Invariant referencing in digital works

  • US 7,865,817 B2
  • Filed: 03/29/2007
  • Issued: 01/04/2011
  • Est. Priority Date: 12/29/2006
  • Status: Active Grant
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First Claim
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1. A method of presenting eBook content on an eBook reader device, the method comprising:

  • displaying a portion of the eBook content on a display screen of the eBook reader device under a set of display conditions including a font size and a line spacing; and

    displaying on the display screen of the eBook reader device one or more invariant location reference identifiers based at least in part upon a byte-count corresponding to the portion of the eBook content displayed on the display screen, the one or more invariant location reference identifiers being separate from the eBook content, such that the eBook content is unaltered by the provision of the invariant location reference identifiers,wherein each invariant location reference identifier is provided along with the corresponding portion of the eBook content, regardless of the display conditions under which the portion of the eBook content is displayed.

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