Metrologic Instruments, Inc.

Kai Ji

Congwei Xu

Xuewen Zhu

Aili Yang

Xiaoxun Zhu

C Harry Knowles

Ka Man Au

Mark C Schmidt

Garrett K Russell

Liang Liu

Wuqing Zhang

The wireless PDT of the present invention employs a 'display-on bottom' design which places the unit perfectly centered in the hand of the operator, allowing for the best possible viewing as well as providing comfortable single-handed operation. The high-resolution LCD display allows the PCT to show sharp, clear bitmap images while supporting all Windows-recognized font types and sizes. With the auto back-lit feature, the brightness adjusts automatically making the screen easy to read in all light conditions. The PDT is designed for support within the download/charger cradle of a base station which interfaces with a host system using either USB or RS232 interface. Two standard 'AA' or rechargeable Li-Ion batteries provide more than 100 hours of operation. In addition, the PDT comes standard with 2 MB of RAM providing enough memory to store over 100,000 records. Applications for the PDT can be developed using a novel integrated development and deployment environment (IDE) which contains an easy-to-use Windows-based application generator and download utilities. For advanced programming, developers can choose to write software using an advanced application generator or 'C' programming application generator which provides the developer with simple programming and fast setup. Further enhancements available in the application generator include drag and drop icons, time/datestamp, battery level indicator and variable fonts, giving the developer the ability to create custom screen layouts.

Wireless bar code symbol driven portable data terminal (PDT) system for running application programs on an operating system emulated on a virtual machine

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 method of developing an application program for running on a wireless portable data terminal (PDT), comprising the steps of (a) during the development of an application program for running on a wireless PDT supported by a first operating system, generating user input and documents using development programs running on a developer computer system supported by a second operating system; (b) developing the application program on the developer computer system into a final application program expressed in the form of binary executable code designed for execution on the first operating system loaded onto the wireless PDT; (c) downloading the binary executable code of the final application program onto the wireless PDT; and (d) running the final application program in binary executable code upon the first operating system loaded onto the wireless PDT.

Method of developing an application program for running on a wireless portable data terminal (PDT)

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

Wireless bar code symbol driven portable data terminal (PDT) system adapted for single handed operation

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.

Growing community of inventors

Suzhou, China

Kai Ji