Patent Yard Sign in
Expired Canadian patentCanada

Method for updating singular value decomposition of a transfer matrix

CA 2490969 C · Owner: Her Majesty In Right Of Canada As Represented By The Minister Of Industry, Through The Communications Research Centre Canada · Inventors: Willink, Tricia J.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

A method is disclosed for adaptively updating full or partial singular value decomposition (SVD) of a transfer matrix. The method employs orthogonal projections of known output and input vectors onto initial estimates of left and right singular vectors to compute corrections to the initial estimates of the singular vectors and singular values and adaptively generate updated estimates thereof. The method can be used for MIMO systems including system of wireless MIMO communications employing adaptive transmitter and V- BLAST techniques.

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 December 22, 2004 and granted June 17, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 22, 2024.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 22, 2004
GrantedJune 17, 2014
Term endedDecember 22, 2024
Patent numberCA 2490969 C
Classification (IPC)G06F17/16 +1 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedDec 22, 2004Patent grantedJune 17, 2014Term endedDec 22, 2024

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.