Digital modulation employing single sideband with suppressed carrier
CA 2308064 A1 · Owner: Walker, Harold · Inventors: Walker, Harold
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of transmitting "biphase" encoded digital signals comprised of the steps of receiving one of a multiplicity of input data bits wherein each data , bit is characterized by a temporal data bit length (12) a temporal bit center , (T3) and a temporal state indicative of a logical 1 or 0 and generating an , encoded digital baseband signal characterized by a temporal state indicate of a logical state therein the encoded digital baseband signal changes its temporal state according to whether the one input data bit changes its temporal state at a time prior to (T1 or 6) or after (T2 or 7) the temporal bit center (T3). A single sideband with this coding is generated independently by …
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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 30, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 30, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 30, 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.