P c m signal coding
CA 1293828 C · Owner: Faulkner, David W. · Inventors: Faulkner, David W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A signal having a non-uniform probability density is processed for transmission in pulse code modulated form. The signal is quantised using conventional methods and the quantised signal then coded using anon-sequential coding scheme in which binary codewords for the quantisation levels are chosen in accordance with the probability of the quantisation levels and number of ON bits in the codeword. Quantisation levels of higher probability are assigned codewords with few ON bits. An optical network embodying the present invention includes a central station 1 having a master clock source 3. The central station 1 is connected to a remote station 2 including signal processing means 6 arranged to …
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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 December 31, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 31, 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.