WO2008069548A1 - Récepteur de diffusion multimédia numérique complexe - Google Patents

Récepteur de diffusion multimédia numérique complexe Download PDF

Info

Publication number
WO2008069548A1
WO2008069548A1 PCT/KR2007/006250 KR2007006250W WO2008069548A1 WO 2008069548 A1 WO2008069548 A1 WO 2008069548A1 KR 2007006250 W KR2007006250 W KR 2007006250W WO 2008069548 A1 WO2008069548 A1 WO 2008069548A1
Authority
WO
WIPO (PCT)
Prior art keywords
data
wireless communication
moving image
dmb
decoded
Prior art date
Application number
PCT/KR2007/006250
Other languages
English (en)
Inventor
Jong-Boo Kim
Original Assignee
Park, Yong-Woon
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Park, Yong-Woon filed Critical Park, Yong-Woon
Publication of WO2008069548A1 publication Critical patent/WO2008069548A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/76—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet
    • H04H60/78—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by source locations or destination locations
    • H04H60/80—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by source locations or destination locations characterised by transmission among terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/76—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet
    • H04H60/81—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself
    • H04H60/82—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself the transmission system being the Internet
    • H04H60/83—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself the transmission system being the Internet accessed over telephonic networks
    • H04H60/85—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself the transmission system being the Internet accessed over telephonic networks which are mobile communication networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving

