Abstract: Methods and apparatuses for time-based access to digital content are provided. Access to a set of digital content is provided for a predetermined period of time. During the predetermined period of time, a user can access (e.g., download, play) any digital content in the set of digital content. At the end of the predetermined period of time, the user is denied access to the digital content regardless of where the content is stored (e.g., in a digital content library, on a computer system controlled by the user, on a playback device controlled by the user). Simplified access and control of digital content is thereby provided in the form of time-based access.

Abstract: A computer network based digital information library system employing authentication and encryption protocols for the secure transfer of digital information library programs to a client computer system and a mobile digital information playback device removably connectable to the client computer system. The present invention is a computer network based library and information delivery system for accessing and obtaining selected digital information files.

Abstract: A method and protocol for creating and configuring customized paths, such as channels, for the delivery of electronic content to a variety of devices associated with a user is provided. A content provider may create a channel for each device registered by a user by creating a provisioning Uniform Resource Locator (“URL”) for each device. The user may select certain content to be delivered to a registered device via the channel. The user's device requests a list of feed URLs available to the user by accessing the provisioning URL. A content management program returns the list of feed URLs to the device and the list of feed URLs stored on the device is updated. The electronic content may be distributed through the disclosed protocol directly to the registered device if the device is active, or to a computing device for distribution to passive devices. A user, content provider or other entity may manage the delivery of the feeds contained in the channels using a web-based control panel or other application.

Abstract: Systems and methods for customized content delivery are provided. Customized and individualized electronic content over a network are included. The content delivered through content feeds may be specifically tailored to a specific user based numerous criteria including, but not limited to, attributes of a user, usage characteristics, subject matter of previous downloads, subscription details, and targeted advertising. The content provider may track and monitor the download characteristics of individual users and adapt the content delivered in the feeds.

Abstract: A computer network based digital information library system employing authentication and encryption protocols for the secure transfer of digital information library programs to a client computer system and a mobile digital information playback device removably connectable to the client computer system. The present invention is a computer network based library and information delivery system for accessing and obtaining selected digital information files.

Abstract: A method and apparatus for secure streaming of digital audio/visual content is disclosed. Secure streaming provides protection against unauthorized use of the digital content. Authorization and integrity checks are performed by a client or playback device on a set of data associated with digital content to be played. The set of data includes authorization and integrity information for content to be received from the source. Streamed content is received from the source by the playback device. The streamed content is intermittently checked for authorization and integrity. If the check is passed, playback continues; otherwise playback is halted.

Abstract: A method and apparatus for digital content license management is disclosed that provides one or more license management devices that manage licenses for playback of digital content. The license management devices create licenses having an associated cardinality that determines the number of playback devices that can be authorized by the license. The license is stored in a set of playback devices, where the number of playback devices in the set corresponds to the cardinality of the license. The license is also included in digital content that the license authorizes for playback. Playback devices that have a license that matches a license included in the digital content are authorized to play the digital content. A single license can be used to provide authorization to play digital content from multiple sources and/or multiple types of content.

Abstract: A method and apparatus for secure streaming of digital audio/visual content is disclosed. Secure streaming provides protection against unauthorized use of the digital content. Authorization and integrity checks are performed by a client or playback device on a set of data associated with digital content to be played. The set of data includes authorization and integrity information for content to be received from the source. Streamed content is received from the source by the playback device. The streamed content is intermittently checked for authorization and integrity. If the check is passed, playback continues; otherwise playback is halted.

Abstract: A method and apparatus for personalized time-shifted programming. Digital content is retrieved, for example, from a digital library. Once retrieved, the content is stored locally, for example, on a personal computer. The locally stored content is transferred, in whole or in part, to a playback device that allows a user to listen to the content of the playback device. In one embodiment, the user may designate portions of a playback time provided by the playback device to various selections. For example, with a playback device that provides two hours of content, a user may wish to listen to one half hour of news, one half hour of a series and one hour of an book. Thus, the user may partition one quarter of playback time to each of news and the series and one half of the playback time to the book. In one embodiment, the present invention provides different automatic update techniques for the playback device that may be selected by the user based on how the content is to be used.

