Abstract: Techniques for distributing restricted media to consumers are disclosed. According to one aspect of the present invention, personalized settings (e.g., parameters or table) are managed in a primary client device associated with a user. A copy of the personalized settings is maintained in a server. When the primary box is replaced, a copy of the personalized settings is uploaded to a different client device that is configured to respond to the personalized settings. Data pertaining to titles in a personal vault is preloaded. When there is an order for a release that is restricted for distribution over an open network, data pertaining to such a release is also loaded. As a result, the subscriber sees the familiar settings on the different client device and would not miss any release while the primary box is being replaced or repaired.

Abstract: Methods and apparatus for recording programming content in a signal distribution system are disclosed. In one aspect of the invention, an interrupt is received, which may be associated with an incoming telephone call, email message, alarm or other type of message, and a corresponding interrupt indicator is presented on a user interface screen of a device such as television, laptop computer, mobile telephone, etc. Also presented on the user interface screen of the device is an activatable pause control that if activated initiates recording of a portion of the programming content that would otherwise be presented via the device absent activation of the pause control. Various trick play functions, such as pause, play, forward and rewind, may be provided utilizing the recorded portion of the programming content.

Abstract: Apparatus and methods for managing provision of content to devices in a content delivery network. In one exemplary embodiment, content with a high probability of viewership is sent to consumer premises equipment (CPE) during off-peak periods and stored prior to viewing. An application is utilized to manage decisions related to content provision. The computer program will identify content that is likely to be of interest users associated with respective CPE, and schedule provision of that content in advance of viewing. Then, the system will develop a plan for optimal scheduling of transmission of content to CPEs, often including the use of trickle downloads. The scheduling plan is based collected statistical and historical data on network resource demand to make scheduling decisions. The system allows for the shifting of bandwidth utilization from periods of high demand to those of low demand, and increased performance with regard to user experienced latency.

Abstract: A wireless receiver, in the form of a mobile telephone, includes a DAB receiver and a GSM/GPRS transceiver which enables bi-directional point-to-point data communications via a service provider. The DAB receiver is arranged to receive media data from an over-the-air broadcast channel, the media data primarily representing television and radio streams. In order that the streams can be decoded and decrypted by media playing software on the wireless receiver, a provisioning operation is employed to provide NSC header files and DRM licenses to users in response to them making content requests. The header files and licenses are sent over a separate data channel and in advance of the broadcast content.

Abstract: A system receives a first request for data associated with a data stream received over a first network from a remote source and then determines when the requested data will be available based on analyzing the data stream. The system communicates a second request for the requested data over a second network to the remote source when the requested data will not be available from the data stream within a threshold time and receives the requested data from the remote source over at least one from the list including the first network and the second network.

Abstract: Two different communication terminals share a broadcast content received through a mobile broadcast service. If a mobile broadcast-sharing mode for sharing a broadcast content with a specific communication terminal is set, a mobile broadcast terminal extracts broadcast video data and broadcast audio data from a mobile broadcast signal being received. The mobile broadcast terminal converts a codec of the broadcast video data and the broadcast audio data into a codec used in video communication, and delivers at least one of the converted broadcast video data and the converted broadcast audio data through video communication formed to the communication terminal.

Abstract: In one embodiment, a buffering server transfers a dynamic burst transfer of data encoded using an inter-coded compression technique. The dynamic burst transfer is timed so that an initial transfer rate is reduced to a remaining transfer rate at the same time or before a decoding endpoint joins a corresponding data stream. The decoding endpoint merges the video stream and the dynamic burst transfer to decode and quickly reconstruct a displayable video frame.

Abstract: A system and method for providing multiple audio streams for a video over a network such as the Internet. The system comprises a server that includes an encryption unit and a slicing unit, a plurality of boxes, and an ordering box. The server encodes multiple audio streams and a single video to be sliced into segments. The sliced segments of multiple audio streams and the single video are seeded to a number of the plurality of boxes. This may be repeated for other videos with multiple streams. When the ordering box makes a request for a single video with a single audio, then the number of boxes with segments of the requested video and multiple audio streams, filters and sends the requested video and requested single audio stream to the ordering box. Similarly, multiple closed caption streams can be handled and provided like the audio streams.

