BACKGROUND

This invention pertains generally to the field of generating interactive programming and more specifically to generating and transmitting interactive programming including participants' interactions over a communication network.

Broadcast media, such as television, have traditionally been limited to serial processes where a program is broadcast to a viewer in an audience with limited opportunities, such as calling in over a telephone line to talk to a talk show host, for the viewer to participate in the program. The evolution to a more interactive form of broadcast media, or media where the viewer is allowed to participate, has been slow given the lack of bidirectional communication channels between the viewer and the program broadcaster.

When bidirectional communication channels are created, viewer participation has so far been limited to choosing program content, responding to advertising messages, and answering viewer questionnaires or polls. This is primarily because most interactive programming follows a conventional broadcast program paradigm wherein the programming is wrapped in advertisements; and the only responses needed from an audience are to view linear pre-recorded programs and to buy advertised items or services. Little has been done to fully involve the audience in a rich participatory experience where the audience has as much control and influence over the content of an interactive program as the originator of the interactive program. Such limited viewer participation is in contrast to the expectations of some viewers who want a richer and more satisfying participatory experience within the context of an interactive program.

Therefore, a need exists for a light-weight interactive programming system allowing for rich viewer participation which is easily integrated with existing content. The present invention meets such need

Some television programs include captioning information created by the television program broadcaster. The captions are encoded into the television signal and broadcast to a viewer's television where the captions are extracted from the television signal and displayed on the viewer's television screen. The captions are intended for the hearing impaired and contain textual representations of the auditory components of a television broadcast. While intended for the hearing-impaired, captions are used in a variety of situations. For example, the captions may be used in lieu of the audio components of the television signal so that viewers can still watch television in environments where the noise levels are very high, for example in a gymnasium.

The captioning for a television program include a textual representation of the entire contents of the television program since the captions are intended as a complete replacement for the audio components of a television program. This aspect of captions makes the captions useful for a variety of other purposes. For example, the captions can be used to create transcriptions of a television program for archival purposes. In addition, the captions provide a compact representation of the complete television program. Finally, a description or metadata may be generated for a television program using the caption information. These different uses for captioning data make captioning an attractive source of information and content for people desiring to form special interest groups or communities around particular television programs. For example, a commentator may want to create a talkshow to explore news items included in a televised news report. Such a talkshow would allow viewers and a commentator to fully explore news items within the context of a news broadcast.

Therefore, a need exists for an interactive program generation tool allowing the creation of a talkshow from captioning data. Such a tool should be lightweight, meaning it does not require a lot of processing resources to run, and should be able to generate interactive programming for a variety of different display devices. The present invention meets such a need.

Television has traditionally been a serial process where a television program having a series of images and sounds are broadcast to a viewer in an audience with limited opportunity for the viewer to participate in the television program. The evolution to a more interactive form of television, or television where the viewer is allowed to participate, was slow given the lack of bidirectional communication channels between the viewer and the television program broadcaster. When bidirectional communication channels were created, they tended be of insufficient bandwidth for communication of complex viewer interactions with the television program.

Development of a nearly ubiquitous communications network, namely the Internet, has greatly expanded the use of interactive television. However, viewer participation has so far been limited to choosing television content, responding to advertising messages, and answering viewer questionnaires or polls. This is primarily because most interactive television programming follows a conventional television paradigm wherein the television programming is wrapped in advertisements; and the only responses needed from an audience are to watch linear pre-recorded programs and to buy advertised items or services. Little has been done to fully involve the audience in a rich participatory experience where the audience has as much control and influence over the content of an interactive program as the originator of the interactive program. This is in contrast to the expectations of some viewers who want a richer and more satisfying participatory experience within the context of an interactive program.

