Methods, objects and apparatus employing machine readable data

摘要

The present invention relates generally to steganography and data hiding. One claim recites an object including: electronic processing circuitry having an operating or performance metric associated therewith; and steganographic indicia carried by the object, the steganographic indicia is usable as an index to verify the operating or performance metric. Another claim recites an apparatus including: electronic memory; and machine-readable indicia usable as a registry index including data that provides an indication regarding an expected capacity of the electronic memory. Other combinations are described and claimed as well.