Programmable logic array system incorporating josephson devices
CA 1162255 A · Owner: International Business Machines Corporation · Inventors: Faris, Sadeg M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Programmable Logic Array (PLA) system which utilizes Josephson devices and the noninverting capabilities of these devices is disclosed. The disclosed PLA system includes a personalized Read Only Memory (ROM) which is adapted to store the applied input signals as well as the output signals which are a logic function of the input signals. As soon as outputs from the ROM are available an, interface circuit which may be timed or untimed inverting or noninverting provides output signals which can be utilized to drive other logic circuits or to act as inputs to another personalized Read Only Memory (ROM). The latter provides another logic function of the inputs at its outputs. Again the outputs …
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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 14, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 14, 2001.
- 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.