CN105846848A - Signal transmitting and receiving circuit and signal transmitting and receiving method - Google Patents
Signal transmitting and receiving circuit and signal transmitting and receiving method Download PDFInfo
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- CN105846848A CN105846848A CN201510019646.9A CN201510019646A CN105846848A CN 105846848 A CN105846848 A CN 105846848A CN 201510019646 A CN201510019646 A CN 201510019646A CN 105846848 A CN105846848 A CN 105846848A
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Abstract
The invention provides a signal transmitting and receiving circuit and a signal transmitting and receiving method. The signal transmitting and receiving circuit comprises a signal transmitting and receiving terminal, a band elimination filter, a first band-pass filter and a second band-pass filter, wherein the signal transmitting and receiving terminal is used for transmitting and receiving one of a first multichannel signal and a second multichannel signal; the band elimination filter is used for blocking signals between a first frequency and a second frequency in the first multichannel signal and the second multichannel signal; the first band-pass filter is used for making signals between a third frequency and a fourth frequency in the signals output by the band elimination filter pass; and the second band-pass filter is used for making signals between a fifth frequency and a sixth frequency in the first multichannel signal and the second multichannel signal pass.
Description
Technical field
The present invention is about a kind of signal transmitting and receiving circuit；Especially in regard to a kind of signal receiving and dispatching multi-channel signal
Transmission circuit.
Background technology
In recent years, to become increasingly high-order and function more and more diversified for various electronic installations.Citing comes
Say, be similar to the handheld apparatus such as mobile phone or tablet PC such as and can possess telecommunication path ability, transmitting-receiving electricity
Sub-mail, maintenance community network, address book management, media play and other function miscellaneous
With application.It addition, other such as its specification being required such as server, network sharing device is more and more higher.
Wherein, the volume of electronic installation is also a problem critically important in specification.Due to volume specification
Requirement, how electronic installation reduces the quantity of interface, but can possess certain functional requirement, then become
In order to another needs the important topic of solution.It addition, as minimum electronic building brick complete circuit with
Cost-effective is also considerable problem in current industry with volume.
Summary of the invention
Signal transmitting and receiving circuit provided by the present invention can receive and dispatch the signal transmitting and receiving circuit of multi-channel signal.
The present invention provides a kind of signal transmitting and receiving circuit.Signal transmitting and receiving circuit include a signal transmitting and receiving terminal, one
Band elimination filter, one first band filter and one second band filter.Signal transmitting and receiving terminal in order to
Receive and dispatch in one first multi-channel signal and one second multi-channel signal, and will received and dispatched
One multi-channel signal and the second multi-channel signal are sent to a primary nodal point.It is defeated that band elimination filter has one
Enter end and be coupled to primary nodal point and an outfan, in order to stop the first multi-channel signal and more than second letters
Signal between a first frequency and a second frequency in road signal so that the first multi-channel signal
And second in multi-channel signal between a first frequency and a second frequency beyond signal lead to
Cross.First band filter has an input and is coupled to outfan and an output of band elimination filter
End, in order to stop in the signal that band elimination filter is exported between one the 3rd frequency and one the 4th frequency it
Signal beyond between, to cause in the signal that band elimination filter exported between the 3rd frequency and the 4th frequency
The signal of rate passes through.Second band filter has an input and is coupled to primary nodal point, and an output
End, in order to stop in the first multi-channel signal and the second multi-channel signal between one the 5th frequency and
Signal beyond between 6th frequency, to cause the first multi-channel signal and the second multi-channel signal intermediary
Signal in the 5th frequency and the 6th frequency passes through.
In one embodiment, first frequency and the 5th frequency are equal, and second frequency and the 6th frequency phase
Deng.It addition, second frequency is less than the 4th frequency more than first frequency, the 3rd frequency, first frequency is more than
3rd frequency, and second frequency is less than the 4th frequency.
It should be noted that the first multi-channel signal includes one first signal and a secondary signal, and
Second multi-channel signal includes the first signal and one the 3rd signal.The frequency band of the first signal is positioned at the first frequency
Between rate and second frequency, the frequency band of secondary signal between first frequency and the 3rd frequency, and
And the 3rd the frequency band of signal between second frequency and the 4th frequency.
