×

METHOD OF AND APPARATUS FOR HIGH-BANDWIDTH STEGANOGRAPHIC EMBEDDING OF DATA IN A SERIES OF DIGITAL SIGNALS OR MEASUREMENTS SUCH AS TAKEN FROM ANALOG DATA STREAMS OR SUBSAMPLED AND/OR TRANSFORMED DIGITAL DATA

  • US 6,768,980 B1
  • Filed: 07/06/2000
  • Issued: 07/27/2004
  • Est. Priority Date: 09/03/1999
  • Status: Expired due to Term
First Claim
Patent Images

1. The method of steganographically embedding substantial supplemental digital data in a series of digital measurements derived from one of an analog data stream and subsampled and/or transformed digital data, that comprises, deriving such series of digital measurements through functional transformation from a set of input data converted into a set of output data of successive quantized and/or aliased components;

  • transforming the substantial supplemental digital data into a series of successive bits; and

    introducing the successive bits into the quantized and/or aliased components to modulate from a few percent to a substantial percentage of the successive components through but slight adjustments of the same, thereby to embed the supplemental data in from a few percent to a substantial percentage of the series of digital measurements without substantially affecting the quality thereof.

View all claims
  • 10 Assignments
Timeline View
Assignment View
    ×
    ×