DRM/AM simulcast

Details DRM/AM simulcast DRM/AM simulcast

2007-01-30

2007-01-30

Ha, Dac (Department: 2611)

Pulse or digital communications

Transmitters

C375S300000

Reexamination Certificate

active

10191190

ABSTRACT:
An AM simulcast broadcast signal combining a digital transmission signal and an analogue transmission signal in one transmission channel. The digital transmission signal is modulated to one sideband of a carrier of the transmission channel and a correcting signal (C) is modulated to the other sideband of the carrier of the transmission channel, which correcting signal (C) is determined so that the envelope demodulation of the transmission channel represents the analogue transmission signal.

REFERENCES:
patent: 5535215 (1996-07-01), Hieatt, III
patent: 5588022 (1996-12-01), Dapper et al.
patent: 5809065 (1998-09-01), Dapper et al.
patent: 6005894 (1999-12-01), Kumar

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