CN110290091A - A kind of data speed acceleration flash chamber - Google Patents
A kind of data speed acceleration flash chamber Download PDFInfo
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- CN110290091A CN110290091A CN201910556227.7A CN201910556227A CN110290091A CN 110290091 A CN110290091 A CN 110290091A CN 201910556227 A CN201910556227 A CN 201910556227A CN 110290091 A CN110290091 A CN 110290091A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/40—Transceivers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/516—Details of coding or modulation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/36—Modulator circuits; Transmitter circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/10—Adaptations for transmission by electrical cable
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Multimedia (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Optical Communication System (AREA)
Abstract
The present invention provides a kind of data speed acceleration flash chamber, it include: light wave decomposition multiplex module, optical receiver module, the connection for tuning demodulation block, QAM modulation module, central processor CPU module, frequency mixing module, RF Amplifier Module, and by can convert radiofrequency signal for composite optical signal and be conveyed to terminal receiver, to realize the data processing of IP network, it may be implemented to be improved significantly to the main line IP data downstream bandwidth that radio and television hfc plant sub-headend exports, bandwidth also may make to promote the high speed to 100,000,000.
Description
Technical field
The present invention relates to cable broadband speed-raising capacity-enlarging systems, in particular to data speed acceleration flash chamber.
Background technique
Cable TV network has developed to today since birth, experienced over more than 40 years, provides to hundreds of millions users high-quality
TV broadcasting service.But with the fast development of IP technology, universal and the 5G epoch the arrival of fiber to the home, 4G technology,
Cable TV network has received unprecedented enormous impact.Cable tv broadcast network is supplied to the one-way transmission service of user
It is increasingly difficult to meet the needs of users are to video content.Before more than 20 years, there are some cable television operators just
It begins trying to start to carry out bidirectional transformation to cable TV network using such as Docsis technology, although obtaining some effects,
But the epoch registered one's residence in past universal low bandwidth also maintain operation reluctantly.But with the light of telecom operators' Rapid Popularization
Fibre is registered one's residence after mode, and bandwidth of registering one's residence is promoted rapidly from past 2M, 5M, 10M to 50M, 100M even 200M.This make broadcasting and TV with
Telecommunications IP registers one's residence bandwidth difference away from widening rapidly, and the competitive disadvantages of broadcasting and TV are more obvious.In recent years in worldwide, You Xianguang
TV user quantity is broadcast all sharply to be lost.Although cable television bidirectional technique also constantly upgrades and improves, such as Docsis
Technical standard has been upgraded to 3.1, and downlink reaches as high as 10G bandwidth, up and down up to 2G bandwidth.And there has also been considerable for EOC technology
Progress, the HomeplugAV2.0 technology that present broadcasting and TV generally use also accomplished uplink and downlink share bandwidth reach or approach
300Mbps.The HiNOC standard promoted at home at present is up to 1Gbps physical layer transmission rate！But it is wired at present wide
It is also all obvious scarce in the presence of influencing it with rival and contending with to broadcast wired transmitted in both directions technology that television operator is generallyd use
It falls into.
Summary of the invention
The invention proposes the important components that a kind of data speed acceleration flash chamber is cable broadband speed-raising capacity-enlarging system
It realizes under cable TV HFC unidirectional broadcast network environment, user terminal IP message transmission rate is improved, to realize the whole network broadband
The purpose of speed-raising dilatation.
