Method and apparatus for controlling a fractional-n synthesizer in a time division multiple access system
CA 2215740 C · Owner: Kovarik, Thomas J. · Inventors: Daniel, Christopher John; Kovarik, Thomas J.; Swenson, Robert Scott
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a Time Division Multiple Access System multiple offset values are provided , to a divider control circuit (213) of a fractional-N synthesizer (200) by utilizing a microprocessor (305). The microprocessor (305) utilizes timeslot information provided to it by a timeslot selector (301) frequency information , provided to it by a frequency selector (303) and a read-only memory (307) to , provide offset values to the divider control circuit (213).
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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 November 6, 1996 and granted April 3, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 6, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 6, 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.