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Expired Canadian patentCanada

Method and apparatus for an adaptive de-jitter buffer

CA 2691762 C · Owner: Black, Peter John · Inventors: Spindola, Serafin Diaz; Kapoor, Rohit; Yavuz, Mehmet

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Abstract From the Canadian patent

Adaptive De-Jitter Buffer for Voice over IP (VoIP) for packet switch communications. The de-jitter buffer methods and apparatus presented avoid playback of underflows while balancing end-to-end delay. In one example the de-jitter buffer is recalculated at the beginning of each talkspurt. In another example talkspurt packets are compressed upon receipt of all remaining packets.

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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 August 30, 2005 and granted April 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 30, 2025.
  • 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.
FiledAugust 30, 2005
GrantedApril 3, 2012
Term endedAugust 30, 2025
Patent numberCA 2691762 C
Classification (IPC)H04L12/00 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedAug 30, 2005Patent grantedApril 3, 2012Term endedAug 30, 2025

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