Data frame for 8 MHZ channels
AssigneeZenith Electronics Corporation
InventorMark Fimoff
Life of this patent
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Abstract
A transmitter transmits, and a receiver receives, a data frame is transmitted into an 8 MHZ channel. The data frame contains a plurality of data segments, where each of the data segments contain DS symbols. The DS symbols include data symbols, priming symbols, and segment synchronization symbols. The transmitter trellis encodes the data symbols, priming symbols, and segment synchronization symbols. The receiver trellis decodes the data symbols, priming symbols, and segment synchronization symbols. The data frame also contains a mode control ID which the receiver uses in trellis decoding the data symbols, priming symbols, and segment synchronization symbols.
Claims34
A receiver for receiving a data frame comprising:
- a tuner that tunes to an 8 MHZ television channel containing the data frame, wherein the data frame contains a plurality of data segments, wherein each of the data segments contains DS symbols, wherein the DS symbols include data symbols and segment synchronization symbols, and wherein the data symbols and segment synchronization symbols are trellis encoded;
- and,
- a decoder that decodes the data symbols and segment synchronization symbols.
A method of processing a received signal comprising:
- receiving a signal from an 8 MHZ television channel, wherein the signal contains a data frame, wherein the data frame contains a plurality of data segments, wherein each of the data segments contains DS symbols, wherein the DS symbols include data symbols and segment synchronization symbols, and wherein the data symbols and segment synchronization symbols are trellis encoded;
- decoding the trellis encoded segment sync symbols;
- and,
- decoding the trellis encoded data symbols.
Dependencies are inferred from the claim text.