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WO2008056925A1 - Complex type dmb receiver - Google Patents

Complex type dmb receiver Download PDF

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Publication number
WO2008056925A1
WO2008056925A1 PCT/KR2007/005571 KR2007005571W WO2008056925A1 WO 2008056925 A1 WO2008056925 A1 WO 2008056925A1 KR 2007005571 W KR2007005571 W KR 2007005571W WO 2008056925 A1 WO2008056925 A1 WO 2008056925A1
Authority
WO
WIPO (PCT)
Prior art keywords
data
main processor
processor
complex type
tcp
Prior art date
Application number
PCT/KR2007/005571
Other languages
French (fr)
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 WO2008056925A1 publication Critical patent/WO2008056925A1/en

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Classifications

    • 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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • 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
    • H04N21/43637—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems

Definitions

  • the present invention relates to a complex type DMB (digital multimedia broadcasting) receiver, and more particularly to a complex type DMB receiver capable of local area wireless transmission/reception and being connected to an internet that can perform a multimedia function and a function of small- sized computer by TCP/IP chipset integrated or separated from a main processor, and be connected to an external terminal located in a local area through a WPAN (wireless personal area network) local area wireless communication by being directly connected to the internet or using a WPAN transmission/reception module, thereby storing various types of moving images or transmitting/receiving various data and displaying the data.
  • WPAN wireless personal area network
  • DMB digital multimedia broadcasting
  • radio radio
  • picture services i.e., TV
  • the DMB has been developed for the digital ization of radio, and it can process audio signal at a speed of 380 Rbps.
  • the DMB can process additional data higher than the speed, and thus it can provide moving image services.
  • a TV receiver has been provided in some conventional cars.
  • the TV receiver generates some noises or its connection was cut off, because of a low reception rate of radio wave.
  • the DMB i.e., a sort of mobile TV.
  • the currently broadcasted DMB provides a user with high definition broadcasting without disconnection, and enables the user to watch DMB through a mobile phone according to development of slimming technology.
  • the DMB is generally classified into satellite digital multimedia broadcasting (S-DMB) and terrestrial digital multimedia broadcasting (T-DMB).
  • S-DMB satellite digital multimedia broadcasting
  • T-DMB terrestrial digital multimedia broadcasting
  • the T-DMB by catching radio waves transmitted from a transmitting station like a general TV, and the S-DMB enables a user to watch broadcasting by scattering radio waves all over the country through a satellite.
  • the T-DMB transmits various contents such as music, short messages, moving images, etc., through portable terminals such as a small-sized TV and a PDA, due to an excellent characteristic of mobile reception, and can create great demand through services combined with a mobile communication terminal by constructing a complementary connection with the terrestrial digital TV broadcasting.
  • the S-DMB provides multimedia broadcasting services including audios, additional data or moving images to a fixed receiver, a mobile receiver or a portable receiver through a satellite, and can supply audio broadcasting services in various qualities at a low cost and greatly expand a service range of the conventional broadcasting by covering wide regions due to use of a satellite.
  • the difference between the T-DMB and S-DMB is the same as that of general TV broadcasting and satellite TV broadcasting.
  • the T- DMB provides a user with free broadcasting.
  • the user should pay some fee for watching the S-DMB because of a charge for satellite usage.
  • the number of channels of the T-DMB is currently smaller than that of channels of the S-DMB.
  • FIG. 1 is a conceptual diagram illustrating general digital broadcasting.
  • satellite broadcasting transmits video/audio signals produced by a broadcasting station through a transmission earth station and transmits a signal to a reception earth station at a distant place using a satellite, that is, a geostationary satellite as a repeater.
  • a ground digital broadcasting station transmits a signal to a satellite for digital broadcasting, and the transmitted signal is received from the satellite and downstreamed through an S ⁇ band ranging from 2 GHz to 4.
  • terrestrial broadcasting transmits video/audio signals produced by a broadcasting station to a repeater and the transmitted video/audio signals are downstreamed through a UHF or a VHF, or an L-band. Then, the digital broadcasting signal received to a mobile and a fixed digital broadcasting receiver enables a user to watch various types of moving images.
  • a T-DMB receiver currently serviced within the country can provide services compositively for a PMP function of storing moving images of MPEG-4 series, a MP3 function, an electronic dictionary function for students, a digital camera function, etc.
  • an object of the present invention is to provide a complex type DMB receiver capable of local area wireless transmission/reception and being connected to an internet, that can perform a multimedia function and a function of small-sized computer by TCP/IP chipset integrated or separated from a main processor, and be connected to an external terminal located in a local area through a WPAN local area wireless communication by being directly connected to the internet or using a WPAN transmission/reception module, thereby storing or displaying various types of moving images.
  • a complex type DMB receiver capable of local area wireless transmission/reception and being connected to an internet, which includes an antenna receiving a DMB signal, a front end unit selecting a specific channel for the DMB signal inputted from the antenna and performing filtering on the signal, a decoder performing channel decoding for the DMB signal inputted from the front end unit and then performing audio decoding and data decoding, a main processor outputting a decoding data inputted from the decoder, or encoding the decoding data into MPEG-4 format and storing the data in a memory or storing an input data in the memory or decoding and outputting the input data, a display interface performing interfacing so as to output the decoding data outputted from the main processor to an LCD, a TCP/IP processor enabling the main processor to perform data communication through the internet, a communication interface performing interfacing so as to connect the TCP/IP processor to the internet, and a WPAN transmission/reception module enabling the main processor to perform
  • the main processor and the TCP/IP processor respectively formed of separate chipsets may transmit/receive data with each other.
  • the chipsets forming the TCP/IP processor may be formed to be attached and detached, and the chipset forming the TCP/IP processor may receive power source from an external power supply.
  • the TCP/IP processor may be integrated into the main processor so as to perform a TCP/IP function.
  • the DMB receiver may further include an USB port or an IEEE-1394 port performing data communication with an external terminal connected to the internet .
