Oscillator module and communications device using the same
CA 2274335 C · Owner: Ieki, Tsutomu · Inventors: Ieki, Tsutomu; Hirano, Yasuhiko; Tanaka, Hiroaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An oscillator module in which external wires can be reduced, and characteristics of a resonator and oscillation margin can be measured. A circuit portion for oscillation and a two-port surface acoustic wave resonator are sealed in a package, one of the terminals of the two-port surface acoustic wave resonator is connected inside the package to an input terminal of the circuit portion for oscillation. The number of external terminals provided to the package can be reduced, enabling the oscillator module to be made small-scale and at lower cost. Furthermore it is possible to, measure the insertion loss and resonant frequency of the two-port surface acoustic wave resonator and 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 June 11, 1999 and granted September 24, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 11, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 11, 2021.
- 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.