Automatic framing in time division multiplexer
CA 1184324 A · Owner: General Datacomm Industries, Inc. · Inventors: Lambert, David A.; Hampton, Dean A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, A method and apparatus are described for automatically generating the frame that is used in a bit-interleaved time division multiplexer (TDM). The apparatus comprises a microprocessor, two random access memories in which are stored the channel select signals means for determining the transmission frequencies of each channel and a computer program which is stored in the memory of the computer for calculating the distribution of the channel select signals in the frame. With such a system, the frame can be reconfigured in about thirty seconds. Two random access memories are preferably used for the storage of the channel select signals. While the signals stored in one memory are being …
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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
- Granted March 19, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 19, 2002.
- 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.