CN104284100B - Distributed video control system and distributed video control method - Google Patents
Distributed video control system and distributed video control method Download PDFInfo
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Abstract
The invention discloses a distributed audio-visual control system, which comprises a control module, a receiving module and a transmission module, wherein the control module, the receiving module and the transmission module are coupled through a transmission medium. The control module is used for generating a first modulation control signal and/or a second modulation control signal transmitted by a transmission medium. The transmission module has a channel information, modulates the multimedia signal into a radio frequency signal according to the channel information, loads the radio frequency signal to a transmission medium, demodulates the first modulation control signal and executes the demodulated control command. The receiving module has display channel information. The receiving module can be independently arranged outside the control module or integrated with the control module. The receiving module is used for determining whether to change the display channel information of the receiving module according to the second modulation control signal.
Description
Technical field
The present invention is relevant with audio-visual transmission, especially with regard to a kind of distributing audio-video control system and the audio-visual control of distributing
Method.
Background technology
Fig. 1 is refer to, Fig. 1 illustrates the schematic diagram of traditional distributing audio-video control system.As shown in figure 1, transmission end TX
Audio-visual by different audio-visual sources is compressed immediately, and is assigned to different DVB-T channels by coaxial cable line and is passed
Send.Arrange in pairs or groups respectively respective boxcars of each receiving terminal RX1~RX3 receive video-audio data and select respective video and audio output device
The channel that VO1~VO3 is shown.
However, above-mentioned traditional distributing audio-video control system 1 will suffer from many problems in actual applications：
(1) when user wants distributing audio-video control system 1 switching to separator (splitter) pattern, use
Person must carry out the channel switch of display by manual type, fairly time consuming.
(2) control some transmission end TX display horse race lamp messages of issuing orders are needed.
(3) under the framework of distributing audio-video control system 1, each transmission end TX may be distributed in different places.
(4) different time and the scheduling of switching can not be carried out for every content televised.
The content of the invention
Therefore, the present invention proposes a kind of distributing audio-video control system and the audio-visual control method of distributing, to solve previously
The above mentioned problem that technology is suffered from.
It is a kind of distributing audio-video control system according to the specific embodiment of the present invention.In this embodiment, comprising：Extremely
A few control module, respectively to produce the one first modulation control signal transmitted via a transmission media；And at least one pass
Defeated module, is mutually coupled with the control module, and each transport module has a subordinate channel information respectively, and according to the subordinate channel
By the multi-media signal modulation into a radiofrequency signal and export to the transmission media, each transport module is more via the transmission media
The first modulation control signal is received, and the first modulation control signal is demodulated to a control command, and performs the control
Order.
In another specific embodiment, the present invention provides a kind of distributing audio-video control system, comprising：At least one control mould
Block, is mutually coupled with the transmission media respectively, and each control module produces one first modulation control signal a to transmission media；And
An at least receiving module, respectively with a display channel information, each receiving module is coupled and received at least with the transmission media
One radiofrequency signal, each receiving module selects corresponding radiofrequency signal according to the display channel information, and by the radiofrequency signal
Corresponding multi-media signal is reduced into, each receiving module receives the first modulation control signal by transmission media, and will
First modulation control signal demodulation is reduced into one first control command, and decides whether renewal institute according to first control command
The display channel information of category.
In another specific embodiment, the present invention more provides a kind of distributing audio-visual control method, includes the following steps：
An at least control module, at least a receiving module and an at least transport module are provided, it is respectively with a transmission media phase mutual coupling
Connect, each transport module has a subordinate channel information respectively, each receiving module has a display channel information respectively；Make this
An at least transport module is respectively according to the subordinate channel by a multi-media signal modulation is into a radiofrequency signal and exports to the transmission
Media；An at least receiving module is set to receive an at least radiofrequency signal from the transmission media respectively, each receiving module is according to this
Show that channel information selects corresponding radiofrequency signal, and the radiofrequency signal is reduced into corresponding multi-media signal；And
A selection at least control module therein produces a modulation control signal, the display to change an at least receiving module therein
Channel information either controls an at least transport module therein.
In another embodiment, the present invention more provides a kind of distributing audio-video control system, comprising：Multiple transport modules,
With multiple receiving modules, all mutually coupled by a plurality of coaxial cable；Each transport module by video-audio signal frequency modulation belonging to one into
Corresponding to a subordinate channel information frequency band one belonging to radiofrequency signal, and exported by coaxial cable；Each receiving module
The affiliated radiofrequency signal corresponding with the channel is selected according to affiliated display channel information, and the affiliated radiofrequency signal is reduced into
Corresponding affiliated video-audio signal；One receiving module, according to user's input interface by one first control command and one second
Control command distinguishes modulation into one first modulation control signal and the second modulation control signal, and is exported by coaxial cable；Its
His receiving module, by coaxial cable to receive the first modulation control signal, and modulation control signal demodulation is reduced into
First control command, and show according to belonging to the first control command decides whether to update channel information；Other transport modules, lead to
Coaxial cable is crossed to receive the second modulation control signal, and the second modulation control signal demodulation is reduced into second control
Order, and renewal subordinate channel information is decided whether according to the second control command.
In another embodiment, the present invention more provides a kind of distributing audio-video control system, comprising：Multiple transmission moulds
Block, with multiple receiving modules, is all mutually coupled by a plurality of coaxial cable；Each transport module by affiliated video-audio signal frequency modulation into
Corresponding to the affiliated radiofrequency signal of the frequency band of subordinate channel information, and exported by coaxial cable；Each receiving module according to
Affiliated display channel information selects the affiliated radiofrequency signal corresponding with the channel, and the radiofrequency signal is reduced into corresponding
Affiliated video-audio signal；One receiving module can be according to user's input interface, and by a control command, modulation controls to believe into a modulation
Number, and exported by coaxial cable；And other receiving modules, by coaxial cable to receive the modulation control signal, and will
Modulation control signal demodulation is reduced into the control command, and decides whether renewal subordinate channel information according to the control command.
In another embodiment, the present invention more provides a kind of distributing audio-visual control method, audio-visual applied to a distributing
Control system, the distributing audio-video control system includes a transmission media, a receiving module and a transport module, and this method is included
The following steps：(a) receiving module produces a modulation control signal to the transmission media；(b) transport module reception one is audio-visual
Signal simultaneously receives the modulation control signal from the transmission media；(c) transport module demodulates the modulation control signal to be formed
One first control signal, and according to first control signal by the video-audio signal modulation into a radiofrequency signal to the transmission media；
And (d) receiving module receives the radiofrequency signal, and the radiofrequency signal is reduced into corresponding video-audio signal.
Compared to prior art, according to the distributing audio-video control system and the audio-visual control method of distributing of the present invention, tool
Have the advantage that：
(1) it is dispersible to set, it is adaptable to transmit over long distances, and receiving terminal RX need not be specifically designed.
(2) control module may be disposed at optional position, without being controlled in transmission end TX；Either control module can be with
It is incorporated into receiving module.Control module can select controlling transmission module control receiver module as needed either
Both control simultaneously.
(3) control module can carry out video signal switching scheduling planning and control, and some transmission end TX display races of ordering immediately
Barn lantern message.
(4) control module can arrange in pairs or groups infrared ray can carry out receiving terminal RX display channel selection control.
(5) linked up, set without extra increase circuit or networking with transmission end TX using the coaxial cable just set originally
It is standby.
(6) control module also has the characteristic that multiple spot is set.
It can be obtained further by following detailed description of the invention and institute's accompanying drawings on the advantages and spirit of the present invention
Solution.
Brief description of the drawings
Fig. 1 illustrates the schematic diagram of traditional distributing audio-video control system.
Fig. 2A illustrates point being independently arranged at according to the control module of the present invention in the specific embodiment outside receiving module
Dissipate the schematic diagram of formula audio-video control system.
