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Your search returned 56 patents.
( 726/33 in Current US Classification )
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Patent IDTitleDate Filed
7266202 Information processing device and method, and program storage medium February 17, 2000
7249106 Information processing method and apparatus and program storage medium for prohibiting duplication of contents in large quantities December 24, 1999
7243235 Mandatory access control (MAC) method June 8, 2004
7239702 Information recording/reproducing device August 16, 2000
7237124 Contents recorder/reproducer January 14, 2003
7231042 Signal transmission apparatus and signal transmission method February 28, 2001
7219222 Method and system to grant access to software options resident on a medical imaging device January 18, 2002
7213269 Application rights enabling February 21, 2002
7209902 Repository with security class and method for use thereof March 25, 2005
7203968 Method and apparatus for selectively executing information recording using a cognizant mode and a non-cognizant mode September 6, 2001
7194092 Key-based secure storage January 8, 1999
7191325 Method of operating a computer system and a computer system including a predetermined run authorization July 31, 2003
7188248 Recovering from de-synchronization attacks against watermarking and fingerprinting February 28, 2003
7181624 Information recording/playback apparatus and method April 4, 2001
7146645 Dedicated applications for user stations and methods for downloading dedicated applications to user stations December 30, 1999
7140042 System and method for preventing software piracy January 14, 2002
7131133 Access control method and information utilization apparatus September 17, 1997
7127615 Security based on subliminal and supraliminal channels for data objects September 20, 2001
7127431 Information recording device and information reproducing device May 6, 2003
7111171 Parallel distribution and fingerprinting of digital content January 31, 2003
7080406 Method for transferring privilege access to a resource manager with subsequent loss of privilege by the initiating identity December 15, 2000
7069590 System and method for protecting data streams in hardware components February 17, 2000
7069246 Method for minimizing pirating and/or unauthorized copying and/or unauthorized access of/to data on/from data media including compact discs and digital versatile discs, and system and data media for same September 12, 2003
7065652 System for obfuscating computer code upon disassembly June 21, 2000
7058979 Method for inserting a watermark into an image April 7, 2000
7047413 Collusion-resistant watermarking and fingerprinting April 23, 2001
7039848 Data recording medium, data recording method and apparatus, data playback method and apparatus, and data determination method December 16, 2002
6795921 Apparatus and method for translating with decoding function June 2, 1998
6772340 Digital rights management system operating on computing device and having black box tied to computing device March 15, 2000
6711685 System and procedure for protection against the analytical espionage of secret information June 8, 1999
6615359 Modified license key entry for pre-installation of software November 26, 2001
6571344 Method and apparatus for authenticating time-sensitive interactive communications December 21, 1999
6526146 Information recording system February 16, 1999
6502194 System for playback of network audio material on demand April 16, 1999
6490686 Method and apparatus for restricting privilege access to distributed content information October 5, 1998
6477650 Data protecting system and method for protecting data October 26, 1998
6453305 Method and system for enforcing licenses on an open network May 21, 1999
6446211 Method and apparatus for monitoring software using encryption November 10, 2000
6430561 Security policy for protection of files on a storage device October 29, 1999
6272593 Dynamic network cache directories April 10, 1998
6161184 Data storing medium processing apparatus for storing program to be executed in volatile memory area with no back-up battery September 18, 1997
6145081 Method and apparatus for preventing removal of embedded information in cover signals February 2, 1998
5974400 Trying-on apparel virtually (electronically) while protecting private data using irreversible process January 8, 1998
5964876 Program-invocation-count measuring system, program-invocation-count measuring method, and medium for storing program-invocation-count measuring software November 12, 1997
5896255 Magnetic disc cartridge and corresponding system/method for limiting coping of software March 12, 1997
5883955 On-line try before you buy software distribution system June 7, 1995
5883954 Self-launching encrypted try before you buy software distribution system June 7, 1995
5870543 System for preventing unauthorized copying of active software March 11, 1997
5826009 Protection of software from physical and electronic interrogation by sealing and checking password July 25, 1995
5758121 Data storage security apparatus and method which erases memory and utilizes a power switch to cut-off electric power during unsuccessful access December 29, 1995
5546333 Data processor having a data table for performing a dual function of alphanumeric notice and numerical calculations October 20, 1995
5515540 Microprocessor with single pin for memory wipe December 28, 1993
5014234 System with software usage timer and counter for allowing limited use but preventing continued unauthorized use of protected software August 25, 1986
4959861 Security system for computer software July 13, 1988
4864494 Software usage authorization system with key for decrypting/re-encrypting/re-transmitting moving target security codes from protected software March 21, 1986
4646234 Anti-piracy system using separate storage and alternate execution of selected proprietary and public portions of computer programs February 29, 1984
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