Parasitic tolerant charge-based coupling measurement
US12395206B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 9, 2023 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Dec 13, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B3/487
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system for measuring parasitic capacitance coupling between adjacent first communication transmission line and second communication transmission line is disclosed. The system including: a parasitic tolerant capacitive based coupling measurement circuit (CBCM), the CBCM including: a capacitive auto-zeroing buffer configured to bias the second communication transmission line and displace coupling charge transferred from the first communication transmission line to a switched capacitor storage element; a capacitive trans-impedance amplifier configured to integrate displaced coupling charge onto an output voltage node; and a comparator configured to switch states once the capacitive trans-impedance amplifier integration has surpassed a reference trippoint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.