  • the Windows OS program is installed in the main processor, thereby allowing the main processor to process one function or more than two functions simultaneously of DMB receiving processing, navigation function processing, PMP function processing, MP3 function processing, digital camera function processing, electronic dictionary function processing, internet connection processing and WPAN transmission/reception processing.
  • the input data decoded by the main processor may a data stored in the memory or an internet communication data inputted through the TCP/IP processor or a local area wireless communication data inputted through the WPAN transmission/reception module.
  • the memory may be formed of an internal memory and an external memory.
  • the internal memory may be a flash memory or a hard disk and the external memory may be any one of a SD card, a CF card, a USB memory and an external type hard disk.
  • the main processor may store a WPAN local area communication data inputted from the WPAN transmission/reception module in the memory, or displays the data on an LCD through the display interface.
  • the WPAN local area wireless data stored in the memory may be displayed on the LCD through the display interface by means of the main processor, or transmitted to the external terminal through the WPAN transmission/reception module, or transferred to the internet through the TCP/IP processor.
  • the complex type DMB (digital multimedia broadcasting) receiver capable of local area wireless transmission/reception and being connected to the internet of the present invention produces following effects.
  • the complex type DMB receiver can store or display various types of moving images by being directly connected to the internet because it performs a multimedia function and a function of small-sized computer by TCP/IP chipset integrated or separated from the main processor.
  • the TCP/IP chipset enabling internet communication can be kept separately or used as an accessory according to case of use because the TCP/IP chipset can be attached and detached in some cases.
  • the DMB receiver includes WPAN transmission/reception module, and thus can receive, store or display various types of moving images by being connected to the external terminal located in a local area using WPAN local area wireless communication.
  • FIG. 2 is a block diagram of a complex type DMB receiver capable of local area wireless transmission/reception and being connected to the internet according to the present invention.
  • the DMB receiver includes an antenna 110 receiving a digital broadcasting signal from a satellite or the ground, a front end unit 120 selecting a channel for the broadcasting signal and performing filtering on the signal, a decoder 130 decoding the filtered broadcasting signal, a main processor 140 outputting a decoded data inputted from the decoder 130, or encoding the data into MPEG-4 format and storing the data in a memory or storing an input data in the memory or decoding and outputting the input data, a display interface 170 performing interfacing so as to output the decoded data outputted from the main processor 140 to an LCD, a TCP/IP processor 150 enabling the main processor 140 to perform data communication through the internet, a communication interface 160 performing interfacing so as to connect the TCP/IP processor 150 to the internet, and a WPAN transmission/reception module 200 enabling the main processor 140 to perform local area wireless communication with a terminal in a local area through the WPAN.
  • FIG. 2 is a block diagram of a complex type DMB receiver capable of local area wireless transmission/reception and connection to the internet according to the present invention.
  • the DMB receiver includes an antenna 110 receiving a digital broadcasting signal from a satellite or the ground, a front end unit 120 selecting a channel for the broadcasting signal and performing filtering on the signal, a decoder 130 decoding the filtered broadcasting signal, a main processor 140 outputting a decoding data inputted from the decoder 130 or encoding the data into MPEG-4 format and storing the data in a memory, or storing an input data in the memory or decoding and outputting the O
  • a display interface 170 performing interfacing so as to output the decoded data outputted from the main processor 140 to an LCD
  • a TCP/IP processor 150 enabling the main processor L40 to perform data communication through the internet
  • a communication interface 160 performing interfacing so as to connect the TCP/IP processor 150 to the internet
  • a WPAN transmission/reception module 200 enabling the main processor 140 to perform local area wireless communication with a terminal in a local area through the WPAN.
  • the antenna 110 receives a predetermined digital broadcasting signal transmitted from a satellite or a base station and a carrier signal including general data information, and then transmits the signals to the front end unit 120 described below.
  • the antenna 110 receives a predetermined digital broadcasting signal transmitted from a terrestrial wave transmitter and transmits the signal to the front end unit L20 described below.
  • the front end unit 120 receives the digital broadcasting signal received from the antenna 110 and selects a channel in a specific frequency band according to a control signal of the main processor 140 described below. In addition, the front end unit 120 performs filtering on the digital broadcasting signal transmitted through the selected channel, and outputs only signal within a base band and then transmits the signal to the decoder 130 described below.
  • the decoder 130 receives the digital broadcasting signal of the base band transmitted from the front end unit 120 and performs demodulation into a desired digital broadcasting signal according to a control signal of the main processor 140, and divides the digital signal into picture data (audio/video data) and various types of additional data.
  • the divided audio/video data and various types of additional data are decoded by a predetermined decoder forming the decoder 130 and transmitted to the main processor 140.
  • the audio data corresponding to the additional data is outputted through a speaker 180.
  • the main processor 140 receives the digital picture data decoded by the decoder 130 and outputs decoding data and displays the data on an LCD (not shown) through the display interface 170, thereby enabling a user to watch digital broadcasting in real time, or to encode the digital picture data decoded in MPEG-4 format and output the data to a memory 190 described below.
  • the main processor 140 decodes and outputs an input data related to moving images stored in the memory 190 or an input data related to internet communication inputted through the TCP/IP processor 150 described below. As such, the decoded data related to the outputted moving images is displayed on the LCD (not shown) through the display interface 170, and the audio data is outputted through the speaker 180.
  • the data decoded and inputted by the main processor 140 is a data stored in the memory 190 or an internet communication data inputted through the TCP/IP processor 150.
  • the decoded data is outputted to the LCD through the display interface 170.
  • the main processor 140 enables local area wireless communication with other terminals located in a local area through the WPAN transmission/reception module 200 described below. Accordingly, the main processor 140 stores the local area wireless communication data inputted through the WPAN transmission/reception module 200 in the memory 190 or displays the data on the LCD (not shown) through the display interface 170.
  • the memory 190 is formed of an internal memory 191 embedded in the DMB receiver and an external memory 193 capable of being inserted from the outside.