The present invention separately provides a kind of signal transmit-receive method.Signal transmit-receive method includes: by a signal transmitting and receiving
In terminal transmitting-receiving one first multi-channel signal and one second multi-channel signal one；By a band resistance filter
Ripple device stops in the first multi-channel signal and the second multi-channel signal between a first frequency and one
Signal between two frequencies so that between one first in the first multi-channel signal and the second multi-channel signal
Signal beyond between frequency and a second frequency passes through；By one first passband filter blocks band resistance
In the signal that wave filter is exported between one the 3rd frequency and one the 4th frequency beyond signal, with
The signal between the 3rd frequency and the 4th frequency is caused in the signal that band elimination filter exported to pass through；With
And by one second passband filter blocks the first multi-channel signal and the second multi-channel signal between
Signal beyond between one the 5th frequency and one the 6th frequency, to cause the first multi-channel signal and
In two multi-channel signals, the signal between the 5th frequency and the 6th frequency passes through.
The present invention also provides a kind of signal transmitting and receiving circuit.This signal transmitting and receiving circuit includes a signal transmitting and receiving end
Son, one first choke circuit, one first band filter, one the 3rd choke circuit, the one second logical filter of band
Ripple device, one the 4th choke circuit and one the 3rd band filter.Signal transmitting and receiving terminal is in order to receive and dispatch one
One of one multi-channel signal and one second multi-channel signal, and this first multichannel that will be received and dispatched
Signal and this second multi-channel signal are sent to a primary nodal point, and wherein this first multi-channel signal includes
One first signal and a secondary signal, and this second multi-channel signal includes this first signal and one
3rd signal.First choke circuit is coupled to this signal transmitting and receiving terminal, in order to stop less than this secondary signal
And the frequency band of this first signal and the signal of following frequency thereof so that the frequency band of the 3rd signal and
The signal of above frequency passes through.First band filter is coupled to this first choke circuit, in order to stop
Except the signal of frequency band of the 3rd signal in the signal that this first choke circuit is exported so that the 3rd
Signal passes through.Second choke circuit is coupled to this signal transmitting and receiving terminal, in order to stop the frequency of the 3rd signal
Band and the signal of above frequency thereof so that this first signal and the frequency band of this secondary signal and following
The signal of frequency pass through.3rd choke circuit is coupled to this second choke circuit, in order to stop this first
The frequency band of signal and the signal of above frequency thereof so that the frequency band of this secondary signal and following frequency thereof
Signal pass through.Second band filter is coupled to the 3rd choke circuit, in order to stop the 3rd chokes
Signal in addition to the frequency band of this secondary signal in the signal that circuit is exported so that this secondary signal
The signal of frequency band passes through.4th choke circuit is coupled to this second choke circuit, in order to stop that this second is gripped
The frequency band of this secondary signal in the signal that current circuit is exported and the signal of following frequency thereof so that should
The frequency band of the first signal and the signal of above frequency thereof pass through.3rd band filter is coupled to the 4th
Choke circuit, in order to stop in the signal that the 4th choke circuit is exported in addition to this first signal
Signal so that the signal of the frequency band of this first signal passes through.
Accompanying drawing explanation
Fig. 1 is the block chart of a kind of embodiment of the signal transmitting and receiving circuit of the present invention.
Fig. 2 is the schematic diagram of the frequency band of the signal of the present invention.
Fig. 3 is the block chart of the another kind of embodiment of the signal transmitting and receiving circuit of the present invention.
Fig. 4 is the schematic diagram of the frequency band of the signal of the present invention.
Fig. 5 is the flow chart of a kind of embodiment of the signal transmit-receive method of the present invention.
Description of reference numerals
100,200 signal transmitting and receiving circuit
102,202 signal transmitting and receiving terminal
104,108,110,116 choke circuit
106,112,118,206,208 band filter
204 band elimination filters
SM1, SM2 multi-channel signal
S1, S2, S3 signal
N1 primary nodal point
F1, f2, f3, f4 frequency
S400～S406 step
Detailed description of the invention
The device of various embodiments of the invention discussed more fully below and using method.But it is noticeable
It is that the feasible inventive concept of many provided by the present invention may be implemented in various particular range.These are special
Determine embodiment to be only used for illustrating assembly of the invention and using method, but non-for limiting the present invention's
Scope.
