Portable data processing device having an indicia reader and a
multi-tasking operating system capable of executing battery monitoring
instructions while concurrently executing application programs
    7.
    发明授权
    Portable data processing device having an indicia reader and a multi-tasking operating system capable of executing battery monitoring instructions while concurrently executing application programs 失效
    便携式数据处理装置具有标记读取器和能够在同时执行应用程序的同时执行电池监视指令的多任务操作系统

    公开(公告)号:US5892971A

    公开(公告)日:1999-04-06

    申请号:US448169

    申请日:1995-05-23

    摘要: A portable, hand-held data processing assembly of modular structure includes a base unit with a keyboard and a display screen. An indicia reader module is housed in a housing shell which is attachable to the base unit. The indicia reader module can contain a reflected light indicia reader for non-contact essentially instantaneous reading of bar codes of the like disposed in a spaced, non-contacting relationship to the assembly. The indicia reader module can also include a processor. Additionally, the base unit can include a battery for powering the hand-held data processing assembly. A data collection and communications module can include a stacked arrangement of a communications interface main circuit board, a radio and a laser scanner assembly which are housed in a housing shell attachable to the base unit. A support frame and a plurality of ground planes in the sandwiched main circuit board and a routing circuit board form an RF cage for shielding RF interference which may be generated by the radio. Also disclosed is a method for reducing the operational power consumption requirements of laser bar code scanners by analyzing reflected laser light in order to determine the presence of optically readable information sets. In any described embodiment, the hand-held data processing assembly can include a multitasking operating system. The multitasking operating system can execute battery monitoring instructions and diagnostic routines while concurrently executing application programs.

    摘要翻译: 一种模块化结构的便携式手持式数据处理组件包括具有键盘和显示屏的基座单元。 标记读取器模块容纳在可附接到基座单元的壳体壳体中。 标记读取器模块可以包含反射光标记读取器,用于非接触式基本上瞬时读取与组件间隔开的非接触关系的条形码。 标记读取器模块还可以包括处理器。 此外,基本单元可以包括用于为手持数据处理组件供电的电池。 数据收集和通信模块可以包括通信接口主电路板,无线电和激光扫描器组件的堆叠布置,其被收纳在可附接到基座单元的壳体壳体中。 在夹层主电路板和布线电路板中的支撑框架和多个接地平面形成用于屏蔽由无线电产生的RF干扰的RF笼。 还公开了一种通过分析反射的激光来降低激光条形码扫描器的操作功耗要求的方法,以便确定光学可读信息集的存在。 在任何描述的实施例中,手持数据处理组件可以包括多任务操作系统。 多任务操作系统可以执行电池监控指令和诊断程序,同时执行应用程序。

    Hand-held instant bar code reader system with automated focus based on
distance measurements
    10.
    发明授权
    Hand-held instant bar code reader system with automated focus based on distance measurements 失效
    手持即时条码阅读器系统,具有基于距离测量的自动对焦

    公开(公告)号:US4877949A

    公开(公告)日:1989-10-31

    申请号:US894689

    申请日:1986-08-08

    摘要: In the instant reading of bar codes by flash illumination, the disclosed system automatically adapts to bar code configurations of greater extent and/or curvature, for example by measuring distance to one or more points on the bar code and adjusting a lens barrel, and/or by selecting from multiple image paths through a lens system. Plural illumination sources may be used to enhance the uniformity of the reflected bar code image, may be flashed jointly and/or in rapid sequence, and may have flash durations individually adapted to respective segments of a bar code for optimum sensitivity and signal to noise ratio. One or a plurality of reflected light sensors may control integration time of a bar code image sensor, for example during sequential activation of plural illumination sources. Marker light beams may originate in the vicinity of the bar code image sensor and be projected through the optics to produce light spots on the bar code label precisely delineating the image sensor field of view.

    摘要翻译: 在通过闪光照明立即读取条形码时,所公开的系统自动地适应更大程度和/或曲率的条形码配置,例如通过测量到条形码上的一个或多个点的距离并调整透镜镜筒,和/ 或者通过透镜系统从多个图像路径中选择。 可以使用多个照明源来提高反射条形码图像的均匀性,可以共同闪烁和/或以快速顺序闪烁,并且可以具有单独适应于条形码的各个段的闪光持续时间,以获得最佳灵敏度和信噪比 。 一个或多个反射光传感器可以控制条形码图像传感器的积分时间,例如在多个照明源的顺序激活期间。 标记光束可能起源于条形码图像传感器附近,并通过光学器件投影,以在条形码标签上产生精确描绘图像传感器视场的光斑。