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Expired Canadian patentCanada

Gps receiver and method for processing gps signals

CA 2667764 C · Owner: Snaptrack, Inc. · Inventors: Krasner, Norman F.

CIPO record

Overview

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

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Abstract From the Canadian patent

A GPS mobile unit having a reduced power state includes: a receiver for receiving GPS signals from in view satellites; a memory to store a digital representation , of said GPS signals; a processor for processing the digital representation of the GPS , signals to provide at least one pseudorange information from the digital representation; , and a power management circuit. The power management circuit reduces power consumed by the GPS receiving section of the receiver of said GPS mobile unit from a , first rate consumed while receiving the GPS signals to a second rate after storing the , digital representation. The GPS receiving section downconverts GPS radiofrequency , signals to an …

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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 8, 1996 and granted July 31, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 8, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 8, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 8, 1996
GrantedJuly 31, 2012
Term endedOctober 8, 2016
Patent numberCA 2667764 C
Classification (IPC)G01S19/34 +1 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedOct 8, 1996Patent grantedJuly 31, 2012Term endedOct 8, 2016

Sources & verification

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