CN106487438B - Satellite-signal switching device - Google Patents
Satellite-signal switching device Download PDFInfo
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- CN106487438B CN106487438B CN201510522043.0A CN201510522043A CN106487438B CN 106487438 B CN106487438 B CN 106487438B CN 201510522043 A CN201510522043 A CN 201510522043A CN 106487438 B CN106487438 B CN 106487438B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18513—Transmission in a satellite or space-based system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
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Abstract
A kind of satellite-signal switching device, including one first switching circuit, one second switching circuit and a controller.First switching circuit receives 4 groups of custom low noise frequency demultiplier (Low Noise Block converter, call LNB in the following text) signal, selected one of them to export one first tradition LNB output signal from above-mentioned 4 groups of tradition LNB signal according to an analog control signal.Second switching circuit includes an output end, second switching circuit couples above-mentioned first switching circuit, 2 groups of broadband LNB signals and above-mentioned first tradition LNB output signal are received, receives a digital switch-over control signal to select one of them in one first switching output signal of above-mentioned output end output from above-mentioned 2 groups of broadbands LNB signal and above-mentioned first tradition LNB output signal.The controller couples above-mentioned second switching circuit, controls signal according to a LNB and generates above-mentioned digital switch-over control signal and analog control signal.
Description
Technical field
The present invention relates to direct broadcasting satellites, more particularly to the satellite-signal switching device suitable for direct broadcasting satellite.
Background technique
The global satellite live broadcast system nearly more than ten years, which have been widely used in, receives TV and broadcast program.Payment satellite television
Service flourishes other than the coverage area of broadcasting satellite is wide and hd-tv content is increasingly weeded out the old and bring forth the new, mainly
Be exactly the low price of satellite receiving system (LNB, Dish Antenna, Set-Top Box), allow user acceptance greatly
It improves.Wherein, low noise frequency reducer is a part important in satellite receiving system.
Using custom low noise frequency demultiplier, (Low Noise Block converter, is called in the following text existing direct satellite direct broadcast system
LNB) (Legacy LNB) or broadband LNB, control mode is different from output LNB signal can not be mixed, and user must
It must use suitable tradition or broadband LNB that could play tradition or broadband satellite live signal.
Therefore a kind of tradition including satellite-signal switching device/broadband LNB is needed, allows more than one user according to more
A tradition exports the program that rating is different simultaneously with broadband LNB's.
Summary of the invention
Based on above-mentioned purpose, the invention discloses a kind of satellite-signal switching devices, including one first switching circuit, one
Two switching circuits and a controller.First switching circuit receives 4 groups of custom low noise frequency demultiplier (Low Noise Block
Converter calls LNB in the following text) signal, selected from above-mentioned 4 groups of tradition LNB signal according to an analog control signal one of them with
Export one first tradition LNB output signal simulation control signal.Second switching circuit includes an output end, the second switching electricity
Road couples above-mentioned first switching circuit, receives 2 groups of broadband LNB signals and above-mentioned first tradition LNB output signal, receives a number
Word switch-over control signal with from above-mentioned 2 groups of broadbands LNB signal and above-mentioned first tradition LNB output signal select one of them with
In one first switching output signal of above-mentioned output end output.Controller couples above-mentioned second switching circuit, is controlled and is believed according to a LNB
Number generate above-mentioned digital switch-over control signal.
The invention also discloses a kind of satellite-signal switching device, including one first switching circuit, one second switching circuit,
An and controller.Above-mentioned first switching circuit receives 4 groups of custom low noise frequency demultiplier (Low Noise Block
Converter calls LNB in the following text) signal, multiple groups first are selected from above-mentioned 4 groups of tradition LNB signal according to an analog control signal
Traditional LNB output signal, wherein every group first tradition LNB output signal can be one of above-mentioned 4 groups of tradition LNB signal.On
Stating the second switching circuit includes multiple groups output end, and couples above-mentioned first switching circuit, receive 2 groups of broadband LNB signals and
Above-mentioned the first tradition of multiple groups LNB output signal, receive a digital switch-over control signal with from above-mentioned 2 groups of broadbands LNB signal and
One of selection is cut in above-mentioned the first tradition of multiple groups LNB output signal with exporting 1 group in one of above-mentioned multiple groups output end
Change output signal.The controller couples above-mentioned second switching circuit, controls signal according to a LNB and generates above-mentioned number switching control
Signal processed.
