Signal isolation control apparatus and method of controlling a hybrid junction
US10425120B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2015 |
| Grant date | Sep 24, 2019 |
| Priority date | — |
| Expiry date | Feb 15, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/581
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A signal isolation control apparatus for controlling duplexing of signals to be transmitted through and received from an antenna. The apparatus includes a transmitter chain tap input for coupling to a transmitter chain. An auxiliary transmitter chain is operably coupled to the transmitter chain tap input for processing a transitory signal tapped from the transmitter chain, the auxiliary transmitter chain including an adaptive filter unit and a balance node output for operably coupling to a balance node of a hybrid junction. The adaptive filter unit has a signal leakage monitoring input for operably coupling to an output node of the hybrid junction. The auxiliary transmitter chain is arranged to process the tapped transitory signal in order to generate and apply an isolation signal at the balance node output for maximizing isolation of an output node of the hybrid junction from an input node of the hybrid junction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.