Method for data preparation and watermark insertion
June 5, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesDigital signal encoding and decoding apparatus Embedded hidden identification codes in digital objects Color correct digital watermarking of images Steganography methods employing embedded calibration data Method and apparatus for embedding authentication information within digital data Watermarking process resilient to collusion attacks Post-compression hidden data transport Steganographic method and device Method and apparatus responsive to a code signal conveyed through a graphic image Method and system for digital image signatures InventorsAssigneeApplicationNo. 092431 filed on 06/05/1998US Classes:713/176, Authentication by digital signature representation or digital watermark380/201, Copy protection or prevention380/217, Having compression (e.g., MPEG)382/100, APPLICATIONS382/232IMAGE COMPRESSION OR CODINGExaminersPrimary: Hayes, Gail O.Assistant: Song, Hosuk Attorney, Agent or FirmForeign Patent References
International ClassH04L 009/00AbstractA method for data preparation and watermark insertion. The method includes the step of preparing the data at a first time by manipulating at least one set of the data characteristics for subsequent insertion of a first watermark. In a preferred embodiment of the method of the present invention the method further includes the step of inserting the first watermark by manipulating the set of data characteristics at a second time subsequent to the first time. In still yet another preferred embodiment of the method of the present invention, the method further includes the step of inserting a second watermark at a third time, before, during, or after the first time, by manipulating at least one set of the data characteristics. In a variation of the present invention a method for inserting a watermark into compressed data is provided. The compressed data has sets of data characteristics. The method includes the steps of inserting a watermark by manipulating the set of data characteristics; and optimizing the manipulated data by modifying the compressed data characteristics subject to a set of constraints.Other References
Field of SearchPARTICULAR ALGORITHMIC FUNCTION ENCODINGBY MODIFYING OPTICAL IMAGE (E.G., TRANSMISSIVE OVERLAY) HAVING PRODUCTION OF PRINTED COPY (E.G., CRYPTOGRAPHIC PRINTER OR TYPEWRITER) VIDEO CRYPTOGRAPHY Copy protection or prevention Having origin or program ID Having copy protect signal APPLICATIONS IMAGE COMPRESSION OR CODING RECONFIGURATION (E.G., CHANGING SYSTEM SETTING) Authentication by digital signature representation or digital watermark Cryptogram (e.g., verification, tabular index) Having watermark CRYPTOGRAPHIC RECORD TEMPLATE BANDWIDTH REDUCTION OR EXPANSION Subsampling | |