  • a flash memory or a hard disk can be used as the internal memory 191, and one, or two or more of a SD card, a CF card, a USB memory card and an external hard disk may be used as the external memory 193.
  • the MPEG-4 is a picture compression technology based on multimedia communication, and means a standard for data compression and restoration technology developed for sending moving images at a low transmission rate.
  • the MPEG-4 is widely used in fields of multimedia communication, video conference system, broadcasting, movie, education, entertainment, etc., in an internet wire network and a wireless network such as a mobile communication network by implementing moving images at a low transmission rate of 64 and 19.2 Kbps per second.
  • the memory 190 stores decoded moving image data, that is, the digital broadcasting signal inputted from the decoder 130, moving image data related to internet communication inputted through the TCP/IP processor 150 and local area wireless communication data inputted through the WPAN transmission/reception module 200, and outputs the stored moving image data to the main processor 140, according to the control signal of the main processor 140.
  • the memory 190 can store moving image data downloaded from an external terminal (not shown), in addition to moving image data, that is, the digital broadcasting signal transmitted from the main processor 140.
  • the DMB receiver can include an external input unit (not shown) capable of being connected to external terminals such as a PC or a mobile phone, and thus download various types of moving image data stored in the PC or the mobile phone and store the data in the memory 190.
  • the external terminal is a terminal connectable to the internet
  • the DMB receiver includes a USB port or an JEEE-1394 port corresponding to the external data input unit, so as to perform data communication with the connection to the external terminal.
  • the display interface 170 performs an interface function so as to display moving image data outputted through the main processor 140 on an LCD (not shown).
  • the display interface 170 performs interfacing so as to display a digital broadcasting signal outputted from the main processor 140 via the decoder 130, or moving image data decoded and outputted by the main processor 140 after storage in the memory 190, or internet communication data related to moving images inputted through the TCP/IP processor 150 and then decoded and outputted by the main processor 140, or various types of data that is inputted through the WPAN transmission/reception module 200 and decoded and then outputted by the main processor 140, on the LCD.
  • the TCP/IP processor 150 enables the main processor 140 to perform data communication through the internet.
  • the TCP/IP processor 150 can be connected to the internet by interfacing of the communication interface 160.
  • the TCP/IP processor 150 can be formed of separate chipset different from the chipset forming the main processor 140.
  • the TCP/IP processor 150 can be integrated into the main processor 140, and thus the chipset forming the main processor 140 can perform a function. In this case, the main processor 140 performs the function of the TCP/IP processing.
  • main processor 140 and the TCP/IP processor 150 are respectively formed of different chipsets, it is possible to increase the data processing capacity of the main processor 140 and improve a multimedia funct ion.
  • the chipset forming the TCP/IP processor 150 can be attached/detached to/from the DMB receiver directly connected to the internet.
  • the chipset forming the TCP/IP processor 150 can be attached to the DMB receiver and detached in other cases. In this time, it is desirable that the chipset forming the TCP/IP processor 150 receives power source from an external power supply instead of an internal battery.
  • the complex type DMB receiver includes the WPAN transmission/reception module 200 so as to perform local area wireless communication with other terminals located in a local area through WPAN local area wireless communication. Accordingly, the main processor 140 can transmit/receive local area wireless communication data to/from other terminals located in a local area through the WPAN transmission/reception module 200.
  • the complex type DMB receiver can be directly connected to the internet and thus a user can access to a specific site for education by connecting the DMB receiver to the internet, and select moving images for education or various types of moving image contents and then store the images or contents in the DMB receiver or watch them through an LCD.
  • the complex type DMB receiver can receive local area wireless communication data such as moving images, music, etc., from other terminals located in a local area through the WPAN transmission/reception module 200, and then store the data in the memory 190 or display the data on an LCD.
  • the DMB receiver can transmit various types of data stored in the memory 190 to other terminals located in a local area through the WPAN transmission/reception module 200.
  • the main processor 140 controls operation of respective components generally and the digital broadcasting signal received by the DMB receiver or moving image data downloaded from an external terminal so as to be displayed on the LCD of the DMB receiver.
  • the main processor 140 controls internet communication data related to the moving images inputted through the TCP/IP processor 150 so as to be stored in the memory 190 or displayed on the LCD by being connected to the internet.
  • the main processor 140 controls WPAN local area wireless data inputted from the WPAN transmission/reception module 200 so as to be stored in the memory 190 or displayed on the LCD through the display interface 170.
  • the main processor 140 controls WPAN local area wireless data stored in the memory 190 so as to be displayed on the LCD through the display interface 170, or transmitted to a terminal located in a local area through the WPAN transmission/reception module 200, or transferred to the internet through the TCP/IP processor 150.
  • the Windows OS is installed in the main processor 140, thereby allowing the main processor 140 to control so as to process one function or more than two functions simultaneously of DMB receiving processing (processed by a DMB receiving processor forming the main processor), navigation function processing (processed by a navigation processor forming the main processor), PMP function processing (processed by a PMP function processor forming the main processor), MP3 function processing (processed by an MP3 processor forming the main processor), digital camera function processing (processed by a digital camera processor forming the main processor), electronic dictionary function processing (processed by an electronic dictionary processor forming the main processor), internet connection processing (processed by an internet communication processor forming the main processor) and WPAN transmission/reception processing (processed by a WPAN transmission/reception processor forming the main processor).
  • the control signal of the main processor 140 can be generated by various types of keypads (not shown) provided on the DMB receiver.
  • the present invention relates to the complex type digital multimedia broadcasting (DMB) receiver capable of local area wireless communication and being connected to the internet, that can perform a multimedia function and a function of small computer by TCP/IP chipset integrated or separated from the main processor. Accordingly, the present invention is very useful to a digital broadcasting industry.
  • DMB digital multimedia broadcasting

