Communication system
US4203010A · kind A · utility
3Cited by
6References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 11, 1978 |
| Grant date | May 13, 1980 |
| Priority date | — |
| Expiry date | Jul 11, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B5/48
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Data and speech are transmitted along an elongate member from a transmitter to a receiver. Toroids are used to effect a low frequency coupling between the transceivers and the elongate member. The toroids are segmented and their windings are such as to form part of a resonant circuit as well as being arranged around the segments such that external fields are cancelled. Protective shrouds are arranged around at least part of the toroids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.