Fig. 2 B illustrate the distributing being incorporated into according to the control module of the present invention in the specific embodiment in receiving module
The schematic diagram of audio-video control system.
Fig. 3 A are illustrated to be independently arranged in the another specific embodiment outside receiving module according to the control module of the present invention
The schematic diagram of distributing audio-video control system.
Fig. 3 B are illustrated to be independently arranged in the another specific embodiment in receiving module according to the control module of the present invention
The schematic diagram of distributing audio-video control system.
Fig. 4 A illustrate an embodiment of the control module CB in distributing audio-video control system.
Fig. 4 B are an embodiment schematic diagram of receiving module.
Fig. 4 C are another embodiment schematic diagram of control module of the invention.
Fig. 5 illustrates an embodiment of the delivery module TX in distributing audio-video control system.
Fig. 6 illustrates another embodiment of the delivery module TX in distributing audio-video control system.
The audio-visual outputs of the first video and audio output device VO1 to the 3rd that Fig. 7 A and 7B is illustrated in distributing audio-video control system are filled
Put VO3 and play the first multi-media signal AV1, the second multi-media signal AV2 and the 3rd multi-media signal AV3 and change frequency respectively
The embodiment in road.
Fig. 7 C are via transmission media to export the first modulation control signal to control channel switch to illustrate by control module
Figure.
Fig. 8 A illustrate the embodiment using distributing audio-video control system of the present invention.
Fig. 8 B are illustrated realizes the another of Image Segmentation (video splitter) using distributing audio-video control system of the present invention
One embodiment.
Fig. 8 C are to realize the schematic diagram of Image Segmentation using the transport module framework shown in Fig. 6.
Fig. 9 A and 9B illustrate according to a particular embodiment of the invention in the audio-visual control method of distributing flow chart.
Figure 10 illustrates the sub-step that step S10 or S10a in Fig. 9 A or 9B are included.
Figure 11 illustrates the sub-step that step S14 or S14a in Fig. 9 A or 9B are included.
【Symbol description】
Embodiment
It is a kind of distributing audio-video control system according to the preferred embodiment of the present invention.In practical application, point
Formula audio-video control system is dissipated to link up with transmission end as transmission media using the coaxial cable just set originally and without special
Receiving terminal is not designed, its audio-visual switching device of matrix that can be applied to DVB-T technologies, but be not limited.
Fig. 2A is referred to, Fig. 2A illustrates showing for the distributing audio-video control system in the specific embodiment according to the present invention
It is intended to.As shown in Figure 2 A, distributing audio-video control system 2a includes audio-visual original device VI, output module OM, transmission media, its
Be made up of a plurality of coaxial cable CL, transport module TX and control module CB.Wherein, audio-visual original device VI is coupled to transmission mould
Block TX；Transport module TX is coupled by coaxial cable CL and output module OM and control module CB, the coupling side of the present embodiment
Formula can be considered as a kind of concatenation, that is, each device is linked together by the interface of one-in-and-one-out by coaxial cable CL；
The control module CB equally telecommunication interfaces with one-in-and-one-out pass through two coaxial cables and output module OM and transmission respectively
Module TX phases are coupled.In addition, in another embodiment, control module CB more can be by being wirelessly or non-wirelessly coupled to output module
OM, video and audio output device is controlled with transmission of control signals.In the present embodiment, output module OM has video and audio output device
VO, for example：Liquid crystal display or plasma display etc., and integrate a receiving module RX in it and coaxial cable couple with
Control video and audio output device VO output is provided；In addition, in another embodiment, RX can also be independently disposed to audio-visual output dress
Put outside VO.In addition, it is noted that in one embodiment, control module CB can be independently arranged or be integrated in transmission mould
In block TX or receiving module RX.In the present embodiment, control module CB is independently disposed to transport module TX and output module OM
Outside, belong to the aspect being independently arranged.
In this embodiment, distributing audio-video control system 2a includes single audio-visual original device VI and single output
Module OM.Transport module TX can be set with a subordinate channel information in itself, therefore when transport module TX is received from shadow
After sound original device VI multi-media signal, multi-media signal can be tuned as by radiofrequency signal according to the subordinate channel information,
Now the radiofrequency signal has the frequency band corresponding to the subordinate channel information, and then, transport module TX again exports radiofrequency signal
To coaxial cable CL.It is noted that the multi-media signal can be believed for signal of video signal, voice signal either image and sound
Number combination.Control module CB produces one first modulation control signal and is transmitted to coaxial cable CL, and by coaxial cable CL.
When transport module TX receives the first modulation control signal via coaxial cable CL, transport module TX is by modulation control signal solution
It is tuned into a control command and performs the control command.The control command can carry out subordinate channel information with controlling transmission module TX
Switching, time scheduling, display information superposition or foregoing any combination.Wherein, when carrying out the switching of subordinate channel information, control
Contain channel information in system order so that the channel information that transport module TX can be in control signal changes the subordinate channel
Information, and then by multi-media signal frequency modulation to the frequency band corresponding to this channel information；And the control of the time scheduling is then control
Transport module TX processed when between change subordinate channel information either when between start multi-media signal carryover radiofrequency signal
Output etc.；The display information superposition then refers to contain display information in the control command, and transport module TX can be allowed to show this
Information carries out superposition with the image information in multi-media signal, forms the effect such as horse race lamp.
Then, can be to this when the receiving module RX in output module OM receives radiofrequency signal via coaxial cable CL
Radiofrequency signal is decoded so that radiofrequency signal is reduced into multi-media signal, and is exported to video and audio output device VO.Audio-visual output
Device VO exports corresponding multimedia messages further according to multi-media signal, for example;Sound, image are either audio-visual etc..Say
It is bright, there is in receiving module RX a display channel information, it is however generally that, the display channel information can be to should radiofrequency signal
Corresponding channel information, such video and audio output device VO just can smoothly export multimedia messages.In one embodiment, should
Display channel information can be changed, and the mode of change can be a variety of, in one embodiment, can be produced by control module CB
Raw control signal wirelessly or non-wirelessly is by controlling output module OM receiving module RX.For example：Control module CB can launch
The infrared signal of one correspondence channel information gives receiving module RX, when receiving module RX receives the infrared signal, you can with
Channel information according to contained by the infrared signal change it belonging to display channel information.
In addition, in another embodiment, control module CB can control to export mould by one second modulation control signal
Block OM receiving module RX.Contain channel information in the second modulating signal that control module CB is produced, and be output to coaxial cable
On line CL.Receiving module RX is received via coaxial cable CL after the second modulating signal, is demodulated and is obtained channel letter
Breath, it is that can be decided whether to change the display belonging to it according to channel information now, inside receiving module RX to have processor
Channel information, if the display channel information that the channel information having in second modulating signal has with receiving module RX
Difference, then changed, on the contrary then maintain original display channel information.
Refer to shown in Fig. 2 B, it is the schematic diagram of another embodiment of distributing audio-video control system of the present invention.This reality
The distributing audio-video control system 2b for applying example is substantially similar to Fig. 2A, unlike, control module CB is integrated in a reception mould
In block RX.In the present embodiment, receiving module RX and video and audio output device VO are the element of independent separate, that is, receiving module RX
Turnover telecommunication interface connect coaxial cable CL respectively, and receiving module RX recycles had multi-media signal output
End, for example：HDMI output ends, DVI output ends either AV output ends etc., but be not limited system, with video and audio output device VO
Connection, allows video and audio output device VO to receive the multi-media signal and play.To illustrate that, although in the present embodiment,
Receiving module RX and video and audio output device VO is two independent elements, and in another embodiment, receiving module can also be incorporated into
Within video and audio output device VO.Control module CB can pass through the first modulating signal controlling transmission module TX.Due to control module
CB is incorporated into receiving module RX, therefore the information for controlling switching channels can be transmitted to reception by control module CB by internal wiring
Module RX carries out channel replacing.
