Device driver and adapter binding technique
CA 1233262 A · Owner: International Business Machines Corporation · Inventors: Advani, Hira; Springen, Nancy L.; Loucks, Larry K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An operating system in a digital computer environment is run as a virtual machine on a virtual resource manager. In order to provide a more dynamic environment for the operating system linkages are made between the operating system device drivers and the corresponding real and virtual devices of the virtual resource manager. This is accomplished by assigning a "token" to the virtual resource manager. A device dependent information file corresponding to the device is created. This file contains adapter dependent information including a hardware port address for the physical device. The "token" is placed in the operating system device driver at the time it is initiated. When the operating …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted February 23, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 23, 2005.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.