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    • 4. 发明申请
    • BAR CODE SYMBOL READING DEVICE HAVING INTELLIGENT DATA COMMUNICATION INTERFACE TO A HOST SYSTEM
    • 具有智能数据通信接口到主机系统的条形码符号读取装置
    • WO03024190A9
    • 2003-12-18
    • PCT/US0230061
    • 2002-09-23
    • METROLOGIC INSTR INCZHU XUEWENJI KAIYANG AILIXU CONGWEI
    • ZHU XUEWENJI KAIYANG AILIXU CONGWEI
    • G06K7/10G06K19/06
    • G06K7/10881G06K17/0022
    • An improved bar code symbol reading methodology, device, and system includes a bar code symbol reading engine (151') that reads bar code symbols affixed to objects proximate thereto and produce symbol character data representative of such bar code symbols. A data transmission subsystem (523), operably coupled to the bar code reading engine, communicates such symbol character data to the communication interface of a host system over a communication link therebetween. The data transmission subsystem (523) implements a plurality of different communication interfaces (551A, 551B). During an interface configuration mode of operation, the data transmission subsystem (523) automatically cycles through at least one of the plurality of different communication interfaces whereby, for a given communication interface, the data transmission subsystem selectively activates the given communication interface - while disabling the other communication interfaces, and tests the communication link between the given communication interface and the host system to ascertain if the given communication interface corresponds to the communication interface of the host system.
    • 改进的条形码符号读取方法,设备和系统包括条形码符号读取引擎(151'),其读取附加到其上的对象的条形码符号,并产生表示这种条形码符号的符号字符数据。 可操作地耦合到条形码读取引擎的数据传输子系统(523)通过其间的通信链路将这种符号字符数据传送到主机系统的通信接口。 数据传输子系统(523)实现多个不同的通信接口(551A,551B)。 在接口配置操作模式期间,数据传输子系统(523)自动循环多个不同通信接口中的至少一个,由此,对于给定的通信接口,数据传输子系统选择性地激活给定的通信接口,同时禁用 其他通信接口,并测试给定通信接口和主机系统之间的通信链路,以确定给定的通信接口是否对应于主机系统的通信接口。