57 results about "Channel surfing" patented technology

A video retrieval system is presented that allows a user to quickly and easily select and receive stories of interest from a video stream. The video retrieval system classifies stories and delivers samples of selected stories that match each user's current preference. The user's preferences may include particular broadcast networks, persons, story topics, keywords, and the like. Key frames of each selected story are sequentially displayed; when the user views a frame of interest, the user selects the story that is associated with the key frame for more detailed viewing. This invention is particularly well suited for targeted news retrieval. In a preferred embodiment, news stories are stored, and the selection of a news story for detailed viewing based on the associated key frames effects a playback of the selected news story. The principles of this invention also allows a user to effect a directed search of other types of broadcasts as well. For example, the user may initiate an automated scan that presents samples of broadcasts that conform to the user's current preferences, akin to directed channel-surfing.

A wireless communications device provides users with opportunities to access interactive media guidance or other applications and to control user equipment and interactive media guidance applications. In an exemplary embodiment, users can access a surfing guide application which allows browsing of screenshots of programs playing on broadcast channels on the wireless communications device.

A system and method are provided for providing both static and dynamic IP multicasting. The concept of a multicast Static-Range is introduced which allows the coexistence of static and dynamic IP multicast. The multicast Static-Range is a set of Class D IP addresses which is reserved for static multicasting, and is configured at all routers. When a router receives a PIM message or an IGMP message, the router determines whether the group specified in the message is within the multicast Static-Range. If the group pertains to a static multicasting group, the router does not propagate the message to upstream routers using PIM-SM or PIM-SSM protocols, and only connects or disconnects interfaces internal to the router. If the multicast group address in the message is not within the multicast Static-Range, the router recognizes that the message pertains to a dynamic multicasting group and implements PIM or IGMP protocols as usual. If the invention is used for broadcasting TV, the low end of TB channels or commonly used channels can be created as static IP multicast. This way, a user can access or leave such channels without an entire shortest path tree being created or torn down, improving access time and channel surfing for a user. Also, pay-per-view, digital or less frequently used channels can be created using dynamic IP multicast with traditional PIM-SSM protocol, in order to make efficient use of router resources.

Digital television having improved channel surfing ability. At least the “I” and “P” frames of an MPEG transport stream are buffered for as many program streams as memory permits. A pointer tracks where the last “I” frame of each program stream is in memory. Since the last “I” frame and subsequent “P” frames of a program stream are available, channel changes within the current MPEG transport stream are speed up by allowing any “P” frame to start a newly selected program stream. Extra memory enables buffering of all of the “I”, “P” and “B” frames of a program stream. Extra tuners can enable selection of multiple MPEG transport streams. Intelligent choices of MPEG transport streams can speed surfing across transport streams.

A wireless communication system is enhanced to allow for low-latency channel surfing and to enable a user to quickly see the content carried over a selected channel while searching channels for desired content. The techniques for reducing the channel change latency may be implemented in a transmitter, receiver, or in a combination of transmitter and receiver. The wireless communication system is optionally a DVB-H communication system. The transmitter may generate and transmit one or more auxiliary channels, where each auxiliary channel contains reduced resolution content corresponding to one or more channels. The receiver may process the one or more auxiliary channels to present the reduced resolution content while processing the full resolution channel for display. The receiver caches portions of content from one or more non-selected channels and presents the cached content when the channel is selected while concurrently searching and processing the full resolution channel content.

Provided is a broadcast receiving apparatus which makes it possible to select a desired television program quickly by channel-surfing. The broadcast receiving apparatus (10), which outputs information of the received broadcast content as television program information of a channel for which the broadcast content is received, includes an operation detecting unit (111) detecting a channel that selects operation, an operation speed calculating unit (211) that calculates a channel selecting operation speed from the detected channel selecting operation, a list item count determining unit (212) that determines, according to the calculated channel selecting operation speed, the number of channels for which the television program information is displayed, a channel determining unit (213) that determines channels to be listed so that the television program information is displayed for the determined number of channels, and a displaying unit (216) that outputs the television program information of the determined channels to be listed.

Disclosed is an IP-based broadcast service system capable of reducing the channel zapping or changing time and the waste of bandwidths during frequent channel changes such as channel surfing. A broadcast server for providing broadcast services generates both high-quality broadcast data and low-quality broadcast data of each TV channel. The broadcast server provides the low-quality broadcast data during a simple channel surfing. When a viewer selects a channel to view, the broadcast server then provides the high-quality broadcast data of the selected channel.

A method and system are provided for allowing channel surfing during the presentation of a commercial broadcast by returning the viewer to the desired program channel after the commercial broadcast has concluded. When a commercial broadcast is received that interrupts the presentation of a viewer's desired programming, channel surfing is facilitated based on increased audio volume levels broadcast with the commercial broadcast. During channel surfing, the present audio level of the primary channel presenting the undesired commercial broadcast is monitored. If the audio volume level drops below the level of the commercial broadcast or returns to the level set by the viewer for the desired program prior to receipt of the commercial broadcast, the desired program channel may be reselected to return the viewer to her desired program channel. The viewer may be notified that the commercial broadcast has ended prior to reselection of the desired program channel. Notification may be in the form of a notification message displayed to the viewer.

Methods and apparatus for improving channel browsing experience for users by control scroll rates in guide listings are described. A user can scroll through channel listings arranged according to program genre at a high maximum scroll rate. The scroll rate is automatically reduced, and in some embodiments scrolling is temporarily paused, when listings corresponding to a new genre are displayed. In this way a high maximum scroll rate can be supported but without the risk of a user unintentionally scrolling through an entire genre of programs of interest even if the genre only includes one or a few programs in total. Thus, in various embodiments a scrolling rate is decreased when a change in the genre of programs from a first genre of programs being displayed to a second genre of programs being displayed occurs as part of said scrolling.

