×

Utilizing data reduction in steganographic and cryptographic systems

  • US 9,893,888 B2
  • Filed: 01/11/2016
  • Issued: 02/13/2018
  • Est. Priority Date: 03/24/1999
  • Status: Expired due to Term
First Claim
Patent Images

1. A machine implemented method for modifying signal streams using a computer processor and computer memory, comprising:

  • applying a lossy data reduction technique to an original signal stream to result in a data reduced signal stream;

    subtracting the data reduced signal stream from the original signal stream to result in a subtraction signal stream;

    applying a cryptographic technique to the data reduced signal stream to result in a cryptographically modified data reduced signal stream.

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