Abstract: A system and method for providing a personal broadcasting service using a mobile communication terminal with a multimedia broadcasting module are provided. A broadcasting service provider provides multimedia broadcasting content. A multimedia broadcasting terminal sends a channel selection signal to the broadcasting service provider, receives multimedia broadcasting content of a selected channel, and opens personal broadcasting. A normal terminal sends a multimedia broadcasting content request to the multimedia broadcasting terminal opening the personal broadcasting, and receives the multimedia broadcasting content from the multimedia broadcasting terminal opening the personal broadcasting.

Abstract: A communication apparatus includes a communication unit, an acquisition unit, and a control unit. The control unit controls the acquisition unit to acquire again information for generating video data to be transmitted to an external apparatus by the communication unit from an apparatus if the predetermined signal is detected, the predetermined signal indicates that a state of the apparatus is changed to a first state from a second state after the state of the apparatus is changed to the second state from the first state.

Abstract: A system, method, and web-based application platform enabling a television viewer to utilize an Internet device to request a Video-On-Demand (VOD) server to stream a selected video to the viewer's Set Top Box (STB). An Internet Protocol (IP) connection is established between the Internet device and an application executing at a web site, and an Internet device identifier is passed to the application. The application communicates with the VOD server to obtain a listing of available videos, and provides the listing to the Internet device. When the viewer selects a video, the application accesses an equipment-mapping table, which associates the Internet device identifier with an STB identifier. The application then sends the STB identifier and a request for the selected video to the VOD server, which delivers the video to the STB over a television delivery system.

Abstract: A system and method of generating an output signal includes a receiving system generating a plurality of signals having a first format, an encoder 162 encoding the plurality of signals into a plurality of transport streams and a multiplexer 210. The system also includes a local area network 130 routing the plurality of transport streams to the multiplexer 210 to form a combined signal, a modulator 214 modulating the combined signal to form a modulated signal and a system 202 forming the output signal from the modulated signal. In one aspect, the output signals may be satellite uplink signals.

Abstract: A method and system for providing desired media when a Push-To-Talk (PTT) over Cellular (PoC) User Equipment (UE) retrieves media information stored in a PoC box and requests a desired media transmission in a PoC system. In the PoC system, the PoC UE sends, to the PoC box, a request for media information stored in the PoC box to receive media stored in the PoC box. When receiving the media information request, the PoC box sends the stored media information to the PoC UE. The PoC UE selects desired media using the received media information and requests a PoC box media transmission. The PoC box sends the requested media to the PoC UE.

Abstract: Methods and apparatus for retrieving and providing voice mail messages from a server are described. In accordance with the invention voice mail messages may be retrieved via requests made via a set top box. Voice mail messages are retrieved in response to the request from a voice mail server which is also accessible via the telephone network. Retrieved voice mail is transcoded and included in a video on demand (VOD) file. Text, call ID information and/or other information as, e.g., an automatically generated transcript of the voice mail message, may be included in the VOD file. The VOD file is supplied to a VOD server which provides the file including the message to the set top box for display. A user can view the messages and switch from viewing one message to the next by using video play back commands.

Abstract: A method of providing one-way video transmission and corresponding interactive two-audio communication to remote recipients via a world wide computer network comprising the steps of creating a source digital video signal, broadcast transmitting the source digital video signal via an internet connection, transmitting a corresponding source digital audio signal a VoIP protocol, and transmitting a recipient audio signal to the source location via an Internet connection.

Abstract: Disclosed herein is a control apparatus for accepting a request for transmission of a content from a content transmission apparatus to the control apparatus and for passing on the request to the content transmission apparatus by way of a communication network allowing a transmission quality to be reserved and for issuing a request to a content accounting server to carry out a content accounting process according to the substance and content quality wherein the control apparatus: receives a specified substance and quality of the content and transmits a request to the content transmission apparatus to transmit the content; determines a transmission quality on the basis of the specified content quality and makes a reservation for the determined transmission quality of a transmission line on the basis of the transmission quality; and issues a request to a transmission-quality accounting server to carry out an accounting process according to the transmission quality.