Detailed description of the invention
Fig. 1 is to show a kind of schematic diagram of direct satellite direct broadcast system 1 in the embodiment of the present invention.
Fig. 2 is to show a kind of block diagram of low noise frequency reducer switching device 12 in the embodiment of the present invention.
Fig. 3 is to show a kind of schematic diagram of intermediate frequency switching device 3 in the embodiment of the present invention.
Fig. 4 is to show a kind of block diagram of 4xn switching circuit 30 in the embodiment of the present invention.
Fig. 5 is the schematic diagram for showing one kind (2+n) xn switching circuit 32 in the embodiment of the present invention.
Fig. 6 is to show a kind of block diagram of intermediate frequency switching device 6 in the embodiment of the present invention.
[symbol description]
1~satellite system；
10~satellite dish antenna；
12~tradition/broadband LNB+IF switching device；
14~broadband STB；
16a, 16b~tradition STB；
20a, 20b~antenna；
21a, 21b~low-noise amplifier；
22a, 22b~power divider；
23a-23b~bandpass filter；
24a-24f~frequency demultiplier；
25~IF switching device；
26a-26f~buffer；
WBV, WBH~broadband signal；
VH, VL, HL, HH~classical signal；
Sout1、Sout2、Sout3、Sout4、Sout5、Sout6~output signal；
25~IF switching device；
3~IF switching circuit；
30~4xn switching circuit；
32~(2+n) x n switching circuits；
34~MCU；
Sa, Sd~control signal；
40a, 40b, 40c, 40d~1 turns of z power dividers；
42a, 42b, 42n~4xa switching IC, 4xb switching IC, 4xn switch IC；
L1, L2 ..., Ln~output signal；
S1, S2 ..., Sn~output signal；
C1, C2 ..., Cn~control signal；
30~4xn switching circuit；
40a, 40b, 40c, 40d~1 turns of z power dividers；
42a, 42b, 42n~4xa switching IC, 4xb switching IC, 4xn switch IC；
VL-1~VL-z, VH-1~VH-z, HH-1~HH-z and HL-1~HL-z~classical signal；
Sa1, Sa2 ..., Sa3~control signal；
L1~La, L (a+1)~L (a+b) and L (n-c+1)~L (n)~output signal；
50a, 50b~1 turns of d power dividers；
52a, 52b, 52n~(2+e) x e switching IC, (2+f) x f switching IC, (2+g) x g switch IC；
WBV-1~WBV-d, WBH-1~WBH-d~broadband signal；
L1~Le, L (e+1)~L (e+f) and L (n-g+1)~L (n)~classical signal；
Sd1, Sd2 ..., Sd3~control signal；
S11, S21, Se1, S12, S22, Sf2, S1d, S2d, Sgd~output signal；
6~IF switching device
600a, 600b, 600c, 600d, 620a, 620b~power divider；
602a~4x4 switching circuit；
602b, 622a, 622b, 622c~4x2 switching circuit；
VL-1~VL-2, VH-1~VH-2, HH-1~HH-2 and HL-1~HL-2~classical signal；
WBV1~WBV3, WBH1~WBH3~broadband signal；
SMCU~number switch-over control signal；And
Port1, Port 2 ..., Port 6, P1, P2 ..., Pn~output end.
Specific embodiment
Herein it should be noted that, different embodiments or example proposed in lower disclosure, to illustrate this hair
Bright revealed different technologies feature, described particular example or arrangement are so non-to limit this to simplify the present invention
Invention.In addition, identical reference number and symbol may be reused in different embodiments or example, what these were reused
Reference number and symbol are to illustrate disclosed content, rather than to indicate the pass between different embodiments or example
System.
Fig. 1 is to show a kind of block diagram of the schematic diagram of satellite system 1 in the embodiment of the present invention, including satellite dish antenna
10, tradition/wideband low noise frequency demultiplier (Low Noise Block converter, call LNB in the following text) and intermediate frequency
(Intermediate Frequency, call IF in the following text) switching device 12, wideband set-top box (Set Top Box, call STB in the following text) 14 with
And tradition STB 16a, 16b.Satellite system 1 is suitable for tradition (Legacy) LNB, (wideband) broadband LNB or simultaneously
Satellite system both with the two, and can provide multiple tradition or broadband LNB output.For example, simultaneously including broadband in satellite system 1
STB 14 and tradition STB 16a, 16b, after receiving satellite direct broadcast signals from satellite dish antenna 10, same set of LNB and IF
Switching device 12 can provide satellite-signal to the broadband STB 14 for being set to parlor and the biography for being set to bedroom and kitchen simultaneously
Unite STB 16a, 16b.