Fig. 3 A are referred to, it illustrates showing for the distributing audio-video control system in the another specific embodiment according to the present invention
It is intended to.As shown in Figure 3A, distributing audio-video control system 3a comprising audio-visual original device VI1~VI3, output module OM1~
OM3, the transmission media comprising a plurality of coaxial cable CL, transport module TX1~TX3 and control module CB.Wherein, audio-visual source dress
Put VI1~VI3 and be respectively coupled to transport module TX1~TX3；Transport module TX1~TX3, output module OM1~OM3 and control
Molding block CB is then coupled with the plurality of coaxial cable CL respectively.The coupling mode of the present embodiment is transport module TX1~TX3, defeated
Go out module OM1~OM3 and control module CB has signal input and signal output interface respectively, and it is connected to coaxially
Cable CL, and the other end of cable, then be connected to adjacent transport module TX1~TX3, output module OM1~OM3 and control
The signal input or output interface of any module in module CB.
In one embodiment, each transport module TX1~T3 has a subordinate channel information, each transport module respectively
TX1~T3 subordinate channel information is different.Therefore when transport module TX1~TX2 is received from the audio-visual source dress mutually coupled
Put after VI1~VI3 multi-media signal, multi-media signal can be tuned as by radiofrequency signal according to the subordinate channel information, this
When the radiofrequency signal have corresponding to the subordinate channel information frequency band, then, transport module TX1~TX3 is again by radiofrequency signal
Export to coaxial cable CL.Therefore, multiple radiofrequency signals are had on coaxial cable CL, each radiofrequency signal correspondence is different
Frequency band.Control module CB can produce the first modulation control signal to control the plurality of transport module TX1~TX3.It is real one
Apply in example, control module CB can produce the first modulating signal according to the setting of user, at least one can be controlled by having in it
Transport module TX1~TX3 control command.The control command can include each transport module of control and carry out subordinate channel letter
Switching, time scheduling, display information superposition or the foregoing any combination of breath.It is as described in earlier figures 2A, and therefore not to repeat here.
Each output module OM1~OM3 has an a video and audio output device VO and receiving module RX respectively, and it can be with whole
Either it is independently disposed to together in video and audio output device VO inside outside video and audio output device VO.It is each to receive in the present embodiment
Module RX is combined with each video and audio output device VO.There is a display channel information in receiving module RX, each
Receiving module selects the radiofrequency signal corresponding with the display channel information, and this is penetrated according to affiliated display channel information
Frequency signals revivification is exported to video and audio output device VO into multi-media signal.In addition, it is noted that control module CB can be with
Each output module OM1~OM3 display content is controlled, in one embodiment, control module CB can be by wireless or have
The mode of line transmission controls the receiving module RX that output module OM1~OM3 has show the change of channel.Wireless side
Formula can include by way of infrared control, but be not limited system.As for wired mode, coaxial cable can be passed through
Line CL, which is transmitted, is loaded with one second modulation control signal of one or more receiving module RX channel alteration information of Request for Change, has in it
The order of channel is changed, therefore when each output module OM1~OM3 receives second modulation control letter on coaxial cable CL
It number can be demodulated, the order of change channel is then reduced into, by the channel information in the change channel commands, to determine
Whether affiliated display channel information is updated.In addition to this foregoing utilization coaxial cable CL mode, more can additionally it pass through
The receiving module RX of another transmission line and output module OM1~OM3 links together, with a particular communication agreement, for example：
RS485 host-host protocols, receiving module RX is reached by control command.
In addition, control module CB can more be coupled with hand-hold device SP by wirelessly or non-wirelessly mode, the present embodiment is
Wirelessly.Control module CB receives user's input information that hand-held device SP is produced, and the user is inputted into information
Change into first modulating signal, the second modulating signal or wireless control command.Hand-held device SP can for mobile phone or
It is tablet personal computer, but is not limited.In one embodiment, application program can be installed in hand-held device SP there is provided user
Input interface come produce user input information.In addition, to illustrate that, although the control module CB quantity in Fig. 3 A is only
One, but system is not limited, multiple control module CB can be set according to demand.
Refer to shown in Fig. 3 B, the figure is that the distributing audio-video control system in the another specific embodiment of the present invention shows
It is intended to.Similar substantially with Fig. 3 A framework in the present embodiment, difference is that the control module CB of the present embodiment is exported with each
The receiving module RX that module OM1~OM3 has is combined, and forms man-to-man configuration.In other words, each is received
All there is a control module CB in module RX.Each control module CB of the present embodiment can produce the first modulation control signal
And/or one second modulation control signal, wherein the first modulation control signal is to select the biography that control connects with coaxial cable CL
Defeated module TX1~TX3, and the output module OM1 of the second modulation control signal then to select control to connect with coaxial cable CL
The receiving module RX having in~OM3.The control details of the first modulation control signal and the second modulation control signal is such as
Described in earlier figures 3A or 2A~2B, therefore not to repeat here.It is noted that earlier figures 3A framework can be mixed with Fig. 3 B framework
With.In addition, the control module CB shown in earlier figures 2A~3B can have control one or more transport module RX simultaneously with TX
And one or more receiving module TX ability, but system is not limited, for example in one embodiment, control module CB is only simple
For controlling one or more receiving module RX, or in another embodiment, control module CB is only used for merely controlling one
Platform or many transport module TX, these are implemented with applying aspect, and the people of art technology can give according to the spirit of the present invention
Change.
Fig. 4 A are refer to, it illustrates an embodiment of the control module CB in distributing audio-video control system.In Figure 4 A,
Control module CB includes input block 40, display unit 41, processor 42, transmitter 43 and modulating module MM, implements one
In example, modulating module MM includes modulator 44 and coupler 45.Processor 42 is respectively coupled to input block 40, display unit
41st, transmitter 43 and modulator 44；Modulator 44 couples coupler 45.
In this embodiment, input block 40 is to receive user input USIN.In the present embodiment, user's input
USIN may be from hand-held device SP (as shown in Fig. 3 A or 3B) or the input interface built on control module CB, for example：Touch-control
Panel or button.Operate for convenience, the display unit 41 on control module CB can show that user inputs USIN correlation
Information, when being inputted with sharp user using the input interface being arranged on control module CB, is identified confirmation menu or input
Data.Processor 42 inputs USIN according to user and produces the first control data and/or the second control data, wherein the first control
Data processed are used to controlling transmission module TX；And the second control data is then used to control receiver module RX.The first control data quilt
Modulating module MM is sent to, by the modulator 44 in it by the first control data modulation into first with a fixed frequency
Modulation control signal, then via signal output interface DVBO it is loaded onto coaxial cable CL by coupler 45.On the other hand, if made
Information containing control receiver module RX in user's input USIN, for example, change its control information for showing channel information, then locate
Reason device 42 converts that information into the second control data, then the wired or wireless control for changing specific format via transmitter 43 is ordered
Order, for example：It is infrared control signal in Figure 4 A.The infrared control signal can be by the reception with infrared receiver
Module RX is received., can be with because receiving module RX has a display channel information in itself, therefore after receiving module RX is received
The infrared signal is handled, to obtain the channel information contained by inside, then decides whether to carry out showing channel information
Change.In addition, in another embodiment, transmitter 43 can also be the wire transmission module of RS485 class, therefore its generation is defeated
Going out control signal can be RS485 signals and be sent to the corresponding RS485 moulds that receiving module RX has by wired mode
Block, but be not limited.To illustrate that the second control data for being transmitted of transmitter can be one (control module CB) to one
(receiving module RX) is controlled, or controls of one (the control module CB) to many (receiving module RX), has no specific limitation.
