US 8,265,276 B2
Method for combining transfer functions and predetermined key creationGeneral
US 8,265,276 B2
Method for combining transfer functions and predetermined key creation
Tech Center:
2400 Networking, Multiplexing, Cable, and Security
Examiner:
Gilberto Barron, Jr.
Art Unit:
2432 Cryptography and Security
Agent:
Inventors:
Scott A. Moskowitz
Assignee:
Priority:
01/17/96
Filed:
12/22/09
Granted:
09/11/12
Expiration:
10/19/20
Abstract
A method for combining transfer functions with predetermined key creation. In one embodiment, digital information, including a digital sample and format information, is protected by identifying and encoding a portion of the format information. Encoded digital information, including the digital sample and the encoded format information, is generated to protect the original digital information. In another embodiment, a digital signal, including digital samples in a file format having an inherent granularity, is protected by creating a predetermined key. The predetermined key is comprised of a transfer function-based mask set to manipulate data at the inherent granularity of the file format of the underlying digitized samples.
Cooperative Patent Classification (CPC)
G06G06T2201/0083G06F2221/2107G06TH04L2209/608H04L