CN103402064A - Digital satellite television receiving device - Google Patents
Digital satellite television receiving device Download PDFInfo
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- CN103402064A CN103402064A CN2013103506701A CN201310350670A CN103402064A CN 103402064 A CN103402064 A CN 103402064A CN 2013103506701 A CN2013103506701 A CN 2013103506701A CN 201310350670 A CN201310350670 A CN 201310350670A CN 103402064 A CN103402064 A CN 103402064A
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Abstract
The invention relates to a digital satellite television receiving device. The digital satellite television receiving device is characterized by comprising a digital satellite television signal receiving module connected to a tuner, a central processor and an audio-video decoder, wherein the central processor is connected to the audio-video decoder, a program data sending module and an interface module; the program data sending module is connected to the audio-video decoder and the interface module. By adopting the receiving device provided by the invention, one receiving device enables various terminals to play, and different receiving terminals can play different television programs.
Description
Technical field
The present invention relates to the satellite television field, especially a kind of digital satellite television receiving system.
Background technology
Digital satellite television, with respect to the case of conventional analog broadcast TV, has picture quality high, and channel utilance advantages of higher becomes the main flow of advance TV system just day by day.Utilize satellite technology can solve the signal covering problem in remote areas such as comprising desert, island, mountain area, so satellite television have application more widely on the mobile devices such as car, ship.Nowadays, along with universalness, the variation of the electronic equipment that can carry out the audio frequency and video broadcast, the handheld devices such as mobile phone, flat board become the display terminal of main flow just day by day.but there is a shortcoming simultaneously in digital satellite system at present, namely receiving system can only be on a terminal broadcast program, and can not play simultaneously different programs, therefore can not well utilize the diversity of program source, more well hobby and the selection of balance different people to program, if can utilize the modes such as wireless sharing at mobile phone, a plurality of display terminals such as flat board carry out the broadcast of TV programme simultaneously, just can overcome this deficiency, better utilize the rich of program source, hobby and the selection of balance different people to program, in desert, island, the remote area such as mountain area has larger using value.The present invention can solve this problem, make a receiving system to play for multiple terminal, and different receiving terminals can be play different TV programme.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of digital satellite television receiving system.
The present invention adopts following scheme to realize: a kind of digital satellite television receiving system, it is characterized in that: comprise a digital satellite television signal receiving module, described digital satellite television signal receiving module connects a tuner, a central processing unit and an audio/video decoder, described central processing unit connects described audio/video decoder, program data sending module and an interface module, and described program data sending module connects described audio/video decoder and described interface module.
in an embodiment of the present invention, described digital satellite television signal receiving module comprises a power splitter, described power splitter will be divided into from the first intermediate-freuqncy signal of tuner behind the n road to be sent into n road analog tuner and carries out down-converted with output zero intermediate frequency analog signal, the zero intermediate frequency analog signal that n road analog to digital converter will be inputted is converted into digital signal, send into the demodulation of n railway digital and channel decoder and carry out demodulating and decoding, the transmission stream of n road demultiplexer after to demodulating and decoding carries out the demultiplexing process, then sending into described audio/video decoder decodes, also comprise that a tuning control is connected described n road analog regulator with the tuner control module, be used for controlling the collaborative work of multiple signals.
In an embodiment of the present invention, described digital demodulation and channel decoder carry out demodulating and decoding and are specially, digital signal to input is carried out matched filtering, QPSK digital demodulation, convolution decoder, is deinterleaved, RS decoding and the DIFFUSION TREATMENT of deenergizing, correct the error code in transmission,, for demultiplexer provides reliable errorless transmission stream, guarantee high-quality picture-and-sound output.
In an embodiment of the present invention, the demultiplexing process of described demultiplexer divides two steps to carry out, and first, to transmitting the stream demultiplexing, obtains independently program stream, then program stream is carried out demultiplexing, isolates video, audio frequency and other data in program stream.
In an embodiment of the present invention, described digital satellite television signal receiving module also connects a memory cell.
In an embodiment of the present invention, described audio/video decoder also connects a memory cell.
In an embodiment of the present invention, described interface module comprises HDMI output interface, AV output interface, WIFI interface and VGA output interface.
In an embodiment of the present invention, also comprise a power module, with thinking described digital satellite television receiving system power supply.
The invention solves existing receiving system of digital satellite television can only be on a terminal broadcast program, and can not play simultaneously the shortcoming of different programs, make a receiving system to play for multiple terminal, and different receiving terminals can be play different TV programme, utilize greatly the diversity of program source and rich, better hobby and the selection of balance different people to program.
