Method and device for transmitting mixed analog and digital signals by the same transmitter
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United States of America Patent
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Jul 9, 2002
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N/A
app pub date -
Jun 1, 1999
filing date -
Nov 29, 1996
priority date (Note) -
Expired
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Abstract
A process for transmitting mixed analog and digital signals. A composite signal is transmitted whose frequency spectrum is composed of a first analog spectrum representative of the amplitude of single-sideband modulation and of a second spectrum composed of multi-subcarriers. The two spectra occupy two disjoint frequency bands. The device may be used for simultaneous broadcast of the same program or its reception by analog or digital receivers.
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