The satellite system receiver satellite-signal mode of traditional LNB and broadband LNB is identical, but the way of output is different.Traditional LNB
The satellite-signal received can be cut into four parts, the control signal of traditional approach is sent out by user, is wanted with controlling LNB
The down-scaled signals of any part are exported to user.Broadband LNB can export all signal whole frequency reducings received to STB,
STB controls the part down-scaled signals that LNB submitting is cut without sending out the control signal of tradition LNB, but receives from all
In down-scaled signals, STB demodulates the program that user wants to watch, as long as output end of the user in LNB installs the division of labor
Device can allow a LNB offer signal to give a large amount of users and watch program.Traditional STB can not demodulate the letter of broadband LNB submitting
Number and new broadband STB must be used, and broadband STB can not also demodulate signal that traditional LNB is sent out and must use tradition
STB.Before user not yet updates STB completely, transition period just needs the tradition/broadband that can automatically switch
LNB switching device 12, to allow user while using tradition and broadband STB, or when user wants replacement broadband STB
When, without replacing tradition/broadband LNB switching device 12 simultaneously.
The present invention provides a kind of using tradition/broadband LNB switching device 12 satellite system 1, can automatically switch tradition/wide
Output with LNB, and have multiple outputs, can allow more than one user according to the outputs of multiple tradition and broadband LNB simultaneously
The different program of rating.
Fig. 2 is to show a kind of block diagram of tradition/broadband LNB switching device 12 in the embodiment of the present invention, including antenna
20a, 20b, low-noise amplifier (Low Noise Amplifier, call LNA in the following text) 21a, 21b, power divider 22a, 22b, band
Bandpass filter 23a to 23f, frequency demultiplier 24a to 24f, IF switching device 25 and buffer 26a to 26f.Tradition/broadband LNB
2 output signal to traditional STB or broadband STB from 1 to 6 LNB of satellite 1 or 2 aerial signal of reception (not shown) and output.
Tradition/broadband LNB 2 can choose arbitrary traditional or broadband six kinds of input down-scaled signals from any output end output signal
Sout1To Sout6To traditional STB or broadband STB, allow user that can arbitrarily connect tradition or broadband STB.
Antenna 20a, 20b receive tradition and wideband antenna signal, respectively by LNA 21a, 21b amplifying power, by power
It is 3 that distributor 22a, 22b, which divide signal 1, by bandpass filter 23a to 23f filtering, in frequency demultiplier 24a to 24f by signal
Frequency is reduced to intermediate frequency, and selects one or more output ends output tradition appropriate and broadband LNB by IF switching device 25, via
Buffer 26a to 26f is sent to one or more tradition STB or broadband STB.
Please refer to the output of frequency demultiplier 24a, wherein signal WBV and WBH be broadband LNB down-scaled signals, and VH, VL, HL,
Four down-scaled signals that HH is then cut by traditional LNB.25 major function of IF switching device be any selection broadband signal WBV,
One of them one of them output from 6 output ends of this six kinds of signals of WBH or classical signal VL, VH, HH, HL.Such as make
User may be selected IF switching device 25 above 4 output ends export respectively classical signal VL, VH, HH, HL and it is following 2 it is defeated
Outlet exports broadband signal WBV, WBH respectively.
