CN107735968B - The device and method for transmitting signal - Google Patents
The device and method for transmitting signal Download PDFInfo
- Publication number
- CN107735968B CN107735968B CN201580080729.7A CN201580080729A CN107735968B CN 107735968 B CN107735968 B CN 107735968B CN 201580080729 A CN201580080729 A CN 201580080729A CN 107735968 B CN107735968 B CN 107735968B
- Authority
- CN
- China
- Prior art keywords
- signal
- analog
- sub
- feedback signal
- digital
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
Classifications
-
- 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
- H04B10/564—Power control
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Amplifiers (AREA)
Abstract
A kind of device and method for transmitting signal are provided, which includes: signal generator, for generating at least two digital input signals；Digital analog converter, for carrying out digital-to-analogue conversion processing to the digital input signals, to generate the first analog input signal；Splitter, for carrying out branch process to first analog input signal, to generate output signal and analog feedback signal；Analog-digital converter, for carrying out analog-to-digital conversion process to the analog feedback signal, to generate digital feedback signal；Controller, for determining the power of at least two sub-figures feedback signal, and according to the power of the first sub-figure feedback signal in at least two sub-figures feedback signal, control the power for the first digital input signals that the signal generator is adjusted at least two digital input signals, to, in the case where the signal exported includes multiple subsignals, the different output power requirement for different subsignals can satisfy.
Description
Technical field
The present invention relates to the communications fields, and more particularly, to the device and method of transmission signal.
Background technique
At present it is known that a kind of technology of transmission of analogue signal, can detect simulation letter in the output port of analog signal
The power of number (in order to facilitate understanding and distinguish, referred to as " output signal "), and as needed (for example, power of customer requirement),
Setting is for example, attenuator (ATT, Attenuator) constant power adjusting means in a transmission path, to adjust the output signal
Power.
But in the case that the output signal includes multiple subsignals, which cannot achieve the function of subsignal rank
Rate is adjusted, and is unable to satisfy the different output power requirement for different subsignals.
Summary of the invention
The present invention provides a kind of device and method for transmitting signal, includes the case where multiple subsignals in the signal exported
Under, it can satisfy the different output power requirement for different subsignals.
In a first aspect, providing a kind of device for transmitting signal, which includes: signal generator, for generating at least
Two digital input signals；Digital analog converter, for carrying out digital-to-analogue conversion processing to the digital input signals, to generate the first mould
Quasi- input signal, first analog input signal include at least two sub first analog input signals, and at least two number is defeated
Enter signal and at least two sub first analog input signal corresponds, frequency corresponding to each sub first analog input signal
It is different；Splitter, for carrying out branch process to first analog input signal, to generate output signal and analog feedback letter
Number, wherein the output signal includes at least two sub- output signals, which includes at least two sub- analog feedbacks
Signal, at least two sub- output signal and at least two sub first analog input signal correspond, at least two submodules
Quasi- feedback signal and at least two sub first analog input signal correspond, also, corresponding same sub first simulation input
The sub- analog feedback signal of signal and the power of sub- output signal have corresponding relationship；Output end, for the output signal is defeated
Out to external；Analog-digital converter, for carrying out analog-to-digital conversion process to the analog feedback signal, to generate digital feedback signal,
The digital feedback signal include at least two sub-figure feedback signals, at least two sub-figures feedback signal and this at least two
Sub- analog feedback signal corresponds；Controller, for determining the power of at least two sub-figures feedback signal, and according to this
The power of the first sub-figure feedback signal at least two sub-figure feedback signals, controls the signal generator and adjusts this at least
The power of the first digital input signals in two digital input signals, wherein the first sub-figure feedback signal and this first
Digital input signals correspond to same sub first analog input signal.
With reference to first aspect, in the first implementation of first aspect, the device further include: balanced device, for pair
First analog input signal carries out equilibrium treatment, so that the power difference between each sub first analog input signal is in
In preset range；The controller is also used to the power according at least two sub-figures feedback signal, controls balanced device progress
The equilibrium treatment.
With reference to first aspect and its above-mentioned implementation, in second of implementation of first aspect, first simulation
Input signal is the signal that frequency is higher than the first preset value, the device further include: tuner, for obtaining analog feedback letter
Number, and frequency spectrum shift processing is carried out to the analog feedback signal, it is pre- lower than second which is converted to frequency
If the signal of value, and will treated that analog feedback signal is transmitted to the analog-digital converter by the frequency spectrum shift, wherein this
Two preset values are less than first preset value；The controller is also used to the frequency according to first analog input signal, controls the tune
Humorous device carries out the frequency spectrum shift processing.
With reference to first aspect and its above-mentioned implementation, in the third implementation of first aspect, first simulation
Input signal is the signal that frequency is higher than the first preset value, the device further include: filter, for obtaining the mould from the splitter
Quasi- feedback signal, and the analog feedback signal is filtered, it is lower than third to remove frequency in the analog feedback signal
The signal of preset value, and will treated that analog feedback signal is transmitted to the analog-digital converter or tuning by the filtering processing
Device.
With reference to first aspect and its above-mentioned implementation, in the 4th kind of implementation of first aspect, which is also wrapped
It includes: optical signal input, for inputting at least two light input signals；Photoelectric converter, for being carried out to the light input signal
Photoelectric conversion processing, to generate the second analog input signal；Combiner, for first analog input signal and second mould
Quasi- input signal is combined processing, to generate target simulation signal；The splitter be specifically used for the target simulation signal into
Row branch process, to generate output signal and analog feedback signal.
With reference to first aspect and its above-mentioned implementation, in the 5th kind of implementation of first aspect, second simulation
Input signal is community's communal TV aerial CATV signal.
With reference to first aspect and its above-mentioned implementation, in the 6th kind of implementation of first aspect, first simulation
Input signal is data over cable service interface specification DOCSIS forward signal.
With reference to first aspect and its above-mentioned implementation, in the 7th kind of implementation of first aspect, which occurs
Device is the device based on on-site programmable gate array FPGA.
With reference to first aspect and its above-mentioned implementation, in the 8th kind of implementation of first aspect, which occurs
Device and the controller are integrated in same device.
With reference to first aspect and its above-mentioned implementation, in the 9th kind of implementation of first aspect, which is point
Cloth Cable Modem Termination System DCMTS equipment.