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

Abstract

The present invention is related to a complex type digital multimedia broadcasting (DMB) receiver, and more particularly to a complex type DMB receiver capable of local area wireless communication and being connected to an internet that can perform a multimedia function and a function of small- sized computer by TCP/IP chipset integrated or separated from a main processor, and be connected to an external terminal located in a local area through a WPAN (wireless personal area network) local area wireless communication by being directly connected to the internet or using a WPAN transmission/reception module, thereby storing or displaying various types of moving pictures.

Description

[DESCRIPTION] [Invention Title]
COMPLEX TYPE DMB RECEIVER [Technical Field]
<i> The present invention relates to a complex type DMB (digital multimedia broadcasting) receiver, and more particularly to a complex type DMB receiver capable of local area wireless transmission/reception and being connected to an internet that can perform a multimedia function and a function of small- sized computer by TCP/IP chipset integrated or separated from a main processor, and be connected to an external terminal located in a local area through a WPAN (wireless personal area network) local area wireless communication by being directly connected to the internet or using a WPAN transmission/reception module, thereby storing various types of moving images or transmitting/receiving various data and displaying the data.
<2>
[Background Art]
<3> DMB (digital multimedia broadcasting) is mobile multimedia broadcasting enabling a user to enjoy high quality of audio (i.e., radio) and picture services (i.e., TV) while moving around. The DMB has been developed for the digital ization of radio, and it can process audio signal at a speed of 380 Rbps. However, the DMB can process additional data higher than the speed, and thus it can provide moving image services.
<4> A TV receiver has been provided in some conventional cars. However, there is a problem that the TV receiver generates some noises or its connection was cut off, because of a low reception rate of radio wave. Recently, in order to solve the problem, the DMB, i.e., a sort of mobile TV, has been commercially developed. The currently broadcasted DMB provides a user with high definition broadcasting without disconnection, and enables the user to watch DMB through a mobile phone according to development of slimming technology.
<5> The DMB is generally classified into satellite digital multimedia broadcasting (S-DMB) and terrestrial digital multimedia broadcasting (T-DMB). The T-DMB, by catching radio waves transmitted from a transmitting station like a general TV, and the S-DMB enables a user to watch broadcasting by scattering radio waves all over the country through a satellite.
<6> The T-DMB transmits various contents such as music, short messages, moving images, etc., through portable terminals such as a small-sized TV and a PDA, due to an excellent characteristic of mobile reception, and can create great demand through services combined with a mobile communication terminal by constructing a complementary connection with the terrestrial digital TV broadcasting.
<7> The S-DMB provides multimedia broadcasting services including audios, additional data or moving images to a fixed receiver, a mobile receiver or a portable receiver through a satellite, and can supply audio broadcasting services in various qualities at a low cost and greatly expand a service range of the conventional broadcasting by covering wide regions due to use of a satellite.
<8> The difference between the T-DMB and S-DMB is the same as that of general TV broadcasting and satellite TV broadcasting. In other words, the T- DMB provides a user with free broadcasting. However, the user should pay some fee for watching the S-DMB because of a charge for satellite usage. In addition, the number of channels of the T-DMB is currently smaller than that of channels of the S-DMB. However it is predicted that the number of channels of the T-DMB will be gradually increased.
<(>> According to current technological progress, a user will enjoy high definition broadcasting on a HD TV at home and watch digital multimedia broadcasting while moving around, in other words, driving a car or watching broadcasting through a mobile phone or a PDA.
<ιo> FIG. 1 is a conceptual diagram illustrating general digital broadcasting.
<ii> Referring to FIG. 1, satellite broadcasting transmits video/audio signals produced by a broadcasting station through a transmission earth station and transmits a signal to a reception earth station at a distant place using a satellite, that is, a geostationary satellite as a repeater. In other words, a ground digital broadcasting station transmits a signal to a satellite for digital broadcasting, and the transmitted signal is received from the satellite and downstreamed through an S~band ranging from 2 GHz to 4. On the other hand, terrestrial broadcasting transmits video/audio signals produced by a broadcasting station to a repeater and the transmitted video/audio signals are downstreamed through a UHF or a VHF, or an L-band. Then, the digital broadcasting signal received to a mobile and a fixed digital broadcasting receiver enables a user to watch various types of moving images.
<i2> A T-DMB receiver currently serviced within the country can provide services compositively for a PMP function of storing moving images of MPEG-4 series, a MP3 function, an electronic dictionary function for students, a digital camera function, etc.
<i3> According to currently developed technologies or commercialized technologies, it has not been realized that a reception module receiving digital multimedia broadcasting is directly connected to a specific site for education or to the internet for providing various types of moving image contents.
<i4> In addition, it has not been realized that data such as moving images, music, pictures and various form data are transmitted/received by performing wireless communication with other terminals located in a local area using the WPAN local area wireless communication.
<}S>
[Disclosure]
[Technical Problem]
