Hello, we are interested in a conceptual approach to solving the problem of usb-rfid reader operation in keyboard emulation mode in a web application, the bottom line is that data from touching a card with an rfid reader comes to any active text field in a set of 10 simple numbers.
The task: in order that, regardless of the focus on any text field, to isolate the data id card code and send for further processing. Also there is a task not to interfere with user input in any field.
Note that the information received from the reader has several distinctive properties from user input: the time to output data between 1 and the next digit takes no more than 18 milliseconds. Ie people can not quickly dial. Thank.