A method for reviewing broadcast channels. The method including: capturing at least one broadcast channel at a first site at a reduced quality from its broadcast quality; receiving the at least one reduced quality broadcast channel at a second site, the second site being remote from the first site; and reviewing the at least one reduced quality broadcast channel at the second site. Preferably, the reduced quality broadcast channel is captured on a video server corresponding to an Internet address and is downloaded from the Internet via a wireless transmission to a cellular phone, PDA, or the like.

A video playback device, provided in a P2P-based network, comprises a channel pre-cached buffer, for storing a plurality of video blocks corresponding to a number of pre-cached channels; a display interface, for receiving a request for channel browsing from a viewer and executing playback of the video blocks pertaining to a selected channel indicated on the request; and an agent module, for receiving the request for channel browsing from the display interface, obtaining a seed/peer list pertaining to the selected channel indicated on the request, and downloading the video blocks from seed and/or peer nodes based on the seed/peer list; characterized in that the agent module applies an automatic refreshing mechanism for updating the corresponding video blocks to each pre-cached channel by supplying the most updated video blocks in the channel pre-cached buffer.

Methods, systems, and apparatus, including computer program products, for changing digital broadcast channels. In one implementation, upon receiving a request for switching to a new channel in a digital broadcast receiving device, the device switches from a power saving mode, in which the device processes time-slices only for the currently selected broadcast channel, to a channel changing mode, in which broadcast data is buffered for more than one broadcast channels in anticipation of channel surfing. In another implementation, the user's perception of the channel change delay is mitigated by displaying channel information about the newly selected channel.

When a viewer initiates channel surfing, a surfing guide is presented to the viewer. The surfing guide provides multiple channel regions, where each channel region is associated with a different channel that is available to the viewer. Each channel region will include a channel window in which an image or video content from the corresponding channel is displayed. When the surfing guide is being displayed to the viewer, the channel window in at least one of the channel regions will include video content, which is derived from a low bandwidth video stream for the associated channel. Each channel region may also have a channel information area in which textual information about the corresponding channel is provided to the viewer.

The invention relates to a method for browsing and playing a child window channel. The method comprises the following steps: analyzing history duration data played by each channel, and sequencing each channel according to the dimension of the playing duration; and playing each channel in a child window according to a sequencing result. The invention also relates to a browsing and playing device for the child window channel. The method and the device sufficiently consider reception habit of a user, can quickly position a program channel which is favored and usually watched by the user, can quickly position a channel which is commonly favored by a specific group at the same time, and can prompt information by a small video window, thereby providing great convenience for user watching and service operation of an operator.

Methods and apparatus for improving channel browsing experience for users by presenting an automatically appearing and automatically scrolling program guide are described. The methods and apparatus are well suited for use with remote control devices with limited numbers of input buttons, e.g., under five buttons, but can be used with remote controls with more buttons. The program guide can be used to allow access to a grid guide to users of hospital remotes or other remotes with limited input keys, e.g., an up down arrow and/or a power button. The method in some embodiments uses time spent on a channel in combination with user selection of an input key to determine an action to be taken, e.g., enter or display the program grid guide and/or select a channel and/or corresponding program being displayed in the grid guide.

The invention discloses a method, a device and a system for performing channel surfing, and belongs to the technical field of electronics. The method includes that a network television receives a channel surfing instruction, and starts a surfing television wall; in the process of starting the surfing television wall, the network television sends an image acquisition request to a background server, and the background server acquires image frames of currently played live video streaming of at least one channel and sends the image frames to the network television; the network television receives the image frames, of the currently played live video streaming of the channels, sent by the background sever; and the network television displays the received image frames in display partitions in the surfing television wall while displaying the surfing television wall. By adoption of the method, the device and the system, channel selecting efficiency can be improved.

A set-top box or other receiving device may detect such channels that the EPG cursor visits frequently, visits for relatively long periods of time or that are frequently displayed on the screen in the electronic program guide (EPG), or otherwise frequently visited or viewed. The system determines that such channels are those that the user is likely to return to when browsing the EPG in the future and then adapts the EPG to present such channels on top of the EPG together with each other separately from the other full list of channels presented in the. This may be performed each time the EPG is opened. A customized EPG having the particular group of channels presented according a specific identified user's previous channel browsing activity may also be generated.

Two-tuner media device systems and methods are operable to pre-tune a second tuner in anticipation of a channel surfing activity. An exemplary embodiment receives a first content stream associated with a currently presented channel at a first tuner, determines an anticipated channel based upon the currently presented channel and a historical channel surfing pattern, receives a second content stream associated with the anticipated channel at a second tuner, detects an initiation of a channel surfing activity, and presents at least a video portion of the second content stream associated with the anticipated channel in response to detecting the initiation of the channel surfing activity.

The present invention is a system for organizing and providing intuitive access to the widest range of digital media documents. The system allows users to both register and access listings of media documents by setting the channels on multiple graphic dials. Each dial provides a full spectrum of possible media document attributes. Separate dials offer quick selection of the following media document attributes: media type, genre of the media document, tone expressed in the media document, subject addressed in the media document, activity addressed in the media document, and theme addressed in the media document. Users can activate and set as many dials as they like to specify the sort of works they wish to register into the database or access through the database. Users of the system can register a new media document in the database by first listing the location of the document and then by setting the dials to the channels that best describe the document. When accessing media documents, changing the channel on any one of the dials brings up a new list of matching works available through the database. Users then click on a specific listing to access the document. When registering new media documents or when accessing media documents already registered in the database, users can select multiple channels on any dial to describe the documents. Users can also select categories from subsets that are offered on many of the channels.