Automotive gauge system using a power line carrier
CA 2532639 C · Owner: Instrument Systems Inc. · Inventors: Stevenson, W. Timothy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A data display system including a plurality of data sources; a data transmitter coupled to the data sources and to a transmission network comprising a power line; wherein the data transmitter comprises means for modulating the data as a frequency modulated carrier and means for transmitting the carrier over the power line; and a plurality of gauges each having a display and coupled to the power line and a data receiver comprising means for demodulating the carrier and means for translating the data to the display. The gauges are coupled to the data transmitter only by the power line disregarding any ground connections, and the power line provides power to the gauges and the data transmitter.
Read the whole patent
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 January 11, 2006 and granted April 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 11, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.