In addition it is noted that in another embodiment, Fig. 4 A control module CB transmits the side of second control data
Second control data can also be converted into one second modulating signal by formula by modulator 44, then be carried via coupler 45
Other receiving modules for transporting to distal end are uploaded to coaxial cable CL.The present embodiment is controlled using Fig. 4 A control modules CB transmission second
The mode of data, can especially apply control module CB and receiving module RX be separate framework (for example：Fig. 2A or 3A
Shown framework).Under such framework, the receiving module RX in the output module OM of distal end can as shown in Figure 4 B, and it is to connect
Receive the embodiment schematic diagram of module.In the present embodiment, receiving module RX have coupler 51, processor 52, demodulator 53 and
Demodulation module DM.Demodulation module DM, to receive radiofrequency signal via coaxial cable CL and radiofrequency signal is reduced into multimedia
Signal and the display channel information according to belonging to updating the control of processor 52.Demodulation module DM includes frequency modulator 54, many
Media demodulator 55, multimedia image processor 56 and multimedia transmission processor 57.Coupler 51 is used to and coaxial cable
CL phases are coupled, to receive at least radiofrequency signal and/or the second modulation control signal transmitted in coaxial cable CL.Illustrate
, the different frequency bands of each radiofrequency signal correspondence, each frequency band then corresponds to a specific channel.Have in the frequency modulator 54
One display channel information, therefore when receiving module RX receives an at least radiofrequency signal from coaxial cable 52, frequency modulator 54
Capture to the radiofrequency signal of channel information should be shown, and be transferred to multimedia demodulator 55.55 pairs of multimedia demodulator this penetrate
Frequency signal is demodulated, and the radiofrequency signal is reduced into a compression multi-media signal, is passing through multimedia image processor 56
Decompressed to be reduced into a multi-media signal, then transmitted via multimedia video transmitter 57 to video and audio output device VO.
In addition, when having in coaxial cable CL containing the second modulation control signal, coupler 51 can be by the second modulation control
Signal processed is transmitted to demodulator 53 and demodulates the second modulation control signal, and the signal after demodulation is transmitted into processor 52, is located
Reason device 52 determines whether to change receiving module RX display channel information according to the content of the signal.If to be changed
Talk about, then processor 52 produces the second control data according to the channel information to be changed and reaches frequency modulator 54.Frequency modulator 54 is received
After second control data, current display channel information is changed according to the channel information.
Refer to shown in Fig. 4 C, the figure is another embodiment schematic diagram of control module of the present invention.The implementation of the present embodiment
Aspect is the framework for combining control module CB and receiving module RX.Receiving module RX in the present embodiment has a control
A molding block CB and demodulation module DM.There is input block 40, display unit 41, processor 42, transmission in control module CB
Device 43, modulator 44, coupler 45 and demodulator 46.And demodulation module DM then contains frequency modulator 54, multimedia demodulator
55th, multimedia image processor 56 and multimedia video transmitter 57.It can be applied in the receiving module RX of the present embodiment
Framework as shown in 2B or Fig. 3 B.Referring to Fig. 3 B and Fig. 4 C, in one embodiment, user can use hand-held dress
SP is put to be communicated with control module CB.There is user's operate interface on hand-held device SP, it can be answered by downloading
With program come in hand-held device SP.User by hand-held device SP is that operate interface selection will control one or many
Platform receiving module RX or the machine reception mould RX groups, control distal end transport module TX either both simultaneously controlled
System.
The transport module TX of explanation control distal end first, control module CB can input what is controlled by operator interface
One or more transport module TX.In one embodiment, user produces user by hand-held device SP and inputs USIN, and it can
With including switching distal end transport module TX subordinate channel information or being the time for setting distal end transport module TX runnings, example
Such as：Periodicity or single disposable setting time point change subordinate channel information to adjust multi-media signal just by transport module TX
Put corresponding subordinate channel information formation radiofrequency signal and be loaded onto coaxial cable CL on or be generation show message, for example;Run
Barn lantern message etc., allow transport module TX can by the video-audio signal on horse race lamp message superposition to the multi-media signal modulation into
Radiofrequency signal.Input block 40 is received after user's input USIN, is converted into input signal to processor 42, processor 42 is again
Convert input signals into the first control data and transmit to modulator 44, the first control signal is converted into by modulator 44 again
One modulation control signal, and export to coupler 45.First modulation control signal is loaded onto on coaxial cable CL by coupler 45 again
Transmit to the transport module TX of distal end.Repeated after how handling first modulating signal, appearance as transport module TX.
Then illustrate, control module CB control receiver modules RX embodiment.In one embodiment, user passes through hand
Hold device SP and produce user input USIN, user input USIN contains a channel letter when control receiver module RX
Cease and want controlled corresponding receiving module, to allow the receiving module RX of controlled terminal to be changed certainly according to the channel information
Oneself current display channel information.It is noted that the input interface on hand-held device SP has user can be allowed to be selection
Which platform receiving module, and the input display channel information to be changed.Control module CB is received by input block 40 and come from
Hand-held device SP user's information, and convert thereof into input signal.Processor 42 have received input signal, and be converted
Into one second control data.Second control data is transferred to coupler 44 and is converted into one second modulation control signal, then passes through
Coaxial cable CL uploads are loaded onto by coupler 45 and transport to other receiving module RX.As for demodulation module DM function mode, its
Identical with Fig. 4 B demodulation module DM operating modes, therefore not to repeat here.
In addition, when the coupler 45 in control module CB is received from the second modulation control transmitted by other receiving modules RX
During signal processed, the second modulation control signal can be reached on demodulator 46, by 46 pairs of the second modulation control signals of demodulator
It is demodulated, the result of demodulation is transmitted to the processor 42.Processor 42 connects according to the result of the demodulation to determine whether to change
Receive the display channel information that module RX has.In one embodiment, the display channel information is present in demodulation module DM
Frequency modulator 54.When processor 42 judges to change the channel of receiving module according to the signal after demodulation, processor 42 produces one
Second control data is converted into the second control command CMD to frequency modulator 54 to transmitter 43, to carry out the change for showing channel information
More.In addition, in another embodiment, control module CB is if when controlling receiving module RX itself, can directly lead to
Cross user and input to input block 40, treated device 42 is converted into the second control data and is converted into the second control to transmitter 43
CMD is ordered to frequency modulator 54.
Next the receiving module embodiment of the explanation present invention, refer to Fig. 5, it illustrates distributing audio-video control system
In delivery module TX an embodiment.As shown in figure 5, delivery module TX comprising multi-media signal processor MP, synthesizer 12,
Second processor 13, demodulator 15, low pass filter 17 and audio-visual modulating module IMM.Wherein, multi-media signal processor MP
To decode the multi-media signal from audio-visual original device VI.Audio-visual original device VI can be computer either media play
The multi-media signal that device is exported, for example：HDIMI, DVI either AV signals etc., but be not limited system.In an embodiment
In, multi-media signal processor MP includes Sound Processor Unit 10 and image processor 11, and wherein Sound Processor Unit 10 is coupled
To audio-visual modulating module IMM；Image processor 11 is coupled to synthesizer 12；Synthesizer 12 is coupled to audio-visual modulating module IMM；The
Two processors 13 are coupled to synthesizer 12 and audio-visual modulating module IMM；Demodulator 15 is coupled to second processor 13；Low pass filtered
Ripple device 17 is coupled to demodulator 15；Audio-visual modulating module IMM couples low pass filter 17.To illustrate that, although this implementation
Example has synthesizer 12, but simultaneously non-invention implements transport module TX necessary component to the element, that is, if uses situation
In when having the demand of resultant image, the component can be added.
Assuming that only single multi-media signal AV is sent to delivery module TX.When delivery module TX receives multimedia letter
During number AV, multi-media signal processor MP decoding process multi-media signal AV and will produce multi-medium data, and it can be sound
Sound, image or sound add image.In the present embodiment, by taking the multi-media signal of sound plus image as an example, multi-media signal processing
Device MP produces voice data AD and image data VD to audio-visual modulation respectively by Sound Processor Unit 10 and image processor 11
Module IM M.Audio-visual modulating module IMM then by multi-medium data AD and VD according to subordinate channel information modulation into a radiofrequency signal.