Abstract: A method and apparatus for personalized time-shifted programming. Digital content is retrieved, for example, from a digital library. Once retrieved, the content is stored locally, for example, on a personal computer. The locally stored content is transferred, in whole or in part, to a playback device that allows a user to listen to the content of the playback device. In one embodiment, the user may designate portions of a playback time provided by the playback device to various selections. For example, with a playback device that provides two hours of content, a user may wish to listen to one half hour of news, one half hour of a series and one hour of an book. Thus, the user may partition one quarter of playback time to each of news and the series and one half of the playback time to the book.

Abstract: A method, apparatus, and article of manufacture for targeting a digital information playback device. A device ID and or a group ID is embedded in the playback device. A device ID or a group ID is also embedded in a digital information file. Upon receiving the digital information file, the device ID or the group ID of the playback device is compared to that contained in the digital information file. The digital information file is then played if either the device ID or the group ID of the digital information file matches that of the playback device.

Abstract: A method and apparatus for cloning protection of a player. The present invention provides a method and apparatus for providing cloning protection of a software digital information playback device by using an activation procedure prior to use of the playback device. In one embodiment, the playback device is deactivated in order to move the playback device to a different computer system or to otherwise vary the operating conditions of the playback device. To activate the playback device a unique identifier is generated by the playback device. The identifier is communicated to a server and linked to the playback device generating the identifier. In one embodiment, the identifier and a digital signature authenticating the information from the server are communicated to the playback device along with any digital programming. Only digital programming including the identifier and the signature are played by the playback device.

Abstract: The present invention provides a user programmable entertainment method and system that provides varied and ongoing custom entertainment services. The method of the present invention provides an entertainment signal comprising a sequence of discrete expressive works to an end user. The discrete expressive works represented in the entertainment signal may be either specifically requested by the user or selected according to user-specified parameters. According to the present invention, a user defines a sequence of user preference items which together comprise a user preference signal. The user preference signal is then communicated to a remotely located program processor. The program processor selects a plurality of discrete expressive works that conform to the user preference item definitions. An entertainment signal comprising the selected expressive works is then communicated over a communication link to the receiving means located in the user node.

Abstract: Described is a technique for an interactive television ("ITV") system wherein viewers are allowed to select a desired level of advertisements with which they are provided. The technique comprises transmitting to a interactive services subscriber location a program and a set of advertisements (collectively referred to as a "show"). The set of advertisements is selected based upon an input from a user associated with the interactive services subscriber location. The input comprises an indicator of an amount of advertisements in the set of advertisements. Another feature of the ITV system described is that it allows for adjusting an amount of a bill of a subscriber to interactive television services based upon the amount of advertisements viewed in a show.

Abstract: A method of using finite state machines (FSMs) is disclosed for controlling multiple processes in response to input signals. In an exemplary embodiment, such processes comprise facilities for providing interactive television services and multimedia signals for such services. The FSMs are arranged in a tree-like structure and communicate with each other by event messages of various types. Each FSM has multiple states and permitted state transitions. Transitions occur in response to event messages and/or input signals, and a transition can cause one or more event messages associated with such transition to be sent. At least one terminal FSM is associated with each of the multiple processes and controls that process. Status changes in each process can also cause state transitions in the FSMs. The FSMs are resident in the various processors controlling the multiple processes, which can be situated at different locations.

Abstract: Character string recognition and identification is accomplished with a combined, multi-phase top-down and bottom-up process. Characters in an applied signal are recognized with a process that employs a knowledge source which contains information both, about the basic elements in the signal and about strings of the basic elements in the signal. The knowledge source, which may be derived from a training corpus, includes word probabilities, word di-gram probabilities, statisitics that relate the likelihood of words with particular character prefixes, and rewrite suggestions and their costs. Higher level word n-grams, such as word tri-gram probabilities, can also be used. A mechanism is provided for accepting words that are not found in the knowledge base, as well as for rewrite suggestions that are not in the knowledge base.

Abstract: An electronic library which comprises a user interface such as a computer screen, a speaker, a mouse and/or a keyboard; a processor for handling communication with the user and for responding to user requests; and a data store. The data store maintains scanned segments of video data, audio data, or both, and translated replicas of the scanned segments. Searching for specific data is performed by perusing through the translated replicas, but the information that is provided to the user is primarily the scanned segments themselves. The translated versions contain the immediately translatable version of the displayable information and processed information that forms various aggregations of the displayable information. This processing imposes a syntactically logical structure on the displayable information.