Abstract: The invention, electronic book security and copyright protection system, provides for secure distribution of electronic text and graphics to subscribers and secure storage. The method may be executed at a content provider's site, at an operations center, over a video distribution system or over a variety of alternative distribution systems, at a home subsystem, and at a billing and collection system. The content provider or operations center and/or other distribution points perform the functions of manipulation and secure storage of text data, security encryption and coding of text, cataloging of books, message center, and secure delivery functions. The home subsystem connects to a secure video distribution system or variety of alternative secure distribution systems, generates menus and stores text, and transacts through communicating mechanisms. A portable book-shaped viewer is used for secure viewing of the text.

Abstract: Several cable headend configurations that utilize digital technology are disclosed. The present invention provides greater capability and flexibility than existing cable headends. Specifically, a modular design for a cable headend and a combiner component for cable headends are disclosed. The invention is particularly useful in cable television program delivery systems transponding large numbers of digitally compressed program signals. The combiner disclosed allows cherry-picking of programs from transponded signals.

Abstract: A novel advanced set top terminal capable of digital decompression, displaying picture-on-picture, outputting multiple video channels, outputting multiple audio signals, outputting multiple audio channels corresponding to a single video channel, and other advanced functional capabilities for use in a television program delivery system is described. The invention relates to methods and apparatus for upgrading existing set top terminals to provide these advanced functional capabilities. The invention is particularly useful in television program delivery systems providing advanced functional capabilities using a set of hardware upgrades and/or an expansion card. Specifically, the invention is an ungradable system that supports displaying picture-on-picture, multiple video channels, multiple audio signals and multiple audio signals corresponding to a single video channel, among other features and capabilities through the use of internal software, hardware upgrades, an upgrade module and/or expansion cards.

Abstract: This invention is a method of allocating bandwidth for a television program delivery system. This method selects specific programs from a plurality of programs, allocates the selected programs to a segment of bandwidth, and continues to allocate the programs until all the programs are allocated or all of the available bandwidth is allocated. The programs may be selected based on a variety of different factors or combination of factors. The selected programs may also be prioritized so that higher priority programs are distributed before lower priority programs in case there is not enough bandwidth to transmit all of the programs. This invention allows a television program delivery system to prioritize a large number of television programs and distribute these programs based on their priority levels. The invention also permits a television program delivery system to dynamically allocate bandwidth over time or based on marketing information, such as consumer demand.

Abstract: A method and an apparatus are used to target virtual objects to subscribers in a television delivery system. Programs are selected and virtual object locations are defined in the selected programs. The virtual objects available for targeting are categorized and the categories are correlated to subscriber information to determine the optimum targeting of the virtual objects. The virtual objects may be targeted based on individual subscriber information or on information related to groups of subscribers. When a frame of a program includes a virtual object location, a default or an alternate virtual object is displayed. The virtual object location may change over space or time. The virtual object may be interactive, and may be used to link a subscriber to a remote location, such as an Internet web site. An operations center or a cable headend may generate a group assignment plan that assigns the subscribers' television terminals to groups, based on factors such as area of dominant influence and household income.

Abstract: A method and a system for selecting and ordering broadcast programs uses an electronic program guide that may be broadcast to subscribers or posted on an Internet web site. The system allows national broadcasters to provide one or more channels of pay-per-view or subscription programming and to establish a mechanism for billing subscribers who access the programs. Subscribers may access the Internet and send a program request to a web site. An authorization is then forwarded to a billing center and to a local broadcaster. The billing center debits the subscriber's account, or prepares a bill. The local broadcaster sends the authorization to the subscriber. The authorization includes a program code and a terminal identifier that permit the subscriber's television or set top terminal to decrypt and display the program.

Abstract: A menu-driven television program access system and method provide a menu structure that allows subscribers to select and view television programming and other services. The menu structure lists programs by program category or by chronological order of broadcast. The subscriber scrolls the menus until a desired program identifier, such as a title and date/time of broadcast is found. The subscriber then operates a “go-button” on a remote control to select the desired program. In response to operation of the “go-button,” a set top terminal turns to a channel carrying the selected program.

Abstract: The invention relates to apparatus and methods for upgrading a set top terminal for use with a cable television program delivery system. A hardware upgrade or expansion card is connected to a set top terminal to enhance the functionality of the set top terminal and to allow the set top terminal to receive digital audio programs. The hardware upgrade includes audio signal processing circuitry such as a tuner, demodulator, demultiplexor, decryptor, and decompressor. A microprocessor in the hardware upgrade enables the upgrade to accept subscriber inputs so as to select a particular digital audio program for listening. Subscriber inputs may be generated from a remote control and a menu system of the set top terminal.

Abstract: A method and an apparatus suggests programs for viewing by a subscriber. Terminals installed at a subscriber's home and at central locations, such as bookstores, video rental stores and libraries, provide responsive or intelligent search functions to suggest programs for viewing according to a subscriber's viewing preferences. Responsive searching includes posing questions to and receiving answers from the subscribers. Intelligent searching includes gathering historical data, such as the subscriber's history of programs watched. The programs include videotapes, videodiscs, television programs and electronic books. Subscribers indicate their selection and order the programs using a menu system. An automated billing system tracks the programs ordered.

