The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 21, 1997
Filed:
Jun. 07, 1995
Applicant:
Inventors:
Mark A Libucha, Hilliard, OH (US);
David J Crone, Columbus, OH (US);
Assignee:
CompuServe Incorporated, Columbus, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05B / ; G05B / ;
U.S. Cl.
CPC ...
364138 ; 395500 ;
Abstract
The X.25 device driver allows an X.25 card to be shared by workstations on a local area network. The approach used for the X.25 device driver may be used for sharing other devices on a local area network as well. The device driver for the device to be shared is implemented as a file system so that the device's location is hidden from application programs. Because the device driver is a file system driver, applications may use standard system calls, rather than device specific calls, to access the device.