203 results about "Digital work" patented technology

A digital work may be annotated using an eBook reader device. Upon receiving an annotation relating to a specific portion of the digital work, an invariant location reference identifier corresponding to the specified portion of the digital work may be appended to the annotation. The annotation may then be stored in association with the digital work for later reference. In some instances, an annotation may be presented on an eBook reader device upon receipt of a valid authorization credential granting access to the annotation.

A method and apparatus for copying or moving a rights object having right information regarding digital contents between a device and a portable storage device to copy or move the digital contents there between are provided. According to the method and apparatus, the digital works can be prevented from being recklessly and randomly copied and moved, and therefore, copyright can be protected. In addition, data loss or unauthorized access can be prevented.

A computer-implemented service recommends works to a user based on works currently or previously played or downloaded by the user on a player device or based on playlists stored on the player device. The works may be, for example, music files, video files, electronic books, or other digital content for playing by users. A user may thus obtain personalized recommendations that are based on works obtained from sources (web sites, physical CDs, etc.) that are independent of the recommendations system. In one embodiment, the service identifies pairs of works that are related to each other by virtue of the relatively high frequency with which they co-occur on playlists or within play histories of users. The resulting mappings of works to related works are in-turn used to select works to recommend to users.

A system, business methodology and apparatus for facilitating controlled dissemination of digital works is disclosed. An audio and video organizer, entertainment, and communication unit that plays back audio and video media content received from a central storage server. The unit relies on a smartcard, which has a personalized key that unlocks encrypted content. Using the unit, a user can purchase music or other types of media using a appropriate ordering method. The central storage server then transmits a double-encrypted, compressed audio file to the unit, where it is decrypted based on the smartcard key, and available for listening.

A digital work and a system context (or resource information or system resource) are polarized enabling trusted rendering or replay of the digital work without depolarization of the digital content. The digital work includes digital content and resource information. Resource information may include information used by a replay application to format or process the digital content. The digital work and system context are polarized using a polarization scheme which relies on a polarization seed to initialize and customize the polarization. Different types of polarization seeds may be used, including a random number, a user's system's state or characteristic and a dynamic state-based polarization seed based on a dynamic system state or characteristic.

A method and system are provided for facilitating the purchase of a license for a downloaded file of a copyrighted work. In one embodiment, a method for licensing a digital copy of a copyrighted work includes determining an identity of the digital copy by using at least one computer program, calculating a fee for a license for the digital copy by the at least one computer program. The step of calculating includes the step of measuring at least one metric of the digital copy. A license is then provided for the copy after receiving payment of the fee.

The present invention relates to a digital copyright management system based on digital watermarking and mobile agent, comprising six modules, i.e. a digital media server, a copyright owner, a digital work issuer, a consumer, a bill trade center and a mobile agent center. The present invention aims to realize the copyright protection to digital work lifecycle in open networks. The present invention utilizes the distribution and moving characteristics of mobile agent and directly detect digital watermarks on a detected remote host computer, and what is moved by mobile agent is a watermark detection program but not data, thereby the present invention overcomes the overload disadvantage that the prior server and greatly improves the efficiency of copyright protection and tracing.

A method for controlling the release of an as-rendered configuration of a digital work, comprising the steps of presenting said digital work as a composite of a plurality of layers comprising at least a first layer and a second layer; providing a rendering protocol interface which is adapted for defining said as-rendered configuration of the digital work by specifying a first rendering status of said first layer and a second rendering status of said second layer; providing a rendering protocol facility adapted for storing and controlling the release of said first and second rendering status of said first and second layers respectively in accordance with said as-rendered configuration; restricting unauthorized access to the rendering protocol interface, thereby preventing unauthorized modification of said as-rendered configuration; and releasing said digital work with said as-rendered configuration. The method has application in selling books, movies, software, music and other information products. A method of selling a preview version of an information product along with an option of purchase of the original version is described.

An editing apparatus generates a capsular work in which usage conditions for each of plural usages and usage secret information, obtained by encrypting a decryption key encrypted work data with ticket keys which differ depending on usage from each other, are encapsulated together with the encrypted work data. A ticket server apparatus, which manages the usage conditions and the ticket keys, issues a ticket containing a ticket key in the case of allowing a user to practice the usage requested by the user. A distribution center apparatus, which manages the capsular work, distributes the capsular work in accordance with the user's request. An audiovisual apparatus acquires the capsular work from the distribution center apparatus and requests the ticket necessary to make use of the capsular work from the ticket server apparatus. The audiovisual apparatus decrypts the encrypted work data contained in the capsular work and reproduces the work data only in the case where the audiovisual apparatus has acquired the ticket.

