Data processing terminal which determines a type of an external

Details Data processing terminal which determines a type of an external Data processing terminal which determines a type of an external

1995-02-07

1999-05-04

Sheikh, Ayaz R.

395882, G06F 1300

Patent

active

059013290

ABSTRACT:
A data processing terminal sends control commands to an external device to control the external device. The data processing terminal has a control command sending unit and an external device determining unit. The control command sending unit is used to send a control command to the external device. The external device determining unit is used to determine a type of the external device according to a response returned by the external device in response to the control command. Therefore, the data processing terminal is capable of determining the type of an external device such as a bar code reader connected thereto and of converting a control command in a predetermined format into one in another format, so that the data processing terminal can employ a single program to control bar code readers which use different command systems.

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