Fig. 3 is to show a kind of schematic diagram of IF switching device 3 in the embodiment of the present invention, including 4xn switching circuit 30, (2+
N) x n switching circuit 32 and controller, such as micro-control unit (Microcontroller Unit, call MCU in the following text) 34.IF
Switching device 3 can be used as the IF switching device 25 in Fig. 2 tradition/broadband LNB 2, and broadband signal is collected from frequency demultiplier
WBV, WBH or classical signal VL, VH, HH, HL, and broadband signal WBV, WBH may be selected in the output end of each IF switching device 3
It is used as output signal with one of them in classical signal VL, VH, HH, HL, each output signal may be output to tradition or broadband
STB。
Referring to FIG. 3,4xn switching circuit 30 receives the input of 4 groups of classical signals VL, VH, HH, HL and exports the output of n group
Signal L1, L2 ..., Ln to (2+n) x n switching circuit 32, wherein output signal L1, L2 ..., Ln can for 4 groups of classical signal VL,
One group in VH, HH, HL, and can be selected by legacy control signal Sa.Legacy control signal Sa is to send out difference by STB
Input voltage and input source of sound (tone, about 22KHz) combination are to control which signal LNB will selectively export, therefore 4xn is cut
The similar traditional LNB for possessing n output end of circuit 30 is changed, can be inputted with external n user by traditional control signal Sa
Voltage and input source of sound come selection signal source.N group LNB control signal C1, C2 ..., Cn be the input signal from STB, every group
Control signal is from the analog control signal of traditional STB or the digital controlled signal from broadband STB.Traditional control
Signal Sa processed may include analog signal, and by traditional STB, respectively independent transmitting is to traditional LNB, to determine 4xn switching circuit 30
Correspondence output end which classical signal sent out.When by traditional STB transmission LNB control signal C1, C2 ..., Cn when, every group
LNB control signal C1, C2 ..., Cn may include high or low voltage and 0kHz or 22kHz source of sound.For example, when one of coupling
Traditional LNB of 4xn switching circuit 30 sends out the analog control signal including 13V (low-voltage) and 0kHz (source of sound) to 4xn switching
When circuit 30,4xn switching circuit 30 can export classical signal VL in corresponding output end.N simulation can be used in n STB user
Control signal selects the classical signal of corresponding output end output respectively.Output signal L1, L2 of 4xn switching circuit 30 ..., Ln
It can export to (2+n) x n switching circuit 32.
The switch-over control signal S that (2+n) x n switching circuit 32 is sent out according to MCU34dSelectivity output broadband signal WBV
Or WBH or classical signal VL, VH, HH or HL.(2+n) x n switching circuit 32 include n output end P1, P2 ..., Pn (n >=
1), each output end P1, P2 ..., the exportable 1 group of output signal S1, S2 of Pn ..., Sn, wherein every group of output signal S1,
S2 ..., Sn can be one group in broadband signal WBV, WBH and classical signal VL, VH, HH and HL, and can be by switching control
Signal SdIt is selected.
MCU34 according to tradition and broadband STB generate LNB control signal C1, C2 ..., Cn generate switch-over control signal Sd.
When by broadband STB transmission LNB control signal C1, C2 ..., Cn when, every group of LNB control signal C1, C2 ..., Cn may include number
Change satellite-signal selection (Digital Satellite Equipment Control, call DiSEqC in the following text) or frequency shift keying
(Frequency Shift Keying, FSK) signal.(2+n) x n switching circuit 32 can be with individual reception switch-over control signal
Sd is WBV or WBH to determine that corresponding output end will send out broadband signal.In one embodiment, LNB control signal C1,
C2 ..., Cn include DiSEqC signal and MCU34 by LNB control signal C1, C2 ..., Cn be converted to switch-over control signal Sd.If
LNB that MCU34 is received control signal C1, C2 ..., Cn is when being the digital controlled signal that broadband STB is generated, generate and correspond to number
Word controls the digital switch-over control signal Sd of signal, and (2+n) x n switching circuit 32 is according to the number for corresponding to digital controlled signal
Word switch-over control signal Sd selects one in 2 groups of broadband LNB signals as a switching output signal, implies that selection broadband signal
WBV or WBH is exported from corresponding output end.LNB control signal C1, C2 for being received as MCU34 ..., Cn be that tradition STB is produced
When raw analog control signal, the digital switch-over control signal Sd for corresponding to a default settings is generated, and (2+n) x n switching electricity
Road 32 is according to the digital switch-over control signal S for corresponding to default settingsdSelect tradition LNB output signal as switching output letter
Number.For example, the signal Lx (x=1~n) received from 4xn switching circuit 30 is directly output to as output signal Sx defeated
Outlet Px.
In no submitting specific DiSEqC instruction, for traditional STB, the circuit setting of IF switching device 3 is equal to
4xn switching circuit 30 is only seen, and classical signal VL, VH, HH or HL are directly passed over into (2+n) x n switching circuit 32 and passed
Give traditional STB；And for the STB of broadband, (2+n) is if x n switching circuit 32 receives DiSEqC instruction, and can correctly interpret
DiSEqC is instructed to send out the broadband signal of WBV or WBH.Therefore such IF switching device 3 can be compatible with simultaneously to tradition with
The use of broadband LNB.
Fig. 4 is to show a kind of block diagram of 4xn switching circuit 30 in the embodiment of the present invention, including 1 turn of z power divider
40a, 40b, 40c, 40d and switching IC42a, 42b ..., 42n.4xn switching circuit 30 can be the 4xn switching circuit 30 of Fig. 3.