Some interactive television formats also have a disadvantage in that, although they may use the Internet as a bidirectional communication channel, the interactive television format is dependent upon set-top-boxes and middleware that a viewer either purchases or leases from a broadcaster such as a cable operator. While these devices may have a variety of functional features, they may require an additional expenditure that a viewer or a Multiple Systems Operator (MSO) may not want to incur, especially if the viewer already has an Internet-enabled device such as a home computer. This makes most existing interactive television programming “heavy” in the sense that specialized hardware is needed to take advantage of the interactive content embedded in an interactive programming signal. Additionally, the combination of a required set-top-box and specialized interactive television formats make interactive programming distributed over an interactive television network difficult to integrate with conventional Web content such as Web pages available from a Web site.

Therefore, a need exists for a light-weight interactive programming system allowing for rich viewer participation which is easily integrated with existing content. The present invention meets such need.

SUMMARY

In one aspect of the invention, an interactive programming server embeds interactive components into a video signal. The interactive programming server receives content from a content source and interactive components from an interactive component source and uses the content and interactive components to generate an interactive Video On Demand (iVOD) interactive program. The iVOD interactive program is transmitted through a communications medium to a participant who views the content and interacts with the interactive components of the iVOD interactive program. The participant's responses to the content is transmitted back to the interactive programming server where the participant responses are incorporated into new content which is used to generate new iVOD interactive programming.

In another aspect of the invention, the content is a television signal having a vertical blanking interval and the interactive program is generated by embedding the interactive component in the vertical blanking interval.

In another aspect of the invention, the content is a digital video signal and generating the interactive program includes encapsulating the interactive components in a first elementary stream of a digital video broadcast transport stream and adding the content to a second elementary stream of the video broadcast transport stream.

In another aspect of the invention, the communications medium may be a cable television network, a satellite television network, or a wide area network.

In another aspect of the invention, the participant response includes an audience approval rating of the interactive program.

In another aspect of the invention, the participant response includes an answer to a poll question.

In another aspect of the invention, the interactive component includes additional information about the content.

In another aspect of the invention, the interactive component is a uniform resource locator of a resource coupled to the interactive programming transceiver through a wide area network. The resource may be a Web site where a participant can complete a commercial transaction such as purchasing an advertised product.

In another aspect of the invention, the interactive component includes an advertisement.

In one aspect of the invention, an interactive program includes moderator content generated by the moderator and edited participant commentary that is served by a moderator server. Moderators create and manage interactive programs using a Web site. Viewers register to be participants in interactive programs using the Web site as well. The interactive programs can be distributed as electronic documents written in a markup language such as HTML or XML over the Internet. The interactive programs can also be converted to conventional interactive television content for distribution over an interactive television network. The interactive programs can also be distributed over a Virtual Private Network (VPN) for use as a secure collaboration tool by an enterprise such as a business concern. The interactive programs require few processing resources so the interactive programs can be embedded within other Web processes such as electronic commerce (e Commerce) or television commerce (t-Commerce) transactions.

In another aspect of the invention, a method is provided for creating and transmitting an interactive program over a communications network. A moderator server is operably coupled to the communications network. A moderator client and a plurality of viewer clients are operably coupled to the moderator server via the communications network. In operation, participant comment signals are received by the moderator server via the communications network from the plurality of viewer clients and transmitted by the moderator server via the communications network to the moderator client. The moderator server then receives from the moderator client edited participant comment signals and moderator signals and generates interactive program signals using the edited participant comment signals and the moderator signals. The interactive program signals are then transmitted by the moderator server via the communications network to the plurality of viewer clients.

In another aspect of the invention, a data processing system is adapted for creating and transmitting an interactive program to a plurality of viewer clients as described above. In addition, the data processing system receives content signals from a content server and generates the interactive program signals using the content signals, edited participant comment signals, and the moderator signals.

In another aspect of the invention, the data processing system receives content signals from a content server and transmits the content signals via the communications network to the viewer clients while incorporating the content signals into the interactive program.

In another aspect of the invention, the communications network is a virtual private network thus enabling private and secure transmission of an interactive program throughout an enterprise.

In another aspect of the invention, the participant comment signals further include an interactive program rating signal indicating a level of audience satisfaction with the interactive program.

