In-band on-channel digital broadcasting
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United States of America Patent
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Jan 21, 2003
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app pub date -
Oct 8, 1998
filing date -
Jan 12, 1993
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Abstract
A system for combining AM and FM transmissions. In-band, on-channel, FM Digital Audio Broadcast (IBOC FM-DAB) allows simultaneous transmission of DAB and FM over existing FM allocations without interfering with conventional analog FM signals. The utility of existing FM spectrum allocations is therefore enhanced.
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