Second aspect provides a kind of method for transmitting signal, this method comprises: generating at least two numeral inputs letter
Number；Digital-to-analogue conversion processing, to generate the first analog input signal, first analog input signal are carried out to the digital input signals
Including at least two sub first analog input signals, at least two digital input signals and at least two sons, first simulation are defeated
Enter signal one-to-one correspondence, frequency diverse corresponding to each sub first analog input signal；First analog input signal is carried out
Branch process, to generate output signal and analog feedback signal, wherein the output signal includes at least two sub- output signals,
The analog feedback signal includes at least two sub- analog feedback signals, at least two sub- output signal and at least two son the
One analog input signal corresponds, at least two sub- analog feedback signals and at least two sub first analog input signal one
One is corresponding, also, the sub- analog feedback signal of corresponding same sub first analog input signal and the power of sub- output signal have
Corresponding relationship；The output signal is exported to outside；Analog-to-digital conversion process is carried out to the analog feedback signal, it is anti-to generate number
Feedback signal, the digital feedback signal include at least two sub-figure feedback signals, at least two sub-figures feedback signal with should
At least two sub- analog feedback signals correspond；Determine the power of at least two sub-figures feedback signal；At least according to this
The power of the first sub-figure feedback signal in two sub- digital feedback signals, is adjusted at least two digital input signals
The power of first digital input signals, wherein the first sub-figure feedback signal and first digital input signals are corresponding same
Sub first analog input signal.
In conjunction with second aspect, in the first implementation of second aspect, this method further include: according to this at least two
The power of sub-figure feedback signal carries out equilibrium treatment to first analog input signal, so that each sub first simulation input letter
Power difference between number is in preset range.
In conjunction with second aspect and its above-mentioned implementation, in second of implementation of second aspect, first simulation
Input signal is the signal that frequency is higher than the first preset value, this method further include: according to the frequency of first analog input signal,
Frequency spectrum shift processing is carried out to the analog feedback signal, which is converted into frequency lower than the second preset value
Signal.
In conjunction with second aspect and its above-mentioned implementation, in the third implementation of second aspect, first simulation
Input signal is the signal that frequency is higher than the first preset value, this method further include: the analog feedback signal is filtered,
To remove the signal that frequency in the analog feedback signal is lower than third preset value.
In conjunction with second aspect and its above-mentioned implementation, in the 4th kind of implementation of second aspect, this method is also wrapped
It includes: at least two light input signals of input；Photoelectric conversion processing is carried out to the light input signal, to generate the second simulation input letter
Number；Processing is combined to first analog input signal and second analog input signal, to generate target simulation signal；With
And branch process is carried out to first analog input signal, comprising: branch process is carried out to the target simulation signal.
In conjunction with second aspect and its above-mentioned implementation, in the 5th kind of implementation of second aspect, second simulation
Input signal is community's communal TV aerial CATV signal.
In conjunction with second aspect and its above-mentioned implementation, in the 6th kind of implementation of second aspect, first simulation
Input signal is data over cable service interface specification DOCSIS forward signal.
In conjunction with second aspect and its above-mentioned implementation, in the 7th kind of implementation of second aspect, this method application
In for distributed cable modem terminal system DCMTS equipment.
The device and method of transmission signal according to an embodiment of the present invention, by defeated based at least two number generated
Enter signal and generate the first analog signal, and first analog signal is divided by the output that power has corresponding relationship by splitter
Signal and analog feedback signal can obtain at least two numbers by carrying out digital-to-analogue conversion processing to the analog feedback signal
Feedback signal can be according to the power of each digital feedback signal, to each by the power of each digital feedback signal of determination
The power of digital input signals is adjusted, that is, in the case that the output signal includes multiple subsignals, can satisfy for not
With the different output power requirement of subsignal.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be in embodiment or description of the prior art
Required attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the invention
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the schematic diagram of the device of the transmission signal of one embodiment of the invention.
Fig. 2 is the schematic diagram of the device of the transmission signal of another embodiment of the present invention.
Fig. 3 is the schematic flow chart of the method for the transmission signal of one embodiment of the invention.
Specific embodiment
Multiple embodiments are described referring now to attached drawing, wherein indicating similar elements herein with identical appended drawing reference.
In the following description, for convenient for explain, a large amount of details are given, in order to provide to the comprehensive of one or more embodiments
Understand.It may be evident, however, that the embodiment can also be practiced without these specific details.In other examples, with block diagram
Form shows known features and equipment, in order to describe one or more embodiments.
The term " component " that uses in the present specification, " module ", " system " etc. for indicate computer-related entity,
Hardware, firmware, the combination of hardware and software, software or software in execution.For example, component can be but not limited to, handling
Process, processor, object, executable file, execution thread, program and/or the computer run on device.By diagram, counting
Calculating the application run in equipment and calculating equipment can be component.One or more components can reside in process and/or execution
In thread, component can be located on a computer and/or be distributed between 2 or more computers.In addition, these components can
It is executed from the various computer-readable mediums for being stored with various data structures above.Component can be for example according to one or more
A data grouping (such as from two components interacted with local system, distributed system and/or internetwork another component
Data, such as the internet by signal and other system interactions) signal communicated by locally and/or remotely process.
In addition, various aspects of the invention or feature may be implemented into device or use standard program and/or engineering technology
Product.Term " product " used herein is covered can be from any computer-readable device, carrier or the meter of medium access
Calculation machine program.For example, computer-readable medium may include, but be not limited to: magnetic memory device is (for example, hard disk, floppy disk or tape
Deng), CD is (for example, CD (Compact Disk, compact disk), DVD (Digital Versatile Disk, digital versatile disc)
Deng), smart card and flush memory device (for example, EPROM (Erasable Programmable Read-Only Memory, it is erasable
Programmable read only memory), card, stick or Keyed actuator etc.).It is used in addition, various storage media described herein can represent
One or more equipment of storage information and/or other machine readable medias.Term " machine readable media " may include but unlimited
In wireless channel and the various other media that can be stored, include and/or carry instruction and/or data.
