System and method for distributing wireless communication signals over metropolitan telecommunication networks
CA 2508460 C · Owner: Yeung, Simon P. S. · Inventors: Yeung, Simon P. S.; Uyehara, Lance K.; Young, Robin Y. K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for transporting wireless communication signals between a base station hotel and , remote cell sites with separately digitized RF carrier signals is provided. Separately , digitized carriers are transmitted over a digital network between the hotel and the remote , sites, remaining in digital format until reaching terminal antenna units. At the antenna units, downlink digital signals are converted to analog RF signals and transmitted while uplink , analog signals are received and converted to digital signals. A corresponding system , comprising a base station hotel at least one remote site, and a digital data network , connecting the hotel to the remote site is provided. The …
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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 October 14, 2003 and granted September 24, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 14, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 14, 2025.
- 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.