To achieve the goals above, the present invention the following technical schemes are provided:
Light wave decomposition multiplex module, optical receiver module, tuning demodulation block, QAM modulation module, central processing unit
CPU module, frequency mixing module, RF Amplifier Module；
Data speed acceleration flash chamber receives composite optical signal, isolates two groups of lightwave signals through light wave demultiplexing module,
And the lightwave signal is transported in optical receiver module, optical receiver module converts two groups of radiofrequency signals simultaneously for the lightwave signal
Output, wherein one group include IP data radiofrequency signal, another group be the radiofrequency signal comprising broadcasting and TV television services, described one group
Radiofrequency signal comprising IP data is input in tuning demodulation block, and tuning demodulation block is completed to tune and export more
Road MPTS flow signal to QAM modulation module after, the QAM modulation module by multichannel MPTS stream signal carry out demultiplexing and again again
With then forming the radiofrequency signal that multiple frequency points were modulated by QAM modulation module and exported to new multichannel MPTS stream, then export
Another group of radiofrequency signal comprising broadcasting and TV television services that radiofrequency signal is exported with optical receiver module is mixed in frequency mixing module
Frequently, it is output to RF Amplifier Module again after forming mixed frequency signal, RF Amplifier Module, which converts the chaotic signal to, includes
Line is managed the radiofrequency signal of TV signal and IP data-signal mainly and is exported to terminal receiver；Central processing CPU module and QAM tune
The connection of molding block, central processing CPU module are connected with multiple tuning demodulation modules.
Control command is parsed by being issued in TS stream in QAM modulation module by higher level front end, further according to control command
It completes to the frequency locking and demodulation operation of QAM modulation module and completes to the multichannel MPTS demultiplexing flowed and multiplexing operation again,
And it completes the setting of QAM modulation module running parameter and completes the modulated process to the multichannel MPTS stream being newly multiplexed.
The central processor CPU unit issues control command according to communications protocol specification, to complete to demodulate tuning
The frequency locking of unit operates and demodulates parameter setting operation, flows the multichannel MPTS of tuning demodulating unit output in QAM modulation module
Inside demultiplexing control and multiplexing control carry out parameter setting operation to QAM modulation module.
Preferably, the light wave decomposition multiplex module is dense wave division multipurpose DWDM functional module or division multiplexing optical WDM function
It can module.
Preferably, the tuning demodulation block is more than 8~32 a functional units, can be simultaneously from the radiofrequency signal of input
Middle tuning demodulates the MPTS stream of multiple frequency points.
Preferably, the QAM modulation module further includes fpga chip or QAM modulation special chip, by fpga chip or QAM
It modulates special chip and completes the input of multichannel MPTS stream, demultiplexing, again multiplexing, the conversion of QAM modulation device signal.
Preferably, the QAM modulation module is connect with central processing CPU module by HSSI High-Speed Serial Interface.
Preferably, central processing CPU module is connected by I2C interface with multiple tuning demodulation modules.
Preferably, the QAM modulation module parses in PAT, PMT, SI, PSI and PSIP table defined in any frequency point
Communication signaling simultaneously passes to central processing CPU module, then parses the data speed acceleration flash chamber pair by central processing CPU module
The control command answered, the central processing CPU module control QAM modulation module according to control command and complete to input each road MPTS
The demultiplexing of stream, and the SPTS stream of demultiplexing output is multiplexed into again in new MPTS stream, to complete entire communication protocols
View process.
Preferably, the optical receiver module and RF Amplifier Module are integrally disposed in the machine of the data speed acceleration flash chamber
Inside shell.
By implementing above technical scheme, have following technical effect that the device is connect by light wave decomposition multiplex module, light
Receive module, tuning demodulation block, QAM modulation module, central processor CPU module, frequency mixing module, RF Amplifier Module
Connection, and by that can convert composite optical signal to radiofrequency signal and be conveyed to terminal receiver, to realize IP network
Data processing；The device is realized unidirectional in cable TV HFC as the important component of cable broadband speed-raising capacity-enlarging system
Under broadcasting network environment, user terminal IP message transmission rate is improved, to realize the purpose of the whole network broadband speed-raising dilatation；The device
The double lightwave signals that hfc plant optical node can be exported are separated and are handled respectively, and two groups of optical signals are finally converted to radio frequency electrical
Signal simultaneously carries out mixing output, realizes and transmits high bandwidth IP data and legacy network television services in CATV HFC Network
The purpose of signal；The device can separate the IP data needed for user from huge main line IP data, complete in net
The IP data exchange of network node；The device utilizes digital television standard specification, defines network-control order transport protocol, realizes
Node switching function under unidirectional broadcast network environment；Data speed acceleration dilatation functional module group and light-receiving are amplified mould group by the device
It integrates in one apparatus, only must directly replace legacy network in this way in the receiver device of each optical node with regard to achievable network
Part retrofit work, such retrofit work amount can be smaller, while avoiding that original cabinet sky need to be increased because increasing extras
Between trouble and additional investment.