Fig. 1 is the schematic diagram of the device 100 of the transmission signal of one embodiment of the invention.As shown in Figure 1, the device
100 include:
Signal generator 110, for generating at least two digital input signals；
Digital analog converter 120, for carrying out digital-to-analogue conversion processing to the digital input signals, to generate the first simulation input
Signal, first analog input signal include at least two sub first analog input signals, at least two digital input signals
It is corresponded at least two sub first analog input signal, frequency diverse corresponding to each sub first analog input signal；
Splitter 130, it is anti-to generate output signal and simulation for carrying out branch process to first analog input signal
Feedback signal, wherein the output signal includes at least two sub- output signals, and the analog feedback signal is quasi- including at least two submodules
Feedback signal, at least two sub- output signal and at least two sub first analog input signal correspond, and at least two
Sub- analog feedback signal and at least two sub first analog input signal correspond, also, corresponding same sub first simulation
The sub- analog feedback signal of input signal and the power of sub- output signal have corresponding relationship；
Output end 140, for exporting the output signal to outside；
Analog-digital converter 150, for carrying out analog-to-digital conversion process to the analog feedback signal, to generate digital feedback letter
Number, the digital feedback signal include at least two sub-figure feedback signals, at least two sub-figures feedback signal and this at least
Two sub- analog feedback signals correspond；
Controller 160, for determining the power of at least two sub-figures feedback signal, and according at least two subnumber
The power of the first sub-figure feedback signal in word feedback signal controls the signal generator and adjusts at least two numeral input
The power of the first digital input signals in signal, wherein the first sub-figure feedback signal and first digital input signals
Corresponding same sub first analog input signal.
In embodiments of the present invention, which can be used for transmitting the output including at least two sub- output signals and believes
Number.Also, each sub- output signal occupies the frequency domain resource of system offer by the way of frequency division multiplexing, that is, each sub- output signal
The frequency domain resource carried is different, in other words, the frequency diverse of each sub- output signal.
Optionally, which is distributed cable modem terminal system DCMTS equipment.
Also, optionally, which is data over cable service interface specification DOCSIS forward direction letter
Number.
Specifically, distributed cable modem terminal system (DCMTS, Distributed Cable Modem
Termination System) equipment as a completely new form, it can be in coaxial cable, for example, copper wire (Cable) route
The business such as upper offer data, voice.
The impedance representative value of Cable cable is 75 ohm, has good shielding, and transmission band can be supported to 1 gigahertz (GHZ)
(GHz), the mode of channeling is used to provide frequency modulation (FM, Frequency Modulation), DTV, simulation for client
TV, data over cable service interface specification (DOCSIS, Data Over Cable Service Interface
Specifications) the multiple business such as data, voice based on DOCSIS.
Currently, the radio data system of multiple countries has generallyd use DCMTS.In the signal transmission of DCMTS, forward direction letter
Number (that is, transmission from the network equipment to terminal device) uses broadcast transmission, and a network equipment (for example, DCMTS equipment) is defeated
Signal out is after branch, each terminal device, for example, the cable modem (CM, Cable Modem) or machine of family
Top box etc. can receive signal, also, include multiple subsignals (for example, signal of different channel), each subsignal in the signal
The information for capableing of the unique identification subsignal is carried, for example, the identification informations such as sequence number (SN, Serial Number), from
And CM can be according to the distributed SN of network side, only processing is to subsignal corresponding to the SN (for example, carrying identical or corresponding
The signal of SN), ignore the subsignal for issuing other terminal devices.
Therefore, it can be used for transmitting DOCSIS forward signal in the device 100 of the transmission signal of the embodiment of the present invention, that is,
The device 100 can be DCMTS equipment.
It should be understood that entity device corresponding to the device 100 of transmission signal listed above and the signal transmitted are only
Exemplary illustration, the present invention is not limited to this, other be used for transmission the signal transmitted using frequency division multiplexing mode device or
Equipment is fallen within the protection scope of the present invention.
Hereinafter, in order to facilitate understanding and distinguish, using DCMTS equipment as the device 100 for, be described in detail.
In the following, the structure and function of each device in the device 100 is described in detail respectively.
A. signal generator 110
In embodiments of the present invention, at least two digital input signals can be generated in signal generator 110, hereinafter, in order to
It is easy to understand and illustrates, by taking at least two digital input signals include digital signal #A and digital signal #B as an example, said
It is bright.
Also, signal generator 110 can determine frequency corresponding to each digital input signals, and in other words, each number is defeated
Enter signal and is changed into the frequency that analog signal (that is, first analog input signal) is carried on afterwards after aftermentioned digital-to-analogue conversion processing
Domain resource, hereinafter, in order to facilitate understanding and explanation, frequency corresponding to digital signal #A is denoted as: frequency #A, by number believe
Frequency corresponding to number #B is denoted as frequency #B.
Also, signal generator 110 can by each digital input signals with defined power (for example, according to client to dress
Set the power of the requirement and determination of the power of each subsignal in the output signal that 100 are exported) it is sent to aftermentioned digital analog converter
120, hereinafter, in order to facilitate understanding and explanation, the power of digital signal #A is denoted as: power #A, by the power of digital signal #B
It is denoted as frequency #B.
Also, signal generator 110 can also frequency corresponding to each digital input signals instruction information (for example,
The instruction information of frequency #A and the instruction information of frequency #B) it is sent to aftermentioned digital analog converter 120.
In embodiments of the present invention, the method and process which generates digital signal can be with existing skill
Art is similar, and here in order to avoid repeating, description is omitted.
B. digital analog converter 120
In embodiments of the present invention, digital analog converter 120 can obtain above-mentioned digital input signals from signal generator 110
(for example, digital signal #A and digital signal #B), and digital-to-analogue conversion processing is carried out to the digital input signals, to generate the first mould
Quasi- input signal (hereinafter, in order to facilitate understanding and distinguishing, is denoted as: analog signal # α), wherein analog signal # α includes at least
Two the first analog input signals of son, wherein at least two sub first analog input signal and above-mentioned at least two number are defeated
Enter signal one-to-one correspondence, in order to facilitate understanding and distinguish, the first analog input signal of son corresponding to digital signal #A is denoted as:
Analog signal # αA；The first analog input signal of son corresponding to digital signal #B is denoted as: analog signal # αB。
Specifically, digital analog converter 120 can obtain corresponding to each digital input signals from signal generator 110
The instruction information (for example, instruction information of the instruction information of frequency #A and frequency #B) of frequency, and believed according to the instruction of frequency #A
Breath carries out digital-to-analogue conversion processing to digital signal #A, to generate the analog signal # α for being carried on frequency #AA；According to frequency #B's
It indicates information, digital-to-analogue conversion processing is carried out to digital signal #B, to generate the analog signal # α for being carried on frequency #BB。
In embodiments of the present invention, the specific method and process for the digital-to-analogue conversion processing that digital analog converter 120 is carried out can
With similar to the prior art, here, in order to avoid repeating, description is omitted.
