Hybrid for two-wire full-duplex transmission of digital signals
CA 1103775 A · Owner: International Standard Electric Corporation · Inventors: Dietze, Wolfgang; Reutter, Jorg
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
J. REUTTER - W. DIETZE - 9-10, (Revision) HYBRID FOR TWO-WIRE FULL-DUPLEX, TRANSMISSION OF DIGITAL SIGNALS Abstract of the Disclosure, The hybrid includes a control circuit which automatically matches the impedance of the balancing network to the input impedance of the two-wire line connected to the hybrid. For control, rectified voltages present on the two-wire side and across the balancing network are averaged over time and the mean time values are compared.
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 June 23, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 23, 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.