Signal processing device having pll circuits
CA 2131104 C · Owner: Tamamura, Masaya · Inventors: Tamamura, Masaya; Shiotsu, Shinichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A signal processing device includes a first PLL circuit operating in synchronism with a serial input data signal, and a second PLL circuit operating in synchronism with an external reference clock signal. The oscillation frequency of the first PLL circuit is controlled by the second PLL circuit.
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 30, 1994 and granted February 23, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 30, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 30, 2016.
- 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.