Definitions

  • the present invention relates to a complex digital multimedia broadcast (DMB) receiver, and more particularly to a complex DMB receiver which not only has a multimedia function but also can transmit a received digital multimedia broadcast to a counterpart Internet address through a wireless network or can receive various data from a counterpart terminal through a wireless network.
  • DMB digital multimedia broadcast
  • DMB Digital Multimedia Broadcasting
  • radio radio
  • TV video
  • DMB was initially developed to provide digital radio services so that it could process audio data at a rate of up to 380kbps.
  • DMB can provide moving image services since it can process data at a rate higher than 380kbps.
  • DMB Digital multimedia broadcasting
  • DMBs can be mainly divided into satellite DMBs and terrestrial DMBs. Like general TV broadcasts, terrestrial DMBs are transmitted by a transmitting station so that users view the DMBs by receiving the corresponding signals. Satellite DMBs are broadcast all over the country through satellites.
  • the terrestrial DMBs provide various contents such as music, text, and moving images through mobile terminals such as small TVs or PDAs.
  • Terrestrial DMBs can be implemented so as to be complementary with digital terrestrial TV broadcasts, so that services combined with mobile communication terminals will create great demand.
  • the satellite DMBs provide multimedia broadcast services including audio, extra data, or moving images to a stationary, mobile, and portable receiver through satellites.
  • the satellite DMBs can provide audio broadcast services of various qualities at a low cost and can cover a wide area and significantly increase the available broadcasting range using satellites.
  • terrestrial and satellite DMBs are similar to the differences between general and satellite TV broadcasts. That is, terrestrial DMBs can be viewed for free while satellite DMBs are provided at some cost due to the usage fees of satellites. Another difference is that satellite DMBs are currently provided over tens of channels while terrestrial DMBs are provided over a smaller number of channels. However, it is expected that the number of channels of terrestrial DMBs will be gradually increased.
  • FIG. 1 is a conceptual diagram of general digital broadcasting.
  • signals such as video and audio signals produced at a broadcasting station are transmitted through a transmitting earth station and a geosynchronous satellite is used as a repeater to send the signals to a distant receiving earth station.
  • a terrestrial digital broadcasting station transmits signals to a digital broadcasting satellite.
  • the satellite receives the signals and transmits them as downstream signals through an S-band of 2GHz-4GHz.
  • signals such as video and audio signals produced at a broadcasting station are transferred to a repeater, which then sends them as downstream signals through a UHF or VHF or L-band.
  • Such digital broadcast signals are received by mobile and stationary digital broadcast receivers to allow users to view various moving images.
  • Terrestrial DMB receivers currently available in this country can provide combinations of a PMP function for storing MPEG-4 moving images, an MP3 function, an electronic dictionary function for students, a digital camera function, and the like.
  • any currently developed or productized technologies do not allow a DMB receiving module to transmit data to a counterpart Internet address through a wireless network or to receive various data from a counterpart terminal through a wireless network and then to store or display the received data. Disclosure of Invention Technical Problem
  • the present invention has been made in view of the above problems, and it is an object of the present invention to provide a complex DMB receiver which not only has a multimedia function but also can transmit a received digital multimedia broadcast to a counterpart Internet address through a wireless network or can receive various data from a counterpart terminal through a wireless network.
  • a complex digital multimedia broadcast (DMB) receiver comprising an antenna for receiving DMB signals; a tuner that is tuned to and filters a specific frequency band of a DMB signal received from the antenna; a decoder for extracting moving image data and an audio signal included in the tuned frequency and then decoding and outputting the decoded moving image data and audio signal according to a preset format; an audio processor for converting the audio signal decoded by the decoder into an analog audio signal and outputting the analog audio signal; a video/graphics processor for converting the moving image data decoded by the decoder into an analog signal and outputting the analog signal; a display unit for displaying the moving image signal output from the video/graphics processor on a screen; a wireless communication module for receiving the data decoded by the decoder and storing the decoded data in storage means or transmitting the decoded data in real time to a specific Internet address through a wireless communication
  • DMB digital multimedia broadcast
  • the main controller measures transmission and reception sensitivities of the wireless communication antenna and displays the measured transmission and reception sensitivities on the display unit.
  • the wireless communication module communicates wireless data with an external terminal using a wireless Internet including Wibro or HSDPA or using a mobile phone network including CDMA or GSM.
  • the complex DMB receiver according to the invention not only has a multimedia function but also can transmit a received digital multimedia broadcast to a counterpart Internet address through a wireless network or can receive various data from a counterpart terminal through a wireless network, thereby making it possible to provide two-way Internet services.
  • FIG. 1 is a conceptual diagram of general digital broadcasting
  • FIG. 2 illustrates the overall configuration of a complex DMB receiver according to an embodiment of the invention.
  • a complex digital multimedia broadcast receiver includes a first storage unit 10, an antenna 5, a tuner 20, a decoder 30, an audio processor 40, a video/graphics processor 50, a main controller 60, a display unit 70, a second storage unit 80, and a wireless communication module 90.
  • the first storage unit 10 stores an operating program through which the main controller operates an entire system of the DMB receiver.
  • the antenna 5 receives digital multimedia broadcast (DMB) signals.
  • the tuner 20 receives a frequency tuned according to a frequency tuning signal received from the main controller 60.
  • the decoder 30 In response to a control signal received from the main controller 60, the decoder 30 extracts moving image data and an audio signal included in the tuned frequency and then decodes and outputs the moving image data and audio signal according to a preset format.
  • the audio processor 40 converts the audio signal decoded by the decoder 30 into an analog audio signal and outputs the analog audio signal.
  • the video/graphics processor 50 converts the moving image data decoded by the decoder 30 into an analog signal and outputs the analog signal.
  • the display unit 70 displays the moving image signal output from the video/graphics processor 50 on a screen according to control of the main controller 60.
  • the second storage unit 80 stores moving image data processed by the video/graphics processor 50.
  • the wireless communication module 90 receives the data decoded by the decoder 30 and stores the decoded data in storage means 97 or transmits the decoded data in real time to a specific Internet address through a wireless communication antenna 95 or transmits data stored in the storage means 97 to a specific Internet address through the wireless communication antenna 95 or stores data received through the wireless communication antenna 95 in the storage means 97.
  • the main controller 60 outputs the frequency tuning signal to the tuner 20 and controls the entire system according to the operating program stored in the first storage unit 10 so as to provide moving image data and an audio signal included in a frequency tuned by the tuner 20 to the user and also to allow the wireless communication module 90 to communicate (i.e., transmits and receives) wireless data through the wireless communication antenna 95.
  • FIG. 2 illustrates the overall configuration of a complex DMB receiver according to an embodiment of the invention.
  • the complex DMB receiver according to the invention is designed so as to receive and decode a DMB signal and output the decoded DMB signal through a display device or a speaker provided in the receiver in response to a request from a user or to communicate wireless data with an external terminal through an additionally-installed wireless communication module via a wireless Internet or a mobile phone network.