Abstract: A method and apparatus is provided for the delivery of digital television and interactive broadband service in a manner that maximizes the usage of the digital broadcast spectrum. A digital television signal is transmitted to a given broadcast area in a relatively small part (for example, a 1 MHz band) of one or more licensed portions of the digital broadcast spectrum. Interactive broadband service is delivered within at least a portion of the same broadcast area covered by the broadcast digital television signal, in the remainder (for example, a 5 MHz band) of an unused part of the same licensed portion of the digital broadcast spectrum as is occupied by the digital television signal, or within an unlicensed (unused) portion of the digital broadcast spectrum. The broadcasting of the digital television and delivery the interactive broadband service occur simultaneously. In one embodiment, digital television and broadband service are delivered by the same equipment within the same bandwidth.

Abstract: According to embodiments of the present invention, there is provided an apparatus and system for controlling signal filtering. According to some non-limiting embodiments, a selective filtering apparatus is provided. The selective filtering apparatus comprises an input interface connectable to a source of a composite signal within a first frequency range and a filtering device, coupled to the input interface. The filtering device comprises a filter and an output interface, the filter being operable to filter the composite signal and output an output signal within a second frequency range, the second frequency range being a subset of the first frequency range; the output interface being connectable to at least a portion of an in-premises telephone wiring. The selective filtering apparatus further comprises a triggering module being operable to cause the output interface to selectively output one of the output signal and the composite signal responsive to detection of a triggering event.

Abstract: A system for redistributing a multiple input audio/video and data signals having a redistributing device equipped to receive signals in a multiple formats and redistribute a selected signal to a user's premises over conductors, preferably existing twisted-pair telephone wire. The redistributing device is in interactive communication with a communications interface located in the user's premises which receives user-input control signals and contains switching circuitry which routes the selected signal to the user's premises where it is received by the receiving unit such as a television receiver. A single redistributing device services an entire multi-user network from a common distribution point, and services multiple users independently. The system of the invention does not interfere with normal use of the telephone network, so users can interactively access services provided by the system and use the telephone at the same time.

Abstract: A transmitting terminal can transmit a content held by itself to a specific receiving terminal having no email software as if using a mailer. The transmitting terminal (10) and the receiving terminal (20) are connected to a delivery server (30) via a network (4). The delivery server (30) comprises: a database (36) for registering the device ID that specifies the receiving terminal (20); a content storage (39) for temporarily storing a content transmitted from the transmitting terminal (10); and table (33, 37) for managing contents separately on a per device ID basis of the receiving terminal. The delivery server (30), when receiving a request from the receiving terminal (20), refers to the tables (33, 27) and transmits to the receiving terminal (20) a content, the transmission destination of which corresponds to the device ID of the receiving terminal (20).

Abstract: An information distribution and processing system contains a remote site, a sender and a receiving apparatus. The remote site contains a first set of digital data. The sender delivers a second set of digital data to the receiving device. In one embodiment of the present invention, the receiving device contain a timing device for automatically receiving the second set of digital data at predetermined times. The second set of digital data contains a first set of displayable data, a second set of displayable data, at least one non-displayable symbol, and at least one linking reference associated with the second set of displayable data. If desired, a user can select the second set of displayable data. The associated linking reference is sent to the remote site. The associated linking reference is used by the remote site to search for the additional information, and returns the requested information to the user.

Abstract: One embodiment is a handheld portable cellular device that receives and plays feature length movies. In one exemplary embodiment, a multifunctional handheld portable cellular device (HPCD) has a body, a display and a processor. The processor plays a feature length movie on the display. The HPCD orders, via a wireless connection to a network, the feature length movie before a public release date of the feature length movie, and plays the feature length movie on the display before the public release date.

Abstract: A media device comprising: a memory storing a communication client application; a processor, coupled to the memory and operable to execute the communication client application, wherein the client application is programmed so as when executed to allow a user to establish a call with one or more other users via a packet-based communication network; and a remote control unit comprising wireless communication means arranged to transmit data to the processor, a control means coupled to the wireless communication means and configured to control the wireless communication means, user input means coupled to the control means and arranged to receive input commands from the user and provide the input commands to the control means, and a microphone coupled to the control means and arranged to receive audio signals from a user, wherein, responsive to the control means receiving a command to establish a call from the user input means, the control means is arranged to activate the wireless communication means from a deacti

Abstract: A method for transmitting/receiving a broadcasting signal and a broadcasting signal receiver are disclosed. An identifier of a burst period is obtained from program table information of the broadcasting signal including mobile data and only the burst period in which a broadcasting program desired by a user is transmitted is received. Accordingly, when the broadcasting signal is received, only a desired burst period is received such that power consumption of the broadcasting signal receiver can be reduced.

