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Expired Canadian patentCanada

Multi-source/receiver data processing system comprising a communication bus

CA 1164968 A · Owner: N.V. Philips Gloeilampenfabrieken · Inventors: Vrielink, Hendrik

CIPO record

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Abstract From the Canadian patent

PHN. 9736 49, ABSTRACT:, A multi-source/receiver data processing system comprising a communication bus which consists of at least one transfer medium. Clock signal generators have different tolerances with respect to each other. In order to prevent sources and/or receivers having a slow clock signal generator from being excluded as rightful participants from an action concerning a communication there are pro-, vided means whereby it can be determined whether said bus is "ready" for executing said action. The means comprise first and second detecting means whereby it can be determined that the communication bus is "ready" during a first and a second period of time, respectively. When an …

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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 April 3, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 3, 2001.
  • 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 16, 1981
GrantedApril 3, 1984
Term endedApril 3, 2001
Patent numberCA 1164968 A
Classification (IPC)H04L5/14 +2 more

Timeline

Timeline From CIPO dates

1982198419861988199019921994199619982000Application filedApril 16, 1981Patent grantedApril 3, 1984Term endedApril 3, 2001

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