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E-VSB map signaling

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3 Author(s)
Fimoff, Mark ; Zenith Electron. Corp, Lincolnshire, IL, USA ; Horwitz, T.P. ; Bretl, W.E.

Addition of a backwards-compatible enhanced data mode (E-VSB) to ATSC (Advanced Television Systems Committee) standard 8-VSB transmissions requires a way to reliably indicate to new enhanced receivers the mix of E-VSB and 8-VSB data. This mix is indicated by "map" data using bits in the reserved area of the 8-VSB data field sync. This must be done in a manner that allows for changing the mix "on the fly" without loss of E-VSB/8-VSB data. The reception of the map data must be significantly more robust than the lowest code rate E-VSB data. A method is described that offers reliable signaling without latency for channel-change in the receiver.

Published in:

Consumer Electronics, IEEE Transactions on  (Volume:49 ,  Issue: 3 )