CN101588461A - Commercial display ternimal integrated with CMMB receiving module - Google Patents
Commercial display ternimal integrated with CMMB receiving module Download PDFInfo
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- CN101588461A CN101588461A CNA2008100674422A CN200810067442A CN101588461A CN 101588461 A CN101588461 A CN 101588461A CN A2008100674422 A CNA2008100674422 A CN A2008100674422A CN 200810067442 A CN200810067442 A CN 200810067442A CN 101588461 A CN101588461 A CN 101588461A
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- cmmb
- display terminal
- demodulator
- commercial display
- receiver module
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Abstract
The invention relates to a commercial display ternimal integrated with a CMMB receiving module, comprising a display module (101) and especially a CMMB receiving module (200), wherein the receiving module (200) comprises an application processor (202) containing a built-in decoding chip, a CMMB demodulator (203), a CMMB tuner (204) and an antenna (205). The antenna (205) receives analog signals modulated on a radio-frequency carrier; the tuner (204) outputs zero intermediate frequency I/Q signals to the CMMB demodulator (203) for demodulation; after filtering the demodulated signals, the application processor (202) decodes the signals by the decoding chip; and at last, the video signals are outputted to the display terminal to display images. By using the method, a user can receive televison signals on the display terminal in real time, and traders or operators can conveniently broadcast the advertisements in real time by renting time periods or television channels.
Description
Technical field
The present invention relates to the parts of television system, particularly relate to the video signal circuit, relate in particular to a kind of integrated commercial display terminal of CMMB receiver module.
Background technology
Along with the quickening of social informatization process with deeply, the speed that information is transmitted is more and more faster, the also more and more polynary change of transfer mode simultaneously, the fieriness of commercial competition makes that also the input of advertisement is ubiquitous, each big little company falls over each other to use the propaganda of various medium channels reinforcements self product, thereby strive for the more market opportunity, the display terminal that is used for products propaganda is grabbed accurate opportunity and is seized ground such as each big or small business premises, apartment, hotel, sales field, for each merchant product provides good promotional service.
CMMB, promptly " China Mobile Multimedia Broadcasting " is the abbreviation of " China Mobile multimedia broadcasting system " industry standard, the sector standard is applicable to that 30MHz is to the interior broadcasting service frequency of 3000MHz frequency range, via satellite and/or the broadcast system of multi-media signals such as terrestrial wireless emission TV, broadcasting, data message, can realize whole nation roaming.
Following by the CMMB network, the user can also see ordinary tv programme, special TV programme and obtain value-added informations such as stock, meteorology, traffic by the mobile phone screen, simultaneously, the CMMB network can be supported the functions such as control and management, user's whole nation roaming, multimode authorization control way to manage, user management and user's customer service support of mass users, we can say, CMMB from satisfying the angle of operation demand, has realized powerful technical support.
There is more than 300 city, the whole nation to open the CMMB radio and television at present, for the transmission of advertisement, TV, audio/video on-demand and data provides another mode cheaply, whereby, the display terminal that is shown as representative with the business premises advertisement utilizes CMMB Web TV channel or digital channel to transmit businessman comparatively easily such as useful data or information such as advertisements.
Its content of display terminal that is used for commerce services in the prior art is to change or transmit by wired mode by artificial mostly, the advertisement operator is regularly sent someone to be installed in the server that each building, hotel, sales field, hospital etc. locate and is removed more new data, and each display terminal utilizes the data of cable network reading and saving on server to play again; The part operator also begins to attempt connecting display terminal and server with wireless mode, but still need more manpower to go to each building, hotel, sales field, hospital etc. to locate to carry out Data Update with manual type, bring higher human cost, also influence the ageing of Data Update.
Commercial display terminal recited above has the following disadvantages:
1, display terminal content be to change or transmit mostly by wired mode by artificial, need special messenger's new data more to the data server, bring higher human cost;
2, the wireless connections mode of display terminal and data server in the prior art still requires on the data server more new data, influences the ageing of Data Update.
Summary of the invention
The technical problem to be solved in the present invention is to avoid above-mentioned the deficiencies in the prior art part and proposes a kind of integrated commercial display terminal of CMMB receiver module.
The present invention solve the technical problem can be by realizing by the following technical solutions: a kind of integrated commercial display terminal of CMMB receiver module, comprise display module, especially, also comprise the CMMB receiver module that is embedded in the described commercial display terminal, comprise the application processor, CMMB demodulator, CMMB tuner and the antenna that contain built-in decoding chip in this receiver module again, described antenna receives the analog signal that is modulated on the high frequency carrier, this high frequency carrier of having modulated analog signal is sent to the CMMB tuner handles; Make analog/digital conversion by this tuner output zero intermediate frequency i/q signal to the CMMB demodulator, then remake OFDM demodulation, LDPC parity check sum RS error correction, obtain the TS data flow then; Described application processor (202) carries out the signal of the TS data flow that obtains after the demodulation to decode with decoding chip again after PID filters; The R that decoding is obtained, G, B vision signal export the display module show image of commercial display terminal at last.