<i6> Accordingly, an object of the present invention is to provide a complex type DMB receiver capable of local area wireless transmission/reception and being connected to an internet, that can perform a multimedia function and a function of small-sized computer by TCP/IP chipset integrated or separated from a main processor, and be connected to an external terminal located in a local area through a WPAN local area wireless communication by being directly connected to the internet or using a WPAN transmission/reception module, thereby storing or displaying various types of moving images.
<17>
[Technical Solution]
<i8> According to an aspect of the present invention, there is provided a complex type DMB receiver capable of local area wireless transmission/reception and being connected to an internet, which includes an antenna receiving a DMB signal, a front end unit selecting a specific channel for the DMB signal inputted from the antenna and performing filtering on the signal, a decoder performing channel decoding for the DMB signal inputted from the front end unit and then performing audio decoding and data decoding, a main processor outputting a decoding data inputted from the decoder, or encoding the decoding data into MPEG-4 format and storing the data in a memory or storing an input data in the memory or decoding and outputting the input data, a display interface performing interfacing so as to output the decoding data outputted from the main processor to an LCD, a TCP/IP processor enabling the main processor to perform data communication through the internet, a communication interface performing interfacing so as to connect the TCP/IP processor to the internet, and a WPAN transmission/reception module enabling the main processor to perform local area wireless transmission/reception with a terminal in a local area through the WPAN.
<i()> The main processor and the TCP/IP processor respectively formed of separate chipsets may transmit/receive data with each other.
<20> The chipsets forming the TCP/IP processor may be formed to be attached and detached, and the chipset forming the TCP/IP processor may receive power source from an external power supply.
<2i> The TCP/IP processor may be integrated into the main processor so as to perform a TCP/IP function.
<22> The DMB receiver may further include an USB port or an IEEE-1394 port performing data communication with an external terminal connected to the internet .
<23> The Windows OS program is installed in the main processor, thereby allowing the main processor to process one function or more than two functions simultaneously of DMB receiving processing, navigation function processing, PMP function processing, MP3 function processing, digital camera function processing, electronic dictionary function processing, internet connection processing and WPAN transmission/reception processing.
<24> The input data decoded by the main processor may a data stored in the memory or an internet communication data inputted through the TCP/IP processor or a local area wireless communication data inputted through the WPAN transmission/reception module.
<25> The memory may be formed of an internal memory and an external memory. IQ addition, the internal memory may be a flash memory or a hard disk and the external memory may be any one of a SD card, a CF card, a USB memory and an external type hard disk.
<26> The main processor may store a WPAN local area communication data inputted from the WPAN transmission/reception module in the memory, or displays the data on an LCD through the display interface.
<27> The WPAN local area wireless data stored in the memory may be displayed on the LCD through the display interface by means of the main processor, or transmitted to the external terminal through the WPAN transmission/reception module, or transferred to the internet through the TCP/IP processor.
<28>
[Advantageous Effects]
<29> The complex type DMB (digital multimedia broadcasting) receiver capable of local area wireless transmission/reception and being connected to the internet of the present invention produces following effects.
<3o> First, the complex type DMB receiver can store or display various types of moving images by being directly connected to the internet because it performs a multimedia function and a function of small-sized computer by TCP/IP chipset integrated or separated from the main processor.
<3i> Second, the TCP/IP chipset enabling internet communication can be kept separately or used as an accessory according to case of use because the TCP/IP chipset can be attached and detached in some cases.
<32> Third, the DMB receiver includes WPAN transmission/reception module, and thus can receive, store or display various types of moving images by being connected to the external terminal located in a local area using WPAN local area wireless communication.
<33>
[Description of Drawings] <34> The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:
<35> FIG. 1 is a conceptual diagram of general digital broadcasting; and <36> FIG. 2 is a block diagram of a complex type DMB receiver capable of local area wireless transmission/reception and being connected to the internet according to the present invention.
<37>
[Best Mode]
<38> FIG. 2 is a block diagram of a complex type DMB receiver capable of local area wireless transmission/reception and being connected to the internet according to the present invention.
<39> Referring to FIG. 2, the DMB receiver includes an antenna 110 receiving a digital broadcasting signal from a satellite or the ground, a front end unit 120 selecting a channel for the broadcasting signal and performing filtering on the signal, a decoder 130 decoding the filtered broadcasting signal, a main processor 140 outputting a decoded data inputted from the decoder 130, or encoding the data into MPEG-4 format and storing the data in a memory or storing an input data in the memory or decoding and outputting the input data, a display interface 170 performing interfacing so as to output the decoded data outputted from the main processor 140 to an LCD, a TCP/IP processor 150 enabling the main processor 140 to perform data communication through the internet, a communication interface 160 performing interfacing so as to connect the TCP/IP processor 150 to the internet, and a WPAN transmission/reception module 200 enabling the main processor 140 to perform local area wireless communication with a terminal in a local area through the WPAN.
<40> lMode for Invention]
