Fast joint detection
CA 2445956 A1 · Owner: Interdigital Technology Corporation · Inventors: Zeira, Ariela; Pan, Jung-Lin; De, Parthapratim
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
K data signals are transmitted over a shared spectrum in a code division access communication system. A combined signal is received and sampled over the shared spectrum (48). The combined signal has the K transmitted data signals (48). A combined channel response matrix is produced (49) using the codes and impulse responses of the K transmitted data signals. A block column of a combined channel correlation matrix is determined using the combined channel response matrix (50). Each block entry of the block column is a K by K matrix (51). At each frequency point k a K by K matrix is determined by , taking the Fourier transform of the block entries of the block column (52). An inverse …
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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 April 26, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 26, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 26, 2024.
- 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.