Such as the description of Fig. 3,4xn switching circuit 30 receives classical signal VL, VH, HH or HL from frequency demultiplier and is selected according to control signal Sa
Output classical signal is selected to (2+n) x n switching circuit.
Switching IC42a, 42b ..., 42n have four groups of input terminals connect from 1 turn of z power divider 40a, 40b, 40c, 40d
Receive classical signal VL, VH, HH and HL and n group output end output 1 or multiple groups classical signal VL-1~VL-z, VH-1~VH-
Z, HH-1~HH-z and HL-1~HH-z, using as output signal L1, L2 ..., Ln.In certain embodiments, VL-1~VL-
Z, VH-1~VH-z, HH-1~HH-z and HL-1~HH-z are the replica signal of VL, VH, HH and HL.For example, signal
VL-1, VH-1, HH-1 and HL-1 are one group of classical signal VL, VH, HH and HL, and signal VL-2, VH-2, HH-2 and HL-2 are another
Group classical signal VL, VH, HH and HL, and so on.Switching IC can be two kinds of switching IC of 4x2 or 4x4 in certain embodiments,
But this patent conception is not subject to the limits, and different 4xx switchings IC (x is arbitrary value) that can arbitrarily arrange in pairs or groups are combined into n desired output.
Switch IC42a, 42b ..., input control signal Sa1, Sa2 of 42n ..., Sa3 can be the mould from traditional STB
Quasi- signal, but be not limited with analog signal.The analog signal that traditional STB is generated includes traditional input voltage and input source of sound control
Signal processed, the control signal that user sends out from traditional STB, which does not need to do too many hardware circuit, to be the i.e. controllable 4x of conversion and switches
IC42a、42b、…、42n。
Fig. 5 is the schematic diagram for showing one kind (2+n) xn switching circuit 32 in the embodiment of the present invention, including 1 turn of d power point
Orchestration 50a, 50b and (2+e) xe switching IC52a, (2+f) xf switching IC 52b ..., (2+g) xg switch IC 52n, output
The classical signal that signal L1~Ln is exported for the 4xn switching circuit in Fig. 4.(2+n) xn switching circuit 32 can be Fig. 3
(2+n) xn switching circuit 32.Such as the description of Fig. 3, (2+n) xn switching circuit 32 from frequency demultiplier receiving wide-band signal WBV and
Output signal L1, L2 of representative classical signal VL, VH, HH and HL that WBH and 4xn switching circuit 30 is exported ..., Ln, and
Selectively output broadband signal WBV and WBH or classical signal VL, VH, HH and HL.
(2+n) x n switching IC in Fig. 5 can have n classical signal and 2 broadband signals as input signal, and
There is the output of n group, the output of this n group can choose broadband signal WBV and WBH or classical signal VL, VH, HH and HL.
1 turn of d power divider 50a, 50b receive 2 groups of broadband signals WBV, WBH, and export 1 or multiple groups broadband signal
WBV-1~WBV-d, WBH-1~WBH-d.For example, broadband signal WBV-1~WBV-d is the replica signal of WBV, broadband
Signal WBH-1~WBH-d is the replica signal of WBH.
(2+n) x n switching IC52a, 52b ..., 52n receives by 1 turn of d power divider 50a, 50b and 4xn switching circuit
Classical signal and broadband signal, and the output of n group is exported according to digitized DiSEqC signal, every group of output can be the tradition received
One group of signal therein in signal and broadband signal.DiSEqC, which controls signal, to be digital signal, but is not with digital signal
Limit, by MCU (not shown) from broadband STB read DiSEqC control signal and switch to digital switch-over control signal Sd1, Sd2 ...,
Sd3.If (2+n) x n switch IC52a, 52b ..., 52n be number switching IC if do not need to do additional hardware route and convert
Control should (2+n) x n switching IC52a, 52b ..., 52n.Such as (2+n) x n switch IC52a from 1 turn of d power divider 50a,
50b receive 2 groups of broadband signals WBV-1, WBH-1 and from 4xn switching circuit receive e group classical signal L1, L2 ..., Le, and root
According to digital switch-over control signal Sd1 or Sd2 ..., Sd3 selection output 1 or multiple groups S11, S21 ..., Se1 ... S1d ... Sgd etc..