, for making purpose of the present invention, technical scheme and advantage clearer, below will by specific embodiment and relevant drawings, the present invention be described in further detail.
Description of drawings
Fig. 1 is system framework figure of the present invention.
Embodiment
As shown in Figure 1, the invention provides a kind of digital satellite television receiving system, comprise a digital satellite television signal receiving module, described digital satellite television signal receiving module connects a tuner (LNB), a central processing unit (32-bit microprocessor) and an audio/video decoder, described central processing unit connects described audio/video decoder, program data sending module and an interface module, and described program data sending module connects described audio/video decoder and described interface module.
further, described digital satellite television signal receiving module comprises a power splitter, described power splitter will be divided into from the first intermediate-freuqncy signal of tuner behind the n road to be sent into n road analog tuner and carries out down-converted with output zero intermediate frequency analog signal, the zero intermediate frequency analog signal that n road analog to digital converter will be inputted is converted into digital signal, send into the demodulation of n railway digital and channel decoder and carry out demodulating and decoding, the transmission stream of n road demultiplexer after to demodulating and decoding carries out the demultiplexing process, then sending into described audio/video decoder decodes, also comprise that a tuning control is connected described n road analog regulator with the tuner control module, be used for controlling the collaborative work of multiple signals.
Wherein, n road analog tuner is down-converted to zero intermediate frequency and then output by the frequency of the television channel that different local frequencies is set will selects; Described digital demodulation and channel decoder carry out demodulating and decoding and are specially, digital signal to input is carried out matched filtering, QPSK digital demodulation, convolution decoder, is deinterleaved, RS decoding and the DIFFUSION TREATMENT of deenergizing, correct the error code in transmission,, for demultiplexer provides reliable errorless transmission stream, guarantee high-quality picture-and-sound output; The demultiplexing process of described demultiplexer divides two steps to carry out, and first, to transmitting the stream demultiplexing, obtains independently program stream, then program stream is carried out demultiplexing, isolates video, audio frequency and other data in program stream.
Preferably, described digital satellite television signal receiving module also connects a storage unit A, and special, storage unit A can be DRAM; Described audio/video decoder also connects a memory cell B, and special, memory cell B can be SDRAM; Described interface module is connected with terminal presentation facility with wireline interface or wireless sharing mode, make terminal presentation facility can carry out with the program data sending module reception and the transmission of information, instruction, preferably, described interface module comprises the output interface modules such as HDMI output interface, AV output interface, WIFI interface and VGA output interface; In addition, also comprise a power module, with thinking described digital satellite television receiving system power supply.
Central processing unit is controlled tuning control and tuner control module, n road demultiplexer, audio/video decoder, program data sending module and interface module, guarantee the co-ordination between each module, guarantee data processing precision and transmission speed, and user's operational order is processed in response at any time, realizes interactivity good between user and equipment.
Above-listed preferred embodiment; the purpose, technical solutions and advantages of the present invention are further described; institute is understood that; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention; within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. digital satellite television receiving system, it is characterized in that: comprise a digital satellite television signal receiving module, described digital satellite television signal receiving module connects a tuner, a central processing unit and an audio/video decoder, described central processing unit connects described audio/video decoder, program data sending module and an interface module, and described program data sending module connects described audio/video decoder and described interface module.
2. a kind of digital satellite television receiving system according to claim 1, it is characterized in that: described digital satellite television signal receiving module comprises a power splitter, described power splitter will be divided into from the first intermediate-freuqncy signal of tuner behind the n road to be sent into n road analog tuner and carries out down-converted with output zero intermediate frequency analog signal, the zero intermediate frequency analog signal that n road analog to digital converter will be inputted is converted into digital signal, send into the demodulation of n railway digital and channel decoder and carry out demodulating and decoding, the transmission stream of n road demultiplexer after to demodulating and decoding carries out the demultiplexing process, then sending into described audio/video decoder decodes, also comprise that a tuning control is connected described n road analog regulator with the tuner control module, be used for controlling the collaborative work of multiple signals.
3. a kind of digital satellite television receiving system according to claim 2, it is characterized in that: described digital demodulation and channel decoder carry out demodulating and decoding and are specially, digital signal to input is carried out matched filtering, QPSK digital demodulation, convolution decoder, is deinterleaved, RS decoding and the DIFFUSION TREATMENT of deenergizing, correct the error code in transmission,, for demultiplexer provides reliable errorless transmission stream, guarantee high-quality picture-and-sound output.
