Copy protection or prevention

CL 705 SC 57
6959288 Digital content preparation system
Oct-25-2005 A digital content preparation system that includes a metadata acquisition tool for acquiring metadata associated with the digital content, and a digital content processor for processing the digital content...
6957350 Encrypted and watermarked temporal and resolution layering in advanced television
Oct-18-2005 A method and apparatus for image compression using temporal and resolution layering of compressed image frames, and which provides encryption and watermarking capabilities. In particular, layered compression...
6957194 Method for printing digital works
Oct-18-2005 A method for providing limited printing of a digital work having one or more rights associated therewith within a system having at least one repository configured to enforce use of the digital work in...
6957193 Repository with security class and method for use thereof
Oct-18-2005 A trusted system having at least one repository for controlling use of digital works in accordance with usage rights associated with the digital works. A request to use a digital work in accordance with...
6954896 Browser-based arrangement for developing voice enabled web applications using extensible markup language documents
Oct-11-2005 A unified web-based voice messaging system provides voice application control between a web browser and an application server via an hypertext transport protocol (HTTP) connection on an Internet Protocol...
6954860 Network copy protection for database programs
Oct-11-2005 Improved techniques for implementing Network Copy Protection for database programs are disclosed. The techniques can provide Network Copy Protection across various platforms and/or connection protocols....
6954857 Method and apparatus for detecting data
Oct-11-2005 A system for facilitating copyright protection of material includes an apparatus for detecting the presence or absence of a block of data, which may have been embedded repeatedly a predetermined number...
6950944 Security code activated access control system
Sep-27-2005 An access control system that utilizes security codes (500), a database (430), and a control device (20) is disclosed. Each security codes (500) is comprised of a unique key code...
6947910 Secure ticketing
Sep-20-2005 Methods, apparatus and system, including computer program products, implementing and using techniques for generating a ticket representing a selection of media files to be transferred from a content server...
6947909 Distribution, recognition and accountability system for intellectual and copy written properties in digital media's
Sep-20-2005 A method for distribution, recognition and accountability for Intellectual and Copy written Properties in digital media's by associating a Transaction Code Identifier or Designator and further bundled...
6947563 Method for assigning encryption keys
Sep-20-2005 An encryption key matrix has rows grouped into segments, with a set of one segment per column establishing a slot. Slots are assigned to device manufacturers, with the keys of the slots then being assigned...
6944769 Apparatus and a method for security authorization using a security key installed on removable media
Sep-13-2005 An apparatus and a method in a data processing system are provided for insuring the security of data accessed from removable media. Normal virus scanning occurs after data is loaded into the main memory,...
6944765 Method of authentication anonymous users while reducing potential for "middleman" fraud
Sep-13-2005 A method of authenticating anonymous users while reducing potential for "middleman" fraud includes the step of constructing a puzzle in response to information received from a software user. The puzzle...
6944601 Method of licensing software programs
Sep-13-2005 A method and a system for the combined licensing of one or more software programs (3) protected by a software protection (5), is provided. Each software protection (5) can be deactivated...
6944600 System for controlling the distribution and use of digital works using digital tickets
Sep-13-2005 A system for controlling the distribution and use of digital works using digital tickets. In the present invention, a "digital ticket" is used to entitle the ticket holder to exercise some usage right...
6944298 Steganographic encoding and decoding of auxiliary codes in media signals
Sep-13-2005 One aspect of the invention is a method of decoding an auxiliary code embedded in an audio signal. The method performs a statistical decoding of a multibit auxiliary code embedded in an audio signal. The...
6944297 Method and apparatus for reproducing ciphered data
Sep-13-2005 A data reproducing apparatus and method is provided for reproducing data that was ciphered during recording in one or more of sector forming, header appending, error correction coding, modulation, and...
6941283 Information recording device and information reproducing device
Sep-6-2005 The information reproduction device for reproducing contents information based on license information added to the contents information and required for reproducing the contents information, includes a...
6934851 Method and apparatus for use of a time-dependent watermark for the purpose of copy protection
Aug-23-2005 A copy protection system for protecting content wherein a ticket and a watermark are created, utilizing a first time reference (TD) and a one-way function, to indicate the copy protection status of the...
6934847 Data alteration checking apparatus and method and recording medium
Aug-23-2005 MAC values formed with respect to each file belonging to a directory 122A and ICVs (D-ICVc) formed on the basis of the MAC values of all files belonging to the directory 122A are stored into...
6934837 System and method for regulating the transmission of media data
Aug-23-2005 A system and method regulate the transmission of media data. In accordance with one embodiment of the invention, a header portion of a media file is encoded to include an access code. The access code corresponds...
6934693 System for controlling the distribution and use of digital works
Aug-23-2005 A system for controlling the distribution and use of digital works using digital tickets. In the present invention, a "digital ticket" is used to entitle the ticket holder to exercise some usage right...
6928419 Method and apparatus for repackaging portions of digital works as new digital works
Aug-9-2005 A method and system for creating a new digital work from one or more existing digital works having parts. A first part of a digital work has first usage rights associated therewith, the first usage rights...
6928165 Communication system using digital watermark for synchronizing multiplexed text data to video frames
Aug-9-2005 A digital video communication system includes, at a source site, an embedding circuit for embedding a digital watermark in a digital video stream to produce a watermarked digital video stream, and a multiplexer...
6925448 Usage rights grammar and digital works having usage rights created with the grammar
Aug-2-2005 A digital work recorded on a computer readable media for use within a system having at least one repository for enforcing use of digital content in accordance with usage rights associated with the digital...
