Driver interface for data capture systems
An interface enables data capture systems, such as electro-optical readers, RFID readers, and imagers operative for capturing transaction data to communicate with a plurality of open applications executed by a host computer. A queue arranges the transaction data processed by one of the open applications, and management data processed by another of the open applications. A queue handler transmits the processed transaction data and the processed management data from the queue to each data capture system without closing any of the open applications.
1. An interface for enabling a plurality of data capture systems, each operative for capturing transaction data, to respectively communicate with a plurality of open applications executed by a host computer, comprising:
a queue for arranging the transaction data processed by one of the open applications, and management data processed by another of the open applications;
a device list for listing all the data capture systems;
a device handler for managing the device list and identifying the data capture system to which the processed transaction data and the processed management data are to be transmitted; and
a queue handler for transmitting the processed transaction data and the processed management data from the queue to the identified data capture system without closing any of the open applications.
2. The interface of claim 1 , wherein the queue handler is operative for managing the queue to prioritize the processed transaction data and the processed management data.
3. The interface of claim 2 , wherein the processed transaction data and the processed management data are prioritized in a first-in/first-out manner.
4. The interface of claim 1 , and a data capture handler for routing the captured transaction data to at least one of the open applications.
5. The interface of claim 1 , and a Windows Management Instrumentation (WMJ) plug-in for enabling at least one of the data capture systems to communicate with an application executed by a Windows operating system.
6. A communications arrangement, comprising:
a host computer for executing a plurality of open applications;
a plurality of data capture systems each operative for capturing transaction data and movable relative to the host computer; and
an interface for enabling each data capture system to respectively communicate with the plurality of open applications, the interface including a queue for arranging the transaction data processed by one of the open applications, and management data processed by another of the open applications, a device list for listing all the data capture systems, a device handler for managing the device list and identifying the data capture system to which the processed transaction data and the processed management data are to be transmitted, and a queue handler for transmitting the processed transaction data and the processed management data from the queue to the identified data capture system without closing any of the open applications.
7. The arrangement of claim 6 , wherein the host computer is a transaction terminal, and wherein at least one of the data capture systems is an electro optical reader for reading indicia.
8. The arrangement of claim 7 , wherein the reader is operatively connected to the transaction terminal via the interface by one of a wired and a wireless link.
9. The arrangement of claim 7 , wherein the reader is one of a laser scanner for scanning the indicia with a laser beam, and an imager for capturing an image of the indicia.
10. The arrangement of claim 7 , wherein the at least one data capture system is a handheld device movable relative to the terminal.
11. The arrangement of claim 6 , wherein at least one of the data capture systems is a radio frequency identification (RFID) device.
12. The arrangement of claim 6 , wherein the queue handler is operative for managing the queue to prioritize the processed transaction data and the processed management data.
13. The arrangement of claim 12 , wherein the processed transaction data and the processed management data are prioritized in a first-in/first-out manner.
14. The arrangement of claim 6 , wherein the interface includes a data capture handler for routing the captured transaction data to at least one of the open applications.
15. The arrangement of claim 6 , wherein the interface includes a Windows Management Instrumentation (WMI) plug-in for enabling at least one of the data capture systems to communicate with an application executed by a Windows operating system.
16. A method of enabling a plurality of data capture systems each operative for capturing transaction data to respectively communicate with a plurality of open applications executed by a host computer, comprising the steps of:
arranging the transaction data processed by one of the open applications, and management data processed by another of the open applications, in a queue;
listing all the data capture systems in a device list;
managing the device list and identifying the data capture system to which the processed transaction data and the processed management data are to be transmitted; and
transmitting the processed transaction data and the processed management data from the queue to the identified data capture system without closing any of the open applications.
17. The method of claim 16 , and the step of managing the queue to prioritize the processed transaction data and the processed management data.
18. The method of claim 17 , and the step of prioritizing the processed transaction data and the processed management data in a first-in/first-out manner.
19. The method of claim 16 , and the step of routing the captured transaction data to at least one of the open applications.
20. The method of claim 16 , and the step of enabling at least one of the data capture systems to communicate with an application executed by a Windows operating system.
21. A communications method, comprising the steps of:
executing a plurality of open applications;
capturing transaction data with a plurality of movable data capture systems; and
enabling each data capture system to respectively communicate with the plurality of open applications, including the steps of arranging the transaction data processed by one of the open applications, and management data processed by another of the open applications, in a queue, listing all the data capture systems in a device list, managing the device list and identifying the data capture system to which the processed transaction data and the processed management data are to be transmitted, and transmitting the processed transaction data and the processed management data from the queue to the identified data capture system without closing any of the open applications.
22. The method of claim 21 , and the step of managing the queue to prioritize the processed transaction data and the processed management data.
23. The method of claim 22 , and the step of prioritizing the processed transaction data and the processed management data in a first-in/first-out manner.
24. The method of claim 21 , and the step of routing the captured transaction data to at least one of the open applications.
25. The method of claim 21 , and the step of enabling at least one of the data capture Systems to communicate with an application executed by a Windows operating system.