Line probing mechanism
CA 2012913 C · Owner: Motorola, Inc. · Inventors: Dong, Ping; Eyuboglu, Vedat M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A modem for receiving data sent from a remote device over a communication channel by using a single carrier modulated signal the modem including a receiver for receiving the modulated signal and for receiving a line probing signal sent by the remote device over the channel, the receiver being capable of receiving the modulated signal over any one of a plurality of frequency bands; a line probing processor for, measuring characteristics of the channel based upon the received line probing signal; and a selector for selecting one of the plurality of frequency bands said selection being based upon the measured characteristics of the channel, said selected frequency band to be used for receiving …
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 March 23, 1990 and granted July 11, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 23, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 23, 2012.
- 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.