A method and system for a website to detect unauthorized transmission of digital works. In one embodiment, the method includes obtaining data pertaining to content transmitted during a data transmission transaction, sending the data pertaining to the transmitted content to a copyright detection system, and receiving, from the copyright detection system, information indicating that at least a portion of the transmitted content corresponds to at least a portion of one of multiple registered works. The information also specifies one or more business rules associated with this registered work. The method further includes performing one or more actions with respect to the transmitted content, where the actions are defined by the business rules associated with the above registered work.

Flags are used to mark portions of content in a digital work to permit marking or demarcation of portions of the document. The demarcated portions can be handled in various ways. For example, different usage rights can be applied to demarcated portions, the demarcated portionis can be culled for use as a summary, or the like. The flags can be used to demarcate portions of content that has been downloaded to keep track of payment and download status and thus add flexibility to electronic distribution of content. A flag usage rights element can be attached to limit and control access to flags in a desired manner.

A system includes of a main device and a recording medium device. The main device includes a reception unit that receives a digital work from an external distribution server, an internal storage area for storing the digital work, a playback unit that plays back the digital work, and a unique information storage area for storing information that is unique to the main device. The main device also includes an encryption unit that encrypts the digital work using the unique information, a decryption unit that decrypts, using the unique information, the encrypted digital work having been read from the recording medium device, a write unit that writes the encrypted digital work into the recording medium device which is portable, and a read unit that reads the encrypted digital work from the recording medium device.

Digital work adapted to be distributed within a system for controlling at least one of the distribution and use of digital works. The digital work includes: digital content representing a portion of a digital work suitable for being rendered by a rendering device and usage rights associated with the digital content. The usage rights specify a manner of use indicating one or more stated purposes for which the digital work can be at least one of used and distributed by an authorized party.

A method of managing an access right to at least one asset associated with at least one digital work order, to at least one first element associated with the at least one asset, or to at least one second element associated with an access path to the at least one asset or the first element, and relates to a system and a computer program for the same.

A system and method for preventing unauthorized use of digital contents such as, but not limited to, music, movies, videos and computer games, henceforth referred to as “digital content” or “digital content”. The present invention protects the digital content by reformatting said digital content such that, the rendering context of the said digital content is lost. The rendering context that was removed by the reformatting process is then protected from unauthorized use such that only authorized users/computing devices can recover the rendering context and use it to render the protected digital content.

A method, system, and device for handling creation of derivative works and for assigning usage rights to the derivative works for enforcing usage rights associated with digital works, including detecting computer-related events that are indicative of manipulations of an original work for creating a derivative work; and maintaining a history of information, including at least one of rights associated with electronic content related to each of the events, origin of electronic content related to each of the events, and event related information that can be used to determine the origin of and rights associated with electronic content.

A repository for storing digital works and controlling the use of digital works in accordance with usage rights associated with the digital works and including a manner of use for the digital work. The repository receives requests for digital works and determines whether a request for a digital work should be granted based on usage rights associated with the digital work. The repository can include a device for storing digital works. The device can be a removable storage device. Alternatively, the entire repository can be removable.

In a system composed of a recording apparatus that records digitized content such as a movie, or a reproduction apparatus that reproduces the digitized content, and a recording medium, a media key for use in recording or reproduction is encrypted by a plurality of device keys and recorded on the recording medium. Here, the recording apparatus or the reproduction apparatus specifies the encrypted media key that it is to decrypt, from amongst the plurality of encrypted media keys. A key management apparatus records node revocation patterns assigned to nodes in a tree structure to the recording medium in a particular order, as header information of key information, together with the encrypted media keys. The recording apparatus or the reproduction apparatus specifies the encrypted media key to be decrypted, by analyzing the node revocation patterns sequentially.

A storage-medium rental system includes a portable storage medium to be rented to the user, a portable semiconductor memory owned by the user, a rental-shop apparatus owned by the rental agent, and a reproduction apparatus owned by the user. The storage medium prestores encrypted content which is generated by encrypting digital work by using a content encryption key. The semiconductor memory has an area for securely storing a content decryption key. The rental-shop apparatus stores a content decryption key for decrypting the encrypted content. The rental-shop apparatus writes the content decryption key to the semiconductor memory. The reproduction apparatus securely reads the content decryption key from the semiconductor memory, reads the encrypted content from the storage medium, decrypts the encrypted content by using the content decryption key, and reproduces the decrypted content.

A system and method for preventing the transfer of illicit digital files employs a digital watermark detector and gateway to control the transmission and delivery of electronic files. The system blocks transmission and reception of a digital file upon detecting a watermark, where the presence of a watermark indicates that the digital file has been illegitimately copied or distributed in violation of a content owner's rights.