Fig. 1 is the block chart of a kind of embodiment of the signal transmitting and receiving circuit of the present invention.In the present embodiment,
Signal transmitting and receiving circuit 100 include a signal transmitting and receiving terminal 102, choke circuit 104 (Choke Circuit),
Band filter 106, choke circuit 108, choke circuit 110, band filter 112, choke circuit
116, band filter 118 and switching device 114, wherein choke circuit is by inductance and electric capacity
The circuit formed.Signal transmitting and receiving terminal 100 is in order to receive and dispatch one first from a signal transmitting and receiving end (non-icon)
Multi-channel signal SM1 or one second multi-channel signal SM2, wherein signal transmitting and receiving terminal 100 can be
One socket, and signal transmitting and receiving end can be a plug, but the invention is not restricted to this.In other embodiments,
Signal transmitting and receiving terminal 100 and signal transmitting and receiving end can be the pin of chip.It should be noted that signal is received
The first multi-channel signal SM1 that son 100 of making a start is received and dispatched includes one first signal S1 and one second letter
Number S2, the second multi-channel signal SM2 include the first signal S1 and one the 3rd signal S3, Qi Zhong
One signal S1, secondary signal S2 and the 3rd signal S3 have different frequency bands.Signal transmitting and receiving circuit
100 by choke circuit 104, band filter 106, choke circuit 108, choke circuit 110, band
Bandpass filter 112, choke circuit 116 and band filter 118, separate the first multi-channel signal SM1
In the first signal S1 and secondary signal S2 and separate first in the second multi-channel signal SM2
Signal S1 and the 3rd signal S3.It addition, switching device 114 is in order to according to the multichannel letter received and dispatched
Number kind, be selectively coupled to band filter 106 or band filter 112, with by signal
It is sent to a specific pin.For example, the first multi-channel signal is received and dispatched when signal transmitting and receiving terminal 102
During SM1, switching device 114 is coupled to band filter 112, the secondary signal captured with transmitting-receiving
S2.When signal transmitting and receiving terminal 102 receives and dispatches the second multi-channel signal SM2, switching device 114 coupling
It is connected to band filter 106, the 3rd signal S3 captured with transmitting-receiving.It addition, specific pin can be one
Controller, a signal processor or the pin of a signal processing circuit, in order to receive and dispatch secondary signal S2
And the 3rd signal S3.
Specifically, the frequency band of the first signal S1 between secondary signal S2 and the 3rd signal S3,
And the frequency band of the 3rd signal S3 is higher than the frequency band of secondary signal S2, as shown in Figure 2.Choke circuit
The letter that 104 is the frequency in order to stop below the frequency band less than secondary signal S2 and the first signal S1
Number, only make the signal of the frequency of more than the frequency band of the 3rd signal S3 pass through.Band filter 106 is then
It is that the signal of the frequency band only causing the 3rd signal S3 passes through.Choke circuit 108 is in order to stop the 3rd signal
The frequency band of S3 and the signal of above frequency thereof so that the first signal S1 and the frequency of secondary signal S2
The signal of band and following frequency thereof passes through.Choke circuit 110 is in order to stop the frequency band of the first signal S1
And the signal of above frequency so that the signal of the frequency below the frequency band of secondary signal S2 passes through.
Band filter 112 is then that the signal of the frequency band only causing secondary signal S2 passes through.Choke circuit 116
In order to stop frequency band and the signal of following frequency thereof of secondary signal S2, only make the first signal S1
Frequency band and the signal of above frequency pass through.Band filter 118 is then only to cause the first signal
The signal of the frequency band of S1 passes through.Via above-mentioned process, choke circuit 104, band filter 106,
The logical filter of choke circuit 108, choke circuit 110, band filter 112, choke circuit 116 and band
Ripple device 118, the first signal S1 and secondary signal S2 in separable first multi-channel signal SM1
And separate the first signal S1 in the second multi-channel signal SM2 and the 3rd signal S3.
