Serial communications controller
CA 1281434 C · Owner: Korpusik, John · Inventors: Marzucco, Teresa; Korpusik, John; Martin, Patricia A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A serial communications controller, adapted for transfer of data to memory in a direct memory access interrupt, generates a status word for each frame of data. To allow for uninterrupted transfer of data to memory from frame to frame, the status words are stored in a FIFO along with word counts corresponding to the frames to allow for subsequent identification of the addresses to which the data frames are assigned.
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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 March 12, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 12, 2008.
- 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.