Device and method for precoding data signals for pcm transmission
CA 2317545 A1 · Owner: Motorola, Inc. · Inventors: Humblet, Pierre A.; Eyuboglu, M. Vedat; Kim, Dae-Young
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device and method for precoding data signals for pulse code modulation (PCM) transmission including a transmitter (52) for transmitting a sequence of analog levels over analog channel to a quantization device wherein the analog , channel modifies the transmitted analog levels the transmitter (52) , comprising: a mapping device (150) for mapping data bits to be transmitted to a sequence of equivalence classes, wherein each equivalence class contains one or more constellation points; and a constellation point selector (152) interconnected to the mapping device (150) which selects a constellation point in each equivalence class to represent the data bits to be transmitted and which …
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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 November 13, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 13, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 13, 2020.
- 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.