Also, the power of the analog signal generated after digital-to-analogue conversion is corresponding with the power of original digital signal
(for example, can be identical), that is, analog signal # αAPower can be with power #A corresponding (for example, identical), analog signal # αB
Power can be with power #B corresponding (for example, identical).
C. splitter 130
In embodiments of the present invention, splitter 130 can extract the signal of regulation power as mould from analog signal # α
Quasi- feedback signal, and (be referred to as residual signal as output signal: radiofrequency signal), it is sent to by output end 140
It is external.
It is non-limiting as example, in embodiments of the present invention, 140 splitters can be used as the splitter 130,
In, which can make the signal (that is, output signal) transmitted by main road (that is, the access connecting with output end 140)
Decay 1dB, and the signal transmitted by branch (that is, the access connecting with aftermentioned analog-digital converter 150) can be made (that is, simulation is anti-
Feedback signal) decaying 40dB.
It should be noted that in embodiments of the present invention, the band of the bandwidth of the analog feedback signal and analog signal # α
Width is identical, that is, the analog feedback signal includes at least two sub- analog feedback signals, also, at least two sub- analog feedback
Signal and at least two sub first analog input signal correspond, also, the one-to-one correspondence can refer to, at least two son
Analog feedback signal is identical as at least two sub quantity of first analog input signal, and a sub- analog feedback signal and institute
The frequency of corresponding sub first analog input signal is identical or corresponding, hereinafter, in order to facilitate understanding and explanation, will with simulation believe
Number # αACorresponding sub- analog feedback signal is denoted as: feedback signal #A, will be with analog signal # αBCorresponding submodule intends feedback letter
It number is denoted as: feedback signal #B, that is, feedback signal #A can be carried on frequency #A, and feedback signal #B can be carried on frequency #
B。
Also, in embodiments of the present invention, the bandwidth of the output signal is identical as the bandwidth of analog signal # α, that is, should
Output signal includes at least two sub- output signals, also, at least two sub- output signal and at least two sub first mould
Quasi- input signal corresponds, also, the one-to-one correspondence can refer to, at least two sub- output signal and at least two son the
The quantity of one analog input signal is identical, and the frequency phase of a sub- output signal and corresponding the first analog input signal of son
With or it is corresponding, hereinafter, in order to facilitate understanding and explanation, will be with analog signal # αACorresponding sub- output signal is denoted as: output
Signal #A, will be with analog signal # αBCorresponding sub- output signal is denoted as: output signal #B, that is, output signal #A can be held
It is loaded in frequency #A, output signal #B can be carried on frequency #B.
In addition, in embodiments of the present invention, also, the sub- analog feedback signal of corresponding same sub first analog input signal
There is corresponding relationship with the power of sub- output signal, also, the corresponding relationship can decline to different branch according to splitter 130
Subtract and determines.To which the power of above-mentioned feedback signal #A can be used in determining power (in other words, the output work of output signal #A
Rate), the power of above-mentioned feedback signal #B can be used in determining the power of output signal #B.
Also, the power of the output signal generated after branch process is corresponding with the power of original analog signal
(for example, the decaying of main road can be determined according to splitter), that is, the power of output signal #A can be opposite with power #A
It answers, that is, by regulation power #A, the power of output signal #A can be changed；Also, the power of output signal #B can be with function
Rate #B is corresponding, that is, by regulation power #B, can change the power of output signal #B.
Similarly, the power phase of the power of the feedback analog signal generated after branch process and original analog signal
Corresponding (for example, the decaying of branch can be determined according to splitter), that is, the power of feedback signal #A can be with power #A phase
It is corresponding, that is, by regulation power #A, the power of feedback signal #A can be changed；Also, the power of feedback signal #B can be with function
Rate #B is corresponding, that is, by regulation power #B, can change the power of feedback signal #B.
D. analog-digital converter 150
In embodiments of the present invention, analog-digital converter 150 can obtain above-mentioned analog feedback signal (example from splitter 130
Such as, feedback signal #A and feedback signal #B), and analog-to-digital conversion process is carried out to the analog feedback signal, to generate digital feedback
Signal, wherein digital feedback signal includes at least two sub-figure feedback signals, wherein at least two sub-figure feedback signals
It corresponds with above-mentioned at least two sub- analog feedback signals, in order to facilitate understanding and distinguishes, it will be corresponding to feedback signal #A
Sub-figure feedback signal is denoted as: feedback signal #A '；Sub-figure feedback signal corresponding to feedback signal #B is denoted as: feedback letter
Number #B '.
In embodiments of the present invention, the specific method and process for the analog-to-digital conversion process that analog-digital converter 150 is carried out can
With similar to the prior art, here, in order to avoid repeating, description is omitted.
Also, the power of the digital signal generated after analog-to-digital conversion is corresponding with the power of original analog signal
(for example, can be identical), that is, (in other words, the power of above-mentioned feedback signal #A ' can be used in the power of determining output signal #A
Output power), the power of above-mentioned feedback signal #B ' can be used in determining the power of output signal #B.
E. controller 160
In embodiments of the present invention, which can obtain digital feedback signal from above-mentioned analog-digital converter 150,
And detect each sub-figure feedback signal (for example, above-mentioned feedback signal #A ' and above-mentioned feedback signal #B ') in the digital feedback signal
Power, here, the method and process which detects the power of received signal can be with prior art phase
Seemingly, here, in order to avoid repeating, description is omitted.
For example, since the power of feedback signal #A ' as described above (that is, an example of the first sub-figure feedback signal) being capable of table
The power of output signal #A is levied, and the power of above-mentioned power A and output signal #A has corresponding relationship (that is, by adjusting function
Rate A can be such that the power of output signal #A accordingly changes), and can therefore, controller 160 can be according to the visitor obtained in advance
Family determines whether the power of output signal #A meets customer requirement for the power requirement of output signal #A, and is determining
When being unsatisfactory for customer requirement for the power of output signal #A, it is based on the relationship of feedback signal #A ' and customer requirement, in adjusting
It states and is obtaining above-mentioned power A, and then change the power of output signal #A accordingly, to meet customer requirement.For example, if control
The power of the #A ' based on the feedback signal of device 160 determines that the power of output signal #A is less than the power of customer requirement, then can control
110 increased wattage A of signal generator, so that the power of output signal #A be made to increase.
The device of transmission signal according to an embodiment of the present invention, by being based at least two digital input signals generated
Generate the first analog signal, and by splitter by first analog signal be divided into output signal of the power with corresponding relationship and
Analog feedback signal can obtain at least two digital feedbacks letter by carrying out digital-to-analogue conversion processing to the analog feedback signal
Number, it, can be defeated to each number according to the power of each digital feedback signal by the power of each digital feedback signal of determination
The power for entering signal is adjusted, that is, in the case that the output signal includes multiple subsignals, can satisfy for different sub- letters
Number different output power requirement.
