System for improving performance of compression and decompression algorithms in a telecommunication system
CA 2478339 A1 · Owner: Ciena Corporation · Inventors: Mes, Ian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a telecommunications system, an arithmetic logic unit (ALU) (100) that receives an input signal. The input signal includes a digital signal representative of an analog signal. The ALU (100) selectively performs compression and decompression on the digital signal. The ALU comprises the following elements. A standard ALU component (102) performs standard ALU operations on the input signal. An encoding unit (104) selectively performs compression on the digital signal. A decoding unit (106) selectively performs decompression on the digital signal. An instruction decoder (110) receives and decodes an ALU instruction. An output selector (108) selects a result from one of the standard …
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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 March 11, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 11, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 11, 2025.
- 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.