Multichannel FM subcarrier broadcast system
US4782531A · kind A · utility
6Cited by
4References
2Claims
0Family size
Inventors
Key dates
| Filing date | Jun 23, 1987 |
| Grant date | Nov 1, 1988 |
| Priority date | — |
| Expiry date | Jun 23, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H20/34
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A multichannel FM subcarrier broadcast system is disclosed which enables the transmission of multiple independent signals by generating independent sidebands of suppressed carriers in the subcarrier band of an FM transmitting station. Transmitting and receiving apparatus is disclosed which employs phase shift networks to minimize interchannel distortion, thus allowing close spacing of adjacent sidebands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.