  • the complex DMB receiver includes a first storage unit 10, an antenna 5, a tuner 20, a decoder 30, an audio processor 40, a video/graphics processor 50, a main controller 60, a display unit 70, a second storage unit 80, and a wireless communication module 90.
  • the first storage unit 10 stores an operating program through which the main controller operates an entire system of the DMB receiver.
  • the antenna 5 receives DMB signals.
  • the tuner 20 receives a frequency tuned according to a frequency tuning signal received from the main controller 60.
  • the decoder 30 In response to a control signal received from the main controller 60, the decoder 30 extracts moving image data and an audio signal included in the tuned frequency and then decodes and outputs the moving image data and audio signal according to a preset format.
  • the audio processor 40 converts the audio signal decoded by the decoder 30 into an analog audio signal and outputs the analog audio signal.
  • the video/graphics processor 50 converts the moving image data decoded by the decoder 30 into an analog signal and outputs the analog signal.
  • the display unit 70 displays the moving image signal output from the video/graphics processor 50 on a screen according to control of the main controller 60.
  • the second storage unit 80 stores moving image data processed by the video/graphics processor 50.
  • the wireless communication module 90 receives the data decoded by the decoder 30 and stores the decoded data in storage means 97 or transmits the decoded data in real time to a specific Internet address through a wireless communication antenna 95 or transmits data stored in the storage means 97 to a specific Internet address through the wireless communication antenna 95 or stores data received through the wireless communication antenna 95 in the storage means 97.
  • the main controller 60 outputs the frequency tuning signal to the tuner 20 and controls the entire system according to the operating program stored in the first storage unit 10 so as to provide moving image data and an audio signal included in a frequency tuned by the tuner 20 to the user and also to allow the wireless communication module 90 to communicate wireless data through the wireless communication antenna 95.
  • the DMB receiver also includes a first port through which it outputs moving image data processed by the video/graphics processor 50.
  • the first port is a USB port which allows the DMB receiver to transmit the moving image data received through the antenna to a computer system connected through the USB port.
  • the DMB receiver includes a second port to output data for high-speed digital moving image processing.
  • the second port is an RS 1394 port.
  • the second storage unit 80 includes a hard disk, a flash memory, an external storage medium, and any other storage medium.
  • the second storage unit 80 includes any of internal and external storage devices.
  • the user of the DMB receiver can set a desired frequency band or channel and receive a digital multimedia broadcast received through the frequency band.
  • the main controller 60 of the DMB receiver receives a key signal corresponding to the channel selected by the user and outputs a frequency tuning signal corresponding to the key signal to the tuner 20.
  • the frequency tuning signal is provided to select the channel of the frequency band.
  • the tuner 20 then receives only a signal of the channel corresponding to the frequency tuning signal of the main controller 60 among signals received through the antenna 5 and outputs the received signal to the decoder 30.
  • the decoder 30 decodes the received signal into a channel, moving image data, and audio data according to a preset format and outputs the audio data to the audio processor 40 and outputs the moving image data to the video/graphics processor 50.
  • the audio data which is to be decoded by the decoder 30, has been basically encoded according to MPEG 1 Layer 2 or MPEG 2 Layer 2 or advanced audio coding
  • the decoder 30 converts a signal received from the tuner 20 into a digital signal and separates the digital signal into audio and video signals and outputs the audio and video signals to the audio processor 40 and the video/graphics processor 50, respectively.
  • the decoder 30 separates a signal multiplexed according to the DAB standard into a digital audio signal, a digital moving image signal, a digital extra data signal, and the like and outputs the signals to their corresponding processing blocks.
  • the audio processor 40 then converts the audio data into an analog signal and outputs the analog signal to L and R ports of the speaker.
  • the video/graphics processor 50 performs signal processing of the decoded moving image data so that the moving image data can be output through the display unit 70 (i.e., an LCD).
  • the video/graphics processor 50 also outputs the moving image signal to the USB port or the RS 1394 port provided on the DMB receiver 100.
  • the USB port is connected to a computer system to allow the user to store received moving images in the computer system and then to again view them at a later time.
  • the audio processor 40 separately performs audio processing so that audio data is output, together with moving image data, to the USB port, the RS 1394 port, and the second storage unit 80.
  • the main controller 60 controls the video/graphics processor 50 to store moving image data and audio data decoded by the decoder 30 in the second storage unit 80.
  • the decoder 30 and the video/graphics processor 50 according to the invention can process MPEG-4 compressed moving image data and also can process different types of moving images from the MPEG-4 images.
  • the audio data in the invention has been encoded according to advance audio coding (AAC) compatible with MPEG-r moving images or has been encoded according to bit slice arithmetic coding (BSAC).
  • AAC advance audio coding
  • BSAC bit slice arithmetic coding
  • the data decoded by the decoder 30 can be transferred to the wireless communication module 90 according to control of the main controller 60.
  • the data input to the wireless communication module 90 can be stored in the third storage unit 97 or can be transmitted in real time to a wireless network through the wireless communication antenna 95 according to control of the main controller 60.
  • the wireless communication module According to control of the main controller 60, the wireless communication module
  • a wireless network for example through a wireless Internet such as Wibro or HSDPA or a mobile phone network such as CDMA or GSM.
  • a wireless Internet such as Wibro or HSDPA
  • a mobile phone network such as CDMA or GSM.
  • the wireless communication module According to control of the main controller 60, the wireless communication module
  • the 90 can transmit data stored in the third storage unit 97 to a specific Internet address through the wireless communication antenna 95.
  • the stored data can be transmitted to a counterpart terminal (computer or mobile terminal) through the wireless network after the data is processed using an edit function provided by an OS installed on the wireless communication module 90.
  • Wireless data received through the wireless communication antenna 95 can be stored in the third storage means 97 or the stored data can be displayed on the display unit 70 according to control of the main controller 60.
  • the third storage means 97 may be one or two or more of an external memory, or a hard disk, and an SD card.
  • the main controller 60 When transmitting and receiving wireless data to and from the counterpart terminal through the wireless communication module 90, the main controller 60 continuously measures transmission and reception sensitivities of the wireless communication antenna 95 and outputs the reception sensitivity to the (LCD) display unit 70 through the video/graphics processor 50.
  • the main controller 60 checks the status of wireless Internet connection with the counterpart terminal by continuously measuring the transmission and reception sensitivities of the wireless communication antenna 90 and displays the checked result on the display unit 70.
  • the main controller 60 controls the overall components of the complex DMB receiver according to the invention to allow the digital multimedia broadcast to be provided to the user through the display unit and to allow the wireless communication module to communicate wireless data through the wireless communication antenna so that the complex DMB receiver can provide two-way Internet services.
  • the complex DMB receiver according to the preferred embodiments of the invention constructed as described above, is very useful in digital broadcast fields since it not only has a multimedia function but also can transmit a received digital multimedia broadcast to a counterpart Internet address through a wireless network or can receive various data from a counterpart terminal through a wireless network, thereby making it possible to provide two-way Internet services.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Circuits Of Receivers In General (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

