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Class Information
Number: 380/54
Name: Cryptography > By modifying optical image (e.g., transmissive overlay)
Description: Subject matter which changes the visible appearance of an object so as to encrypt visible markings, or to decode the appearance of the object into intelligible visible markings.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11

Patent Number Title Of Patent Date Issued
8705736 Image encryption for print-and-scan channels using pixel position permutation Apr. 22, 2014
8687843 Method and system for restricting access to sensitive contents of digital images Apr. 1, 2014
8682082 Pictogram and ISO symbol decoder service Mar. 25, 2014
8676878 Domain managing method, domain extending method and reference point controller electing method Mar. 18, 2014
8660267 Method and device for generating and detecting a fingerprint functioning as a trigger marker in a multimedia signal Feb. 25, 2014
8660295 Watermarking of digital images using watermark-indicators Feb. 25, 2014
8649512 Duo codes for product authentication Feb. 11, 2014
8639949 Device with a secure virtual machine Jan. 28, 2014
8632100 Security element Jan. 21, 2014
8625839 Embedder for embedding a watermark into an information representation, detector for detecting a watermark in an information representation, method and computer program and information signal Jan. 7, 2014
8599457 Image processing device, method, system and the associated program for generating a composite image Dec. 3, 2013
8588414 Image encryption and image decryption apparatus and method Nov. 19, 2013
8582900 Digital watermark embedding device, computer-readable recording medium, and digital watermark detecting device and computer-readable recording medium Nov. 12, 2013
8571212 Image encrypting device, image decrypting device and method Oct. 29, 2013
RE44542 Check based online payment and verification system and method Oct. 15, 2013
8549099 Methods and systems for javascript parsing Oct. 1, 2013
8542871 Brand protection and product authentication using portable devices Sep. 24, 2013
8533837 System and method for network edge data protection Sep. 10, 2013
8528103 System for managing display and retrieval of image content on a network with image identification and linking to network content Sep. 3, 2013
8515062 Image encryption/decryption apparatus, method and program Aug. 20, 2013
8515121 Arrangement of objects in images or graphics to convey a machine-readable signal Aug. 20, 2013
8516265 Authentication method, authentication device, program and recording medium Aug. 20, 2013
8488837 Apparatus and method for generating constructively multi-patterned watermark, and apparatus and method for inserting and detecting the watermark using the same Jul. 16, 2013
8484455 Online data encryption and decryption Jul. 9, 2013
8477936 Management system including display apparatus and data management apparatus for displaying data on the display apparatus, and data acquisition method Jul. 2, 2013
8462949 Method and apparatus for secure display of visual content Jun. 11, 2013
8442221 Method and apparatus for image encryption and embedding and related applications May. 14, 2013
8437578 Digital anti-counterfeiting software method and apparatus May. 7, 2013
8409705 Rainbow fibres Apr. 2, 2013
8397275 Time-varying sequenced image overlays for CAPTCHA Mar. 12, 2013
8391543 Method and apparatus for preventing data leakage faciliated by steganography Mar. 5, 2013
8363284 Image processing system for producing copy protected images using transparent recording material Jan. 29, 2013
8355505 Picture taking apparatus and method of controlling same Jan. 15, 2013
8355525 Parallel processing of digital watermarking operations Jan. 15, 2013
8351604 Coding method, decoding method, codec and data storage medium for holographic storage Jan. 8, 2013
8347102 Image processing apparatus and method for transmitting encrypted data Jan. 1, 2013
8339678 Apparatus, system, and method of process control based on the determination of embedded information Dec. 25, 2012
8335014 Image forming apparatus, control method, and program for copy-forgery-inhibited dot pattern calibration Dec. 18, 2012
8331608 Hidden image identification system, products, identification device and producing method Dec. 11, 2012
8312281 Computer system incorporating a target and symbol data sensing arrangement Nov. 13, 2012
8306876 Method of selling a product over the internet Nov. 6, 2012
8306221 Image encryption apparatus and image decryption apparatus Nov. 6, 2012
8300806 Duo codes for product authentication Oct. 30, 2012
8300878 Blind wavelet-based watermarking method Oct. 30, 2012
8282015 Document with linked viewer file for correlated printing Oct. 9, 2012
8279493 Image processing method, program thereof, image processing apparatus, and inkjet recording apparatus Oct. 2, 2012
8280054 Scrambling and descrambling systems for secure communication Oct. 2, 2012
8281138 Steganalysis of suspect media Oct. 2, 2012
8270603 Authentication method and system Sep. 18, 2012
8261060 Content transmitting apparatus, content transmitting method, and content transmitting program Sep. 4, 2012

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