Described high frequency carrier comprises the carrier signal that is operated in superfrequency UHF, very high frequency(VHF) VHF, hyperfrequency SHF, L frequency range and S frequency range, described its wavelength band of VHF frequency range is 174MHz～245MHz, its wavelength band of uhf band is 470MHz～862MHz, its wavelength band of L frequency range is 1450MHz～1492MHz, and its wavelength band of S frequency range is 2635MHz～3660MHz.
Described CMMB demodulator can be replaced with the demodulator that can carry out broadcast industry GY/T220.1-2006, DVB-H, DVB-T, T-DMB, DMB-TH, TMMB or DMMB-TH standard, thereby makes described commercial display terminal possess the ability of the radio broadcasting signal that receives above-mentioned standard.
Described CMMB demodulator is the CMMB channel receiver chip of 8MHz or 2MHz bandwidth mode.
Between described CMMB demodulator and the CMMB tuner, between application processor and the no CMMB demodulator, all be connected between application processor and the commercial display terminal display module by control bus.
Carry out transfer of data by data/address bus between described application processor and the commercial display terminal display module; Carry out transfer of data by the TS data/address bus between CMMB demodulator and the application processor; Carry out transfer of data by the i/q signal data/address bus between CMMB tuner and the CMMB demodulator.
Described CMMB demodulator is connected with the SPI flash media by the SPI serial peripheral interface, and described SPI flash media is as the memory space of program.
Described CMMB demodulator can carry out descrambling and decryption processing to the radio broadcasting signal after scrambling and the encryption, guarantees the safety of data.
Described decoding chip comprises MPEG-2/MPEG-4 decoding chip and/or AVS decoding chip.
Described CMMB demodulator and CMMB tuner are integrated into same chip piece together.
Described CMMB demodulator, CMMB tuner and application processor are integrated into same chip piece together.
Compare with prior art, the beneficial effect of the technique scheme that the present invention adopts is:
1, can be on the display terminal that is installed on each business premises, apartment, hotel, hospital, sales field received television signal in real time, also made things convenient for businessman or operator to broadcast its advertising message in real time by renting period or television channel;
2, can be sent to useful data on the server or display terminal of each sales field by wireless CMMB network by renting the CMMB data channel;
3, can use the CMMB technology mode of multi-user's empowerment management (adding the mode that CA conditions such as descrambling, encryption and decryption receive authentication as channel) is guaranteed that the user transmits the fail safe of data, information, avoid the terminal of other businessmans or operator also can receive the own interior perhaps data of playing of transmission.
Description of drawings
Fig. 1 is the logic diagram of circuit of commercial display terminal of the present invention's integrated CMMB receiver module;
Fig. 2 is the present invention's CMMB demodulator and a CMMB tuner winding diagram.
Embodiment
Be described in further detail below in conjunction with the most preferred embodiment shown in each accompanying drawing.
The present invention's the integrated commercial display terminal of CMMB receiver module, as shown in Figure 1, comprise display module 101, especially, also comprise the CMMB receiver module 200 that is embedded in the described commercial display terminal, comprise application processor 202, CMMB demodulator 203, CMMB tuner 204 and the antenna 205 of built-in decoding chip in this receiver module 200 again.
Institute is shown in Figure 1, and described antenna 205 receives the analog signal that is modulated on the high frequency carrier, this high frequency carrier of having modulated analog signal is sent to CMMB tuner 204 handles; Make analog/digital conversion by these tuner 204 output zero intermediate frequency i/q signals to CMMB demodulator 203, then remake OFDM demodulation, LDPC parity check sum RS error correction, obtain the TS data flow then; Described application processor 202 carries out the signal of the TS data flow that obtains after the demodulation to decode with decoding chip again after PID filters; The R that decoding is obtained, G, B vision signal export display module 101 show images of commercial display terminal at last.
Described high frequency carrier comprises the carrier signal that is operated in superfrequency UHF, very high frequency(VHF) VHF and hyperfrequency SHF frequency range.
