Data transmission cable
US6333465A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 23, 1998 |
| Grant date | Dec 25, 2001 |
| Priority date | — |
| Expiry date | Nov 23, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B11/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A data transmission cable having at least one unit of at least four conductors twisted into sets of conductors, which sets are quads or pairs, each conductor set being twisted at a pitch that is different from the pitch of any other conductor set, and each conductor being insulated by an insulating sheath. The unit being covered by at least one assembly structure, wherein the material used for the insulating sheath of any conductor in a given set of conductors has a relative dielectric constant that is different from that of the material used for the insulating sheath of any conductor in another set of conductors, such that the propagation time differences between the conductors of the set of conductors and the conductors of the other set of conductors is less than 2 ns/100 m.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.