Detailed description of the invention
Fig. 1 provides the connection schematic diagram that cable broadband raises speed capacity-enlarging system for the present invention；
Fig. 2 provides the connection schematic diagram of data speed acceleration flash chamber for the present invention.
Specific embodiment
For a better understanding of the technical solution of the present invention, the implementation that the present invention is described in detail provides with reference to the accompanying drawing
Example.
The embodiment of the present invention provides cable broadband speed-raising capacity-enlarging system, as shown in Figure 1,
A kind of cable broadband speed-raising capacity-enlarging system, which is characterized in that
Including core switch 20, IPQAM modulating equipment 21, optical sender 22, optical multiplexer 23, data speed acceleration dilatation dress
Set 24, terminal receiver 25；
The core switch 20 connects internet, and can receive line number on the IP that subscriber household uploads by IP network
According to；The IP data of internet are carried out uplink and downlink and are separated into IP upstream data and IP downlink data, the core by core switch 20
Heart interchanger 20 and IP downlink data is successively grouped and subpackage processing；Then IP downlink data subpackage processing completed
It wraps on the IPQAM modulating equipment 21 being sent into；The instruction requirement issued by IPQAM modulating equipment 21 according to core switch 20, will
IP downlink data packet is converted to MPTS stream, then MPTS stream modulation is formed multifrequency point radiofrequency signal, and IPQAM modulating equipment 21 is by institute
It states multifrequency point radiofrequency signal and is sent to optical sender 22, optical sender 22 converts optical signal for multifrequency point radiofrequency signal and is sent to
Optical multiplexer 23, the television services optical signal that optical multiplexer 23 sends optical signal and radio and television big net carry out compound place
Reason becomes composite optical signal, and sends the composite optical signal to data speed acceleration flash chamber 24, data speed acceleration flash chamber
24 convert radiofrequency signal for composite optical signal and are sent to terminal receiver 25；
Subscriber household receives wired master in the conveying radiofrequency signal of data speed acceleration flash chamber 24 by terminal receiver 25
TV signal and IP downlink data signal are sought, and effective access is formed by IP network and core switch 20 and completes IP data time
It passes, to realize the repertoire of entire IP data communications.
Specifically, the IPAQAM modulating equipment 21 connects core switch 20 by 10,000,000,000 IP interfaces or optical fiber interface,
And the IP downlink data packet of 6Gbps or more is modulated to 44MHz~900MHz analog bandwidth by IPQAM modulating equipment 21 respectively
In the radiofrequency signal of 100 or more interior 8MHz bandwidth.
Specifically, the optical multiplexer 23 is close wavelength-division multiplex technology DWDM or wavelength-division multiplex technique WDM.
Specifically, composite optical signal is transported on multiple optical branching devices of hfc plant by optical multiplexer 23, then by optical branch
Multiple optical nodes of the device by composite optical signal Jing Guo hfc plant are by composite optical signal to IP data speed acceleration flash chamber 24.
Specifically, the IP data exchange agreement all follows IP communications protocol code requirement.
Specifically, the IP data of internet are carried out uplink and downlink and are separated into IP upstream data and IP downlink by core switch 20
Data, the core switch 20 and to IP downlink data be successively grouped and subpackage processing after, further according to each optical node
Lower number of users and bandwidth occupancy situation carry out dynamic frequency point allocation, and static frequency point can be used in the case where number of users is less
Division methods.