Fig. 6 is n=6 in the display embodiment of the present invention, the block diagram of another IF switching device 6, including 4xn switching electricity
Road 60 and (2+n) x n switching circuit 62.4xn switching circuit 60 include power divider 600a, 600b ..., 600d and
4x4 switching circuit 602a and 4x2 switching circuit 602b.(2+n) x n switching circuit 62 include power divider 620a, 620b with
And 4x2 switching circuit 622a, 622b, 622c.IF switching device 6 be it is a kind of with 6 input and 6 output can be automatic
The IF switching device of switching selection input.
4x4 switching circuit 602a and 4x2 switching circuit 602b is simulation control switching IC, and the two all receives 4 groups of tradition letters
Number VL, VH, HH and HL, 4x4 switching circuit 602a according to the exportable most 4 groups of output signals of selection of analog control signal Sa,
And 4x2 switching circuit 602b is according to the exportable most 2 groups of output signals of selection of analog control signal Sa.Analog control signal Sa
It may include the combination of high or low voltage and 0kHz or 22kHz source of sound with Sb, traditional STB by connecting IF switching device 6 (does not scheme
Show) it generates.
4x2 switching circuit 622a, 622b, 622c are digital control switching IC, and three all receives 2 groups of classical signals and 2
Group broadband signal, and according to digital switch-over control signal SMCUThe exportable most 2 groups of output signals of selection.Digital switching control
Signal SMCUIt can be DiSEqC signal, the broadband STB by connecting IF switching device 6 is (not shown) to be generated.
The embodiment of Fig. 1 to Fig. 6 can automatically switch tradition/broadband LNB for realizing tradition/broadband LNB switching device
Output, and have multiple outputs, more than one user can be allowed according to multiple tradition, and rating is different simultaneously with the output of broadband LNB
Program.
Those skilled in the art are appreciated that a variety of different technologies can be used to show for information and signal.Such as in specification
Data, instruction, information, signal, position, symbol and the chip of description can be by voltage, electric current, electromagnetic wave, magnetic field or particles, light field
Or particle or above any combination indicate.
Those skilled in the art can more understand each logical blocks described in the specification, module, processor, execute dress
Set, circuit and algorithm steps can by circuit hardware (such as Digital Implementation hardware, simulated implementation hardware, or both combination, can
Origin source code or other the relevant technologies are designed realization), using instruction various forms of program codes or design code (here
Software or software module can be further referred to as), or both in conjunction with and realized.In order to clearly show that above-mentioned software and hard
The interchangeability of part, various diagram elements, block, module, circuit and the step of specification description are usually retouched with its function
It states.These functions are related with design limitation with the specific application of holonomic system with software or hardware realization meeting.Art technology
Personnel can realize in various ways the function of description for each specific application, but the decision of implementation does not deviate by this
The spirit and scope of invention.
In addition, integrated circuit can be used in various logic block, module and circuit that the present invention describes
(Integrated Circuit, IC) is realized or is executed by access terminal or access point.Integrated circuit may include general processor,
Digital signal processor (Digital Signal Processor, DSP), application-specific integrated circuit (Application
Specific Integrated Circuit, ASIC), field programmable gate array logic element (Field Programmable
Gate Array, FPGA) or other programmable logic elements, discrete type logic circuit or transistor logic door, discrete type hardware
Element, electrical components, optical element, its any group of mechanical organ or the function for executing execution described in the invention
Close, stayed in executable integrated circuit, is external, or both the program code or program instruction that all have.General processor can be
Microprocessor, alternatively, the processor can be any commercial processor, controller, microprocessor or state machine.Processor
Can be realized by the combination of computing device, for example, DSP and microprocessor, multi-microprocessor, one or more microprocessors with
And the combination of DSP core or other various settings.
Those skilled in the art are appreciated that the present invention discloses the particular order of program step or sequence is only for example.According to setting
Preference is counted, those skilled in the art are appreciated that, without departing from the spirit and scope of the present invention, the present invention discloses program step
Particular order or sequence can sequentially be rearranged with other.The method of the embodiment of the present invention various steps adjoint with requirement
Sequence is only illustrated, and is not limited to particular order or sequence that the present invention discloses program step.
