Method and apparatus for determining the deviation of longitudinal signal components from a predetermined value
US5960076A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1997 |
| Grant date | Sep 28, 1999 |
| Priority date | — |
| Expiry date | Mar 19, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M19/005
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
To determine the deviation of longitudinal signal components from a predetermined value on a balanced two-wire circuit (A,B), a first voltage is measured between one of the wires (A) and a first reference potential by means of a first voltage measuring means (3), a second voltage is measured between the second wire (B) and a second reference potential by means of a second voltage measuring means (4), and the difference between the first and the second voltage is formed by means of a difference forming means (5), said difference being proportional to the deviation of the longitudinal signal components from the mean value of the first and the second reference potential.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.