Frequency modulated radio frequency broadcast network employing a synchronous frequency modulated booster system
USRE34499E · kind E · reissue
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1992 |
| Grant date | Jan 4, 1994 |
| Priority date | — |
| Expiry date | Mar 30, 2012 |
Classification
- Technology area (CPC —)General
Abstract
A frequency modulated radio frequency broadcast network in which re-transmitting stations employ a synchronous frequency modulated booster system. Included in the frequency modulated booster system is a synchronous frequency .[.modualted.]. .Iadd.modulated .Iaddend.exciter for converting a frequency modulated intermediate frequency into a frequency modulated broadcast signal. The synchronous frequency modulated .[.exicter.]. .Iadd.exciter .Iaddend.includes phase locked loop circuits for synchronizing the re-transmitted frequency modulated broadcast signal with the frequency modulated intermediate frequency signal by detecting reference signals in the composite baseband of the intermediate frequency signal and in the composite signal frequency modulated broadcast signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.