In this embodiment, audio-visual modulating module IMM includes compression module 14, modulator 16 and mixing output module MO.Wherein, press
Contracting module 14 is respectively coupled to Sound Processor Unit 10, synthesizer 12 and modulator 16, to compress the multi-media signal as one
Compress multi-media signal.Modulator 16 couples frequency mixer 18 and compression module 14 is coupled, to connect compression multimedia letter
Number it is converted into a modulation multi-media signal.Mixing output module MO penetrates the multi-media signal modulation into one according to the subordinate channel
Frequency signal is simultaneously exported to the transmission media.In the present embodiment, mixing output module MO includes a frequency mixer 18 and channel coupling
Clutch 19, frequency mixer 18 is respectively coupled to second processor 13 and channel coupler 19, to according to subordinate channel information that this is more
Media signal modulation in pairs should subordinate channel information frequency band to form radiofrequency signal.And channel coupler 19 is then coupled to together
Axle cable CL, the radiofrequency signal is loaded onto on coaxial cable CL.It is noted that please refer to shown in Fig. 4 A and Fig. 5,
In the embodiment that control module CB is incorporated into transport module TX, coupler 45 can be formed integral with one another with channel coupler 19.
Next illustrate, transport module TX handles the mode of the first modulating signal from control module CB.When transmission mould
Block TX from coaxial cable CL receive the first modulation control signal when, the first modulation control signal can be respectively transmitted to low
Bandpass filter 17.Demodulator 15 is transferred into after the filtering process of the first modulation control signal via low pass filter 17,
And obtain the first control data CD after being demodulated via demodulator 15.Second processor 13 can be determined according to the first control data CD
The mode of control.In one embodiment, if first control data CD is to change the subordinate channel information, the usual control
The combination of each transport module and corresponding subordinate channel information can be contained in data processed, therefore second processor 13 can be according to this
Information judges current transport module TX change subordinate channel information whether in need, if so, can then produce control life
MC is made to frequency mixer 18 to control the frequency mixer 18 to change subordinate channel information.Once after changing subordinate channel information, then
Multi-media signal can also be changed by the channel corresponding to modulation with frequency band.In another embodiment, if first control data
If CD is time scheduling, then second processor 13 controls modulating module IMM by multi-media signal modulation according to the setting of time
Set into radiofrequency signal, or according to the time, control modulating module IMM change subordinate channel information.It is noted that foregoing
The change of the channel information, can be the either single disposable change of muptiple-use periodic change.In addition,
In another embodiment, display information DI can be contained in first control data CD, display information DI can be transferred to synthesis
Device 12,
After synthesizer 12 is respectively received image data VD and display information DI, synthesizer 12 is by display information DI and shadow
As data VD phase superpositions, to form superimposition image signal and be sent to compression module 14.In fact, display information DI can be intended to
The marquee character information either image information on signal of video signal VD is shown in, for example：Photo or animation etc., but not as
Limit.After compression module 14 is respectively received voice signal AD and superimposition image signal, compression module 14 by voice signal AD and
Superimposition image Signal Compression is compression multi-media signal and is sent to modulator 16.Modulator 16 will compress multi-media signal conversion
Into modulation multi-media signal and be sent to frequency mixer 18 and carry out modulation to form radiofrequency signal, then through channel coupler 19 export to
Coaxial cable CL.It is noted that the first control data of foregoing different aspects can also be carried out with the mode of combination, example
Such as：Change subordinate channel information can be combined with display information, allow transport module TX can be while carrying out change institute
Belong to channel information and output resultant image.
Fig. 6 is refer to, Fig. 6 illustrates another embodiment of the delivery module TX in distributing audio-video control system.Such as Fig. 6 institutes
Show, delivery module TX is substantially similar to Fig. 5, difference that there is an audio-visual switching in the transport module TX in the present embodiment
Cell S W, coupling second processor 13 and audio-visual modulating module IMM, audio-visual switch unit SW receive multiple multi-media signal sources
VI1~VI3.In having the embodiment of multisignal source, it can include in the first modulating signal for coming from control module CB and cut
Change the information in selection signal source, that is, an audio-visual source selection letter has been further included in first control data after decoding
The audio-visual source selection information is converted into a selection signal SC to control audio-visual switch unit SW many in this by breath, second processor 13
Switched between individual multi-media signal source VI1~VI3, it is corresponding to the multi-media signal source of the selection signal that it is more with offer
Media signal is inputted to audio-visual modulating module IMM.In the present embodiment, selection signal SC controls audio-visual switch unit SW to select it
One of behind multi-media signal source, corresponding multi-media signal can sound can be respectively by Sound Processor Unit 10 and shadow with image
As processor 11 carry out decoding process to form image and voice data, its follow-up action as it was previously stated, do not go to live in the household of one's in-laws on getting married herein
State.To illustrate that the transport module TX shown in Fig. 5 and Fig. 6 can be the transport module TX shown in Fig. 2A, 2B or 3A, 3B.
Next, should by the difference for illustrating above-mentioned distributing audio-video control system by different practical operation situations
With.Fig. 7 A and 7B are refer to, its first video and audio output device VO1 to the 3rd illustrated in distributing audio-video control system is audio-visual defeated
Go out device VO3 and play the first multi-media signal AV1, the second multi-media signal AV2 and the 3rd multi-media signal AV3 and change respectively
The embodiment of more channel.As shown in Figure 7 A, it is assumed that transport module TX1 subordinate channel information is the first channel CH1 of correspondence, transmission
The subordinate channel information that module TX2 subordinate channel information is correspondence the second channel CH2 and transport module TX3 is correspondence the 3rd
Channel CH3.Therefore the first multi-media signal AV1 can be transmitted module TX1 be loaded onto to should the first channel CH1 frequency band and formed
First radiofrequency signal, the second multi-media signal AV2 by corresponding transport module TX2 be loaded onto correspondence the second channel CH2 frequency band and
The second radiofrequency signal is formed, the 3rd multi-media signal AV3 is then loaded onto the 3rd channel CH3's of correspondence by corresponding transport module TX3
Frequency band is to form one the 3rd radiofrequency signal.Control module CB sends different output controls respectively by wirelessly or non-wirelessly mode to be believed
Number IR1~IR3 (respectively comprising the first channel information~the 3rd channel information) is audio-visual to the first video and audio output device VO1~3
Output device VO3, uses control the first video and audio output device VO1 to the 3rd video and audio output device VO3 and switches audio-visual output respectively
Device VO1~VO3 display channel information is to the channel CH3 of corresponding first channel CH1~the 3rd, therefore, the first audio-visual output
Device VO1 can respectively be received to the 3rd video and audio output device VO3 and be played the first multi-media signal AV1, the second multimedia letter
Number AV2 and the 3rd multi-media signal AV3.Though it is noted that not showing receiving module RX in Fig. 7 A, it is incorporated into audio-visual defeated
Go out in device VO1~VO3.
Under Fig. 7 A situation, if to change video and audio output device VO1~VO3 display content, such as：Audio-visual output
Device VO1 shows that multi-media signal AV3, video and audio output device VO2 show that multi-media signal AV1, video and audio output device VO3 are shown
During multi-media signal AV2, the display frequency that control signal IR3 changes video and audio output device VO1 can be produced by control module CB
Road information to corresponding CH3, change video and audio output device VO2 display channel information to audio-visual export of correspondence CH1 and change fills
VO3 display channel information is put to correspondence CH2.Therefore, the first video and audio output device VO1 to the 3rd video and audio output device VO3 is
Can respectively receive and play the 3rd multi-media signal AV3, the first multi-media signal AV1 and the second multi-media signal AV2 and export
Corresponding multimedia messages.