Abstract: A viewer interface for a television program delivery system is described. The innovation relates to methods and devices for viewer pathways to television programs. Specifically, the interface involves hardware and software used in conjunction with a television at the viewer home to create a user friendly menu based approach to television program access. The device is particularly useful in a program delivery system with hundreds of programs and a data signal carrying program information. The disclosure describes menu generation and menu selection of television programs.

Abstract: A system and method for switching targeted advertisements is described. In one embodiment one primary advertisement is assigned to a first channel, where the first channel carries a program. At least one alternate advertisement is assigned to one or more alternate channels. Selected set top terminals switch to one or more of the alternate channels to display alternate advertisements, where the selection of the alternate channel is based on information related to users of the set top terminals.

Abstract: A novel network controller for use with a digital cable headend capable of monitoring and controlling set top terminals in a television program delivery system is described. The invention relates to methods and apparatus for a network controller that manages a configuration of set top terminals in a program delivery system. The invention is particularly useful in program delivery systems with hundreds of channels of programming, a menu driven program selection system, and a program control information signal that carries data and identifies available program choices. Specifically, the invention modifies a program control information signal at the cable headend before the modified signal is transmitted to each set top terminal. This signal is used with polling methods to receive upstream data from the set top terminals. The invention initiates such upstream data retrieval, gathers all data received and compiles viewer demographics information and programs watched information.

Abstract: The present invention relates to a method and apparatus for communicating multiple live video feeds over the Internet. Users may be able to view a plurality of remote locations in real time. In one embodiment, text, graphics, and other video information supplement one or more video pictures to provide an educational and entertaining system. In accordance with the present invention, information is accessible to users who are viewing multiple video pictures. The information relates and describes what is being viewed. Users who have different types of equipment, with different data rates, are able to access and use the system of the present invention. In another embodiment, users may interactively communicate with a video lecturer by asking questions and receiving answers. The invention may be connected to, and in communication with, broadcast and/or cable television systems.

Abstract: The present invention relates to a method and apparatus for communicating multiple live video feeds over the internet. Users may be able to view a plurality of remote locations in real time. In another embodiment of the invention, users are able to remotely control a video picture of a distant location. The remote control may be either actual control of a remote video camera or perceived remote control by the manipulation of audiovisual data streams. In one embodiment, text, graphics, and other video information supplement one or more video pictures to provide an educational and entertaining system. In accordance with the present invention, information is accessible to users who are viewing multiple video pictures. The information relates and describes what is being viewed. Users who have different types of equipment, with different data rates, are able to access and use the system of the present invention.

Abstract: A novel multiple channel architecture is designed to allow targeted advertising directed to television terminals connected to an operations center or a cable headend. Advertisements are displayed during commercial breaks in the television programs. Such advertisements may be broadcast on the same channel as the television program. In addition, feeder channels may carry alternate advertising that may be better suited for certain viewing audiences. The operations center or the cable headend generate a group assignment plan that assigns the television terminals to groups, based on factors such as area of dominant influence, household income and other demographic data, and programs watched data gathered by the television terminals. A switching plan is then generated that instructs the television terminals to remain with the program channel or to switch to one of the alternate feeder channels during the program breaks.

Abstract: A terminal for a television program delivery system is described. The terminal stores programs locally. The terminal includes a first input port, located on an external face of the terminal, that receives information, a second input port, located on an external face of the terminal that receives a program signal having one or more programs including video, a memory in which the program signal is stored, a microprocessor that executes instructions that prompt display of the information, and a means for transmitting the information to a display device. The terminal may receive a reprogramming signal that contains new instructions. The new instructions may be instructions for reprogramming the terminal.

Abstract: A portable electronic book viewer receives electronic text and graphic files, or electronic books, by connection to a television program delivery system. The electronic books may provided as compressed data that is transmitted with a video signal. The electronic books are transmitted in the vertical blanking interval of the video signal. The electronic books may be received at a set top terminal, and stored in memory at the set top terminal. A hardware upgrade may be added to a conventional set top terminal to provide for reception, storage and processing of the electronic books. Such storage may be by way of a hard disk, a floppy disk, an optical disk, and a magnetic cartridge for example. The portable viewer may receive the electronic books from the set top terminal. The portable viewer may then decompress the electronic books for display and viewing. The electronic books are decompressed only at the time of viewing.

Abstract: An Operations Center for television entertainment systems that provide television programming to consumer homes is disclosed. The Operations Center organizes and packages television programming and program information for delivery to and from consumer homes. The Operations Center includes a computerized packaging system for creating a program control information signal.

Abstract: A viewer interface for a television program delivery system is described. The innovation relates to methods and devices for viewer pathways to television programs. Specifically, the interface involves hardware and software used in conjunction with a television at the viewer home to create a user friendly menu based approach to television program access. The device is particularly useful in a program delivery system with hundreds of programs and a data signal carrying program information. The disclosure describes menu generation and menu selection of television programs.

Abstract: The invention, an electronic book selection and delivery system, is a new way to distribute books and other textual information to bookstores, libraries and consumers. The primary components of the system are a subsystem for placing text in a video signal format and a subsystem for receiving and selecting text that is placed in the video signal format. The system configuration for consumer use contains additional components and optional features that enhance the system, namely: (1) an operation center, (2) a video distribution system, (3) a home subsystem, including reception, selection, viewing, transacting and transmission capabilities, and (4) a billing and collection system. The operation center and/or video distribution points perform the functions of manipulation of text data, security and coding of text, cataloging of books, messaging center, and uplink functions.