<4i> Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing. The aspects and features of the present invention and methods for achieving the aspects and features will be apparent by referring to the embodiments to be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed hereinafter, but can be implemented in diverse forms. The matters defined in the description, such as the detailed construction and elements, are nothing but specific details provided to assist those of ordinary skill in the art in a comprehensive understanding of the invention, and the present invention is only defined within the scope of the appended claims. In the entire description of the present invention, the same drawing reference numerals are used for the same elements across various figures.
<42> FIG. 2 is a block diagram of a complex type DMB receiver capable of local area wireless transmission/reception and connection to the internet according to the present invention.
<43> Referring to FIG. 2, the DMB receiver includes an antenna 110 receiving a digital broadcasting signal from a satellite or the ground, a front end unit 120 selecting a channel for the broadcasting signal and performing filtering on the signal, a decoder 130 decoding the filtered broadcasting signal, a main processor 140 outputting a decoding data inputted from the decoder 130 or encoding the data into MPEG-4 format and storing the data in a memory, or storing an input data in the memory or decoding and outputting the O
input data, a display interface 170 performing interfacing so as to output the decoded data outputted from the main processor 140 to an LCD, a TCP/IP processor 150 enabling the main processor L40 to perform data communication through the internet, a communication interface 160 performing interfacing so as to connect the TCP/IP processor 150 to the internet, and a WPAN transmission/reception module 200 enabling the main processor 140 to perform local area wireless communication with a terminal in a local area through the WPAN.
<44> The antenna 110 receives a predetermined digital broadcasting signal transmitted from a satellite or a base station and a carrier signal including general data information, and then transmits the signals to the front end unit 120 described below. In addition, in a case of T-DMB, the antenna 110 receives a predetermined digital broadcasting signal transmitted from a terrestrial wave transmitter and transmits the signal to the front end unit L20 described below.
<45> The front end unit 120 receives the digital broadcasting signal received from the antenna 110 and selects a channel in a specific frequency band according to a control signal of the main processor 140 described below. In addition, the front end unit 120 performs filtering on the digital broadcasting signal transmitted through the selected channel, and outputs only signal within a base band and then transmits the signal to the decoder 130 described below.
<46> The decoder 130 receives the digital broadcasting signal of the base band transmitted from the front end unit 120 and performs demodulation into a desired digital broadcasting signal according to a control signal of the main processor 140, and divides the digital signal into picture data (audio/video data) and various types of additional data.
<47> The divided audio/video data and various types of additional data are decoded by a predetermined decoder forming the decoder 130 and transmitted to the main processor 140. The audio data corresponding to the additional data is outputted through a speaker 180. <48> The main processor 140 receives the digital picture data decoded by the decoder 130 and outputs decoding data and displays the data on an LCD (not shown) through the display interface 170, thereby enabling a user to watch digital broadcasting in real time, or to encode the digital picture data decoded in MPEG-4 format and output the data to a memory 190 described below.
<49> In addition, the main processor 140 decodes and outputs an input data related to moving images stored in the memory 190 or an input data related to internet communication inputted through the TCP/IP processor 150 described below. As such, the decoded data related to the outputted moving images is displayed on the LCD (not shown) through the display interface 170, and the audio data is outputted through the speaker 180.
<50> In other words, the data decoded and inputted by the main processor 140 is a data stored in the memory 190 or an internet communication data inputted through the TCP/IP processor 150. The decoded data is outputted to the LCD through the display interface 170.
<5i> The main processor 140 enables local area wireless communication with other terminals located in a local area through the WPAN transmission/reception module 200 described below. Accordingly, the main processor 140 stores the local area wireless communication data inputted through the WPAN transmission/reception module 200 in the memory 190 or displays the data on the LCD (not shown) through the display interface 170.
<52> Referring to FIG. 2, the memory 190 is formed of an internal memory 191 embedded in the DMB receiver and an external memory 193 capable of being inserted from the outside. A flash memory or a hard disk can be used as the internal memory 191, and one, or two or more of a SD card, a CF card, a USB memory card and an external hard disk may be used as the external memory 193.
<53> The MPEG-4 is a picture compression technology based on multimedia communication, and means a standard for data compression and restoration technology developed for sending moving images at a low transmission rate. In other words, the MPEG-4 is widely used in fields of multimedia communication, video conference system, broadcasting, movie, education, entertainment, etc., in an internet wire network and a wireless network such as a mobile communication network by implementing moving images at a low transmission rate of 64 and 19.2 Kbps per second.
<54> The memory 190 stores decoded moving image data, that is, the digital broadcasting signal inputted from the decoder 130, moving image data related to internet communication inputted through the TCP/IP processor 150 and local area wireless communication data inputted through the WPAN transmission/reception module 200, and outputs the stored moving image data to the main processor 140, according to the control signal of the main processor 140.
<55> The memory 190 can store moving image data downloaded from an external terminal (not shown), in addition to moving image data, that is, the digital broadcasting signal transmitted from the main processor 140. In other words, the DMB receiver can include an external input unit (not shown) capable of being connected to external terminals such as a PC or a mobile phone, and thus download various types of moving image data stored in the PC or the mobile phone and store the data in the memory 190.