Specifically, which is characterized in that the static state frequency point division methods are that each IP address will be distributed to a PID, so
MPTS multiplexing, modulation, demodulation, demultiplexing, again multiple is carried out by IPQAM modulating equipment 21 according to IP address position afterwards
The IP data that obtain are got with, QAM modulation.
Specifically, there is the terminal receiver 25 IP network routing and DVB-C standard cable TV signal to receive simultaneously
Function, and by the IP data distribution to user terminal.
Specifically, terminal receiver 25 is connected to completion with front end core switch 20 by physical network and uploads IP data.
Specifically, the physical network is that CMTS network, EoC network, lan network, telecommunication optical fiber are registered one's residence network, ADSL net
Network, 4G network.
As described in Figure 2, a kind of data speed acceleration flash chamber 24 is also provided in the embodiment of the present invention includes:
Light wave decomposition multiplex module 10, optical receiver module 11, tuning demodulation block 13, QAM modulation module 14, center
Processor CPU module 15, frequency mixing module 16, RF Amplifier Module 17；
Data speed acceleration flash chamber receives composite optical signal, isolates two groups of light wave letters through light wave demultiplexing module 10
Number, and the lightwave signal is transported in optical receiver module 11, optical receiver module 11 converts two groups for the lightwave signal and penetrates
Frequency signal simultaneously exports, wherein one group of radiofrequency signal comprising IP data, another group is the radiofrequency signal comprising broadcasting and TV television services,
The described one group radiofrequency signal comprising IP data is input in tuning demodulation block 13, and tuning demodulation block 13 is completed
Tune and output multi-channel MPTS stream signal to QAM modulation module 14 after, the QAM modulation module 14 by multichannel MPTS stream signal into
Row is demultiplexed and is multiplexed again, is then formed new multichannel MPTS stream and is modulated by QAM modulation module 14 and export multiple frequency points
Another group of radio frequency comprising broadcasting and TV television services that radiofrequency signal, the radiofrequency signal then exported and optical receiver module 11 export is believed
It number is mixed in frequency mixing module 16, is output to RF Amplifier Module 17, RF Amplifier Module 17 again after forming mixed frequency signal
It converts the chaotic signal to the radiofrequency signal including wired main management TV signal and IP data-signal and exports and connect to terminal
Receive device 25；Central processing CPU module 15 is connect with QAM modulation module 14, and central processing CPU module 15 and multiple tunings solve mode transfer
Block 13 is connected.
Control command is parsed by being issued in TS stream in QAM modulation module 14 by higher level front end, is ordered further according to control
It enables and completes frequency locking and demodulation operation to QAM modulation module 14 and complete to the multichannel MPTS demultiplexing flowed and be multiplexed again to grasp
Make, and completes the setting of 14 running parameter of QAM modulation module and complete the modulated process to the multichannel MPTS stream being newly multiplexed.
The central processor CPU unit issues control command according to communications protocol specification, to complete to demodulate tuning
The frequency locking of unit operates and demodulates parameter setting operation, flows the multichannel MPTS of tuning demodulating unit output in QAM modulation module
14 inside demultiplexing controls and multiplexing control carry out parameter setting operation to QAM modulation module 14.
Specifically, the light wave decomposition multiplex module 10 is dense wave division multipurpose DWDM functional module or division multiplexing optical WDM
Functional module.
Specifically, the tuning demodulation block 13 is more than 8~32 a functional units, can be believed simultaneously from the radio frequency of input
Tuning demodulates the MPTS stream of multiple frequency points in number.
Specifically, the QAM modulation module 14 further includes fpga chip or QAM modulation special chip, by fpga chip or
QAM modulation special chip completes the input of multichannel MPTS stream, demultiplexing, again multiplexing, the conversion of QAM modulation device signal.
