Multiplex extender for discrete i/o devices on a time division network
CA 2286598 A1 · Owner: Phillips, Timothy B. · Inventors: Phillips, Timothy B.; Burke, George E. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A multiplex extender (26) for permitting discrete I/O devices (34) to be multiplexed on a time division multiplexed control bus (10) includes a multiplex channel address decoder (78) to produce one or more output signals each being determined by the multiplex channel address most recently decoded a data disconnect switch (82) to either pass or block the flow of data between the TDM control bus (10) and the discrete I/O devices (34) in response to the output signal from the adress decoder (78) a data latch/repeater (86) to , selectively store data from the TDM control bus (10) or repeat previously stored data to the discrete I/O devices (34) and a branch line controller , (90) to …
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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
- Filed February 17, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 17, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 17, 2021.
- 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.