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    • 1. 发明授权
    • Apparatus and method for scanning a symbol using an intelligent laser
focus control
    • 使用智能激光聚焦控制扫描符号的装置和方法
    • US6095421A
    • 2000-08-01
    • US183523
    • 1998-10-30
    • Edward BarkanRaj BridgelallJean TuYuri GofmanJoseph GiordanoEdmond L. Fratianni
    • Edward BarkanRaj BridgelallJean TuYuri GofmanJoseph GiordanoEdmond L. Fratianni
    • G06K7/10
    • G06K7/10811G06K7/1092G06K2207/1011G06K2207/1018
    • A laser focus control system including a laser for generating a scanning light beam to visually illuminate an information encoded bar code symbol. A segmented photodiode detects light reflected from the symbol and generates a plurality of electrical signals, each signal based on the light energy incident on the segments of the photodiode, thereby representing the spatial intensity variations of the symbol. A scanning zone processor then filters, averages, and compares the electrical signals to a noise threshold, and assigns logic levels based on the comparisons. Thereafter, a scanning zone detector determines the corresponding scanning zone distance based on the combination of logic levels and determines whether the system has stabilized within the zone distance. The scanning zone distance is then furnished to the laser focus controller in order to adjust the laser focus of the scanning device. The system is incorporated in a shock-resistant hand-held device.
    • 一种激光对焦控制系统,包括用于产生扫描光束以在视觉上照亮信息编码的条形码符号的激光器。 分段光电二极管检测从符号反射的光并产生多个电信号,每个信号基于入射到光电二极管的光束上的光能,从而表示符号的空间强度变化。 扫描区域处理器然后对电信号进行滤波,平均和比较,并将噪声阈值进行比较,并根据比较分配逻辑电平。 此后,扫描区域检测器基于逻辑电平的组合来确定相应的扫描区域距离,并且确定系统是否在区域距离内稳定。 然后将扫描区距离提供给激光对焦控制器,以便调整扫描装置的激光焦点。 该系统结合在防震手持装置中。
    • 2. 发明授权
    • Bar code symbol reader with locking cable connector assembly
    • 具有锁定电缆连接器组件的条形码符号读取器
    • US5378882A
    • 1995-01-03
    • US952409
    • 1992-09-30
    • Frank GongYuri GofmanAlex Breytman
    • Frank GongYuri GofmanAlex Breytman
    • G06K7/10
    • G06K7/10881
    • A hand held bar code reader or scanner includes a universal locking cable connector assembly attaching a signal cable to the handle of the scanner. Signals and/or power to and from the scanner are carried by the signal cable. The signal cable is removably connected to a connector recessed in the handle of the scanner. The signal cable includes (i) a connector member attached to a terminal end thereof and engagable with the connector of the scanner handle and (ii) a collar adjacent the connector. A plastic retaining member is positionable over the collar and includes an internal stepped bore forming a collar at one end of the retaining member for engaging the collar portion of the signal cable within the bore. A manually lockable bayonet or threaded portion of the retaining member is formed at an opposite end and cooperates with an internal surface of the scanner for securing the retaining member to the housing. With the retaining member secured to the handle of the scanner, the signal connector is electrically coupled with the connector of the scanner.
    • 手持式条形码读取器或扫描仪包括将信号电缆连接到扫描器的手柄的通用锁定电缆连接器组件。 来自扫描仪的信号和/或电源由信号电缆承载。 信号电缆可拆卸地连接到凹陷在扫描器的手柄中的连接器。 信号电缆包括(i)附接到其终端并且可与扫描器手柄的连接器接合的连接器构件和(ii)邻近连接器的套环。 塑料保持构件可定位在套环上并且包括在保持构件的一端处形成套环的内部阶梯孔,用于将信号电缆的套环部分接合在孔内。 保持构件的可手动锁定的卡口或螺纹部分形成在相对的端部处,并与扫描器的内表面配合,以将保持构件固定到壳体上。 当保持构件固定在扫描仪的手柄上时,信号连接器与扫描仪的连接器电连接。