L'invention concerne un récepteur de diffusion multimédia numérique (DMB) complexe qui comprend non seulement une fonction multimédia mais qui peut également envoyer une émission multimédia numérique reçue à une adresse Internet homologue par le biais d'un réseau sans fil et peut recevoir diverses données du terminal homologue par le biais du réseau sans fil.
PCT/KR2007/006250 2006-12-05 2007-12-04 Récepteur de diffusion multimédia numérique complexe WO2008069548A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020060122362A KR100857520B1 (ko) 2006-12-05 2006-12-05 복합형 디지털 멀티미디어 방송 수신기
KR10-2006-0122362 2006-12-05

Publications (1)

Publication Number Publication Date
WO2008069548A1 true WO2008069548A1 (fr) 2008-06-12

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PCT/KR2007/006250 WO2008069548A1 (fr) 2006-12-05 2007-12-04 Récepteur de diffusion multimédia numérique complexe

Country Status (2)

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KR (1) KR100857520B1 (fr)
WO (1) WO2008069548A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108199797A (zh) * 2018-03-02 2018-06-22 朱志国 Dmb+多媒体移动组合终端

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050033304A (ko) * 2003-10-06 2005-04-12 엘지전자 주식회사 Ｄｍｂ 수신기
WO2005071964A1 (fr) * 2004-01-27 2005-08-04 Matsushita Electric Industrial Co., Ltd. Appareil recepteur de television et systeme de diffusion numerique
US20050177848A1 (en) * 2004-02-05 2005-08-11 Lg Electronics Inc. Display device and method of managing list of channel information in video display device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030062747A (ko) * 2002-01-18 2003-07-28 (주)프리샛 코리아 변복조장치 및 외부장치와 연동하는 저장매체를 구비한디지털 오디오 방송 수신기
KR100490258B1 (ko) * 2003-04-30 2005-05-17 실리샌드 주식회사 디지털 오디오 방송 수신기와 그의 동작방법

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050033304A (ko) * 2003-10-06 2005-04-12 엘지전자 주식회사 Ｄｍｂ 수신기
WO2005071964A1 (fr) * 2004-01-27 2005-08-04 Matsushita Electric Industrial Co., Ltd. Appareil recepteur de television et systeme de diffusion numerique
US20050177848A1 (en) * 2004-02-05 2005-08-11 Lg Electronics Inc. Display device and method of managing list of channel information in video display device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108199797A (zh) * 2018-03-02 2018-06-22 朱志国 Dmb+多媒体移动组合终端

Also Published As

Publication number Publication date
KR20080051389A (ko) 2008-06-11
KR100857520B1 (ko) 2008-09-08

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