Abstract:
A method for providing a broadcast provider identifier, and a method and a receiver for identifying a broadcast provider are provided to transmit the broadcast provider information to the receiver rapidly and exactly, so that the broadcast provider information is used in proper to determine the broadcast reception maintaining as occasion demands. A transmission parameter signal is prepared(S110) so that the transmission parameter for transmitting a broadcasting signal is prepared. In a broadcasting provider identification information recording process(S120), the broadcasting provider identification information is recorded at the transmission parameter signal. In a transmission parameter signal transmission process(S130), the transmission parameter signal in which the broadcasting provider identification information is recorded is transmitted. In the broadcasting provider identification information recording process, the broadcasting provider identification information is recorded in the cell identification information of the transmission parameter signal.
Abstract:
A method and a system for transmitting and receiving a notification message in a portable broadcasting system are provided to transmit the notification message to a terminal which is in idle state or is connecting to an interaction system in the portable broadcasting system which provides a broadcasting service. An NDAF(Notification Distribution/Adaptation Function)(103b) transmits control information including channel information necessary for receiving notification message to a mobile terminal(108). The NDAF(103b) generates the notification message on the basis of the channel information and transmits the generated notification message to the mobile terminal(108). The mobile terminal(108) receives the notification message by using the control information.
Abstract:
An integrated digital multimedia broadcasting receiver is provided to suggest an integrated multimedia decoder capable of supporting all of DVB-H(Digital Video Broadcasting-Handheld) reception and TDMB(Terrestrial Digital Multimedia Broadcasting) reception. An OFDM(Orthogonal Frequency Division Multiplexing) modulator(101) modulates DVB-H data or TDMB data. A symbol demapper(102) selectively demaps one of the DVB-H data and the TDMB data. A symbol deinterleaver(105) deinterleaves the demapped DVB-H data. An integrated deinterleaver(106) selectively deinterleaves the DVB-H data and the TDMB data. An integrated viterbi decoder(107) performs viterbi decoding of the data deinterleaved by the integrated deinterleaver. A demultiplexer(104) outputs a signal to the integrated viterbi decoder if a signal from the symbol demapper is the TDMB data and a symbol corresponding to an FIC(Fast Information Channel), and outputs the signal to the integrated deinterleaver if the signal from the symbol demapper is the DVB-H data. An external deinterleaver(108) selectively deinterleaves the data decoded by the decoder.
Abstract:
A method for constructing an ESG(Electronic Service Guide) is provided to remove the ambiguity generated in constructing an ESG data model, thereby efficiently constructing the ESG. Metadata related to respective services are collected, and data of the services are analyzed(202). It is determined whether each of the programs is constituted of one program(206). If the service is constituted of plural programs, one service fragment has plural contents fragments, each of the contents fragments has at least one component, and the component has at least one acquisition fragment(208). If the service is constituted of one program and a data model layer structure of a transmitter is the same as for the plural programs, one service fragment has one contents fragment, the contents fragment has at least one component, and the component has at least one acquisition fragment(210). ESG data are encoded by characteristics of respective fragments(214). The encoded ESG data are collected(216), and the collected ESG data are transmitted in an ESG stream(218).
Abstract:
A frame boundary detection method and apparatus for Reed-Solomon decoding in a DVB-H(Digital Video Broadcasting-Handheld) receiver and a method for decoding an MPE-FEC frame using the same are provided to recover an IP datagram and detect a frame boundary value to provide a user with broadcast data even when a boundary value of an MPE-FEC frame is not received so that an abnormal operation can be prevented. An MPE-FEC(Multiprotocol Encapsulation-Forward Error Correction) frame decoding method comprises the following steps. A packet identifier included in a received transport stream packet is filtered and broadcast service information is detected. A transport stream packet including section data is detected(1200). A section data type is checked by detecting a table identifier from header information of the received section data. A frame buffering process is performed. A counting process is performed during a time preset in maximum burst duration information(1201). It is detected whether the last MPE-FEC section has been received on the basis of frame boundary information(1202). An error-corrected IP(Internet Protocol) datagram is output using buffered Reed-Solomon data(1210).
