198751 ⎘
Signal processing not specific to the method of recording or reproducing; Circuits therefor; Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number wherein the usage restriction limits the number of times a content can be reproduced, e.g. using playback counters
Information processing apparatus and associated method of content exchange
#2Method and system for use in coordinating multimedia devices
#3Limited use data storing device
#4Method and system for use in coordinating multimedia devices
#5DATA RECORDING MEDIUM, SERVER DEVICE USING THE SAME, AND METHOD OF MANAGING USE OF DATA RECORDING MEDIUM
#6Information processing apparatus and associated method of content exchange
#7Information service method, information service unit, recording or reproducing controlling method, and recording and/or reproducing unit
#8Reproduction system
#9Read-once record medium and a system with read protecting function
#10REPRODUCTION SYSTEM
#11Memory controller, nonvolatile storage device, and nonvolatile storage device system
#12METHOD FOR MANAGING THE NUMBER OF VISUALIZATIONS, SECURITY PROCESSOR AND TERMINAL FOR SAID METHOD
#13METHOD FOR CONTROLLING ACCESS TO CONTENT ON DATA CARRIER
#14CONTROLLING DISTRIBUTION AND USE OF DIGITAL WORKS
#15ENCRYPTED CONTENT REPRODUCTION DEVICE, ENCRYPTED CONTENT REPRODUCTION METHOD, PROGRAM, AND RECORDING MEDIUM FOR STORING THE PROGRAM
#16Read-once record medium and a system with read protecting function
#17Content playback apparatus, content playback method, computer program, key relay apparatus, and recording medium
#18Method and apparatus for automatically notifying a renter of digital content when the rental period has expired
#19Integrated multimedia file format structure, and multimedia service system and method based on the intergrated multimedia format structure
#20Method and system for use in coordinating multimedia devices
#21Visual substitution options in media works
#22Data retrieval systems
#23Data retrieval systems
#24ENHANCED DELIVERY OF AUDIO DATA FOR PORTABLE PLAYBACK
#25Method for etching and secure distribution of digital data, access device and writer
#26Information Recording Medium, and Information Reproducing Apparatus and Method
#27COPY PROTECTED DIGITAL DATA
#28Position detection device, position detection method, position detection control device, position detection control method, position detection control program, access authentication device, access authentication method, access authentication control device, access authentication control method, access authentication control program, information storage device, and optical disk
#29Optical disk and optical disk reproducing device
#30Copy-Protected Optical Information Carrier
#31Digest creating method and device
#32Method and Device For Protecting the Contents of an Information Carrier
#33Portable Video Hard-Disk Drive (pVHDD) System
#34Portable Recording Medium, Recording Medium Playback Aapparatus, and Recording Medium Playback Method
#35Method for Saving ther Keylockers on Optical Discs
#36Optical information recording/reproducing apparatus and optical information recording medium
#37Information managing apparatus and method, recording medium, and program
#38Recording medium and apparatus for protecting copyrighted digital data
#39Recording medium and apparatus for protecting copyrighted digital data
#40Remote Control For Combination Compact Disc Recorder And Player System
#41SYSTEM FOR COVERTLY STORING CONTROL INFORMATION
#42Read-once record medium and a system with read protecting function
#43Information Recording Medium
#44INFORMATION PROCESSING APPARATUS AND METHOD, AND PROGRAM STORAGE MEDIUM
#45Recording medium, recording method, recording apparatus, reproduction apparatus, data transmission method, and server device
#46Recording apparatus that records information for protecting intangible property right, recording method thereof, record medium thereof, and program thereof
#47Method and system for data security of recording media
#48Multimedia-type contents reproduction device and reproduction method, and recording medium having stored thereon data used for the same
#49Digital work protection system, record/playback device, recording medium device, and model change device
#50Optical disk replay device
#51Information processing apparatus and method, and program storage medium
#52Recording medium and apparatus for protecting copyrighted digital data
#53Data recovery systems
#54Limited use data storing device
#55Information processing system, information processing method, computer program executed in information processing system
#56Enhanced delivery of audio data for portable playback
#57Method and apparatus for managing contents
#58Copy protected digital data
#59Retention of information about digital-media rights in transformed digital media content
#60Recording/playback control device, contents management method and recording/playback apparatus
#61Content data reproducing apparatus with temporary data memory
#62Post-paid billing system and method for multimedia files
#63Information terminal and content storage/playback method
#64Data distribution system and data selling apparatus therefor, data retrieving apparatus, duplicated data detecting system, and data reproduction apparatus
#65Unified control and memory for a combined DVD/HDD system
#66Information processing apparatus and method, and program storage medium
#67Audio data communication system, audio data transmission apparatus, audio data reception apparatus, composite data communication system, composite data transmission apparatus and composite data reception apparatus
#68Optical disk player
#69Encrypted contents recording medium and apparatus and method for reproducing encrypted contents
#70Recording medium and apparatus for protecting copyrighted digital data
#71Scrambling content information in a first recording medium when downgrading the quality of content information for storage on a second recording medium
#72Flexible host system for storage media
#73Method of providing copy protection for optical storage media
#74Information carrier provided with a transitional region between the clambing area and the information area
#75Information processing apparatus and associated method of content exchange
#76Semiconductor memory card that records contents for trial and purchase, and recording apparatus, recording and reproducing apparatus, and sales method for the same
#77Information record medium and information writing/reading apparatus
#78Information managing apparatus and method, recording medium, and program
#79Storage media access control method and system
#80Cryptographic module for the storage and playback of copy-protected electronic tone and image media which is protected in terms of use