Abstract: Various implementations provide one or more of improved programming channel change time and/or overall quality of television reception by using multiple transmission channels. In one particular implementation, a first layer of a picture is encoded using a first level of error protection. The encoded first layer has a first decoding delay. A second layer of the picture is encoded using a second level of error protection. The encoded second layer has a second decoding delay. The second level of error protection is lower than the first level of error protection, and the second decoding delay is longer than the first decoding delay. Other implementations provide a signal or signal structure carrying the encoded first and second layers. Yet further implementations decode the encoded first and second layers.

Abstract: Various implementations provide one or more of improved programming channel change time and/or overall quality of television reception by using multiple transmission channels. In one particular implementation, a first layer of a picture is encoded using a first level of error protection. The encoded first layer has a first decoding delay. A second layer of the picture is encoded using a second level of error protection. The encoded second layer has a second decoding delay. The second level of error protection is lower than the first level of error protection, and the second decoding delay is longer than the first decoding delay. Other implementations provide a signal or signal structure carrying the encoded first and second layers. Yet further implementations decode the encoded first and second layers.

Abstract: The disclosed methods and systems provide for the registry and authorization of media on a media player. The method involves maintaining a registry of registered media. Media to be played by the media player is compared to the maintained registry of registered media. If media is registered, authorization it then required to play the registered media.

Abstract: An apparatus and method for projecting an image on a surface is provided. More specifically, the method for highlighting information within an image displayed by a projection unit includes receiving a video signal; decoding the video signal; controlling a panel driver to drive a light engine within a predefined power range to display the video signal; and causing the panel driver to enter an overdrive mode driving the light engine at a power level above the preset power range for a period of a scan of the video signal at which information to be highlighted is displayed.

Abstract: An apparatus and method for projecting an image on a surface is provided. More specifically, the method for highlighting information within an image displayed by a projection unit includes receiving a video signal; decoding the video signal; controlling a panel driver to drive a light engine within a predefined power range to display the video signal; and causing the panel driver to enter an overdrive mode driving the light engine at a power level above the preset power range for a period of a scan of the video signal at which information to be highlighted is displayed.

Abstract: A program guide is displayed which lists the availability of information for a program listed in the guide, where such information is obtained from a source accessible through the Internet, where the guide uses first color to indicate the availability of such information and a second color when such information is not available.

Abstract: Various implementations provide one or more of improved programming channel change time and/or overall quality of television reception by using multiple transmission channels. In one particular implementation, a first layer of a picture is encoded using a first level of error protection. The encoded first layer has a first decoding delay. A second layer of the picture is encoded using a second level of error protection. The encoded second layer has a second decoding delay. The second level of error protection is lower than the first level of error protection, and the second decoding delay is longer than the first decoding delay. Other implementations provide a signal or signal structure carrying the encoded first and second layers. Yet further implementations decode the encoded first and second layers.

Abstract: Various implementations provide one or more of improved programming channel change time and/or overall quality of television reception by using multiple transmission channels. In one particular implementation, a first layer of a picture is encoded using a first level of error protection. The encoded first layer has a first decoding delay. A second layer of the picture is encoded using a second level of error protection. The encoded second layer has a second decoding delay. The second level of error protection is lower than the first level of error protection, and the second decoding delay is longer than the first decoding delay. Other implementations provide a signal or signal structure carrying the encoded first and second layers. Yet further implementations decode the encoded first and second layers.

Abstract: A graphical laser pointer is provided that comprises: three laser sources, the laser sources generating light beams having different colors; and a means for scanning the light beams in a raster pattern.

Abstract: A home multimedia net-work (10, 100) having display devices (121-12n) at multiple locations, can afford a user the ability to pause the play-back of previously recorded content at one location and later resume content playback at another location. To prevent the resumption of playback of content inappropriate for certain locations (e.g., a child's bedroom), the home multimedia network advantageously affords the user the ability to restrict selected locations from resuming playback by establishing a list of permissible locations able to receive paused previously recorded content.

