Smart control and sensor devices single wire bus multiplex system
CA 1331646 C · Owner: Chrysler Motors Corporation · Inventors: Wroblewski, Thomas R.; Miesterfeld, Frederick O. R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Control of a plurality of relay drivers by smart control devices and the continuous status monitoring of a plurality of switches and associated smart sensor wherein each smart control device and each smart sensor is connected at a separate single point on a single-wire bus, are affected by a smart control and sensor device multiplex system. The system employs a microcomputer and a driver and receiver circuit for developing a particular offset square wave pulse train which is placed on the bus to provide power and control voltage signals to the plurality of smart contro? devices and smart sensors. The smart control devices contain circuits that respond to the wave form in a manner that …
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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 August 23, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 23, 2011.
- 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.