In another aspect of the invention, the moderator signals further include a participant exclusion signal corresponding to a specific viewer client from the plurality of viewer clients. The participant exclusion signal is used to exclude participant comments received from the specific viewer client thus preventing specified viewers from participating in the interactive program.

In one aspect of the invention, a caption and program information extractor monitors a broadcast media signal having captions and program information encoded in the broadcast media signal. A caption and program information extractor monitors a broadcast media signal having captions and program information encoded in the broadcast media signal. The captions and program information are extracted and stored in a content database. A moderator accesses the content database to retrieve captions and for a program specified by the program information. The moderator uses the services of a moderator server to generate interactive programming from the captions and the moderator's own comments. The interactive programming is transmitted to a plurality of viewers who interact with the interactive programming by entering viewer comments. The viewer comments are received by the moderator along with additional captions and new interactive programming is generated using the viewer comments, additional captions, and additional moderator commentary.

In one aspect of the invention, a method for generating an interactive program for transmission over a communications network is provided. A caption and program information extractor extracts captions and program information from a broadcast media signal and puts the captions and program information in a content database. A moderator server is coupled through the communications network to a moderator client and a plurality of viewer clients. The moderator server receives moderator comments and edited viewer comments from the moderator client through the communications network and gets captions and program information from the content database. The moderator server then generates interactive programming using the moderator comments, edited viewer comments, program information, and captions and transmits the interactive programming to the viewer clients through the communications network.

In another aspect of the invention, the moderator server receives viewer comments from the viewer clients and transmits the viewer comments to the moderator client through the communications network.

In another aspect of the invention, the communications network used is a virtual private network.

In another aspect of the invention, the viewers rate an interactive program by further including an interactive program rating signal in the viewer comment signals. In response, a moderator may transmit a viewer exclusion signal specifying a viewer client to the moderator server and the moderator server generates the interactive programming using the viewer exclusion signal to exclude viewer comments received from the specific viewer client. In addition, the moderator may transmit a viewer invitation signal corresponding to a specific viewer client to the moderator server and the moderator server generates viewer interactive programming using the viewer invitation signal to include viewer comments from the specific viewer client on a virtual stage.

In another aspect of the invention, an apparatus is provided for generating an interactive program for transmission over a television broadcast network and a communications network. The apparatus includes a content database, a caption and program information extractor coupled to a broadcast media signal source and the content database, and a moderator server coupled to a moderator client, the content database, and the television broadcast network. The moderator server includes a processor and a memory operably coupled to the processor. Program instructions stored in the memory are executed by the processor to implement the features of an interactive programming generation system. The program instructions include: receiving moderator comments and edited viewer comments by the moderator server from the moderator client; getting captions and program information by the moderator server from the content database; generating viewer interactive programming using the moderator comments, edited viewer comments, program information, and captions; and transmitting the interactive programming by the moderator server to viewer televisions through the television broadcast network.

In another aspect of the invention, the moderator server is further coupled to a plurality of viewer clients through the communications network. The program instructions further include receiving viewer comments by the moderator server from viewer clients through the communications network and transmitting the viewer comments by the moderator server to the moderator client through the communications network.

In another aspect of the invention, an apparatus for generating an interactive program for transmission over a television broadcast network is provided. The apparatus includes a content database and a caption and program information extractor coupled to a broadcast media signal source. The caption and program information extractor extracts captions and program information from a broadcast media signal and puts the captions and program information in the content database. A moderator server is coupled to a moderator client through the communications network and coupled to the content database. The moderator server is further coupled to the television broadcast network. The moderator server includes programming instructions for generation of interactive programming from the captions and program information. The moderator server receives moderator comments and edited viewer comments from the moderator client through the communications network and gets captions and program information from the content database. The moderator server then generates interactive programming using the moderator comments, edited viewer comments, program information, and captions and transmits the interactive programming to viewer televisions through the television broadcast network. In another aspect of the invention the moderator server is further coupled to a telephony network and viewers communicate with the moderator server through the telephony network.