Abstract: Apparatus for establishing a packet-based connection between a video display equipment (such as a set-top box) having an analog modem and a remote computer. The translation apparatus receives a connection initiation request from the video display apparatus and responsive to the connection initiation request establishes a modem connection with the video display apparatus. The translation apparatus further receives communication data from the video display apparatus via the modem connection and transmits the communication data to the remote computing apparatus via a packet-based network. The translation apparatus can also receive communication data from the remote computer and relay the same to the video display apparatus. The connection can be established upon powering up of the video display apparatus, upon loading of an Interactive TV application or upon other pre-determined event. The connection can be maintained “always-on” or substantially “always-on”.

Abstract: A system receives a first request for data associated with a data stream received over a first network from a remote source and then determines when the requested data will be available based on analyzing the data stream. The system communicates a second request for the requested data over a second network to the remote source when the requested data will not be available from the data stream within a threshold time and receives the requested data from the remote source over at least one from the list including the first network and the second network.

Abstract: A method and apparatus for aggregating the data for a plurality of individualized programs into a single channel, and allocating the channel bandwidth as-needed for provision of short video programs on an “on demand” basis, so that the total bandwidth required to provide the individualized channels and associated video clips is substantially reduced. Also provided is a real-time, single-user-targeted individualized advertising associated with the viewer selection that personalizes the user's iTV experience. The advertisements are targeted in real-time based on an immediate interest revealed by the user in a search request for content. Short duration videos are provided so as not to over-tax the individualized “on demand” channel's limited bandwidth.

Abstract: Described herein are techniques for allowing a customer support agent to remotely analyze a television receiver. A television receiver is communicatively coupled to a customer support center through a communication network. A customer support agent remotely accesses the television receiver and the television receiver transmits video content to the customer support center through the communication network. The video output is outputted to the customer support agent at the customer support center for analysis of the television receiver.

Abstract: A method and apparatus for playing a mobile video program buffers program content received in real time when there is a considerable movement state change. After the movement state becomes stable, playing will be resumed. While playing is resumed, the buffered contents can be firstly played, including the playing manners such as skipping, fast forward, etc, and then a program content received in real time will be played after all the buffered contents have been processed. According to the mobile video playing method, both the user's requirement for the continuity of a program content and the user's viewing effect will not be influenced by a fierce change of movement state of the mobile video apparatus.

Abstract: What is disclosed is a method of operating a video system. The method includes determining a projected geographic path of a mobile communication device and determining a transfer schedule for reference frames of a video based on the projected geographic path. The method also includes transferring the reference frames of the video based on the transfer schedule for delivery to the mobile communication device over a wireless communication system and transferring update frames of the video for delivery to the mobile communication device over the wireless communication system without regard to the projected geographic path.

Abstract: A system for redistributing a multiple input audio/video and data signals having a redistributing device equipped to receive signals in a multiple formats and redistribute a selected signal to a user's premises over conductors, preferably existing twisted-pair telephone wire. The redistributing device is in interactive communication with a communications interface located in the user's premises which receives user-input control signals and contains switching circuitry which routes the selected signal to the user's premises where it is received by the receiving unit such as a television receiver. A single redistributing device services an entire multi-user network from a common distribution point, and services multiple users independently. The system of the invention does not interfere with normal use of the telephone network, so users can interactively access services provided by the system and use the telephone at the same time.

Abstract: It is an object to provide a digital TV broadcast system and a cellular phone in which content of a data broadcast can be checked with a small display area, and work for checking desired content in detail is easy. Extracted character strings extracted from content data are provided in a picto display area 21 in a horizontally long display state as a marquee display. In the case where a display screen is switched to a vertically long display state during the display of the extracted character strings, a cursor 26 is placed on a character string corresponding to an extracted character string displayed in the horizontally long display state upon the switching, among character strings displayed in a data broadcast display area 25.

Abstract: A system for redistributing a multiple input audio/video and data signals having a redistributing device equipped to receive signals in a multiple formats and redistribute a selected signal to a user's premises over conductors, preferably existing twisted-pair telephone wire. The redistributing device is in interactive communication with a communications interface located in the user's premises which receives user-input control signals and contains switching circuitry which routes the selected signal to the user's premises where it is received by the receiving unit such as a television receiver. A single redistributing device services an entire multi-user network from a common distribution point, and services multiple users independently. The system of the invention does not interfere with normal use of the telephone network, so users can interactively access services provided by the system and use the telephone at the same time.