Specifically, the QAM modulation module 14 is connect with central processing CPU module 15 by HSSI High-Speed Serial Interface.
Specifically, central processing CPU module 15 is connected by I2C interface with multiple tuning demodulation modules 13.
Specifically, the QAM modulation module 14 parses in PAT, PMT, SI, PSI and PSIP table defined in any frequency point
Communication signaling and pass to central processing CPU module 15, then the data speed acceleration dilatation is parsed by central processing CPU module 15
The corresponding control command of device, the central processing CPU module 15 control QAM modulation module 14 according to control command and complete to each
The demultiplexing of road MPTS inlet flow, and the SPTS stream of demultiplexing output is multiplexed into again in new MPTS stream, to complete
Entire communication protocol process.
Specifically, the optical receiver module 11 and RF Amplifier Module 17 are integrally disposed in the data speed acceleration flash chamber
Casing internal.
It is provided for the embodiments of the invention cable broadband speed-raising capacity-enlarging system above and data speed acceleration flash chamber carries out
It is discussed in detail, for those of ordinary skill in the art, thought according to an embodiment of the present invention in specific embodiment and is answered
With in range, there will be changes, in conclusion the contents of this specification are not to be construed as limiting the invention.
Claims (8)
1. a kind of data speed acceleration flash chamber characterized by comprising
Light wave decomposition multiplex module (10), optical receiver module (11), tuning demodulation block (13), QAM modulation module (14),
Central processor CPU module (15), frequency mixing module (16), RF Amplifier Module (17)；
Data speed acceleration flash chamber receives composite optical signal, isolates two groups of lightwave signals through light wave demultiplexing module (10),
And the lightwave signal is transported in optical receiver module (11), optical receiver module (11) converts two groups for the lightwave signal and penetrates
Frequency signal simultaneously exports, wherein one group of radiofrequency signal comprising IP data, another group is the radiofrequency signal comprising broadcasting and TV television services,
The described one group radiofrequency signal comprising IP data is input in tuning demodulation block (13), is tuned demodulation block (13)
After completing tuning and output multi-channel MPTS stream signal to QAM modulation module (14), the QAM modulation module (14) is by multichannel MPTS
Stream signal carries out demultiplexing and is multiplexed again, then forms new multichannel MPTS stream and is modulated and exported by QAM modulation module (14)
Another group of the radiofrequency signal of multiple frequency points, the radiofrequency signal then exported and optical receiver module (11) output includes broadcasting and TV TV
The radiofrequency signal of business is mixed in frequency mixing module (16), is output to RF Amplifier Module again after forming mixed frequency signal
(17), the chaotic signal is converted penetrating including wired main management TV signal and IP data-signal by RF Amplifier Module (17)
Frequency signal and export give terminal receiver (25)；Central processing CPU module (15) is connect with QAM modulation module (14), centre
Reason CPU module (15) is connected with multiple tuning demodulation modules (13).
Control command is parsed by being issued in TS stream in QAM modulation module (14) by higher level front end, further according to control command
It completes frequency locking and demodulation operation to QAM modulation module (14) and completes to the multichannel MPTS demultiplexing flowed and be multiplexed again to grasp
Make, and completes the setting of QAM modulation module (14) running parameter and complete the modulated process to the multichannel MPTS stream being newly multiplexed.
The central processor CPU unit issues control command according to communications protocol specification, to complete to tuning demodulating unit
Frequency locking operation and demodulation parameter setting operation, to tuning demodulating unit output multichannel MPTS flow in QAM modulation module (14)
Inside demultiplexing control and multiplexing control carry out parameter setting operation to QAM modulation module (14).
2. data speed acceleration flash chamber according to claim 1, which is characterized in that the light wave decomposition multiplex module (10)
For dense wave division multipurpose DWDM functional module or division multiplexing optical WDM functional module.