In one embodiment, the first signal S1 meet local area network interface (Local Area Network,
LAN) signal of specification, its frequency band is 1125～1225MHz, but the invention is not restricted to this.Second letter
Number S2 meets the multimedia coaxial cable alliance 1.1 of Wide Area Network (Wide Area Network, WAN)
The signal of (Multimedia over Coax Alliance 1.1), its frequency band is 975～1025MHz, but this
Invention is not limited to this.3rd signal S3 is the multimedia coaxial cable alliance 2.0 meeting Wide Area Network
The signal of (Multimedia over Coax Alliance 2.0), its frequency band is 1350～1675MHz, but this
Invention is not limited to this.
As it appears from the above, the signal transmitting and receiving circuit 100 that the present invention provides can receive and dispatch two kinds of multi-channel signal SM1
And SM2, and by 104,108,110,116 and three bandpass filterings of four choke circuits
First signal S2, secondary signal S2 and the 3rd signal S3 are captured by device 106,112,118 respectively
Out.But, the assembly required for signal transmitting and receiving circuit 100 all can produce in the fabrication process cost with
And area, and it once cannot the most successfully measure three signals (because outfan in circuit test simultaneously
At the end of switching device 114, it is only capable of selection and is coupled to secondary signal S2 and the 3rd signal S3
One of).In view of this, the present invention separately provides a kind of signal transmitting and receiving circuit 200, as shown in Figure 3.Value
Obtain it is noted that generally the obstruct mode intercepting frequency can be designed in short circuit or hold by band filter
In the impedance on road so that unwanted frequency can be transmitted to ground connection to reach the effect of suppression, or sees
Unwanted frequency is intercepted to open-circuit impedance.Therefore, three band filters parallel connections and do not grip
In the case of current circuit, when another two band filter will be passed through by three band filters
The assembly (rejection) of obstruct frequency of frequency band when being made in short-circuit impedance, two other band filter
By frequency band signal can be allowed to run off because seeing short-circuit impedance and reduction, cause overall permanence to drop
Low.Therefore, other must be seen by the obstruct mode of the obstruct frequency of each band filter by frequency band
To impedance be made in open-circuit impedance, other just will not be made to be declined by frequency bandwidth characteristics.And choke circuit can
Making the impedance seen mutually is open-circuit impedance, therefore the signal transmitting and receiving circuit 100 shown in Fig. 1 needs at band
Before bandpass filter 106,112,118, choke circuit is set.
Fig. 3 is the block chart of the another kind of embodiment of the signal transmitting and receiving circuit of the present invention.Signal transmitting and receiving circuit
200 include signal transmitting and receiving terminal 202, band elimination filter 204 (band-rejection filter), a band
Bandpass filter 206 (band-pass filter) and a band filter 208.Signal transmitting and receiving terminal 202 is used
To receive and dispatch one of the first multi-channel signal SM1 and the second multi-channel signal SM2, and will be received
The the first multi-channel signal SM1 and the second multi-channel signal SM2 that send out are sent to a primary nodal point N1.
Band elimination filter 204 has an input and is coupled to primary nodal point N1 and an outfan, in order to stop
Between a first frequency and one in first multi-channel signal SM1 and the second multi-channel signal SM2
Signal between two frequencies so that in the first multi-channel signal SM1 and the second multi-channel signal SM2
Signal beyond between a first frequency and a second frequency passes through.Band filter 206 has
One input is coupled to outfan and an outfan of band elimination filter 204, in order to stop bandreject filtering
In the signal that device 204 is exported between one the 3rd frequency and one the 4th frequency beyond signal, with
Cause in the first multi-channel signal SM1 and the second multi-channel signal SM2 between the 3rd frequency and
The signal of four frequencies passes through.Band filter 208 has an input and is coupled to primary nodal point N1, with
And an outfan, in order to stop the first multi-channel signal SM1 and the second multi-channel signal SM2 intermediary
Signal beyond between one the 5th frequency and one the 6th frequency, to cause the first multi-channel signal SM1
And second signal between the 5th frequency and the 6th frequency in multi-channel signal SM2 pass through.
It should be noted that in circuit design, first frequency and the 5th frequency are equal, and the second frequency
Rate is equal with the 6th frequency.It addition, second frequency is less than the 4th frequency more than first frequency, the 3rd frequency,
First frequency is more than the 3rd frequency, and second frequency is less than the 4th frequency.
