Cellular communication system and method providing improved handoff capability
CA 2183293 C · Owner: Nortel Networks Corporation · Inventors: Hanley, Donald V.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cellular communication system and method providing improved handoff capability which reduces muting during handoffs. During handoffs, the system simultaneously monitors received signals from both the serving cellsite on a first channel and the target cellsite on a second channel and outputs the received signal containing an information signal. Additionally, the system simultaneously transmits an information signal to a mobile unit via the serving cellsite on a first channel and via the target cellsite on a second channel.
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 August 14, 1996 and granted July 24, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 14, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 14, 2018.
- 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.