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An encoded message includes a plurality of data items and a plurality of redundant data items. Each of the redundant data items is associated with more than one of the data items. To decode the encoded message, a reduced first redundant data item is reduced to correspond to only one data item. This

An encoded message includes a plurality of data items and a plurality of redundant data items. Each of the redundant data items is associated with more than one of the data items. To decode the encoded message, a reduced first redundant data item is reduced to correspond to only one data item. This data item is replaced with the reduced first redundant data item. A second redundant data item is reduced, using the replaced data item, to correspond to only a second of data item. The second data item is replaced with the second redundant data item to decode the encoded message.

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[ What is claimed is:] [1.] A method of decoding an encoded message which includes a plurality of data items and a plurality of redundant data items each associated with more than one of the plurality of data items, comprising the steps of:reducing a first of the plurality of redundant data items to

[ What is claimed is:] [1.] A method of decoding an encoded message which includes a plurality of data items and a plurality of redundant data items each associated with more than one of the plurality of data items, comprising the steps of:reducing a first of the plurality of redundant data items to correspond to only a first of the plurality of data items;replacing the first of the plurality of data items with the reduced first of the plurality of redundant data items;reducing a second of the plurality of redundant data items, to correspond to only a second of the plurality of data items; andreplacing the second of the plurality of data items with the reduced second of the plurality of redundant data items to decode the encoded message;wherein each of the plurality of data items is associated with a number of the plurality of redundant data items, the number being different for different ones of the plurality of data items; andeach of the plurality of redundant data items is associated with particular one of the plurality of data items and the association is random.