Optionally, the device further include:
Balanced device, for carrying out equilibrium treatment to first analog input signal, so that each sub first analog input signal
Power difference each other is in preset range；
The controller is also used to the power according at least two sub-figures feedback signal, controls the balanced device and carries out this
Weighing apparatus processing.
Specifically, being influenced by objective condition such as the transmission characteristics of Cable network itself, analog signal is in Cable network
In transmission there are following characteristics, that is, high frequency signal attenuation is big, and low frequency signals decay is small.
Also, in order to avoid the interference between each subsignal, terminal device wishes each sub- letter in received signal
Number power it is as similar as possible (in other words).
In view of the foregoing, as shown in Fig. 2, the device 100 can also include balanced device (EQ, Equalizaer) 170.And
And it is non-limiting as example, the balanced device 170 can (for example, via other devices and) be located at digital analog converter 120 with point
Between road device 130, thus, it is possible to equilibrium treatment be carried out by the balanced device 170, so that the output letter exported from output end 140
The power (in other words, level) of each sub- output signal in number is as close as possible.
Specifically, in embodiments of the present invention, controller 160 can be fed back according to each sub-figure obtained as described above
The power of signal controls to adjust the equilibrium treatment of the balanced device 170.
For example, showing the function of output signal #A if the power of feedback signal #A ' is less than the power of feedback signal #B '
Rate is less than the power of output signal #B.
At this point, if controller 160 is anti-with this according to power requirement of the client obtained in advance for output signal #A
The power of feedback signal #A ' determines that the power of output signal #A is higher when being unsatisfactory for customer requirement, then controller 160 can be with
Controlling signal equalizer 170 reduces the power of output signal #B.
In contrast, if be adjusted simply by balanced device 170, it is less than output letter in the power of output signal #A
In the case where the power of number #B, it is understood that there may be the power of 170 rising output signal #A of balanced device so that output signal #A power
The situation close with the power of output signal #B leads to not meet customer requirement.
Optionally, which is the signal that frequency is higher than the first preset value, the device further include:
Tuner carries out frequency spectrum shift processing for obtaining the analog feedback signal, and to the analog feedback signal, will
The analog feedback signal is converted to the signal that frequency is lower than the second preset value, and will treated that simulation is anti-by the frequency spectrum shift
Feedback signal is transmitted to the analog-digital converter, wherein second preset value is less than first preset value；
The controller is also used to the frequency according to first analog input signal, controls the tuner and carries out the frequency spectrum shift
Processing.
Specifically, it is generally the case that the analog signal transmitted in the device 100 is high-frequency signal, for example, 1.2Ghz
Interior high-frequency signal, in this case, if directly being carried out at analog-to-digital conversion by above-mentioned analog-digital converter to analog feedback signal
Reason, then to the more demanding of device, it is difficult to realize.
In view of the foregoing, as shown in Fig. 2, the device 100 can also include tuner (TUNER) 180.Also, as
Example and it is non-limiting, the tuner 180 can (for example, via other devices and) be located at analog-digital converter 150 and splitter 130
Between, thus, controller 170 can inform the signal of 180 frequency spectrum shift of being carried out processing of tuner (that is, each submodule is quasi- anti-
Feedback signal) frequency, thus, tuner 180 can be higher by said frequencies (for example, 1.2Ghz, that is, the one of the first preset value
Example) signal be converted to the signal of frequency lower (for example, 200Mhz, that is, an example of the second preset value).Thus, it is possible to be easy
Above-mentioned analog-to-digital conversion process is realized on ground, improves practicability of the invention.
Optionally, which is the signal that frequency is higher than the first preset value, the device further include:
Filter for obtaining the analog feedback signal from the splitter, and is filtered place to the analog feedback signal
Reason, to remove the signal that frequency in the analog feedback signal is lower than third preset value, and will treated by the filtering processing
Analog feedback signal is transmitted to the analog-digital converter or tuner.
Specifically, it is generally the case that the analog signal transmitted in the device 100 is high-frequency signal, for example, 1.2Ghz
Interior high-frequency signal, in this case, if directly being carried out at analog-to-digital conversion by above-mentioned analog-digital converter to analog feedback signal
Reason, then in the digital feedback signal of acquisition there may be in the device 100 low frequency of other component or external equipment believe
Number interference, influence effect of the invention.
In view of the foregoing, as shown in Fig. 2, the device 100 can also include filter (for example, high-pass filter) 190.
Also, it is non-limiting as example, the filter 190 can (for example, via other devices and) be located at analog-digital converter 150 with
Between splitter 130, it is thus possible to by the filter 190 remove analog feedback signal in low-frequency disturbance, so as into
One step improves effect of the invention.
Optionally, the device further include:
Optical signal input, for inputting at least two light input signals；
Photoelectric converter, for carrying out photoelectric conversion processing to the light input signal, to generate the second analog input signal；
Combiner, for being combined processing to first analog input signal and second analog input signal, with life
At target simulation signal；
The splitter is specifically used for carrying out branch process to the target simulation signal, to generate output signal and analog feedback
Signal.
Specifically, DCMTS equipment is typically configured in HPA Hybrid Fiber Coaxial (HFC, Hybrid Fiber at present
Coaxial) network, that is, DCMTS equipment may need to receive and forward optical signal.
In view of the foregoing, as shown in Fig. 2, the light letter of input optical signal can also be configured in embodiments of the present invention
Number input terminal 195, and it is possible to photoelectric converter 197 be configured, thus, it is possible to which the optical signal inputted is changed into electric signal
(that is, second analog input signal), and it is possible to combiner 198 be configured, by second analog input signal and above-mentioned first mould
Quasi- input signal carries out and road processing, to generate target simulation signal.
In this case, above-mentioned splitter 130 is specifically used for carrying out branch process to target simulation signal, also, through high score
Road is handled and the analog feedback signal of generation still includes and each sub first analog signal in above-mentioned first analog input signal
Corresponding sub- feedback signal.
It should be noted that the second analog input signal and above-mentioned first analog input signal in the target simulation signal
Corresponding different frequency, that is, the second analog input signal and above-mentioned first analog input signal are shared by the way of frequency division multiplexing
System bandwidth, thus, which will not influence according to embodiments of the present invention to above-mentioned first simulation input
The power regulation of output signal corresponding to signal.
