Metrologic Instruments, Inc.

Xuewen Zhu

Congwei Xu

Kai Ji

Aili Yang

A digital imaging-based system for reading code symbols affixed to objects, including an imaging-based code symbol reading subsystem for capturing and processing digital images of code symbols affixed to objects, and reading said code symbols and producing symbol character data representative of read code symbols. A data transmission subsystem, operably coupled to the imaging-based code symbol reading subsystem, communicates such symbol character data to the communication interface of a host system over a communication link therebetween. The data transmission subsystem implements a plurality of different communication interfaces, and thus is capable of interfacing to a variety of different host devices in an automatic and error free manner with minimal human involvement, thus providing significant advantages over the prior art code symbol reading systems and devices.

Digital imaging-based system having intelligent data communication interface to a host system

An improved bar code symbol reading methodology/device/system includes a bar code symbol reading engine that reads bar code symbols affixed to objects proximate thereto and 3roduces symbol character data representative of such bar code symbols. A data transmission subsystem, 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 there between. The data transmission subsystem implements a plurality of different communication interfaces.

Method of automatically establishing a data communication link between an optical code reading device and a host system having a data communication interface

A data transmission subsystem, 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 implements a plurality of different communication interfaces. During an interface configuration mode of operation, the data transmission subsystem is able to automatically configure itself such that its interface is suitable for communication to the communication interface of the host system. Moreover, the device is thus capable of interfacing to a variety of different host devices in an automatic and error free manner with minimal human involvement, thus providing significant advantages over the prior art bar code symbol reading devices.

Bar code symbol reading device having intelligent data communication interface to a host system

An improved bar code symbol reading device includes a data transmission subsystem, operably coupled to a bar code reading engine, that communicates symbol character data to the communication interface of a host system over a communication link therebetween. During an interface configuration mode, the data transmission subsystem automatically cycles though at least one of a plurality of different communication interfaces (implemented by the subsystem) to test if the given communication interface corresponds to the communication interface of the host system. If this test is successful, subsequent data communication between the bar code symbol reading device and the host system is enabled over the active communication interface. In this manner, the data transmission subsystem is able to automatically configure itself for communication to the host system, and is capable of interfacing to a variety of different host devices in an automatic and error free manner with minimal human involvement.

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Suzhou, China

Xuewen Zhu