In addition, it is noted that in addition to being controlled with IR control command mode, in another embodiment, such as scheming
Shown in 7B, control module CB can also be transmitted audio-visual defeated to each using the second modulation control signal MS2 via coaxial cable CL
Go out module VO1~VO3 to change corresponding display channel information.In addition, in another embodiment, as seen in figure 7 c, controlling mould
Block CB can also export the first modulation control signal MS1 via transmission media, have transport module TX1 subordinate channel in it
Information changes the second channel CH2, and transport module TX2 subordinate channel information is changed into the 3rd channel CH3 and mould will be transmitted
Block TX3 subordinate channel information is changed to the first channel CH1 control data, therefore transport module TX1~TX3 in distal end connects
Receive after the first modulation control signal MS1, be demodulated and can be according to the channel of the content changing modulation of the change channel.Profit
With Fig. 7 C mode, then control module CB can be without controlling the channel of video and audio output device to change, direct controlling transmission module
TX1~3, can also equally produce the effect for allowing video and audio output device VO1~VO3 to change output multimedia messages.
It was found from Fig. 7 A to Fig. 7 C：User can be controlled by the control module CB of the distributing audio-video control system of the present invention
Make each video and audio output device either transport module and switch to different channel so that each video and audio output device can be received simultaneously respectively
Play the different multimedia signal that user wants.Wherein control video and audio output device changes the mode of channel, and more having to lead to
Cross coaxial cable transmission of control signals either by way of non-coaxial cable (for example：Infrared signal either RS485 has
The mode of line signal).In addition, using the first modulation control signal MS1 to control when, in the first modulation control signal MS1 even
Each multimedia can be believed according to time field data of scheduling information by including the control signal controlling transmission module TX of time field data of scheduling information
Number difference frequency modulation to correspondence different channel information different frequency bands, therefore the distributing audio-video control system of the present invention also can according to when
Between scheduling function reach the operation scenario that Fig. 7 A are realized in the very first time and Fig. 7 C operation scenario realized in the second time, with increase
That enters distributing audio-video control system uses elasticity and convenience.
Fig. 8 A are refer to, Fig. 8 A are illustrated realizes Image Segmentation (video using distributing audio-video control system of the present invention
Splitter embodiment).As shown in Figure 8 A, it is assumed that transport module TX1 subordinate channel information be correspondence the first channel CH1,
The subordinate channel information that transport module TX2 subordinate channel information is correspondence the second channel CH2 and transport module TX3 is correspondence
3rd channel CH3.Therefore the first multi-media signal AV1 can be transmitted module TX1 be loaded onto correspondence the first channel CH1 frequency band and shape
Into the first radiofrequency signal, the second multi-media signal AV2 is loaded onto the second channel CH2 of correspondence frequency band by corresponding transport module TX2
And the second radiofrequency signal is formed, the 3rd multi-media signal AV3 is then loaded onto the 3rd channel CH3 of correspondence by corresponding transport module TX3
Frequency band to form one the 3rd radiofrequency signal.If allowing each video and audio output device VO1~VO3 to show the shadow of specific channel
Picture so that the multimedia messages of each video and audio output device VO1~VO3 outputs are consistent and reach Image Segmentation (video
Splitter) the effect of display.Then control module CB sends identical output control signal respectively by wirelessly or non-wirelessly mode,
It contains a specific channel information, the video and audio output device of such as the first channel (CH1) to the first video and audio output device VO1~the 3rd
VO3, uses the display that the receiving module in control the first video and audio output device VO1~the 3rd video and audio output device VO3 has
Channel information switches to correspondence identical the first channel CH1, therefore, the first audio-visual outputs of video and audio output device VO1 to the 3rd
Device VO3 can be received and be played the first multi-media signal AV1.
Similarly, Fig. 8 B, Fig. 8 B be refer to illustrate and realize Image Segmentation using distributing audio-video control system of the present invention
Another embodiment of (video splitter).It is different from shown in Fig. 8 A and switching channels is controlled using IR control signals, this
Embodiment controls each video and audio output device VO1~VO3 to switch to identical channel using the second modulation control signal MS2,
Allow each video and audio output device VO1~VO3 to show identical multimedia messages, reach the effect that Image Segmentation is shown
Really, its principle is as it was previously stated, therefore not to repeat here.Transport module TX1~TX3 shown in foregoing 8A to Fig. 8 B is to use Fig. 5
Transport module framework produce the effect of Image Segmentation, in addition, in another embodiment, as shown in Figure 8 C, its transport module
TX1~TX3 can receive the transport module framework in multiple multi-media signal sources using as shown in Figure 6.Utilize Fig. 6 biography
Defeated module architectures, then coordinate the first modulation control signal MS1 that each video and audio output device VO1~VO3 can also be allowed to produce image
The effect of segmentation.In the present embodiment, there is the information of each transport module channel change, Yi Jixuan in the first modulating signal MS1
Select the information in multi-media signal source.Therefore when transport module TX1~TX3 receives the first modulation control signal, it can select
Corresponding multi-media signal source, for example：Multi-media signal AV3 is all selected in the present embodiment.Meanwhile, transport module TX1~TX3 roots
Subordinate channel information is changed according to the information of its channel setting, for example：In the present embodiment, transport module TX1 selections first
Channel CH1, transport module TX2 select the second channel TX2 and transport module TX3 to select the 3rd channel TX3.Last control module
As long as CB is by way of IR signals either the second modulation control signal by receiving module in video and audio output device VO1~VO3
The display channel that RX has is set, for example：Video and audio output device VO1 is set as the first channel CH1, video and audio output device
VO2 is set as that the second channel CH2 and video and audio output device VO3 are set as the 3rd channel CH3.So it can allow audio-visual output
Device VO1~VO3 output identical multimedia messages, produces the effect of Image Segmentation.
Compare Fig. 8 A to Fig. 8 C to understand：User can by the present invention distributing audio-video control system control module CB
Each video and audio output device is controlled to switch to same channel so that each video and audio output device, which can simultaneously receive and play user, to be thought
The same multi-media signal wanted, therefore the function of similar multi-media signal separator (splitter) can be reached, it can be applied to sell greatly
The television distribution area or other places for needing to carry out audio-visual broadcast of field.
In summary, distributing audio-video control system of the invention need not be specifically designed receiving terminal, and control module can be set
It is placed in optional position and carries out video signal switching scheduling planning and control, the infrared ray that can also arrange in pairs or groups carries out the channel selection control of display simultaneously
Immediately some transmission end of ordering shows horse race lamp message, along with only needing using the coaxial cable that has just set and transmission end originally
Link up, without extra increase circuit or network equipment, therefore the various shortcoming of prior art can be effectively improved, distributing is significantly increased
The use elasticity and convenience of audio-video control system.
It is a kind of audio-visual control method of distributing according to the another specific embodiment of the present invention.In this embodiment, disperse
The audio-visual control method of formula is applied to distributing audio-video control system, the framework shown in example Fig. 2A, 2B, 3A or 3B as the aforementioned.Should
Control method, includes the following steps, and an at least control module, at least a receiving module and at least one transmission mould are provided first
Block, it is mutually coupled with a transmission media respectively, and each transport module has a subordinate channel information, each receiving module respectively
There is a display channel information respectively.Then, an at least transport module is made respectively to be believed a multimedia according to the subordinate channel
Number modulation is into a radiofrequency signal and exports to the transmission media.Then, an at least receiving module is made respectively from the transmission media
An at least radiofrequency signal is received, each receiving module selects corresponding radiofrequency signal according to the display channel information, and should
Radiofrequency signal is reduced into corresponding multi-media signal.A last reselection at least control module therein produces modulation control
Signal, to change the display channel information of an at least receiving module therein or control at least one transmission mould therein
Block.Wherein, controlling the transport module to include controls the transport module to change its subordinate channel information, setting time scheduling, increase
Plus display information superposition either controls the transmission on the signal of video signal in multi-media signal with the image information for forming superposition
Module selects one of them in multiple audio-visual sources.
