Digital imaging-based system having intelligent data communication interface to a host system
First Claim
1. A digital imaging-based system for reading code symbols affixed to objects, comprising:
- 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; and
a data transmission subsystem, operably coupled to said imaging-based code symbol reading subsystem, for communicating said symbol character data to a communication interface of a host system over a communication link between said data transmission subsystem and said host system;
wherein said data transmission subsystem implements a plurality of different communication interfaces, andwherein, during an interface configuration mode of operation, said data transmission subsystem automatically cycles through at least one of said plurality of different communication interfaces,whereby, for a given communication interface, said 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 said host system.
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Abstract
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.
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Citations
20 Claims
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1. A digital imaging-based system for reading code symbols affixed to objects, comprising:
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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; and a data transmission subsystem, operably coupled to said imaging-based code symbol reading subsystem, for communicating said symbol character data to a communication interface of a host system over a communication link between said data transmission subsystem and said host system; wherein said data transmission subsystem implements a plurality of different communication interfaces, and wherein, during an interface configuration mode of operation, said data transmission subsystem automatically cycles through at least one of said plurality of different communication interfaces, whereby, for a given communication interface, said 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 said host system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20)
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14. A digital imaging-based system for reading code symbols affixed to objects, comprising:
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an imaging-based code symbol reading subsystem for capturing and processing digital images of code symbols affixed to objects, and reading the code symbols and producing symbol character data representative of read code symbols; and a data transmission subsystem, operably coupled to the imaging-based code symbol reading subsystem, for communicating the symbol character data to a communication interface of a host system over a communication link between said data transmission subsystem and said host system; wherein the data transmission subsystem implements a plurality of different communication interfaces, and wherein, during an interface configuration mode of operation, the data transmission subsystem 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 said host system; and wherein said data transmission subsystem maintains a status register that stores information related to said establishment of a communication link between said data transmission subsystem and said host system over a specific interface implemented by the data transmission subsystem, and wherein, during the interface configuration mode of operation, the data transmission subsystem reads the information stored in the status register to ascertain if the given communication interface corresponds to the communication interface of said host system.
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Specification