Abstract: A program guide in which a video layer includes a plurality of video objects including title objects, each title object having associated with it a channel and at least one time slot, the video layer being formed in response to a received video stream and a graphics layer comprising a plurality of graphics objects including title overlay objects, each of the title overlay objects selectively imparting at least a visual de-emphasis to a respective title object in the video layer, the visual de-emphasis being imparted to title objects not being associated with a desired time slot.

Abstract: A program guide in which a video layer includes a plurality of video objects including title objects, each title object having associated with it a channel and at least one time slot, the video layer being formed in response to a received video stream; and a graphics layer comprising a plurality of graphics objects including title overlay objects, each of the title overlay objects selectively imparting at least a visual de-emphasis to a respective title object in the video layer, the visual de-emphasis being imparted to title objects not being associated with a desired time slot.

Abstract: A program guide in which a video layer includes a plurality of video objects including title objects, each title object having associated with it a channel and at least one time slot, the video layer being formed in response to a received video stream and a graphics layer comprising a plurality of graphics objects including title overlay objects, each of the title overlay objects selectively imparting at least a visual de-emphasis to a respective title object in the video layer, the visual de-emphasis being imparted to title objects not being associated with a desired time slot.

Abstract: Techniques to create, generate, and deliver customized interactive program guide (custom-IPG). In one embodiment, selections indicative of a set of channels to be included in the custom-IPG are received. In response, one or more custom-IPG screens including the set of selected channels are rendered at a headend. Custom-IPG screens can be formed as subsets of the regular IPG screens, or as new screens. The rendered custom-IPG screens are provided from the head end to a set top terminal upon receiving a viewer request for the custom-IPG. Commands indicative of a particular location at which to overlay the custom-IPG screens may also be received, and the custom-IPG screens are re-rendered at the indicated location. Custom-IPG screens can be overlaid on a video sequence provided on a particular channel being viewed, used to carry regular program guide, or a channel independent of the channel used to carry regular programming and program guide.

Abstract: A terminal for decoding and presenting encoded realtime and non-realtime interactive program guide (IPG) content including a realtime video portion and a non-realtime guide graphics portion. The terminal includes a demodulator operative to receive and demodulate a modulated signal to provide a transport stream, and a transport demultiplexer coupled to the demodulator and operative to receive and process the transport stream to provide a sequence of transport packets re-timestamped to synchronize encoded realtime content and encoded non-realtime content included therein. At least one video decoder is coupled to the transport demultiplexer and operative to receive and decode the encoded realtime and non-realtime contents to recover the realtime and non-realtime contents for the user interface.

Abstract: Methods for slice-based encoding of program guides and user interfaces. The program guides include multiple video streams for picture-in-picture and other applications. A method for encoding the program guide includes encoding a first set of slices for each of a plurality of graphics pages; and encoding a second set of slices for each of a plurality of video streams. The user interfaces are multi-functional and may be used for electronic commerce and other applications. A method of generating the user interface includes encoding a set of slices for each of a plurality of objects, each object being characterized by an identity, at least one attribute, and at least one operation. In one embodiment of this method, the plurality of objects include an electronic commerce object, where the electronic commerce object is attributed with a first hyper text markup language (HTML) page.

Abstract: Techniques to efficiently deliver interactive program guide (IPG) to a number of terminals. Each IPG page can be decomposed into a guide portion that is specific to each IPG page and a background portion that is common for all IPG pages. The background portion can be further decomposed into a time-varying video portion and other static portions. One method includes receiving a viewer selection for imagery, where the imagery includes at least one intracoded slice and at least one predictively coded slice, and each of the intracoded and predictively codes slices are associated with respective bitstreams. Packets from the at least one bitstream corresponding to the at least one intracoded slice of the selected imagery are extracted, and packets from the at least one bitstream corresponding to the at least one predictively coded slice of the selected imagery are also extracted. The payload portions of the extracted packets are then arranged to form the selected imagery.

Abstract: Encoding program guides and user interfaces, which may include multiple encoded videos and multiple encoded graphics, is disclosed. The encoded videos may be combined together as an encoded composite video that is decoded to produce a display screen having each of the videos presented in a different region. Further, each one of the encoded videos may be combined with each one of the encoded graphics to form a second encoded composite video that is decoded to produce a display screen having graphic data presented in one region and a video presented in another region of the display screen.

Abstract: A terminal for decoding and presenting encoded realtime and non-realtime interactive program guide (IPG) content including a realtime video portion and a non-realtime guide graphics portion. The terminal includes a demodulator operative to receive and demodulate a modulated signal to provide a transport stream, and a transport demultiplexer coupled to the demodulator and operative to receive and process the transport stream to provide a sequence of transport packets re-timestamped to synchronize encoded realtime content and encoded non-realtime content included therein. At least one video decoder is coupled to the transport demultiplexer and operative to receive and decode the encoded realtime and non-realtime contents to recover the realtime and non-realtime contents for the user interface.

Abstract: A program guide in which a video layer includes a plurality of video objects including title objects, each title object having associated with it a channel and at least one time slot, the video layer being formed in response to a received video stream; and a graphics layer comprising a plurality of graphics objects including title overlay objects, each of the title overlay objects selectively imparting at least a visual de-emphasis to a respective title object in the video layer, the visual de-emphasis being imparted to title objects not being associated with a desired time slot.

