Programmable frequency divider
CA 2010723 C · Owner: Nihon Musen Kabushiki Kaisha · Inventors: Yamashita, Kazuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A programmable frequency divider for dividing the frequency of a supplied high-frequency signal directly into a lower frequency includes a plurality of 2-scale-factor prescalers or programmable frequency divider units each capable of being switched between divide-by-2 and divide-by-3 modes. The 2-scale-factor prescalers are connected in cascade for producing an output signal which is frequency-divided at one of multiple division ratios at a time.
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 February 22, 1990 and granted November 30, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 22, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 22, 2012.
- 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.