Methods, apparatus, and articles of manufacture to encode auxilary data into text data and methods, apparatus, and articles of manufacture to obtain encoded data from text data

摘要

Methods, apparatus, and articles of manufacture to encode auxiliary data into text data and methods, apparatus, and articles of manufacture to obtain encoded data from text data are disclosed. An example method to embed auxiliary data into text data includes assigning source data to one of a plurality of groups, the source data comprising text data, identifying a symbol to be added to the source data based on an assigned group of the source data, and generating encoded data by including in the source data a text character representative of the symbol.

主权项

1. A method to encode auxiliary data into text data, comprising:
assigning source data to one of a plurality of groups, the source data comprising text data; identifying a symbol to be added to the source data based on an assigned group of the source data; and generating, via a processor, encoded data by changing a first text character in the source data to be a second text character that is representative of the symbol and represents a same alphanumeric character or non-alphanumeric symbol as the first text character in the source data.