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Class Information
Number: 380/51
Name: Cryptography > Electric signal modification > Having production of printed copy (e.g., printer, typewriter)
Description: Subject matter which generates a permanent visible record of either the encrypted or decrypted characters.

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

Patent Number Title Of Patent Date Issued
8682082 Pictogram and ISO symbol decoder service Mar. 25, 2014
8682801 Method and arrangement for provision of security relevant services via a security module of a franking machine Mar. 25, 2014
8654973 Method, system, and program product for encrypting portions of a document using selective annotation Feb. 18, 2014
8656152 Image forming apparatus, host apparatus and encryption method of job object document thereof Feb. 18, 2014
8599457 Image processing device, method, system and the associated program for generating a composite image Dec. 3, 2013
8601605 Methods and apparatus for secure document printing Dec. 3, 2013
8564804 Information processing apparatus that does not transmit print job data when both encryption and saving in a printing apparatus are designated, and control method and medium therefor Oct. 22, 2013
8499332 Electronic board provided with security functions and method for ensuring electronic board security Jul. 30, 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
8467566 Method for detecting fraud in a printed image Jun. 18, 2013
8457310 Print system, control method therefor, information processing apparatus, control method therefor, program for implementing the control method, and storage medium storing the control program Jun. 4, 2013
8437578 Digital anti-counterfeiting software method and apparatus May. 7, 2013
RE44209 Method and system for real-time control of document printing May. 7, 2013
8429083 Messaging stamp authority Apr. 23, 2013
8416437 Image forming apparatus, control method therefor, and program Apr. 9, 2013
8375202 Communications methods and appliances Feb. 12, 2013
8363284 Image processing system for producing copy protected images using transparent recording material Jan. 29, 2013
8352744 Product authentication method 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
8332958 Image forming system Dec. 11, 2012
8325915 Image output system Dec. 4, 2012
8312281 Computer system incorporating a target and symbol data sensing arrangement Nov. 13, 2012
8282015 Document with linked viewer file for correlated printing Oct. 9, 2012
8275131 Image forming apparatus and security setting method thereof Sep. 25, 2012
8245306 Digital rights management printing system Aug. 14, 2012
8213614 Distribution and printing of travel documents Jul. 3, 2012
8213050 Image processing device, method, system and the associated program for generating a composite image Jul. 3, 2012
8203728 Print device, print method, print program recording medium, print data production device, print data production method, and print data production program recording medium Jun. 19, 2012
8199913 Object authentication using embossed hidden images Jun. 12, 2012
8189861 Watermarking digital documents May. 29, 2012
8189863 Watermarking digital documents May. 29, 2012
8191111 Image forming system and image forming apparatus May. 29, 2012
8150032 Methods for controlling rendering of images and video Apr. 3, 2012
8144368 Automated methods for distinguishing copies from original printed objects Mar. 27, 2012
8130951 Intelligent electronic document content processing Mar. 6, 2012
8125691 Information processing apparatus and method, computer program and computer-readable recording medium for embedding watermark information Feb. 28, 2012
8117457 Trusted hardcopy document Feb. 14, 2012
8117455 Object authentication from a signature part Feb. 14, 2012
8108906 Electronic data authenticity assurance method and program Jan. 31, 2012
8089661 Embedding authentication information to prevent document spoofing Jan. 3, 2012
8085978 Distributed decoding of digitally encoded media signals Dec. 27, 2011
8081327 Information processing apparatus that controls transmission of print job data based on a processing designation, and control method and program therefor Dec. 20, 2011
8060930 Methods and systems for imaging device credential receipt and authentication Nov. 15, 2011
8060921 Methods and systems for imaging device credential authentication and communication Nov. 15, 2011
8055901 Optical signature to enable image correction Nov. 8, 2011
8041952 Systems and methods for printing documents containing electronic signatures Oct. 18, 2011
8041645 Document security utilizing color gradients Oct. 18, 2011

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