Abstract: The playback of video content delivered over a wireless network can be controlled by the provision of various control functions that can be actuated by the user. The controlled playback can be implemented on a system level, in which the delivery of the video content is controlled in response to receiving control actuation signals from a receiver device or can be implemented at the receiver device level by storing the video content and controlling the rendering of the content based on user actuations. In either implementation, the playback control can include pausing, stopping, fast-forwarding, rewinding, reversing, fast-reversing and skipping of the video content.

Abstract: An apparatus for providing an interactive service during a broadcast service includes a transmitting element and a processing element. The transmitting element is capable of communicating broadcast content of the broadcast service to a plurality of receiving terminals. The processing element is configured to at least partially control the transmitting element. The processing element is configured to communicate with a network device in order to request a program specific group for communication of the interactive service to a receiving terminal that is a member of the program specific group. The interactive service is communicated to the receiving terminal that is a member of the program specific group with reception of the broadcast service. The content associated with the interactive service originates from the receiving terminals.

Abstract: A method, system, and computer program product for providing multi-viewpoint media content services is provided. The method includes receiving a feed of content from at least one communications device that is observing an event from a specified viewpoint and/or relaying the feed of content received from another communications device. The method also includes classifying the content according to a viewpoint identifier and a content identifier. The content identifier specifies a defined portion of the event. The method further includes providing access to user-selectable viewpoints of the content via a corresponding viewpoint identifier and content identifier. Content of selected viewpoints is modifiable for creating customized content.

Abstract: A method for transmitting/receiving a broadcasting signal and a broadcasting signal receiver are disclosed. An identifier of a burst period is obtained from program table information of the broadcasting signal including mobile data and only the burst period in which a broadcasting program desired by a user is transmitted is received. Accordingly, when the broadcasting signal is received, only a desired burst period is received such that power consumption of the broadcasting signal receiver can be reduced.

Abstract: While a user uses one service in a digital multimedia broadcasting receiving terminal, there is implemented a function for suspending the service currently being used and enabling a different service to be used when the different service is provided. A function for enabling a call service to be used during a broadcast service is implemented. A call screen is displayed in a state in which a broadcast service connection is maintained, such that the user can use a new call service without stopping the broadcast service currently being used. In this concurrent service, switching between the call screen and a broadcast screen is possible. This display method can prevent images of the respective services from overlapping with each other and can provide one service without stopping another service.

Abstract: A method and system for controlling the digital consumption of media and information such as the recording of television programs, real world, or electronic merchandise from a plurality of a customer's Unique Identifiers (such as telephone numbers). The television programs are identified by specific identifiers, such as alpha-numeric indicia. Customers can register several Unique Identifier(s) with the service provider and can secure recording of specific programs from any of said registered Unique Identifier(s). Customers can also register Unique Identifier(s) such as the set top boxes at one or more locations and at the same time direct where the content will immediately or later be delivered, so that the recorded TV program can be accessed and viewed.

Abstract: Provided is an apparatus and method for displaying images, which enables a selected image to be displayed in full screen mode or slide show mode on the TV receiver, while images stored in the recording medium are being displayed on the remote controller. The apparatus and method can also display the thumbnail in an image display area by putting time periods on the vertical axis and photography locations on the horizontal axis.

Abstract: Secure transactions are achieved over a public network by using a private network to handle the sensitive information of the transaction. When a client requests a product from a vendor server over a public network, the vendor server notifies a facilitation server on the public network. This results in the client receiving a set of computer readable instructions from the facilitation server. The set of instructions provide access instructions to a transaction server system on the private network so that sensitive transaction information is sent to the transaction server system on the private network rather than over the public Internet. Where the sensitive information is credit card information, the transaction server system may obtain authorization for the transaction from a financial institution and then notify the vendor accordingly.

Abstract: Live television broadcast and other information and entertainment programs, e.g., videos-on-demand (VOD), are provided to a user through a communications network, e.g., a cable network. A processing unit is employed at an headend of the communications network to respond to user requests for PVR-like functions, e.g., pausing, rewinding and fast-forwarding, to be performed on the program content being viewed. The processing unit in accordance with the invention causes a delivery of an appropriate version of the program content to meet such user requests.

