Asymmetrical forward/reverse transmission bandwidth
CA 2343170 A1 · Owner: Ozluturk, Fatih · Inventors: Ozluturk, Fatih
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wireless communications system employs code-division multiple access information transmission techniques where the uplink and downlink transmission bandwidths are unequal. The higher bandwidth is an integer multiple of the lower, bandwidth. The present system requires a base station and a subscriber unit to have, two pseudo-random code generators which can be clocked separately. Alignment of, the uplink and downlink pseudo-random spreading codes is achieved by truncating, the code sequence for the lower speed link at the conclusion of a complete code, sequence for the higher speed link.
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 10, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 10, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 10, 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.