Abstract: A multiple-tuner digital video storage device, providing live-pause television program viewing from digital television program data recorded on a storage device, reduces channel change delay when changing digital television channels. The digital video storage device processes and stores video data from a digital television channel to which a channel change expected (predicted) concurrent with storing video data from a digital television channel that is currently selected. The digital video storage device substantially simultaneously reads the stored video data for the currently selected digital television channel and the predicted digital television channel, and decodes the video data of the currently selected digital television channel for presentation to a Decoding display associated with the digital video storage device.

Abstract: The disclosed methods and systems provide for selectively including programs in listings of programs available though a digital video recorder (DVR). The method involves receiving a selection of a program available through the DVR. The received selected program is then tagged. The tagged program can then be selectively included in a listing of programs available through the DVR. This can involve omitting selected programs or only including selected programs from the display of the list of available programs.

Abstract: The disclosed methods and systems provide for the registry and authorization of media on a media player. The method involves maintaining a registry of registered media. Media to be played by the media player is compared to the maintained registry of registered media. If media is registered, authorization it then required to play the registered media.

Abstract: A multiple-tuner digital video storage device, providing live-pause television program viewing from digital television program data recorded on a storage device, reduces channel change delay when changing digital television channels. The digital video storage device processes and stores video data from a digital television channel to which a channel change is expected (predicted) concurrent with storing video data from a digital television channel that is currently selected. The digital video storage device substantially simultaneously reads the stored video data for the currently selected digital television channel and the predicted digital television channel, and decodes the video data of the currently selected digital television channel for presentation to a Decoding display associated with the digital video storage device.

Abstract: A video decoder system automatically acquires program guide information from local and remote peripheral devices to form a composite program guide. Program guide information is received from a first source and access data is retrieved from memory. The access data is used to initiate communication automatically between the video decoder and a second source external to the video decoder. Program guide information retrieved from the second source together with program guide information provided by the first source is incorporated into a composite program guide for display. The communication may be initiated upon different conditions and a peripheral device and associated communication protocol may be identified from various sources of configuration information.

Abstract: A program guide is displayed which lists the availability of information for a program listed in the guide, where such information is obtained from a source accessible through the Internet, where the guide uses first color to indicate the availability of such information and a second color when such information is not available.

Abstract: A video decoder system operates in different configurations to request and acquire information using one or more communication links and different communication protocols. A method for acquiring information requested by a User via a program guide selection involves retrieving access data from memory. The access data is retrieved in response to a User selection made from options shown on a displayed program guide. A data identifier is derived from program map data associating the data identifier and the User selection. Information is identified in an input signal in response to the access data using the identifier. The identified information is retrieved from the input signal to produce a retrieved information output and the retrieved information is formatted for display. The decoder may establish a Request communication link with a first device using the access data.

Abstract: A method of processing a packetized datastream that includes program information and ancillary information used to acquire desired program information packets. The method includes the steps of identifying a first data unit that includes channel information and identifying a plurality of second data units included with the first data unit. The plurality of second data units are of a fixed length, and thus, separated in the packetized datastream by a multiple of a fixed offset. The method further includes the step of acquiring desired second data units using the fixed offset and subsequently determining the available services associated with a program and acquiring the desired program packets from the datastream.

Abstract: Apparatus in a receiver, for processing transmitted entitlement control information, includes a packet transport processor for selecting signal packets having payloads containing a conditional access payload header and a remaining payload of entitlement data. Respective payload headers include groups of bytes which are coded in a manner to allow or disallow the respective receiver from processing the entitlement data. A conditional access filter preprogrammed with a subscriber specific conditional access codeword examines respective byte groupings of the conditional access header for a match with the subscriber specific conditional access codeword. Only if a match occurs is the processor permitted to process the entitlement data. The entitlement data is thereafter utilized to generate decryption keys for descrambling portions of the transmitted signal.

Abstract: In a television system in which at least program title information for programs which are to be transmitted in the future is transmitted in advance to form a channel guide listing, apparatus is provided for acquiring one of the title information and the current date, and generating display signal comprising data representing a text screen containing one of the title information and the current date for recording a user-viewable screen display on a video tape ahead of the television program signal. The title or date information acting as a leader to the following television program. In a second embodiment of the invention, in those instances where descriptive text accompanies the program listing, apparatus of the invention records the descriptive text relating to the title, the star, the director, or the context of the program.