<S6> Accordingly, it is desirable that the external terminal is a terminal connectable to the internet, and the DMB receiver includes a USB port or an JEEE-1394 port corresponding to the external data input unit, so as to perform data communication with the connection to the external terminal. o7> The display interface 170 performs an interface function so as to display moving image data outputted through the main processor 140 on an LCD (not shown). In other words, the display interface 170 performs interfacing so as to display a digital broadcasting signal outputted from the main processor 140 via the decoder 130, or moving image data decoded and outputted by the main processor 140 after storage in the memory 190, or internet communication data related to moving images inputted through the TCP/IP processor 150 and then decoded and outputted by the main processor 140, or various types of data that is inputted through the WPAN transmission/reception module 200 and decoded and then outputted by the main processor 140, on the LCD.
<58> The TCP/IP processor 150 enables the main processor 140 to perform data communication through the internet. In addition, the TCP/IP processor 150 can be connected to the internet by interfacing of the communication interface 160.
<59> The TCP/IP processor 150 can be formed of separate chipset different from the chipset forming the main processor 140. The TCP/IP processor 150 can be integrated into the main processor 140, and thus the chipset forming the main processor 140 can perform a function. In this case, the main processor 140 performs the function of the TCP/IP processing.
<«>> When the main processor 140 and the TCP/IP processor 150 are respectively formed of different chipsets, it is possible to increase the data processing capacity of the main processor 140 and improve a multimedia funct ion.
<6i> When the main processor 140 and the TCP/IP processor 150 are respectively formed of the different chipsets, the chipset forming the TCP/IP processor 150 can be attached/detached to/from the DMB receiver directly connected to the internet. In other words, when the DMB receiver is directly connected to the internet, the chipset forming the TCP/IP processor 150 can be attached to the DMB receiver and detached in other cases. In this time, it is desirable that the chipset forming the TCP/IP processor 150 receives power source from an external power supply instead of an internal battery.
<62> In addition, the complex type DMB receiver includes the WPAN transmission/reception module 200 so as to perform local area wireless communication with other terminals located in a local area through WPAN local area wireless communication. Accordingly, the main processor 140 can transmit/receive local area wireless communication data to/from other terminals located in a local area through the WPAN transmission/reception module 200.
<63> According to the construction as described above, the complex type DMB receiver can be directly connected to the internet and thus a user can access to a specific site for education by connecting the DMB receiver to the internet, and select moving images for education or various types of moving image contents and then store the images or contents in the DMB receiver or watch them through an LCD.
<64> The complex type DMB receiver can receive local area wireless communication data such as moving images, music, etc., from other terminals located in a local area through the WPAN transmission/reception module 200, and then store the data in the memory 190 or display the data on an LCD. In addition, the DMB receiver can transmit various types of data stored in the memory 190 to other terminals located in a local area through the WPAN transmission/reception module 200.
<.65> The functions of the main processor 140 will be explained in more detail below.
<66> The main processor 140 controls operation of respective components generally and the digital broadcasting signal received by the DMB receiver or moving image data downloaded from an external terminal so as to be displayed on the LCD of the DMB receiver. In addition, the main processor 140 controls internet communication data related to the moving images inputted through the TCP/IP processor 150 so as to be stored in the memory 190 or displayed on the LCD by being connected to the internet.
<67> In addition, the main processor 140 controls WPAN local area wireless data inputted from the WPAN transmission/reception module 200 so as to be stored in the memory 190 or displayed on the LCD through the display interface 170.
<68> The main processor 140 controls WPAN local area wireless data stored in the memory 190 so as to be displayed on the LCD through the display interface 170, or transmitted to a terminal located in a local area through the WPAN transmission/reception module 200, or transferred to the internet through the TCP/IP processor 150.
<69> In other words, the Windows OS is installed in the main processor 140, thereby allowing the main processor 140 to control so as to process one function or more than two functions simultaneously of DMB receiving processing (processed by a DMB receiving processor forming the main processor), navigation function processing (processed by a navigation processor forming the main processor), PMP function processing (processed by a PMP function processor forming the main processor), MP3 function processing (processed by an MP3 processor forming the main processor), digital camera function processing (processed by a digital camera processor forming the main processor), electronic dictionary function processing (processed by an electronic dictionary processor forming the main processor), internet connection processing (processed by an internet communication processor forming the main processor) and WPAN transmission/reception processing (processed by a WPAN transmission/reception processor forming the main processor). The control signal of the main processor 140 can be generated by various types of keypads (not shown) provided on the DMB receiver.
<70>
[Industrial Applicability]
<7i> The present invention relates to the complex type digital multimedia broadcasting (DMB) receiver capable of local area wireless communication and being connected to the internet, that can perform a multimedia function and a function of small computer by TCP/IP chipset integrated or separated from the main processor. Accordingly, the present invention is very useful to a digital broadcasting industry.
<72>

