Polling network communication system having transmission request registration means
CA 1323405 C · Owner: Amemiya, Shigeo · Inventors: Amemiya, Shigeo; Soejima, Tetsuo; Shinomiya, Tomohiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a sequential polling type communication network system including a master station, a first channel a, second channel, and at least two slave stations the, master station includes request registration units for registering data transmission requests from slave stations during a data transmission by another slave station, and an interrupt polling unit for polling the slave station which has issued the data transmission request after completion of the data transmission or completion of a polling of a slave station and the, slave station includes a unit for responding to a polling during the data transmission, and transmits a data transmission request when data to be transmitted exists, and …
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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 October 19, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 19, 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
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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.