Input impedance derived from a transfer network
US5282157A · kind A · utility
33Cited by
25References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 1990 |
| Grant date | Jan 25, 1994 |
| Priority date | — |
| Expiry date | Sep 13, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/585
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Circuitry for transforming a transfer function characteristic into a specified input impedance includes: a hybrid arrangement having input, transmit, receive and balance ports; and a two-port network connected from the transmit to receive ports of the hybrid. The relation between the input impedance at the input port to the network transfer function is expressible as a function of the actual impedance seen looking into the two-wire input port of the hybrid, and the desired impedance to be simulated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.