Described CMMB demodulator 203 can be replaced with the demodulator that can carry out broadcast industry GY/T220.1-2006, DVB-H, DVB-T, T-DMB, DMB-TH, TMMB or DMMB-TH standard, thereby make described commercial display terminal possess the ability of the radio broadcasting signal that receives above-mentioned standard, when commercial display terminal need receive radio broadcasting signal based on above-mentioned standard, CMMB demodulator 203 need be replaced with and possess the chip that this radio broadcasting signal is handled the reason ability accordingly.
The CMMB channel receiver chip that described CMMB demodulator 203 is 8MHz or 2MHz bandwidth mode.
Between described CMMB demodulator 203 and the CMMB tuner 204, between application processor 202 and the no CMMB demodulator 203, all be connected between application processor 202 and the commercial display terminal display module 101 by control bus.
Carry out transfer of data by data/address bus between described application processor 202 and the commercial display terminal display module 101; Carry out transfer of data by the TS data/address bus between CMMB demodulator 203 and the application processor 202; Carry out transfer of data by the i/q signal data/address bus between CMMB tuner 204 and the CMMB demodulator 203.
Described CMMB demodulator 203 is connected with SPI flash media 301 by the SPI serial peripheral interface, and described SPI flash media 301 is as the memory space of program.
Described CMMB demodulator 203 can carry out descrambling and decryption processing to the radio broadcasting signal after scrambling and the encryption, guarantees the safety of data.
Described decoding chip comprises MPEG-2/MPEG-4 decoding chip and/or AVS decoding chip.
Described CMMB demodulator 203 and CMMB tuner 204 are integrated into same chip piece together; Also described CMMB demodulator 203, CMMB tuner 204 and application processor 202 can be integrated into same chip piece together.
By changing CMMB demodulator 203 and the CMMB tuner 204 in the described CMMB receiver module 200; can allow the present invention possess the radio broadcasting signal that receives non-CMMB standard; these radio broadcasting signals comprise the broadcast singal of GY/T220.1-2006, DVB-H, DVB-T, T-DMB, DMB-TH, TMMB or DMMB-TH standard; all all are conspicuous by the new device that the mode of changing CMMB demodulator 203 and CMMB tuner 204 obtains, and should be included within the scope of protection of the invention.
Claims (11)
1, a kind of integrated commercial display terminal of CMMB receiver module comprises display module (101), it is characterized in that:
Also comprise the CMMB receiver module (200) that is embedded in the described commercial display terminal, comprise the application processor (202), CMMB demodulator (203), CMMB tuner (204) and the antenna (205) that contain built-in decoding chip in this receiver module (200) again.
Described antenna (205) receives the analog signal that is modulated on the high frequency carrier, this high frequency carrier of having modulated analog signal is sent to CMMB tuner (204) handles; Make analog/digital conversion by this tuner (204) output zero intermediate frequency i/q signal to CMMB demodulator (203), then remake OFDM demodulation, LDPC parity check sum RS error correction, obtain the TS data flow then; Described application processor (202) carries out the signal of the TS data flow that obtains after the demodulation to decode with decoding chip again after PID filters; The R that decoding is obtained, G, B vision signal export display module (101) show image of commercial display terminal at last.
2, a kind of integrated commercial display terminal of CMMB receiver module as claimed in claim 1 is characterized in that:
Described high frequency carrier comprises the carrier signal that is operated in superfrequency UHF, very high frequency(VHF) VHF and hyperfrequency SHF frequency range.
3, a kind of integrated commercial display terminal of CMMB receiver module as claimed in claim 1 is characterized in that:
Described CMMB demodulator (203) can be replaced by the demodulator that can carry out broadcast industry GY/T220.1-2006, DVB-H, DVB-T, T-DMB, DMB-TH, TMMB or DMMB-TH standard, thereby makes described commercial display terminal possess the ability of the radio broadcasting signal that receives above-mentioned standard.
4, a kind of integrated commercial display terminal of CMMB receiver module as claimed in claim 1 is characterized in that:
Described CMMB demodulator (203) is the CMMB channel receiver chip of 8MHz or 2MHz bandwidth mode.
5, a kind of integrated commercial display terminal of CMMB receiver module as claimed in claim 1 is characterized in that:
Between described CMMB demodulator (203) and the CMMB tuner (204), between application processor (202) and the no CMMB demodulator (203), all be connected between application processor (202) and the commercial display terminal display module (101) by control bus.
6, a kind of integrated commercial display terminal of CMMB receiver module as claimed in claim 1 is characterized in that:
Carry out transfer of data by data/address bus between described application processor (202) and the commercial display terminal display module (101); Carry out transfer of data by the TS data/address bus between CMMB demodulator (203) and the application processor (202); Carry out transfer of data by the i/q signal data/address bus between CMMB tuner (204) and the CMMB demodulator (203).
