A differential bipolar stray-insensitive pipelined digital-to-analog converter
CA 2327644 A1 · Owner: Moussavi, Mohsen · Inventors: Moussavi, Mohsen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Stray-insensitive pipelined Digital-to-Analog Converters (DACs) can be implemented without an opamp in each stage. The quasi-passive circuit designed in this method dissipates less power, runs faster has better ac-, curacy, and takes less area than the conventional strayinsensitive architecture. A pipelined DAC designed with a differential bipolar architecture achieves close to 13 bits of linearity at 17.664 MSps conversion rate which makes, it suitable for full-rate downstream DSL signals. The converter is designed in a 0.6-µ double-poly CMOS technology and dissipates 43 mW.
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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 December 4, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 4, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 4, 2022.
- 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.