6920436 Digital work structure
Jul-19-2005 A digital work for use within a rights management system for controlling use of the digital work in accordance with usage rights. The work is organized into an acyclic structure and includes a contents...
6915481 Transactional watermarking
Jul-5-2005 Transactional watermarking is disclosed. In one embodiment, a computer-implemented method includes receiving an original multimedia content source. The original multimedia content source may have already...
6912514 Content distribution system and a reference server
Jun-28-2005 A content distribution system includes a plurality of distribution servers (101-108), and a reference server (112). The reference server (112) holds URLs showing network locations of the plurality of distribution...
6909784 Recording apparatus and recording method of electronic watermark
Jun-21-2005 A detector (1) of signal detects an electronic watermark (first electronic watermark) signal from an inputted contents data. The detected electronic watermark signal is temporarily stored in a memory (2)...
6907407 Copyright management apparatus
Jun-14-2005 An electronic copyrighted work distribution management system includes an electronic copyrighted work sales apparatus selling an electronic copyrighted work, a copyright management apparatus administering...
6898578 Recording apparatus for recording digital information
May-24-2005 A digital information recording apparatus to record digital information to protect copyright of digital information that includes at least first digital information and first copy control information....
6898577 Methods and systems for single sign-on authentication in a multi-vendor e-commerce environment and directory-authenticated bank drafts
May-24-2005 A computer-implemented draft authentication method for use in e-commerce includes the steps of establishing partner relationships between a financial institution and a plurality of World Wide Web (Web)...
6898576 Method and apparatus for executing code in accordance with usage rights
May-24-2005 A system for controlling the distribution and use of digital works using digital tickets. In the present invention, a "digital ticket" is used to entitle the ticket holder to exercise some usage right...
6889210 Method and system for managing security tiers
May-3-2005 Techniques for reorganizing security levels without implicating accessibility to secured files classified in accordance to one of the security levels are disclosed. In a case of adding a new security level,...
6889209 Method and apparatus for protecting information and privacy
May-3-2005 A mechanism for the purchase of tags for copies of software ensures that identity of the purchaser of a tag table identifier value included in a purchased tag is not revealed. A mechanism of Call-Ups from...
6889208 Contents sale system
May-3-2005 In a contents sale system, original contents data are encrypted into encryption-resultant contents data in response to original playback key data. The original playback key data are encrypted into first...
6889206 Method for computer network operation providing basis for usage fees
May-3-2005 A computer network having a requesting node and a providing node permits data transfer therebetween when permitted by an authorizing node. Reports generated in response to authorizations and reports generated...
6885748 System and method for protection of digital works
Apr-26-2005 A method of protecting a digital work uses a format preserving encryption scheme to encrypt the digital work. This enables any native replay application or rendering application to transform an encrypted...
6885629 Recordable optical disk including an auxiliary information presence indicator
Apr-26-2005 An optical disk having a first recording area for recording information; and a second recording area having auxiliary information including disk identification information unique to that optical disk recorded...
6882987 Methods and apparatus for transmitting and receiving a decoding key encoded with specific information to decode encrypted information of a record medium
Apr-19-2005 A data recording apparatus capable of preventing easily copying of information is disclosed with which, even if information is copied, the copied information cannot be reproduced, the data recording apparatus...
6882979 Generating revenue for the use of softgoods that are freely distributed over a network
Apr-19-2005 An on-line electronic commerce transaction for facilitating purchase of digital products (softgoods) after enabling a user to preview the softgoods. Creators of the softgoods enter into an agreement with...
6873976 Secured purchasing system
Mar-29-2005 A system and method for transferring an encrypted file over the Internet involves a seller, a buyer, and a transaction agent. The file has a first part (administrative information) and a second part (subject-matter...
6873975 Content usage control system, content usage apparatus, computer readable recording medium with program recorded for computer to execute usage method
Mar-29-2005 A content usage control system comprises a copyright holder system, content server, license server and user system. The ACL setting section of the copyright holder system sets a license ACL expressed as...
6871192 System and method for preventing unauthorized use of protected software utilizing a portable security device
Mar-22-2005 A method and system for protecting software from unauthorized use on a computer system using an external security device is disclosed. The method and system include encrypting the software to be protected...
6868495 One-time pad Encryption key Distribution
Mar-15-2005 Some of these problems with digital information protection systems may be overcome by providing a mechanism which allows a content provider to encrypt digital information without requiring either a hardware...
6868494 Reproducing apparatus and information distribution system
Mar-15-2005 A reproducing apparatus operable to move data that is coded and managed for copyright protection after evaluation an encryption key and permitting its movement based on a result of the evaluation, to copy...
6865677 Contents rendering control method, contents reproducing equipment, and contents distribution equipment
Mar-8-2005 To enable the control of rendering contents in part by using digital watermark technique: a contents serving center for embedding watermark in contents 4 embeds control information as digital watermarks...
6865675 Method and apparatus for use of a watermark and a unique time dependent reference for the purpose of copy protection
Mar-8-2005 A copyright protection system for protecting content wherein a time dependent ticket is calculated at a source device by combining a checkpoint with a ticket. The checkpoint is transmitted from a display...
6865553 Copy protection apparatus and method
Mar-8-2005 An apparatus and method of copy protection for use in digital data recorders such as DVD-RAM recorders, which includes embedding transmission time information into a digital data stream by digital watermarking...
6865552 Data copying system, data copying apparatus, data copying method, and recording medium
Mar-8-2005 A data copying system of the present invention includes a data copying apparatus for copying data recorded on a first recording medium to a second recording medium. The data copying apparatus includes:...