Method for Automatic Reconfiguration in a Hierarchical Modulation System
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United States of America Patent
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Issued Date -
Aug 8, 2013
app pub date -
Jan 26, 2011
filing date -
Jan 26, 2010
priority date (Note) -
Abandoned
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Abstract
A method is provided for enhancing a legacy satellite digital radio audio service (SDARS) by overlaying a hierarchically modulated data stream on a base layer (legacy) data stream to increase the amount of data transmitted in the SDARS system. Using improved (next generation) receiver designs, additional services can be provided to users while existing legacy receivers can continue to receive the services broadcast on the base layer modulated data stream in the legacy system.
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