A process and device to measure the signal quality of a digital information transmission system
CA 2287642 C · Owner: Bach, Roland · Inventors: Hoyer, Wolfgang; Bach, Roland; Dollinger, Helmut
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The process to measure the signal quality of a digital information transmission system using a scanning device with adjustable direct current threshold can determine a signal parameter for the signal quality (Q-factor) which can determine the bit-rate from an unknown input signal and with its help a clock signal can be generated to scan the input signal with the scanning device. The device includes a detection device as well as a clock generator which is connected to the detection device and receives a pre-adjustment signal and which synchronises with the input signal over a phase locked loop with the scanning device through phase comparison. Process and device allow the monitoring of …
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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 October 27, 1999 and granted May 20, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 27, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 27, 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
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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.