Optionally, which is community's communal TV aerial CATV signal.
Particularly, in embodiments of the present invention, second analog input signal can be community to the optical signal in other words
Communal TV aerial (CATV, Community Antenna Television) signal.
It should be understood that structure included by device 100 listed above and the function of each device are merely illustrative, this hair
It is bright to be not limited to this, for example, as shown in Fig. 2, can also be configured to that the power of the first analog input signal is adjusted
ATT#1, be adjusted for the power to the second analog input signal ATT#2, for the power to target simulation signal
The ATT#3 being adjusted or the amplifier 199 etc. for amplifying processing to the first mould input signal or target simulation signal.
Optionally, the signal generator and the controller are integrated in same device.
Specifically, in embodiments of the present invention, signal generator 110 and the controller can be completed by same device
160 function, also, it is non-limiting as example, which can be field programmable gate array (FPGA, Field
Programmable Gate Array), also, the function and structure of the FPGA can be similar to the prior art, here, in order to
It avoids repeating, description is omitted.
For CATV optical signal after photoelectric conversion module, the DOCSIS forward signal for becoming electric signal and FPGA output is each
(frequency is diverged to) is combined by combiner from after electric adjustable damping ATT#1, ATT#2, the signal after combining is by electricity
The main amplifier for entering output after the adjustable damping ATT#3 and adjustable EQ of electricity passes through (the main road decaying of 140 splitters in output end
1dB, branch decaying 40dB) feedback signal is extracted, low frequency then is rejected by high-pass filter, further across TUNER, is realized
The frequency locking of high-frequency signal and the effect moved to low frequency in 1.2GHz pass through number for specified further across the ADC of 200MHz
Be sent into FPGA after change and carry out power detection and calculating, it is accurate detect in forward band it is all by signal energy.It is worked
Journey is the level drop parameter of the output level of client's input requirements, EQ and analog and digital signal, the inspection of control system startup power
It surveys, if output is greater than the requirement of client, increases the attenuation of amplifier in ATT#3 (adjustable damping), to reduce
The output of complete machine, attenuation that is on the contrary then reducing amplifier in ATT#3, to improve the output of complete machine；The side of EQ adjustment
Method is similar, and control system carries out power detection to all channels of entire spectrum first, measures power spectrum from low to high,
Whether the level drop of detection highest frequency point and minimum frequency point meets the requirement of client, higher than the parameter for then reducing EQ1, lower than then
Improve the parameter of EQ1；The level drop of analog and digital signal is also similar, and control system carries out power to all channels of entire spectrum
The level drop situation of current digital signal and analog signal is measured in detection, and is combined and adjustment electricity the case where client's expectation
Adjust the attenuation of ATT#1 and ATT#2；Into after excessively a few wheel closed loop detections, adjustment, that is, it can reach the desired output result of client.
After control system completes the output constructed for the first time control, into validity period, detection cycle, such as 2 hours, Ke Yishi can be set
When detection output and client's desired value obtain difference, guarantee guarantee when the environmental factors such as temperature change in this way
Stable output.
More than, the device of the transmission signal of the embodiment of the present invention is described in detail in conjunction with Fig. 1 to Fig. 2, in the following, in conjunction with Fig. 3,
The method of the transmission signal for embodiment that the present invention will be described in detail.
Fig. 3 shows the schematic flow chart of the method 200 of the transmission signal of one embodiment of the invention, as shown in figure 3, should
Method 200 includes:
S210 generates at least two digital input signals；
S220 carries out digital-to-analogue conversion processing, to generate the first analog input signal, first mould to the digital input signals
Quasi- input signal includes at least two sub first analog input signals, at least two digital input signals and at least two son
First analog input signal corresponds, frequency diverse corresponding to each sub first analog input signal；
S230 carries out branch process to first analog input signal, to generate output signal and analog feedback signal,
In, which includes at least two sub- output signals, which includes at least two sub- analog feedback signals,
At least two sub- output signal and at least two sub first analog input signal correspond, at least two sub- analog feedbacks
Signal and at least two sub first analog input signal correspond, also, corresponding same sub first analog input signal
Sub- analog feedback signal and the power of sub- output signal have corresponding relationship；
S240 exports the output signal to outside；
S250 carries out analog-to-digital conversion process to the analog feedback signal, to generate digital feedback signal, digital feedback letter
It number include at least two sub-figure feedback signals, at least two sub-figures feedback signal and at least two submodule intend feedback letter
Number correspond；
S260 determines the power of at least two sub-figures feedback signal；
S270, according to the power of the first sub-figure feedback signal in at least two sub-figures feedback signal, adjusting should
The power of the first digital input signals at least two digital input signals, wherein the first sub-figure feedback signal with should
First digital input signals correspond to same sub first analog input signal.
Optionally, this method further include:
According to the power of at least two sub-figures feedback signal, equilibrium treatment is carried out to first analog input signal,
So that the power difference between each sub first analog input signal is in preset range.
Optionally, which is the signal that frequency is higher than the first preset value, this method further include:
According to the frequency of first analog input signal, frequency spectrum shift processing is carried out to the analog feedback signal, it should
Analog feedback signal is converted to the signal that frequency is lower than the second preset value.
Optionally, which is the signal that frequency is higher than the first preset value, this method further include:
The analog feedback signal is filtered, is lower than third preset value to remove frequency in the analog feedback signal
Signal.
Optionally, this method further include:
Input at least two light input signals；
Photoelectric conversion processing is carried out to the light input signal, to generate the second analog input signal；
Processing is combined to first analog input signal and second analog input signal, to generate target simulation letter
Number；And
Branch process is carried out to first analog input signal, comprising:
Branch process is carried out to the target simulation signal.
Optionally, which is community's communal TV aerial CATV signal.
Optionally, which is data over cable service interface specification DOCSIS forward signal.
Optionally, this method is applied to be distributed cable modem terminal system DCMTS equipment.
Each step in the method 200 of transmission signal according to an embodiment of the present invention is transmitted as shown in Fig. 1 or Fig. 2 respectively
Respective devices in the device 100 of signal execute, and here in order to avoid repeating, description is omitted.
The method of transmission signal according to an embodiment of the present invention, by being based at least two digital input signals generated
Generate the first analog signal, and by splitter by first analog signal be divided into output signal of the power with corresponding relationship and
Analog feedback signal can obtain at least two digital feedbacks letter by carrying out digital-to-analogue conversion processing to the analog feedback signal
Number, it, can be defeated to each number according to the power of each digital feedback signal by the power of each digital feedback signal of determination
The power for entering signal is adjusted, that is, in the case that the output signal includes multiple subsignals, can satisfy for different sub- letters
Number different output power requirement.