Abstract:
본 발명은 DVB-H 방송 수신기와 같은 이동형 방송 수신기에서 동기 시간 단축을 위한 장치 및 그 방법에 관한 것이다. 특히 본 발명은 이전 버스트 구간에서 추정된 대략적 주파수 오프셋을 저장한 후, 현재 버스트 구간에서 초기 2심볼을 이용하여 추정된 대략적 주파수 오프셋이 이전 버스트 구간에서 추정된 대략적 주파수 오프셋과 같은지를 비교한다. 그리고 두 대략적 주파수 오프셋이 같다면, 이전 버스트 구간의 대략적 주파수 오프셋을 현재 버스트 구간의 대략적 주파수 오프셋으로 출력함으로써, 대략적 주파수 오프셋을 추정하여 보상하는 동기 시간을 단축할 수 있다. 그리고 이동형 방송 수신기에서는 동기 시간이 단축되면 평균 소비 전력을 더욱 줄임과 동시에 오프 타임을 줄일 수 있으므로 채널 변경에 따른 반응 시간을 줄일 수 있다. 대략적 주파수 오프셋, 버스트 구간
Abstract:
A mobile broadcasting receiver and a method of searching a channel of the mobile broadcasting receiver are provided to write serviceable channels in a channel list, there removing inconvenience that a channel is searched again whenever handover occurs. A tuning unit(11) tunes a frequency band of a service transmitting channel and a frequency band of an adjacent transmitting channel. A channel is scanned through the tuning. A comparator(12) compares receive sensitivity of the scanned channel with a threshold value. A memory(13) stores information about a channel which is greater than a threshold value. An output unit(14) writes a channel list and displays the channel list on a screen.
Abstract:
DVB-H 인코딩 시스템이 제공된다. 본 발명은 다수의 서비스 채널을 통해 아날로그 비디오 신호와 아날로그 오디오 신호를 수신하여 IP 데이터 캐스트 형식으로 인코딩하는 인코딩 장치, 상기 인코딩 장치로부터 인코딩된 신호를 수신하여 인캡슐레이션(Encapsulation)하고, 다중화하여 출력하는 인캡슐레이터 장치를 포함한다. 본 발명에 의하면 DVB-H 인코딩 시스템에서 다수의 서비스 채널을 통해 입력되는 아날로그 신호를 인코딩함에 있어서, 데이터의 손실없이 안정적으로 인코딩을 수행할 수 있는 효과가 있다. 인코딩, 오디오, IP, 채널 DVB, 데이터 캐스트, 데이터, 아날로그, 인캡슐레이션.
Abstract:
A mobile reception terminal which provides personalization EPG in order to provide a user with EPG information of a plurality broadcast to the bidirectional mobile broadcasting environment through one EPG application is provided to convert EPG information received from an EPG service providing company into one standard EPG data format. An EPG(Electronic Program Guide) service providing unit(100) transmits EPG information to the mobile broadcasting network or EPG information requested in the mobile reception terminal. A mobile reception terminal(200) recommends EPG information with reference to the user-liked information. The mobile reception terminal provides the personalization EPG information. An EPG information receiving unit(201) successively receives EPG information including the other broadcasting program organization information from one or more EPG service providing unit. The EPG information processing unit performs the formatting of the arranged data.
Abstract:
A burst off control apparatus and a method thereof for decreasing unnecessary burst on state in a digital video broadcasting receiver and reducing power are provided to improve power efficiency by burst off by calculating burst boundary optimal value. An RF/demodulator(1030) operates an on/off command from a time slicing processor(1000). An RSSI(Received Signal Strength Indication) and BER(Bit Error Rate) are measured. A delta-T coefficient(1004) initializes coefficient key if the coefficient starting command is received. An MBD(Max Bursty Duration) coefficient(1010) measures burst length to a point of time by receiving the control of the controller. A burst size calculation unit(1006) measures the burst size of reference burst by receiving the control of the controller. A burst bandwidth calculation unit calculates the bandwidth of the reference burst by using the length of reference burst.