7, a kind of integrated commercial display terminal of CMMB receiver module as claimed in claim 1 is characterized in that:
Described CMMB demodulator (203) is connected with SPI flash media (301) by the SPI serial peripheral interface, and described SPI flash media (301) is used to provide the memory space of program.
8, a kind of integrated commercial display terminal of CMMB receiver module as claimed in claim 1 is characterized in that:
Described CMMB demodulator (203) can carry out descrambling and decryption processing to the radio broadcasting signal after scrambling and the encryption, guarantees the safety of data.
9, a kind of integrated commercial display terminal of CMMB receiver module as claimed in claim 1 is characterized in that:
Described decoding chip comprises MPEG-2/MPEG-4 decoding chip and/or AVS decoding chip.
10, a kind of integrated commercial display terminal of CMMB receiver module as claimed in claim 1 is characterized in that:
Described CMMB demodulator (203) and CMMB tuner (204) are integrated in jointly with in the chip piece.
11, a kind of integrated commercial display terminal of CMMB receiver module as claimed in claim 1 is characterized in that:
Described CMMB demodulator (203), CMMB tuner (204) and application processor (202) are integrated in jointly with in the chip piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100674422A CN101588461A (en) | 2008-05-20 | 2008-05-20 | Commercial display ternimal integrated with CMMB receiving module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100674422A CN101588461A (en) | 2008-05-20 | 2008-05-20 | Commercial display ternimal integrated with CMMB receiving module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101588461A true CN101588461A (en) | 2009-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100674422A Pending CN101588461A (en) | 2008-05-20 | 2008-05-20 | Commercial display ternimal integrated with CMMB receiving module |
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| CN (1) | CN101588461A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841640A (en) * | 2010-04-19 | 2010-09-22 | 深圳市九洲电器有限公司 | Data stream processing programmable logic chip and set-top box |
| CN101873142A (en) * | 2010-06-04 | 2010-10-27 | 杭州国芯科技股份有限公司 | CMMB receiver decoding method |
| CN102991507A (en) * | 2012-11-27 | 2013-03-27 | 杨伟 | Vehicle assistant driving method |
| CN102991419A (en) * | 2012-11-27 | 2013-03-27 | 杨伟 | Vehicle assistant driving device |
| CN103281587A (en) * | 2013-05-15 | 2013-09-04 | 无锡北斗星通信息科技有限公司 | DVB-C (digital video broadcasting-cable) receiver using AVS (audio video standard) decoding |
| CN106850043A (en) * | 2017-01-18 | 2017-06-13 | 成都科脉通信技术有限公司 | Arrowband satellite communication system based on ultra short wave communication |
-
2008
- 2008-05-20 CN CNA2008100674422A patent/CN101588461A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841640A (en) * | 2010-04-19 | 2010-09-22 | 深圳市九洲电器有限公司 | Data stream processing programmable logic chip and set-top box |
| CN101841640B (en) * | 2010-04-19 | 2012-01-11 | 深圳市九洲电器有限公司 | Data stream processing programmable logic chip and set-top box |
| CN101873142A (en) * | 2010-06-04 | 2010-10-27 | 杭州国芯科技股份有限公司 | CMMB receiver decoding method |
| CN101873142B (en) * | 2010-06-04 | 2012-11-28 | 杭州国芯科技股份有限公司 | CMMB receiver decoding method |
| CN102991507A (en) * | 2012-11-27 | 2013-03-27 | 杨伟 | Vehicle assistant driving method |
| CN102991419A (en) * | 2012-11-27 | 2013-03-27 | 杨伟 | Vehicle assistant driving device |
| CN102991419B (en) * | 2012-11-27 | 2015-04-22 | 余姚德诚科技咨询有限公司 | Vehicle assistant driving device |
| CN103281587A (en) * | 2013-05-15 | 2013-09-04 | 无锡北斗星通信息科技有限公司 | DVB-C (digital video broadcasting-cable) receiver using AVS (audio video standard) decoding |
| CN103281587B (en) * | 2013-05-15 | 2015-12-23 | 海安欣凯富机械科技有限公司 | Use the DVB-C receiver of AVS decoding |
| CN105208432A (en) * | 2013-05-15 | 2015-12-30 | 孔涛 | DVB-C receiver with AVS decoding |
| CN105208432B (en) * | 2013-05-15 | 2016-09-28 | 江苏大金激光科技有限公司 | Use the DVB-C receiver of AVS decoding |
| CN106850043A (en) * | 2017-01-18 | 2017-06-13 | 成都科脉通信技术有限公司 | Arrowband satellite communication system based on ultra short wave communication |
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Application publication date: 20091125 |