System and process for controlling input and output devices by f

Details System and process for controlling input and output devices by f System and process for controlling input and output devices by f

1998-04-24

2000-12-26

Shin, Christopher B.

Electrical computers and digital processing systems: multicomput

Computer-to-computer data routing

Least weight routing

709 12, G06F 1300

Patent

active

061674567

ABSTRACT:
The present invention describes a system and process for controlling input and output devices, in particular scanners or cameras, through application programs, where each input or output device can communicate with every application without modification of or addition to the application program and/or the input or output device software. For this, the input or output device is announced to the operating system by way of the application program as a file. The input or output device is started by means of the application program's "Open file" function. The input or output device is announced to the operating system as a drive. A data management function takes over the communication with the driver software for the input and output as well as for the preparation of the required image formats. In this way the data access functions of the application for enabling the reading of data from files are eliminated and, in addition, its own functions for accessing input or output devices through a special interface.

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Marc J. Rochkind, Advanced UNIX Programming, 1985, pp. 2-4, 89-90.

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