Specifically, as shown in Figure 4, the frequency band of the first signal S1 is positioned at first frequency f1 and second
Between frequency f2, the frequency band of secondary signal S2 between first frequency f1 and the 3rd frequency f3,
And the frequency band of the 3rd signal S3 is between second frequency f2 and the 4th frequency f4.Therefore, by
Above circuit design, band elimination filter 204 can stop that frequency band is positioned at first frequency f1 and second frequency
The first signal S1 between rate f2, only make frequency band be positioned at first frequency f1 and second frequency f2 with
Outer signal passes through.Band filter 206 then stops between one the 3rd frequency f3 and one the 4th frequency
Signal beyond between f4, with output band between the 3rd frequency f3 and first frequency f1
Binary signal S2 and frequency band are between second frequency f2 and the 3rd signal S3 of the 4th frequency f4.
For example, the first signal S1 meets local area network interface (Local Area Network, LAN)
The signal of specification, its frequency band is 1125～1225MHz, but the invention is not restricted to this；Secondary signal S2
Meet the multimedia coaxial cable alliance 1.1 of Wide Area Network (Wide Area Network, WAN)
The signal of (Multimedia over Coax Alliance 1.1), its frequency band is 975～1025MHz；3rd
Signal S3 is multimedia coaxial cable alliance 2.0 (the Multimedia over Coax meeting Wide Area Network
Alliance 2.0) signal, its frequency band is 1350～1675MHz, but the invention is not restricted to this.At this
In embodiment, first frequency may be designed as 1125MHz, second frequency may be designed as 1225MHz,
Three frequencies may be designed as 975MHz and the 4th frequency may be designed as 1675MHz.
As it has been described above, signal transmitting and receiving circuit 200 can be only by a band elimination filter 204 and two bands
Bandpass filter 206,208 can be by the first signal S1 and secondary signal S2 by the first multi-channel signal
SM1 captures out respectively, and by the first signal S1 and the 3rd signal S3 respectively more than second
Channel signal captures out respectively.Furthermore, signal transmitting and receiving circuit 200 is by above-mentioned circuit design also
Eliminate switching device 114.It addition, the band of the first signal S1 can be hindered (rejection) by band elimination filter 204
Accomplishing open-circuit impedance, therefore signal transmitting and receiving circuit 200 need not the choke circuit shown in Fig. 1, i.e. up to
Characteristic required for one-tenth.
Fig. 5 is the flow chart of a kind of embodiment of the signal transmit-receive method of the present invention.Signal transmit-receive method is fitted
For the signal transmitting and receiving circuit 200 shown in Fig. 3.Flow process starts from step S400.
In step S400, by signal transmitting and receiving terminal 202 receive and dispatch the first multi-channel signal SM1 and
One of second multi-channel signal SM2, and by the first multi-channel signal SM1 received and dispatched and
Two multi-channel signal SM2 are sent to a primary nodal point N1.
Then, in step S402, the first multi-channel signal SM1 is stopped by band elimination filter 204
And second signal between a first frequency and a second frequency in multi-channel signal SM2, make
Obtain in the first multi-channel signal SM1 and the second multi-channel signal SM2 between a first frequency and
Signal beyond between second frequency passes through.
Then, in step s 404, stop that band elimination filter 204 institute is defeated by band filter 206
In the signal gone out between one the 3rd frequency and one the 4th frequency beyond signal, with cause band resistance filter
In the signal that ripple device 204 is exported, the signal between the 3rd frequency and the 4th frequency passes through, to export
Binary signal S2 or the 3rd signal S3.
Then, in step S406, the first multi-channel signal SM1 is stopped by band filter 208
And second in multi-channel signal SM2 between first frequency and second frequency beyond signal,
To cause the first multi-channel signal SM1 and the second multi-channel signal SM2 midband between first frequency
And the first signal S1 of second frequency passes through.
From the foregoing, router provided by the present invention and resource allocation methods can be according to network services
State and condition, dynamically the network service of electronic installation is distributed to different Wide Area Networks and connects
Mouthful.In the prior art, the setting that router only can be carried out according to a set rule or user
Distribution network service, but cannot be according to the state of the most performed network service and condition distribution.
