Transversal equalizer
CA 1258885 A · Owner: Nec Corporation · Inventors: Yoshimoto, Makoto; Noda, Seiichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides an equalizer having a combining circuit in which the number of inputs to the combining circuit does not increase beyond a predetermined number despite any increase in the number of taps. The equalizer includes a branching circuit for branching a digital modulated signal into two outputs which are orthogonal to each other. At least three first weighting circuits are provided for weighting one of the outputs of the branching circuits and second weighting circuits not greater in number than the first weighting circuits are provided for weighting the other of the outputs of the branching circuit. Combining circuits equal in number to the first weighting circuits are …
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 August 29, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 29, 2006.
- 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.