Multi-level symbol synchronizer
CA 2107769 C · Owner: Motorola, Inc. · Inventors: Erhart, Richard Alexander; Mittel, James Gregory; Willard, David Frank
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A symbol synchronizer for a communication receiver receiving four level (NRZ) data signals includes a reference clock generator for generating a reference clock signal having a predetermined time period a state change detector for, detecting state changes occurring within the received four level (NRZ) data signals over the predetermined time period to enable selecting a time location value corresponding to the detected state change and a magnitude detector for generating, magnitude values representing the magnitude of the received four level (NRZ) data signals over the predetermined time period an accumulator for accumulating a, total time location/magnitude value for the time …
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 February 20, 1992 and granted May 4, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 20, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 20, 2014.
- 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.