4. a kind of digital satellite television receiving system according to claim 2, it is characterized in that: the demultiplexing process of described demultiplexer divides two steps to carry out, first to transmitting the stream demultiplexing, obtain independently program stream, then program stream is carried out demultiplexing, isolate video, audio frequency and other data in program stream.
5. a kind of digital satellite television receiving system according to claim 1, it is characterized in that: described digital satellite television signal receiving module also connects a memory cell.
6. a kind of digital satellite television receiving system according to claim 1, it is characterized in that: described audio/video decoder also connects a memory cell.
7. a kind of digital satellite television receiving system according to claim 1, it is characterized in that: described interface module comprises HDMI output interface, AV output interface, WIFI interface and VGA output interface.
8. a kind of digital satellite television receiving system according to claim 1, is characterized in that: also comprise a power module, with thinking described digital satellite television receiving system power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310350670.1A CN103402064B (en) | 2013-08-13 | 2013-08-13 | A kind of digital satellite television receives device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310350670.1A CN103402064B (en) | 2013-08-13 | 2013-08-13 | A kind of digital satellite television receives device |
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| Publication Number | Publication Date |
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| CN103402064A true CN103402064A (en) | 2013-11-20 |
| CN103402064B CN103402064B (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310350670.1A Expired - Fee Related CN103402064B (en) | 2013-08-13 | 2013-08-13 | A kind of digital satellite television receives device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103813203A (en) * | 2014-02-25 | 2014-05-21 | 广州视源电子科技股份有限公司 | Household television multi-screen display system |
| CN104506925A (en) * | 2015-01-08 | 2015-04-08 | 大唐微电子技术有限公司 | Multimedia gateway and method |
| CN104219472B (en) * | 2014-09-24 | 2016-08-17 | 浙江容贝电子科技有限公司 | Mobile satellite television receiving system and receiving method |
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| WO1998026593A1 (en) * | 1996-12-12 | 1998-06-18 | Rockwell Semiconductor Systems, Inc. | Digital video converter box for subscriber/home with multiple television sets |
| US6801959B1 (en) * | 2001-05-16 | 2004-10-05 | Lexmark International, Inc. | Relaxed-timing universal serial bus with a start of frame packet generator |
| CN1612498A (en) * | 2003-10-28 | 2005-05-04 | 福州创频科技有限公司 | Receiving monitoring device for satellite broadcasting system |
| CN101984656A (en) * | 2010-11-25 | 2011-03-09 | 合肥润东通讯科技有限公司 | Wireless satellite television transceiver |
| CN102547431A (en) * | 2012-01-11 | 2012-07-04 | 深圳创维数字技术股份有限公司 | Set-top box for supporting multiple television terminals and method |
| CN203377983U (en) * | 2013-08-13 | 2014-01-01 | 福州大学 | A digital satellite television receiving device |
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2013
- 2013-08-13 CN CN201310350670.1A patent/CN103402064B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998026593A1 (en) * | 1996-12-12 | 1998-06-18 | Rockwell Semiconductor Systems, Inc. | Digital video converter box for subscriber/home with multiple television sets |
| US6801959B1 (en) * | 2001-05-16 | 2004-10-05 | Lexmark International, Inc. | Relaxed-timing universal serial bus with a start of frame packet generator |
| CN1612498A (en) * | 2003-10-28 | 2005-05-04 | 福州创频科技有限公司 | Receiving monitoring device for satellite broadcasting system |
| CN101984656A (en) * | 2010-11-25 | 2011-03-09 | 合肥润东通讯科技有限公司 | Wireless satellite television transceiver |
| CN102547431A (en) * | 2012-01-11 | 2012-07-04 | 深圳创维数字技术股份有限公司 | Set-top box for supporting multiple television terminals and method |
| CN203377983U (en) * | 2013-08-13 | 2014-01-01 | 福州大学 | A digital satellite television receiving device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103813203A (en) * | 2014-02-25 | 2014-05-21 | 广州视源电子科技股份有限公司 | Household television multi-screen display system |
| CN104219472B (en) * | 2014-09-24 | 2016-08-17 | 浙江容贝电子科技有限公司 | Mobile satellite television receiving system and receiving method |
| CN104506925A (en) * | 2015-01-08 | 2015-04-08 | 大唐微电子技术有限公司 | Multimedia gateway and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103402064B (en) | 2016-08-03 |
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