Abstract: Techniques to create, generate, and deliver customized interactive program guide (custom-IPG). In one embodiment, selections indicative of a set of channels to be included in the custom-IPG are received. In response, one or more custom-IPG screens including the set of selected channels are rendered at a headend. Custom-IPG screens can be formed as subsets of the regular IPG screens, or as new screens. The rendered custom-IPG screens are provided from the head end to a set top terminal upon receiving a viewer request for the custom-IPG. Commands indicative of a particular location at which to overlay the custom-IPG screens may also be received, and the custom-IPG screens are re-rendered at the indicated location. Custom-IPG screens can be overlaid on a video sequence provided on a particular channel being viewed, used to carry regular program guide, or a channel independent of the channel used to carry regular programming and program guide.

Abstract: A program guide in which a video layer includes a plurality of video objects including title objects, each title object having associated with it a channel and at least one time slot, the video layer being formed in response to a received video stream; and a graphics layer comprising a plurality of graphics objects including title overlay objects, each of the title overlay objects selectively imparting at least a visual de-emphasis to a respective title object in the video layer, the visual de-emphasis being imparted to title objects not being associated with a desired time slot.

Abstract: A terminal for decoding and presenting encoded realtime and non-realtime interactive program guide (IPG) content including a realtime video portion and a non-realtime guide graphics portion. The terminal includes a demodulator operative to receive and demodulate a modulated signal to provide a transport stream, and a transport demultiplexer coupled to the demodulator and operative to receive and process the transport stream to provide a sequence of transport packets re-timestamped to synchronize encoded realtime content and encoded non-realtime content included therein. At least one video decoder is coupled to the transport demultiplexer and operative to receive and decode the encoded realtime and non-realtime contents to recover the realtime and non-realtime contents for the user interface.

Abstract: Techniques to create, generate, and deliver customized interactive program guide (custom-IPG). In one embodiment, selections indicative of a set of channels to be included in the custom-IPG are received. In response, one or more custom-IPG screens including the set of selected channels are rendered at a headend. Custom-IPG screens can be formed as subsets of the regular IPG screens, or as new screens. The rendered custom-IPG screens are provided from the head end to a set top terminal upon receiving a viewer request for the custom-IPG. Commands indicative of a particular location at which to overlay the custom-IPG screens may also be received, and the custom-IPG screens are re-rendered at the indicated location. Custom-IPG screens can be overlaid on a video sequence provided on a particular channel being viewed, used to carry regular program guide, or a channel independent of the channel used to carry regular programming and program guide.

Abstract: A user interface for an interactive information distribution system comprising a graphics region, a video region and a mask/reveal layer. The user interface is generated in a head end of the system as a digital bitstream and transmitted to subscriber equipment for display. Operation of the user interface is facilitated by functions on both a local level with the subscriber equipment and on a system level within the head end. One embodiment of the user interface is an interactive program guide.

Abstract: A system and method for efficient delivery of video segments. One embodiment relates to the delivery of short-time duration video segments. The video segments may be delivered as part of a media-rich interactive program guide (IPG) or for some other application. The system and method provides a viewer with access to a video segment starting at its beginning (or any other selectable point within the video segment). Such access may be provided using a server-centric interactive technique. The server-centric technique may involve use of a demand-cast system and method. Demand-cast messaging may occur between a session manager, transport stream generator, and terminal. For example, a video object on a screen may be activated by a viewer using a remote control for a terminal. Activation of the object may cause transmission of a request from the terminal to a session manager for a video segment corresponding to the object.

Abstract: An apparatus for providing multiple session-based services at a terminal, an exemplary apparatus includes a memory configured to support a plurality of software layers including a service layer communicating with terminal resources via a root layer disposed therebetween; and a processor, for executing instructions associated with a plurality of service layer applications, a root layer application and a control mechanism; each of the service layer applications communicating with terminal resources to provide thereby a respective user interface; wherein the control mechanism selectively causing at least one of the service layer applications to enter an active state, the user interface associated with a service layer application being adapted in response to the service layer application entering the active state.

Abstract: Methods for slice-based encoding of program guides and user interfaces. The program guides include multiple video streams for picture-in-picture and other applications. A method for encoding the program guide includes encoding a first set of slices for each of a plurality of graphics pages; and encoding a second set of slices for each of a plurality of video streams. The user interfaces are multi-functional and may be used for electronic commerce and other applications. A method of generating the user interface includes encoding a set of slices for each of a plurality of objects, each object being characterized by an identity, at least one attribute, and at least one operation. In one embodiment of this method, the plurality of objects include an electronic commerce object, where the electronic commerce object is attributed with a first hyper text markup language (HTML) page.

Abstract: Methods for slice-based encoding of program guides and user interfaces are disclosed. The program guides include multiple video streams for picture-in-picture and other applications. A method for encoding the program guide includes encoding a first set of slices for each of a plurality of graphics pages; and encoding a second set of slices for each of a plurality of video streams. The user interfaces are multi-functional and may be used for electronic commerce and other applications. A method of generating the user interface includes encoding a set of slices for each of a plurality of objects, each object being characterized by an identity, at least one attribute, and at least one operation. In one embodiment of this method, the plurality of objects include an electronic commerce object, where the electronic commerce object is attributed with a first hyper text markup language (HTML) page.

Abstract: A method and apparatus for compressing a plurality of video sequences, is provided where each sequence has information that is common with other video sequences. The ensemble encodes the video sequences into an MPEG compliant transport stream using less predicted frame information than separately encoding each video sequence. One illustrative application involves efficiently encoding and transmitting a user interface such as a program guide, interactive program guide, electronic program guide, navigator and the like. The user interface is illustratively embodied in an interactive program guide (IPG).