It should be understood that in various embodiments of the present invention, magnitude of the sequence numbers of the above procedures are not meant to execute suitable
Sequence it is successive, the execution of each process sequence should be determined by its function and internal logic, the implementation without coping with the embodiment of the present invention
Process constitutes any restriction.
Ability those of ordinary skill is it is to be appreciated that unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, it can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions actually with
Hardware or software mode execute, the specific application and design constraint depending on technical solution.Professional technician can
To use different methods to achieve the described function to each specific application, but this realization is it is not considered that beyond this
The range of invention.
The technical staff of affiliated neck can be understood that for convenience and simplicity of description, the system of foregoing description fills
The specific work process with unit is set, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit
It closes or communicates to connect, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
The technical staff for being familiar with this technology neck in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all cover
Within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (19)
1. a kind of device for transmitting signal, which is characterized in that described device includes:
Signal generator, for generating at least two digital input signals；
Digital analog converter, for carrying out digital-to-analogue conversion processing to the digital input signals, to generate the first analog input signal,
First analog input signal includes at least two sub first analog input signals, at least two digital input signals with
Described at least two sub first analog input signals correspond, frequency diverse corresponding to each sub first analog input signal；
Splitter, for carrying out branch process to first analog input signal, to generate output signal and analog feedback letter
Number, wherein the output signal includes at least two sub- output signals, and the analog feedback signal is quasi- including at least two submodules
Feedback signal, at least two sub- output signal and at least two sub first analog input signal correspond, at least
Two sub- analog feedback signals and at least two sub first analog input signals correspond, also, corresponding same sub the
The sub- analog feedback signal of one analog input signal and the power of sub- output signal have corresponding relationship；
Output end, for exporting the output signal to outside；
Analog-digital converter, it is described to generate digital feedback signal for carrying out analog-to-digital conversion process to the analog feedback signal
Digital feedback signal includes at least two sub-figure feedback signals, at least two sub-figures feedback signal and described at least two
A sub- analog feedback signal corresponds；
Controller, for determining the power of at least two sub-figures feedback signal, and according at least two sub-figure
It is defeated to control the signal generator adjusting at least two number for the power of the first sub-figure feedback signal in feedback signal
Enter the power of the first digital input signals in signal, wherein the first sub-figure feedback signal and first number are defeated
Enter signal and corresponds to same sub first analog input signal.
2. the apparatus according to claim 1, which is characterized in that described device further include:
Balanced device, for first analog input signal carry out equilibrium treatment so that each sub first analog input signal that
Power difference between this is in preset range；
The controller is also used to the power according at least two sub-figures feedback signal, controls the balanced device and carries out institute
State equilibrium treatment.
3. device according to claim 1 or 2, which is characterized in that first analog input signal is that frequency is higher than the
The signal of one preset value, described device further include:
Tuner carries out frequency spectrum shift processing for obtaining the analog feedback signal, and to the analog feedback signal, will
The analog feedback signal is converted to the signal that frequency is lower than the second preset value, and will be by the frequency spectrum shift treated mould
Intend feedback signal transmission to the analog-digital converter, wherein second preset value is less than first preset value；
The controller is also used to the frequency according to first analog input signal, controls the tuner and carries out the frequency spectrum
Move processing.
4. device according to claim 1 or 2, which is characterized in that first analog input signal is that frequency is higher than the
The signal of one preset value, described device further include:
Filter for obtaining the analog feedback signal from the splitter, and is filtered the analog feedback signal
Processing, to remove the signal that frequency in the analog feedback signal is lower than third preset value, and will be after the filtering processing
Analog feedback signal be transmitted to the analog-digital converter.
5. device according to claim 3, which is characterized in that first analog input signal is that frequency is higher than first in advance
If the signal of value, described device further include:
Filter for obtaining the analog feedback signal from the splitter, and is filtered the analog feedback signal
Processing, to remove the signal that frequency in the analog feedback signal is lower than third preset value, and will be after the filtering processing
Analog feedback signal be transmitted to the analog-digital converter or tuner.
6. according to claim 1, device described in any one of 2,5, which is characterized in that described device further include:
Optical signal input, for inputting at least two light input signals；
Photoelectric converter, for carrying out photoelectric conversion processing to the light input signal, to generate the second analog input signal；
Combiner, for being combined processing to first analog input signal and second analog input signal, with life
At target simulation signal；
The splitter is specifically used for carrying out branch process to the target simulation signal, to generate output signal and analog feedback
Signal.
7. device according to claim 6, which is characterized in that second analog input signal is community's public TV day
Linear system system CATV signal.
8. according to claim 1, device described in any one of 2,5,7, which is characterized in that first analog input signal is
Data over cable service interface specification DOCSIS forward signal.
9. according to claim 1, device described in any one of 2,5,7, which is characterized in that the signal generator is based on existing
The device of field programmable gate array FPGA.
10. according to claim 1, device described in any one of 2,5,7, which is characterized in that the signal generator with it is described
Controller is integrated in same device.
11. according to claim 1, device described in any one of 2,5,7, which is characterized in that described device is distributed cable
Modem terminal system DCMTS equipment.
12. a kind of method for transmitting signal, which is characterized in that the described method includes:
Generate at least two digital input signals；
Digital-to-analogue conversion processing is carried out to the digital input signals, to generate the first analog input signal, first simulation is defeated
Entering signal includes at least two sub first analog input signals, at least two digital input signals and at least two son
First analog input signal corresponds, frequency diverse corresponding to each sub first analog input signal；
Branch process is carried out to first analog input signal, to generate output signal and analog feedback signal, wherein described
Output signal includes at least two sub- output signals, and the analog feedback signal includes at least two sub- analog feedback signals, institute
It states at least two sub- output signals and at least two sub first analog input signal corresponds, at least two submodules are quasi- anti-
Feedback signal and at least two sub first analog input signal correspond, also, corresponding same sub first simulation input letter
Number sub- analog feedback signal and sub- output signal power have corresponding relationship；
The output signal is exported to outside；
Analog-to-digital conversion process is carried out to the analog feedback signal, to generate digital feedback signal, the digital feedback signal packet
At least two sub-figure feedback signals are included, at least two sub-figures feedback signal and at least two submodule intend feedback letter
Number correspond；
Determine the power of at least two sub-figures feedback signal；
According to the power of the first sub-figure feedback signal in at least two sub-figures feedback signal, described at least two are adjusted
The power of the first digital input signals in a digital input signals, wherein the first sub-figure feedback signal and described the
One digital input signals correspond to same sub first analog input signal.
