Binary transversal filter
CA 1115355 A · Owner: Nippon Telegraph And Telephone Public Corporation · Inventors: Suzuki, Eiji; Ogawa, Kazuo; Horikawa, Izumi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention deals with a binary transversal filter which has a plurality of stages of shift registers that are driven by timing signals of a frequency which is greater by a number of times that of clock pulses being introduced, and a weighting circuit which weights outputs of shift registers of each of the stages so that outputs, of the weighting circuit can be synthesized. The characteristic feature of the present invention resides in the facts that NRZ signals are introduced into the shift registers, and the shift registers are driven by timing signals of a frequency which is greater by M times that of clock pulses of the NRZ signals.
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 December 29, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 29, 1998.
- 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.