The method of the present invention, or specific kenel or its part, can exist with the kenel of program code.Journey
Sequence code can be stored in tangible media, such as floppy disk, disc, hard disk or other machine readable any
Take (such as embodied on computer readable) and store media, also or be not limited to the computer program of external form, its
In, when program code is by machine, and when loading such as computer and perform, this machine becomes to participate in this
Bright device.Program code also can transmit media by some, such as electric wire or cable, optical fiber or appoint
What transmission kenel transmits, and wherein, when program code is by machine, such as computer transmitting-receiving, loads and holds
During row, this machine becomes to participate in assembly of the invention.When in general service processing unit implementation,
Program code combines processing unit provides an operation to be similar to apply the unique apparatus of particular logic circuit.
The foregoing is only presently preferred embodiments of the present invention, it is impossible to limit, with this, the scope that the present invention implements,
The most all simple equivalence changes made according to the claims in the present invention and invention description content and modification, the most still
Remain within the scope of the patent.Additionally any embodiment or the claim of the present invention is not necessary to realize
Disclosed whole purposes or advantage or feature.Additionally, summary part and title are intended merely to auxiliary
Help patent document search to be used, be not used for limiting the interest field of the present invention.
Claims (12)
1. a signal transmitting and receiving circuit, including:
One signal transmitting and receiving terminal, in order to receive and dispatch in one first multi-channel signal and one second multi-channel signal
One, and this first multi-channel signal received and dispatched and this second multi-channel signal are sent to one
Primary nodal point；
One band elimination filter, has an input and is coupled to this primary nodal point and an outfan, in order to hinder
Keep off in this first multi-channel signal and this second multi-channel signal between a first frequency and one second
Signal between frequency so that between one in this first multi-channel signal and this second multi-channel signal
Signal beyond between one frequency and a second frequency passes through；
One first band filter, has an input and is coupled to the outfan and of this band elimination filter
Outfan, in order to stop in the signal that band elimination filter is exported between one the 3rd frequency and one the 4th frequency
Signal beyond between rate, causing in the signal that band elimination filter exported between the 3rd frequency and
The signal of the 4th frequency passes through；And
One second band filter, has an input and is coupled to this primary nodal point, and an outfan,
In order to stopping in this first multi-channel signal and this second multi-channel signal between one the 5th frequency and
Signal beyond between one the 6th frequency, to cause this first multi-channel signal and this second multichannel letter
In number, the signal between the 5th frequency and the 6th frequency passes through.
Signal transmitting and receiving circuit the most according to claim 1, wherein this first frequency and the 5th frequency phase
Deng, and this second frequency is equal with the 6th frequency.
Signal transmitting and receiving circuit the most according to claim 2, wherein this second frequency is more than this first frequency,
4th frequency is more than the 3rd frequency, and this first frequency is more than the 3rd frequency, and this second frequency
Less than the 4th frequency.
Signal transmitting and receiving circuit the most according to claim 3, wherein this first multi-channel signal includes one
One signal and a secondary signal, and this second multi-channel signal includes this first signal and the 3rd
Signal.
Signal transmitting and receiving circuit the most according to claim 4, wherein the frequency band of this first signal be positioned at this
Between one frequency and this second frequency, the frequency band of this secondary signal is positioned at this first frequency and the 3rd
Between frequency, and the frequency band of the 3rd signal is between this second frequency and the 4th frequency.
6. a signal transmitting and receiving circuit, including:
One signal transmitting and receiving terminal, in order to receive and dispatch in one first multi-channel signal and one second multi-channel signal
One, and this first multi-channel signal received and dispatched and this second multi-channel signal are sent to one
Primary nodal point, wherein this first multi-channel signal includes one first signal and a secondary signal, and should
Second multi-channel signal includes this first signal and one the 3rd signal；
One band elimination filter, has an input and is coupled to this primary nodal point and an outfan, in order to hinder
Keep off this first signal so that this secondary signal and the 3rd signal pass through；
One first band filter, has an input and is coupled to the outfan and of this band elimination filter
Outfan, in order to stop in the signal that band elimination filter is exported except this first signal, this secondary signal
And the signal that the 3rd beyond signal, to cause this secondary signal and the 3rd signal to be passed through；And
One second band filter, has an input and is coupled to this primary nodal point, and an outfan,
In order to stop the signal beyond this first signal, to cause this first signal to pass through.
