用于产生扫描光束以目视照亮标记的顺序部分的单个光发射器,例如激光或发光二极管。 诸如电荷耦合或其它固态成像装置的传感器同时检测从标记的部分反射的光,并产生代表标记部分的空间强度变化的电信号。 扫描装置还可以包括环境光传感器和仅用于瞄准或定向扫描装置的第二光发射器。 还可以提供光电检测器以与传感器检测另一个符号同时检测一个符号,或提供双重方式。 还提供了读取标记的方法。
    • 4. 发明授权
    • Apparatus and method for reading indicia using charge coupled device and scanning laser beam technology
    • 使用电荷耦合器件和扫描激光束技术读取标记的装置和方法
    • US06398112B1
    • 2002-06-04
    • US09540404
    • 2000-03-31
    • Yajun LiJoseph KatzJerome SwartzEdward Barkan
    • Yajun LiJoseph KatzJerome SwartzEdward Barkan
    • G06K710
    • G06K7/1092G06K7/10811G06K2207/1011G06K2207/1018
    • A scanning device for reading indicia of differing light reflectivity, including bar code or matrix array symbols, has a single light emitter, such as a laser or light emitting diode, for generating a scanning light beam to visually illuminate sequential portions of the indicia. A sensor, such as a charge coupled or other solid state imaging device, simultaneously detects light reflected from portions of the indicia and generates an electrical signal representative of the spacial intensity variations the portions of the indicia. The scanning device may also include an ambient light sensor, and a second light emitter for use only in aiming or orienting the scanning device. A photodetector may also be provided to separately detect one symbol virtually simultaneous with the detection of another symbol by the sensor or to provide dual modalities. A method for reading indicia is also provided.
    • 用于读取不同光反射率的标记(包括条形码或矩阵阵列符号)的扫描装置具有用于产生扫描光束以目视照亮标记的顺序部分的单个光发射器,例如激光或发光二极管。 诸如电荷耦合或其它固态成像装置的传感器同时检测从标记的部分反射的光,并产生代表标记部分的空间强度变化的电信号。 扫描装置还可以包括环境光传感器和仅用于瞄准或定向扫描装置的第二光发射器。 还可以提供光电检测器以与传感器检测另一个符号同时检测一个符号,或提供双重方式。 还提供了读取标记的方法。