System of disk device selector circuits for disk controller
CA 1324829 C · Owner: Kazama, Kouji · Inventors: Kazama, Kouji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system of disk device selector circuits for a disk controller, which is provided for the disk controller to which different types of plural magnetic disk devices are connected via common control signal lines and each of the magnetic disk devices, for selecting one out of the different types of the disk devices by means of a selection controlling circuit provided in the disk controller. Each of the magnetic disk devices is provided with a response signal outputting circuit whereby a response signal indicating that the device has been selected is output when the disk device selected by the selection controlling circuit of the controller is the device itself. The response signal is received …
Read the whole patent
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 November 30, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 30, 2010.
- 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.