Digital radio transmission system
CA 1280228 C · Owner: N.V. Philips Gloeilampenfabrieken · Inventors: Preller, Hans-Georg; Eizenhofer, Alfons
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
To increase the number of communication channels in a digital radio transmission system it is common practice to use different multiplexing methods. In both transmission directions of the digital radio transmission system the same combination of multiplexing methods is always used. To make economical use of the frequencies in a digital radio transmission system and reduce the costs for the sender in the base station (BS) and in the receiver of the mobile stations (MS) different combinations of multiplexing methods are applied for the grouping of communication channels in both transmission directions. In the base station (BS) the message to be transmitted is introduced into the channels …
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
- Granted February 12, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 12, 2008.
- 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.