3. data speed acceleration flash chamber according to claim 1, which is characterized in that the tuning demodulation block (13)
For more than 8~32 a functional units, the MPTS stream for demodulating multiple frequency points can be tuned from the radiofrequency signal of input simultaneously.
4. data speed acceleration flash chamber according to claim 1, which is characterized in that the QAM modulation module (14) is also wrapped
Include fpga chip or QAM modulation special chip, by fpga chip or QAM modulation special chip complete multichannel MPTS stream input,
Demultiplexing, again multiplexing, the conversion of QAM modulation device signal.
5. data speed acceleration flash chamber according to claim 1, which is characterized in that the QAM modulation module (14) is in
Centre processing CPU module (15) is connected by HSSI High-Speed Serial Interface.
6. data speed acceleration flash chamber according to claim 1, which is characterized in that central processing CPU module (15) passes through
I2C interface is connected with multiple tuning demodulation modules (13).
7. data speed acceleration flash chamber according to claim 1, which is characterized in that QAM modulation module (14) parsing
Communication signaling in PAT, PMT, SI, PSI and PSIP table defined in any frequency point simultaneously passes to central processing CPU module
(15), the corresponding control command of data speed acceleration flash chamber, the centre then by central processing CPU module (15) are parsed
It manages CPU module (15) and QAM modulation module (14) completion is controlled to the demultiplexing of each road MPTS inlet flow according to control command, and
The SPTS stream of demultiplexing output is multiplexed into again in new MPTS stream, to complete entire communication protocol process.
8. the device of wired broadcasting TV network data communication bandwidth speed-raising dilatation according to claim 1, feature exist
In the optical receiver module (11) and RF Amplifier Module (17) are integrally disposed in the casing of the data speed acceleration flash chamber
Portion.
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| CN201910556227.7A CN110290091B (en) | 2019-06-25 | 2019-06-25 | Data acceleration flash memory |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910556227.7A CN110290091B (en) | 2019-06-25 | 2019-06-25 | Data acceleration flash memory |
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| CN110290091A true CN110290091A (en) | 2019-09-27 |
| CN110290091B CN110290091B (en) | 2022-04-01 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101146219A (en) * | 2007-10-18 | 2008-03-19 | 江西三友网络科技有限公司 | CATV broadband access system based on OFDM technology |
| CN201374788Y (en) * | 2009-03-16 | 2009-12-30 | 重庆景宏高科技有限责任公司 | Integrated service light station |
| CN102045588A (en) * | 2010-12-31 | 2011-05-04 | 深圳市鼎盛威电子有限公司 | Digital TV (television) advertisement and VOD (video on demand) integrated system |
| CN104320191A (en) * | 2014-10-15 | 2015-01-28 | 成都广达电子股份有限公司 | Multiservice access system and multiservice access method based on optical fiber communications |
| CN104935383A (en) * | 2015-06-08 | 2015-09-23 | 上海交通大学 | Uplink system of subcarrier multiplexing optical network of filter based multicarrier modulation |
-
2019
- 2019-06-25 CN CN201910556227.7A patent/CN110290091B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101146219A (en) * | 2007-10-18 | 2008-03-19 | 江西三友网络科技有限公司 | CATV broadband access system based on OFDM technology |
| CN201374788Y (en) * | 2009-03-16 | 2009-12-30 | 重庆景宏高科技有限责任公司 | Integrated service light station |
| CN102045588A (en) * | 2010-12-31 | 2011-05-04 | 深圳市鼎盛威电子有限公司 | Digital TV (television) advertisement and VOD (video on demand) integrated system |
| CN104320191A (en) * | 2014-10-15 | 2015-01-28 | 成都广达电子股份有限公司 | Multiservice access system and multiservice access method based on optical fiber communications |
| CN104935383A (en) * | 2015-06-08 | 2015-09-23 | 上海交通大学 | Uplink system of subcarrier multiplexing optical network of filter based multicarrier modulation |
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