Fig. 9 A are refer to, Fig. 9 A illustrate the flow chart of the audio-visual control method of distributing in the present embodiment.Distributing is audio-visual
Control system includes transmission media, control module and transport module.As shown in Figure 9 A, in step S10, control module produces tune
Become control signal to transmission media.In step S12, transport module multimedia signal receiving simultaneously transmits media receiver modulation control certainly
Signal processed.In step S14, transport module more receives modulation control signal via transmission media, and by modulation control signal solution
A control command is tuned into, the content to control radiofrequency signal.It is noted that the content of the radiofrequency signal, includes radio frequency
Subordinate channel information corresponding to signal, or multi-media signal content, for example：In one embodiment, multi-media signal
Interior signal of video signal and the display information phase superposition of contained friend in control command, to form new multi-media signal.In addition, another
In one embodiment, due to including the selection signal of selection different multimedia signal source in control command, therefore it can change and penetrate
Multi-media signal content in frequency signal, also changes a kind of aspect of the radiofrequency signal content.
Refer to shown in Fig. 9 B, the figure is the flow chart of the audio-visual control method of distributing of the present invention.In the present embodiment,
It is that correspondence control module is arranged in receiving module, for example：3A and Fig. 3 B framework, operating process embodiment, in this implementation
In example, the control module that first can be arranged on step S10a in receiving module produces a modulation control signal；Then in step
In S12a, transport module receives multi-media signal, and receives modulation control signal from transmission media simultaneously.Then in step
In rapid S14a, transport module demodulates the modulation control signal and obtains control command, and is believed the multimedia according to the control command
Number modulation is into a radio signal transmission to transmission media.In step S16a, receiving module receives the radiofrequency signal, and should
Radiofrequency signal is reduced into corresponding multi-media signal output.
Then, Figure 10 is refer to, Figure 10 illustrates the sub-step that step S10 or S10a in Fig. 9 A or 9B are included.As schemed
Shown in 10, in step S100, control module receives and transmits an input signal.In step S102, control module is according to defeated
Enter signal and produce the first control data and/or the second control data.Wherein, the first control data includes channel information.Then,
Produced by this method execution step S103, judgment step S102 is the first control data, the second control data or the first control
Data processed and the second control data.If produced by step S102 is the first control data, this method performs step S104, by the
One control data modulation is spread out of into modulating signal and via transmission media.If produced by step S102 is the second control data,
This method performs step S106, and the second control data is converted into another control signal.If produced by step S102 is first
Control data and the second control data, this method perform step S108, by the first control data modulation into modulating signal and via
Transmission media is spread out of, and the second control data is converted into another control signal.
In addition, refer to Figure 11, Figure 11 illustrates the sub-step that step S14 or S14a in Fig. 9 A or 9B are included.As schemed
Shown in 11, in step S140, transport module demodulation becomes modulation control signal to obtain the first control data.In step S142
In, transport module provides control signal according to the channel information of the first control data.In step S144, transport module is according to control
Channel information contained by signal processed is by multi-media signal frequency modulation to the frequency band of correspondence channel information to form radiofrequency signal and export
To transmission media.
Compared to prior art, according to the distributing audio-video control system and the audio-visual control method of distributing of the present invention, tool
Have the advantage that：
(1) it is dispersible to set, it is adaptable to transmit over long distances, and receiving terminal RX need not be specifically designed.
(2) control module may be disposed at optional position, without being controlled in transmission end TX.
(3) control module can carry out video signal switching scheduling planning and control, and some transmission end TX display races of ordering immediately
Barn lantern message.
(4) control module can arrange in pairs or groups infrared ray can carry out receiving terminal RX display channel selection control.
(5) linked up, set without extra increase circuit or networking with transmission end TX using the coaxial cable just set originally
It is standby.
(6) control module also has the characteristic that multiple spot is set.
Pass through the above detailed description of preferred embodiments, it would be desirable to more clearly describe the feature and spirit of the present invention, and
Not scope of the invention is any limitation as with above-mentioned disclosed preferred embodiment.On the contrary, the purpose is to wish
Being arranged in the category of the scope of the claims to be applied of the invention for various changes and tool equality can be covered.
Claims (37)
1. a kind of distributing audio-video control system, comprising：
An at least control module, respectively to produce the one first modulation control signal transmitted via a transmission media；And
An at least transport module, is mutually coupled with the control module, and each transport module has a subordinate channel information, and root respectively
According to the subordinate channel by a multi-media signal modulation into a radiofrequency signal and export to the transmission media, each transport module is more passed through
The first modulation control signal is received by the transmission media, and the first modulation control signal is demodulated to a control command and held
The row control command；
Wherein, the control command contains a channel information, and the transport module decides whether to update the institute according to the channel information
Belong to channel information or the control command and more contain a time field data of scheduling information, to control the transport module to be believed according to the time scheduling
Cease by the multi-media signal frequency modulation to should subordinate channel information frequency band or be the control command more containing one display believe
Breath, the control command controls the transport module by the display information superposition signal of video signal contained into the multi-media signal,
And by the multi-media signal frequency modulation to should subordinate channel information frequency band.
2. distributing audio-video control system as claimed in claim 1, it is characterised in that further include an at least output module with being somebody's turn to do
Transmission media is mutually coupled, and each output module includes：
One receiving module, with a display channel information, the receiving module has a demodulation module, to via the transmission media
Selection corresponds to the radiofrequency signal of the display channel information and the radiofrequency signal is reduced into the multi-media signal；And
One video and audio output device, is coupled to receive the multi-media signal, and exported according to the multi-media signal with the receiving module
Corresponding audio-visual message；
Wherein the receiving module is independently disposed to outside the video and audio output device or is integrated in the video and audio output device, therein
One control module more controls an at least receiving module to change it and shows channel information, control command choosing by a control command
Be selected as transmitting with wire signal, one of transmission of wireless signals and the modulating signal that is transmitted via the transmission media.
3. distributing audio-video control system as claimed in claim 2, it is characterised in that each control module is included：
One input block, an input signal is produced to receive user input；
One processor, couples the input block, to produce one first control data and/or one second control according to the input signal
Data processed, second control data is to that should have a display channel information；
One modulating module, with the processor couple, to by the first control data modulation into the first modulation control signal, then
Spread out of via the transmission media；And
One transmitter, is coupled with the processor, second control data is converted into a wirelessly or non-wirelessly control command, is passed
To the receiving module that at least an output module has.
4. distributing audio-video control system as claimed in claim 3, it is characterised in that the modulating module more second controls this
Data-modulated is spread out of into one second modulation control signal, then via the transmission media, and the control module has been further included：
One demodulator, it is to receive with demodulating the second modulation control signal from other control modules, after demodulation
Signal reaches the processor；
Wherein, whether the processor will update the display channel information according to the signal deciding after demodulation, if then producing pair
To the transmitter wirelessly or non-wirelessly signal should be converted into second control data of signal after the demodulation, reach this at least one defeated
Go out the receiving module that module has.
5. distributing audio-video control system as claimed in claim 1, it is characterised in that the transport module is included：
One demodulator, to receive the modulation control signal transmitted via the transmission media, and demodulates modulation control
Signal is to obtain one first control data；
One processor, couples the demodulator, to provide the control command according to first control data；And
One audio-visual modulating module, to according to the subordinate channel by the multi-media signal modulation into the radiofrequency signal and export to should
Transmission media, the audio-visual modulating module more receives the control command, to control the content of the radiofrequency signal.
6. distributing audio-video control system as claimed in claim 5, it is characterised in that the audio-visual modulating module is further included：
One compression module, compresses the multi-media signal and compresses multi-media signal as one；
One modulator, couples with the compression module, the compression multi-media signal is converted into a modulation multi-media signal to connect；
And
One mixing output module, according to the subordinate channel information by the modulation multi-media signal modulation is into a radiofrequency signal and exports
To the transmission media, the channel information of the mixing output module more according to contained by the control command updates subordinate channel letter
Breath.
