Component signal sampling circuit and reproducing circuit
CA 2067493 C · Owner: Okazaki, Takeshi · Inventors: Okazaki, Takeshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A component signal sampling circuit and reproducing circuit comprising a .DELTA.t delay circuit (5) for delaying a phase of a first analog component signal (I1) by a time .DELTA.t = (n-1)/(2fs); a first A\D converter (1) for sampling an output of the .DELTA.t delay circuit (5) by a clock of a sampling frequency fs, and for generating first digital data (O1); a 1/n frequency division circuit (4) for frequency dividing the clock of the sampling frequency fs by n (n is a positive integer other than 1); and a second A/D converter (2) for sampling a second analog component signal (I2) having the same phase as the first analog component signal (I1) by an output clock fs/n from the 1/n frequency …
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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 9, 1991 and granted June 30, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 9, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 9, 2013.
- 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.