The method or algorithm steps can execute software module with hardware or processor, or in such a way that the two combines
It realizes.Software module (for example including executable instruction and related data) and other data interior can reside within data storage,
As RAM memory, flash memory, ROM memory, EPROM memory, eeprom memory, buffer, hard disk, floppy disk,
CD or any other machine readable (such as computer-readable) storage medium.Data storage medium may be coupled to machine, such as count
Calculation machine or processor (it can be described as " processor "), processor can be read from storage medium and write-in program code.Data storage
Medium can be integrated into processor.Pocessor and storage media interior can stay within ASIC.ASIC interior can reside in user equipment.Or place
Reason device and storage medium can be resided within user equipment in the form of discrete elements.In addition, applicable computer program product
It may include computer-readable medium, including the program code disclosed in one or more disclosures.In some embodiments, it is applicable in
Computer program product may include encapsulating material.
Though the present invention is disclosed as above with preferred embodiment, however, it is not to limit the invention, and those skilled in the art exist
It does not depart from the spirit and scope of the present invention, when can do a little change and retouching, therefore protection scope of the present invention is when view institute
Subject to attached claims confining spectrum.
Claims (11)
1. a kind of satellite-signal switching device, comprising:
First switching circuit receives 4 groups of custom low noise frequency demultiplier LNB signals, according to an analog control signal from above-mentioned 4 groups of biographies
One of selection is in system LNB signal to export the first tradition LNB output signal；
Second switching circuit, including output end, and couple above-mentioned first switching circuit, receive 2 groups of broadband LNB signals and on
The first tradition LNB output signal is stated, receives digital switch-over control signal to pass from above-mentioned 2 groups of broadbands LNB signal and above-mentioned first
One of selection is in above-mentioned output end output the first switching output signal in LNB output signal of uniting；And
Controller couples above-mentioned second switching circuit, controls signal according to LNB and generates above-mentioned digital switch-over control signal, wherein
When it is above-mentioned analog control signal that above controller, which receives above-mentioned LNB control signal, generates and correspond to the above-mentioned of default settings
Digital switch-over control signal, and above-mentioned second switching circuit is believed according to the above-mentioned digital switching control for corresponding to above-mentioned default settings
Number select above-mentioned tradition LNB output signal as above-mentioned first switching output signal.
2. satellite-signal switching device as described in claim 1, wherein above-mentioned first switching circuit includes:
4 group of first power divider, wherein every group of power divider receive respectively one group in above-mentioned 4 groups of tradition LNB signal with
Generate output；And
Sub- switching circuit couples above-mentioned 4 group of first power divider, according to above-mentioned analog control signal from above-mentioned 4 group of first function
One of selection is in the above-mentioned output of rate distributor to export above-mentioned first tradition LNB output signal.
3. satellite-signal switching device as described in claim 1, wherein above-mentioned second switching circuit includes:
2 group of second power divider, wherein every group of power divider receive respectively one group in the LNB signal of above-mentioned 2 groups of broadbands with
Generate output；And
First sub- switching circuit couples above-mentioned 2 group of second power divider, according to above-mentioned digital switch-over control signal from above-mentioned 2
One of selection is above-mentioned to export in the above-mentioned output and above-mentioned first tradition LNB output signal of the first power divider of group
First switching output signal.
4. satellite-signal switching device as claimed in claim 3, wherein the second switching circuit further include: another output end is used
With output the second switching output signal；And the second sub- switching circuit, wherein above-mentioned second sub- switching circuit is according to above-mentioned number
Switch-over control signal is selected from the above-mentioned output and above-mentioned first tradition LNB output signal of above-mentioned 2 group of first power divider
One of them is selected in above-mentioned another above-mentioned second switching output signal of output end output.
5. satellite-signal switching device as described in claim 1, wherein when above controller receives above-mentioned LNB control signal
When for digital controlled signal, the above-mentioned digital switch-over control signal for corresponding to above-mentioned digital controlled signal is generated, and above-mentioned second
Switching circuit selects above-mentioned 2 groups of broadband LNB to believe according to the above-mentioned digital switch-over control signal for corresponding to above-mentioned digital controlled signal
One in number is used as above-mentioned first switching output signal.
6. satellite-signal switching device as described in claim 1, wherein above-mentioned analog control signal includes input voltage and defeated
Enter source of sound.
