Communication system for coexistent base band and broad band signals
US5150365A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jul 5, 1990 |
| Grant date | Sep 22, 1992 |
| Priority date | — |
| Expiry date | Jul 5, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/54
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A base-band and broad-band coexisting communication system comprises a transmission path, a plurality of first data terminal units outputting data to be transmitted in the form of pulse signals (base band signals), a plurality of second data terminal units for outputting data to be transmitted in the form of modulated signals (broad band signals) each having a center frequency within a predetermined frequency range, and a plurality of low-pass filters, each connected to each of the first data transmission units, for cutting off high frequency components of the base band signal outputted by the first data terminal device at a predetermined cut-off frequency which does not overlap with the broad band signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.