Data communication apparatus
CA 2241967 C · Owner: Panasonic Communications Co. Ltd. · Inventors: Noguchi, Yoshihiro; Takagi, Genzou
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The time required for data communication equipment to make communication handshaking is reduced by executing a pre-communication procedure based on prestored communication parameters. To be concrete the modulation mode, communication protocol MODEM parameters, optimum MODEM training time etc. set through four communication channels; a communication channel for selecting a modulation mode, communication channel for probing a line communication , channel for training MODEM and communication channel for setting MODEM parameters are stored at every destination communication equipment and the subsequent communication is performed based on the stored information.
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 October 28, 1997 and granted July 31, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 28, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 28, 2019.
- 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.