7. a kind of satellite-signal switching device, comprising:
First switching circuit receives 4 groups of custom low noise frequency demultiplier LNB signals, traditional from above-mentioned 4 groups according to analog control signal
Multiple groups the first tradition LNB output signal is selected in LNB signal, wherein every group first tradition LNB output signal can be above-mentioned 4 groups of biographies
One of system LNB signal；
Second switching circuit, including multiple groups output end, and couple above-mentioned first switching circuit, receive 2 groups of broadband LNB signals with
And above-mentioned the first tradition of multiple groups LNB output signal, receive a digital switch-over control signal with from above-mentioned 2 groups of broadbands LNB signal with
And select one of them to export 1 group in one of above-mentioned multiple groups output end in above-mentioned the first tradition of multiple groups LNB output signal
Switch output signal；And
Controller couples above-mentioned second switching circuit, controls signal according to LNB and generates above-mentioned digital switch-over control signal, wherein
When it is above-mentioned analog control signal that above controller, which receives above-mentioned LNB control signal, generates and correspond to the above-mentioned of default settings
Digital switch-over control signal, and every group of above-mentioned second switching circuit selects above-mentioned tradition LNB output letter according to above-mentioned default settings
Number be used as above-mentioned 1 group of switching output signal.
8. satellite-signal switching device as claimed in claim 7, wherein every group of above-mentioned first switching circuit include:
4 group of first power divider, wherein every group of power divider receive respectively one group in above-mentioned 4 groups of tradition LNB signal with
Generate output；And
First sub- switching circuit couples above-mentioned 4 group of first power divider, according to above-mentioned analog control signal from above-mentioned 4 groups the
Wherein 4 group of first tradition LNB that above-mentioned the first tradition of multiple groups LNB output signal is selected in the above-mentioned output of one power divider is defeated
Signal out；And
Second sub- switching circuit couples above-mentioned 4 group of first power divider, according to above-mentioned analog control signal from above-mentioned 4 groups the
Wherein 2 group of first tradition LNB output letter of above-mentioned the first tradition of multiple groups LNB output signal is selected in the output of one power divider
Number.
9. satellite-signal switching device as claimed in claim 7, wherein every group of above-mentioned second switching circuit include:
2 group of second power divider, wherein every group of power divider receive respectively one group in the LNB signal of above-mentioned 2 groups of broadbands with
Generate output；And
3 groups of sub- switching circuits of third, wherein the sub- switching circuit of every group of third couples above-mentioned 2 group of second power divider, according to upper
It is defeated to state above-mentioned output and above-mentioned multiple groups first tradition LNB of the digital switch-over control signal from above-mentioned 2 group of first power divider
Select one of them to export above-mentioned 1 group of switching output signal in signal out.
10. satellite-signal switching device as claimed in claim 7, wherein when above controller receives above-mentioned LNB control signal
When for digital controlled signal, the above-mentioned digital switch-over control signal for corresponding to above-mentioned digital controlled signal is generated, and above-mentioned second
Switching circuit selects above-mentioned 2 groups of broadband LNB to believe according to the above-mentioned digital switch-over control signal for corresponding to above-mentioned digital controlled signal
One in number is used as above-mentioned 1 group of switching output signal.
11. satellite-signal switching device as claimed in claim 7, wherein above-mentioned analog control signal include input voltage and
Input source of sound.
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| EP1347644A2 (en) * | 2002-03-21 | 2003-09-24 | Unitron | Satellite signal distribution systems |
| CN1829077A (en) * | 2005-03-03 | 2006-09-06 | 永辰科技股份有限公司 | Universal dual-output low noise satellite frequency demultiplier |
| CN102843179A (en) * | 2012-08-13 | 2012-12-26 | 北京盈想东方科技发展有限公司 | Portable narrow band satellite communication device and control method thereof |
| EP2887569A1 (en) * | 2013-12-17 | 2015-06-24 | Wistron Neweb Corporation | Signal switch device and satellite signal receiver |
| CN104735503A (en) * | 2013-12-20 | 2015-06-24 | 启碁科技股份有限公司 | Signal switching device and satellite signal receiving device |
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| EP1347644A2 (en) * | 2002-03-21 | 2003-09-24 | Unitron | Satellite signal distribution systems |
| CN1829077A (en) * | 2005-03-03 | 2006-09-06 | 永辰科技股份有限公司 | Universal dual-output low noise satellite frequency demultiplier |
| CN102843179A (en) * | 2012-08-13 | 2012-12-26 | 北京盈想东方科技发展有限公司 | Portable narrow band satellite communication device and control method thereof |
| EP2887569A1 (en) * | 2013-12-17 | 2015-06-24 | Wistron Neweb Corporation | Signal switch device and satellite signal receiver |
| CN104735503A (en) * | 2013-12-20 | 2015-06-24 | 启碁科技股份有限公司 | Signal switching device and satellite signal receiving device |
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