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Expired Canadian patentCanada

Parallel backplane physical layer interface with scalable data bandwidth

CA 2270094 C · Owner: Kraml, Mark H. · Inventors: Kraml, Mark H.; Kim, Chang H.

CIPO record

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Abstract From the Canadian patent

An interface between a parallel backplane bus of a physical layer of a communication device and a higher layer of the device is provided in a manner compatible with a serial bus architecture such as IEEE 1394. The interface includes, a parallel backplane physical layer controller having multiple receive data lines for, receiving data from the backplane bus and multiple transmit data lines for, transmitting data to the backplane bus. A link layer controller is coupled to the, parallel backplane physical layer controller and communicates with the , parallel, backplane physical layer controller over a data bus. The parallel backplane physical, layer controller can provide an effective data …

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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 April 26, 1999 and granted October 1, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 26, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 26, 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.
FiledApril 26, 1999
GrantedOctober 1, 2002
Term endedApril 26, 2019
Patent numberCA 2270094 C
Classification (IPC)H04L29/10 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedApril 26, 1999Patent grantedOct 1, 2002Term endedApril 26, 2019

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.