Claims

[CLAIMS] [Claim 1] <74> A complex type DMB (digital multimedia broadcasting) receiver capable of local area wireless transmission/reception and being connected to an internet, comprising:
<75> an antenna receiving DMB signals! <76> a front end unit selecting a specific channel for the DMB signals inputted from the antenna and performing filtering on the signals; <77> a decoder decoding channel for the DMB signals inputted from the front end unit and then decoding audio and data! <78> a main processor outputting the decoded data inputted from the decoder, or, encoding the decoded data into MPEG-4 format and storing the data in a memory or storing the inputted data in the memory, or decoding and outputting the inputted data; <79> a display interface performing interface so as to output the decoded data outputted from the main processor to an LCD; <80> a TCP/IP processor enabling the main processor to perform data communication through the internet; <8i> a communication interface performing interface so as to connect the
TCP/IP processor to the internet; and <82> a WPAN (wireless personal area network) transmission/reception module enabling the main processor to perform local area wireless communication with a local area terminal through a WPAN.
[Claim 2] <83> The complex type DMB receiver of claim 1, wherein the main processor and the TCP/IP processor are respectively formed of separate chipsets and transmit/receive data with each other.
[Claim 3] <84> The complex type DMB receiver of claim 2, wherein the chipset consisted of TCP/IP processor is formed to be attachable and detachable.
[Claim 4] <85> The complex type DMB receiver of claim 3, wherein the chipset consisted of the TCP/IP processor is supplied power source from an external power supply.
[Claim 5]
<86> The complex type DMB receiver of claim 1, wherein the TCP/IP processor is integrated into the main processor so as to perform a TCP/IP function.
[Claim 6]
<87> The complex type DMB receiver of claim 1, further comprising a USB port or an IEEE-1394 port for performing data communication with an external terminal connected to the internet.
[Claim 7]
<88> The complex type DMB receiver of any one of claims 1 to 6, wherein the main processor which a window OS is installed, thereby allowing the main processor to process one function or more than two functions simultaneously of DMB receiving processing, navigation function processing, MP3 function processing, digital camera function processing, electronic dictionary junction processing, internet connection processing and WPAN local area wireless communication processing.
[Claim 8]
<89> The complex type DMB receiver of claim 1, wherein the inputted data decoded by the main processor is data stored in the memory or internet communication data inputted through the TCP/IP processor or local area wireless communication data inputted through the WPAN transmission/reception module.
[Claim 9]
<90> The complex type DMB receiver of claim 8, wherein the memory is formed of an internal memory and an external memory.
[Claim 10]
<9i> The complex type DMB receiver of claim 9, wherein the internal memory is a flash memory or a hard disk. [Claim 11] <92> The complex type DMB receiver of claim 9, wherein the external memory is any one of a SD card, a CF card, a USB memory card and an external type hard disk. [Claim 12]
<93> The complex type DMB receiver of claim 1, wherein the main processor stores WPAN local area wireless data inputted from the WPAN transmission/reception module in the memory, or displays the data on an LCD through the display interface. [Claim 13]
<94> The complex type DMB receiver of claim 12, wherein the WPAN local area wireless data stored in the memory is displayed on the LCD through the display interface by the main processor, or transmitted to an external terminal through the WPAN transmission/reception module, or transferred to the internet through the TCP/IP processor.
PCT/KR2007/005571 2006-11-07 2007-11-06 Complex type dmb receiver WO2008056925A1 (en)

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KR1020060109330A KR100847855B1 (en) 2006-11-07 2006-11-07 Hybrid DM receiver with short range wireless transmission and internet connection
KR10-2006-0109330 2006-11-07

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