Abstract: A method for downloading high-capacity data of multimedia content data (e.g., MP3, music video, and movie, etc.) in a mobile communication terminal, and a system for implementing the same are disclosed. The method for downloading data in a mobile communication terminal includes the steps of: selecting a desired data over a mobile communication network, and downloading the selected data over a broadcast network. Therefore, a user can download multimedia content data over a data channel of a DMB network, instead of the Internet of a mobile communication network, resulting in reduction of internet charges accumulated when downloading the high-capacity data.

Abstract: A method for video sharing, which realizes video sharing between an originating UE and a terminating UE when the terminating UE is not IMS core network registered. The method includes the following steps: an originating UE sends a video sharing request containing a URI of callee to an application server; the application server determines that the terminating UE of the callee is not IMS core network registered and notifies the terminating UE to register; the terminating UE activates a GPRS connection and registers with the IMS core network; the originating UE and the registered terminating UE set up a sharing session via the application server; the originating UE and the terminating UE share video information. A system and apparatus for practicing this method is also disclosed.

Abstract: A media content playlist generation and access system for a video entertainment network is herein disclosed whereby a plurality of media content emanating from various disparate networks may be conglomerated into a customized list. The list may contain stored media content, which are customarily stored in the head end portion of a CATV network, media content accessible via the Internet, or yet to be aired media content. The system also provides for manipulation of the playlist from various consumer electronic display devices that are interconnected to the Internet, or the PSTN, thereby allowing further customization of the playlist at the user's convenience. Additionally, a multiple user account system is provided wherein multiple user accounts may be configured in order to allow a corresponding multiple individualized playlists, which are each customized to suit each user's tastes.

Abstract: Disclosed is a television receiver including a presetting section to carry out presetting by assigning a frequency in a receiving band to each of a plurality of receiving channel positions as a preset channel including: a memory section to store telephone number information of a call center which responds to an inquiry of a customer; a display section to display the telephone number information of the call center; a judging section to judge whether or not at least one of the receiving channel positions has been preset by the presetting section; and a display controlling section to read the telephone number information of the call center stored in the memory section and to display the read telephone number information in the display section, when the judging section has judged that no presetting has been carried out in any one of the receiving channel positions by the presetting section.

Abstract: Methods and systems enable viewers of mobile TV to interact and communicate with one another in real time regarding programs being viewed. Viewers may search other viewers on the mobile TV system. Viewers may invite other viewers to join them in viewing a program or to chat. Viewers may write programs with rating since the broadcast network provider for tallying and broadcast to others. Viewers may set reminders for programs and share those reminders with other viewers. Programs may be hosted by individuals who may control the broadcast stream and communicate with viewers of the program. Viewers may also create ad hoc channels in which they can share their favorite programs with other viewers.

Abstract: A system and methods are described for transcoding media content in the background on a source computer device prior to such time as a target media playback device is connected to the source computer for synchronization of the media content. The system and methods anticipate which media content to background-transcode based on user input rules and media status data that are maintained in a transcode database. Pre-transcoding media content provides advantages that include a significant reduction in the time needed to synchronize media content between a source computer and a target media playback device, and an efficient use of CPU power for transcoding media content at times when the CPU might otherwise stand idle.

Abstract: An information distribution and processing system contains a remote site, a sender and a receiving apparatus. The remote site contains a first set of digital data. The sender delivers a second set of digital data to the receiving device. In one embodiment of the present invention, the receiving device contain a timing device for automatically receiving the second set of digital data at predetermined times. The second set of digital data contains a first set of displayable data, a second set of displayable data, at least one non-displayable symbol, and at least one linking reference associated with the second set of displayable data. If desired, a user can select the second set of displayable data. The associated linking reference is sent to the remote site. The associated linking reference is used by the remote site to search for the additional information, and returns the requested information to the user.

Abstract: A method for switching mobile television channels of a mobile computing device includes the following steps: First, an original channel is played on a screen of the mobile computing device. A first channel number of a first selected channel is received at a first time point. Then, a second channel number of a second selected channel is received at a second time point, wherein a time interval between the first and second time points is less than a predetermined interval for action. A period of time from the second time point to an action time point is counted, wherein the period of time is equal to the predetermined time interval for action. Next, data bursts of the second selected channel are received and buffered from the action time point to a next time point. At last, the second selected channel is played on the screen from the next time point.