Signal transmitting and receiving circuit the most according to claim 6, wherein the frequency band of this first signal is positioned at one
Between one frequency and a second frequency, this secondary signal frequency band be positioned at a first frequency and one
Between three frequencies, and the frequency band of the 3rd signal is between this second frequency and one the 4th frequency.
Signal transmitting and receiving circuit the most according to claim 6, wherein this second frequency is more than this first frequency,
4th frequency is more than the 3rd frequency, and this first frequency is more than the 3rd frequency, and this second frequency
Less than the 4th frequency.
Signal transmitting and receiving circuit the most according to claim 6, wherein this first signal is to meet LAN
The signal of interface specification, this secondary signal is to meet the multimedia coaxial cable alliance 1.1 of Wide Area Network
Signal, and the 3rd signal is the signal of the multimedia coaxial cable alliance 2.0 meeting Wide Area Network.
10. a signal transmitting and receiving circuit, including:
One signal transmitting and receiving terminal, in order to receive and dispatch in one first multi-channel signal and one second multi-channel signal
One, and this first multi-channel signal received and dispatched and this second multi-channel signal are sent to one
Primary nodal point, wherein this first multi-channel signal includes one first signal and a secondary signal, and should
Second multi-channel signal includes this first signal and one the 3rd signal；
One first choke circuit, is coupled to this signal transmitting and receiving terminal, in order to stop less than this secondary signal with
And the frequency band of this first signal and the signal of following frequency thereof so that the frequency band of the 3rd signal and with
On the signal of frequency pass through；
One first band filter, is coupled to this first choke circuit, in order to stop this first choke circuit
Except the signal of frequency band of the 3rd signal in the signal exported so that the 3rd signal passes through；
One second choke circuit, is coupled to this signal transmitting and receiving terminal, in order to stop the frequency band of the 3rd signal
And the signal of above frequency so that this first signal and the frequency band of this secondary signal and following
The signal of frequency passes through；
One the 3rd choke circuit, is coupled to this second choke circuit, in order to stop the frequency band of this first signal
And the signal of above frequency so that the frequency band of this secondary signal and the signal of following frequency thereof lead to
Cross；
One second band filter, is coupled to the 3rd choke circuit, in order to stop the 3rd choke circuit
Signal in addition to the frequency band of this secondary signal in the signal exported so that the frequency band of this secondary signal
Signal pass through；
One the 4th choke circuit, is coupled to this second choke circuit, in order to stop this second choke circuit institute
The frequency band of this secondary signal in the signal of output and the signal of following frequency thereof so that this first signal
Frequency band and the signal of above frequency pass through；And
One the 3rd band filter, is coupled to the 4th choke circuit, in order to stop the 4th choke circuit
Signal in addition to this first signal in the signal exported so that the signal of the frequency band of this first signal
Pass through.
11. signal transmitting and receiving circuit according to claim 10, wherein the frequency band of this first signal is positioned at one
Between first frequency and a second frequency, the frequency band of this secondary signal is positioned at a first frequency and one
Between three frequencies, and the frequency band of the 3rd signal is between this second frequency and one the 4th frequency.
12. signal transmitting and receiving circuit according to claim 10, wherein this second frequency is more than this first frequency
Rate, the 4th frequency be more than the 3rd frequency, this first frequency be more than the 3rd frequency, and this second
Frequency is less than the 4th frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510019646.9A CN105846848A (en) | 2015-01-15 | 2015-01-15 | Signal transmitting and receiving circuit and signal transmitting and receiving method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510019646.9A CN105846848A (en) | 2015-01-15 | 2015-01-15 | Signal transmitting and receiving circuit and signal transmitting and receiving method |
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| CN105846848A true CN105846848A (en) | 2016-08-10 |
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| CN201510019646.9A Pending CN105846848A (en) | 2015-01-15 | 2015-01-15 | Signal transmitting and receiving circuit and signal transmitting and receiving method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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Application publication date: 20160810 |