Patent Yard Sign in
Expired Canadian patentCanada

Apparatus and method for limiting data bursts in atm switch utilizing shared bus

CA 2361655 C · Owner: Roy, Subhash C. · Inventors: Roy, Subhash C.; Parrella, Eugene L.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

An ATM switch system including input and output ports with associated buffers (12a, 14c, 16a, 12b, 14b, 16b), source traffic control system including shared bus coupling the ports, and arbiter controlling the transfer of data. The arbiter monitors the internal destination addresses of the ATM cells and , increments a counter (32a, 32b) associated with the destination port when the destination corresponds, and decrements other counters which do not correspond to the destination. Bursts for a particular output port cause the count of the associated counter to grow large; whereas long breaks cause the count to drop. The counts are compared to a high threshold (125) which alerts arbiter …

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 February 11, 2000 and granted April 29, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 11, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 11, 2022.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 11, 2000
GrantedApril 29, 2003
Term endedFebruary 11, 2020
Patent numberCA 2361655 C
Classification (IPC)H04Q11/04 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedFeb 11, 2000Patent grantedApril 29, 2003Term endedFeb 11, 2020

Sources & verification

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