13. according to the method for claim 12, which is characterized in that the method also includes:
According to the power of at least two sub-figures feedback signal, equilibrium treatment is carried out to first analog input signal,
So that the power difference between each sub first analog input signal is in preset range.
14. method according to claim 12 or 13, which is characterized in that first analog input signal is that frequency is higher than
The signal of first preset value, the method also includes:
According to the frequency of first analog input signal, frequency spectrum shift processing is carried out to the analog feedback signal, by institute
It states analog feedback signal and is converted to the signal that frequency is lower than the second preset value, it is default that second preset value is less than described first
Value.
15. method according to claim 12 or 13, which is characterized in that first analog input signal is that frequency is higher than
The signal of first preset value, before the progress analog-to-digital conversion process to the analog feedback signal, the method also includes:
The analog feedback signal is filtered, is lower than third preset value to remove frequency in the analog feedback signal
Signal.
16. method according to claim 12 or 13, which is characterized in that the method also includes:
Input at least two light input signals；
Photoelectric conversion processing is carried out to the light input signal, to generate the second analog input signal；
Processing is combined to first analog input signal and second analog input signal, to generate target simulation letter
Number；And
Branch process is carried out to first analog input signal, comprising:
Branch process is carried out to the target simulation signal.
17. according to the method for claim 16, which is characterized in that second analog input signal is community's public TV
Antenna system CATV signal.
18. method described in any one of 2,13,17 according to claim 1, which is characterized in that first analog input signal
For data over cable service interface specification DOCSIS forward signal.
19. method described in any one of 2,13,17 according to claim 1, which is characterized in that the method is applied to distribution
Cable Modem Termination System DCMTS equipment.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2015/091161 WO2017054149A1 (en) | 2015-09-30 | 2015-09-30 | Signal transmission apparatus and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107735968A CN107735968A (en) | 2018-02-23 |
| CN107735968B true CN107735968B (en) | 2019-11-29 |
Family
ID=58422535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580080729.7A Active CN107735968B (en) | 2015-09-30 | 2015-09-30 | The device and method for transmitting signal |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107735968B (en) |
| WO (1) | WO2017054149A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112054767B (en) * | 2020-09-07 | 2024-04-16 | 珠海格力电器股份有限公司 | Signal processing method, circuit, device, storage medium and processor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202551096U (en) * | 2012-05-16 | 2012-11-21 | 京信通信系统（中国）有限公司 | Signal emitter |
| CN202615260U (en) * | 2012-03-30 | 2012-12-19 | 上海拜安实业有限公司 | Circuit structure capable of enabling output power to be adjusted and controlled automatically |
| CN203289449U (en) * | 2013-06-06 | 2013-11-13 | 温州大学 | Analog/digital modulation-demodulation optical fiber communication simple system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102017553B (en) * | 2006-12-26 | 2014-10-15 | 大力系统有限公司 | Method and system for baseband predistortion linearization in multi-channel wideband communication systems |
| KR101118919B1 (en) * | 2009-07-27 | 2012-02-27 | 주식회사 에이스테크놀로지 | Base station antenna device with built-in transmitting and receiving module |
| US8351877B2 (en) * | 2010-12-21 | 2013-01-08 | Dali Systems Co. Ltfd. | Multi-band wideband power amplifier digital predistorition system and method |
-
2015
- 2015-09-30 CN CN201580080729.7A patent/CN107735968B/en active Active
- 2015-09-30 WO PCT/CN2015/091161 patent/WO2017054149A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202615260U (en) * | 2012-03-30 | 2012-12-19 | 上海拜安实业有限公司 | Circuit structure capable of enabling output power to be adjusted and controlled automatically |
| CN202551096U (en) * | 2012-05-16 | 2012-11-21 | 京信通信系统（中国）有限公司 | Signal emitter |
| CN203289449U (en) * | 2013-06-06 | 2013-11-13 | 温州大学 | Analog/digital modulation-demodulation optical fiber communication simple system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017054149A1 (en) | 2017-04-06 |
| CN107735968A (en) | 2018-02-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8848110B2 (en) | Mixed-mode receiver circuit including digital gain control | |
| US20160020944A1 (en) | Reconfigurable Device For Processing Signals | |
| US20180227009A1 (en) | Transmit energy leakage control in a receiver | |
| CN107390026B (en) | A kind of digital spectrum analysis method of variable scan width | |
| US10531151B2 (en) | Bidirectional amplifier or node supporting out-of-band signaling | |
| CN107735968B (en) | The device and method for transmitting signal | |
| CN101238650B (en) | Relay transmitter apparatus of digital TV broadcast signal | |
| CN104901754B (en) | Channel monitoring system based on channelization frequency spectrum perception | |
| CN107733465B (en) | Super-bandwidth signal processing method and device | |
| WO2018072750A1 (en) | Spectral extension in a cable network | |
| CN103152584B (en) | Method and system of analog video signal gain control | |
| CN105471471A (en) | Radio-frequency signal system, radio frequency signal source and frequency expansion device control method | |
| US20150256215A1 (en) | Signal Conditioner for Bi-Directional Radio Frequency Signals in a Telecommunications Network | |
| US20160020931A1 (en) | Method and apparatus for digitization of broadband analog signals | |
| CN113746570B (en) | Test system and test method thereof | |
| CN110462731A (en) | A kind of novel equalization parameter for voice applications | |
| IL46827A (en) | Wired broadcasting systems | |
| CN101874355A (en) | Device for receiving a RF signal with loop-through output and method for looping a RF input signal through a device for receiving RF signals | |
| CN108809302B (en) | A kind of phase-locked loop frequency integrator and control method for frequency | |
| Pawłowski et al. | Software defined radio-design and implementation of complete platform | |
| US9819389B2 (en) | Single path signal conditioner for bi-directional radio frequency signals in a telecommunications network | |
| US20130188961A1 (en) | Hybrid system for distributing broadband wireless signals indoors | |
| CN105281793B (en) | RF receivers | |
| CN106792137A (en) | Set Top Box radio frequency modulation processing method and device | |
| CN109286422A (en) | A kind of method of intelligence separating device and the noise coefficient for adjusting radio frequency link |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |