Method of detecting a paging channel in a multifrequency radio pager network
CA 2076721 C · Owner: Matsumoto, Mariko · Inventors: Matsumoto, Mariko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In order to detect a paging channel assigned to a pager in a shorter time in a frequency divided pager network system, a plurality of paging channels given priorities in channel searching are separately assigned to the paging areas in a manner wherein reuse in adjacent paging areas is avoided. A frequency subset number and frequency subset indicators related thereto, are stored in a memory in a pager. Subsequently paging channels available in the system are allocated to the frequency subset indicators. Further a, relationship between the frequency subset indicators and the corresponding paging channels is arranged in the form of a table and then stored in the pager. Then the paging …
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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 24, 1992 and granted March 16, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 24, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 24, 2014.
- 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
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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.