Radio broadcasting system and method providing continuity of...

Details Radio broadcasting system and method providing continuity of... Radio broadcasting system and method providing continuity of...

2006-10-03

2006-10-03

Phunkulh, Bob A. (Department: 2616)

Multiplex communications

Channel assignment techniques

Combined time and frequency assignment

C370S478000, C378S147000

Reexamination Certificate

active

07116676

ABSTRACT:
A system and method to provide continuity of service in a radio broadcasting system, wherein the radio broadcasting system includes at least one modem using the COFDM technique, and transmits N time-frequency cells modulated independently of one another. A number N1of cells conveying digital audio signal S1and a number N2of cells conveying analog audio signal S2are transmitted to a receiver. When the receiver cannot decode the signal in the N1cells, the receiver replaces the digitized audio signal S1with the analog signal S2.

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