7. distributing audio-video control system as claimed in claim 6, it is characterised in that the control command has further included a display
Information, the transport module is further included：
One synthesizer, couples the processor and the compression module, to receive the display information and by the display information with being somebody's turn to do
Signal of video signal phase superposition in multi-media signal is simultaneously inputted to the compression module.
8. distributing audio-video control system as claimed in claim 5, it is characterised in that the transport module further includes one and audio-visual cut
Unit is changed, the processor and the audio-visual modulating module is coupled, the audio-visual switch unit receives multiple multi-media signal sources, the control
Order has further included an audio-visual source selection information, and the audio-visual source selection information is converted into a selection signal to control by the processor
The audio-visual switch unit is switched between the plurality of multi-media signal source, to provide the multimedia corresponding to the selection signal
Signal source inputs its multi-media signal to the audio-visual modulating module.
9. distributing audio-video control system as claimed in claim 1 a, it is characterised in that control module therein is integrated in
Within a transport module therein.
10. a kind of distributing audio-video control system, comprising：
An at least control module, is mutually coupled with a transmission media respectively, and each control module produces one first modulation control signal
To a transmission media；And
An at least receiving module, respectively with a display channel information, each receiving module is coupled and received with the transmission media
An at least radiofrequency signal, each receiving module selects corresponding radiofrequency signal according to the display channel information, and by the radio frequency
Signals revivification receives the first modulation control signal into corresponding multi-media signal, each receiving module by transmission media,
And the first modulation control signal demodulation is reduced into one first control command, and decided whether more according to first control command
The display channel information belonging to new.
11. distributing audio-video control system as claimed in claim 10, it is characterised in that the receiving module has been further included：
One demodulator, to receive the first modulation control signal transmitted via the transmission media, and demodulates the modulation
Control signal is to obtain one first control data；
One processor, couples the demodulator, to according to first control data decide whether update belonging to the display frequency
Road information, if it is provides first control command；
One demodulation module, to receive the radiofrequency signal via the transmission media and the radiofrequency signal is reduced into multimedia letter
Number and according to first control command update belonging to the display channel information.
12. distributing audio-video control system as claimed in claim 10, it is characterised in that each control module is included：
One input block, an input signal is produced to receive user input；
One processor, couples the input block, to according to the input signal produce one first control data and, this first control
Data are to that should have a channel information；
One modulating module, with the processor couple, to by the first control data modulation into the first modulation control signal, then
Spread out of via the transmission media；And
One transmitter, is coupled with the processor, first control data is converted into a wirelessly or non-wirelessly control command, is passed
To an at least receiving module.
13. distributing audio-video control system as claimed in claim 12, it is characterised in that the control module has been further included：
One demodulator, it is to receive with demodulating the first modulation control signal from other control modules, after demodulation
Signal reaches the processor；
Wherein, whether the processor will update the display channel information according to the signal deciding after demodulation, if then producing pair
To the transmitter wirelessly or non-wirelessly control command should be converted into first control data of signal after the demodulation, reach the reception
Module.
14. distributing audio-video control system as claimed in claim 13 a, it is characterised in that control module therein is more produced
One second modulation control signal, distributing audio-video control system has further included an at least transport module, each transport module tool
There is a subordinate channel information, each transport module receives a multi-media signal, and by the multi-media signal frequency modulation into corresponding to institute
Belong to the radiofrequency signal of the frequency band of channel information, and exported by transmission media, transmission matchmaker of each transport module more by connecting
Body receives the second modulation control signal, and the second modulation control signal demodulation is reduced into one second control command.
15. distributing audio-video control system as claimed in claim 14, it is characterised in that second control command contains a frequency
Road information, the transport module decides whether to update the subordinate channel information or second control command according to the channel information
More contain a time field data of scheduling information, with control the transport module according to the time field data of scheduling information by the multi-media signal frequency modulation to right
Should subordinate channel information frequency band or the second control command more contain a display information, the control command controls the transmission mould
Block is by the display information superposition signal of video signal contained into the multi-media signal, and by the multi-media signal frequency modulation to correspondence
The frequency band of the subordinate channel information.
16. distributing audio-video control system as claimed in claim 15, it is characterised in that the transport module is included：
One demodulator, to receive the modulation control signal transmitted via the transmission media, and demodulates modulation control
Signal is to obtain one second control data；
One processor, couples the demodulator, to provide a control command according to second control data；And
One audio-visual modulating module, to according to the subordinate channel by the multi-media signal modulation into the radiofrequency signal and export to should
Transmission media, the audio-visual modulating module is more according to the control command, to control the content of the radiofrequency signal.
17. distributing audio-video control system as claimed in claim 16, it is characterised in that the audio-visual modulating module is further included：
One compression module, compresses the multi-media signal and compresses multi-media signal as one；
One modulator, couples with the compression module, the compression multi-media signal is converted into a modulation multi-media signal to connect；
And
One mixing output module, according to the subordinate channel by the multi-media signal modulation is into a radiofrequency signal and exports to the transmission
Media, the channel information of the mixing output module more according to contained by the control command updates the subordinate channel information.
18. distributing audio-video control system as claimed in claim 17, it is characterised in that the control command has further included one and shown
Show information, the audio-visual modulating module is further included：
One synthesizer, couples the processor and the compression module, to receive the display information and by the display information with being somebody's turn to do
Signal of video signal phase superposition in multi-media signal is simultaneously inputted to the compression module.
19. distributing audio-video control system as claimed in claim 16, it is characterised in that it is audio-visual that the transport module further includes one
Switch unit, couples the processor and the audio-visual modulating module, and the audio-visual switch unit receives multiple multi-media signal sources, the control
Order processed has further included an audio-visual source selection information, and the audio-visual source selection information is converted into a selection signal to control by the processor
Make the audio-visual switch unit to switch between the plurality of multi-media signal source, to provide many matchmakers corresponding to the selection signal
Body signal source inputs its multi-media signal to the audio-visual modulating module.
20. distributing audio-video control system as claimed in claim 10, it is characterised in that each receiving module is more coupled with one
Video and audio output device, to receive the multi-media signal, and exports corresponding audio-visual message according to the multi-media signal, wherein should
Receiving module is independently disposed to outside the video and audio output device or is integrated in the video and audio output device.
21. distributing audio-video control system as claimed in claim 10 a, it is characterised in that control module therein is integrated and set
In the transport module being placed in one.
22. a kind of audio-visual control method of distributing, includes the following steps：
An at least control module, at least a receiving module and an at least transport module are provided, it is respectively with a transmission media phase
Mutually coupling, each transport module has a subordinate channel information respectively, and each receiving module has a display channel information respectively；
An at least transport module is set respectively into a radiofrequency signal and to be exported a multi-media signal modulation according to the subordinate channel
To the transmission media；
An at least receiving module is set to receive an at least radiofrequency signal from the transmission media respectively, each receiving module is aobvious according to this
Show that channel information selects corresponding radiofrequency signal, and the radiofrequency signal is reduced into corresponding multi-media signal；And
A selection at least control module therein produces a modulation control signal, to change an at least receiving module therein
Display channel information either controls an at least transport module therein.
23. the audio-visual control method of distributing as claimed in claim 22, it is characterised in that control an at least transport module more
Include and control the transport module to update the subordinate channel information, control the transport module according to a time field data of scheduling information that this is more
Media signal frequency modulation to should subordinate channel information frequency band, control the transport module by a display information superposition to many matchmakers
Contained signal of video signal in body signal, and by the multi-media signal frequency modulation to should subordinate channel information frequency band or
It is the combination of at least two foregoing control modes.
24. a kind of distributing audio-video control system, comprising：
Multiple transport modules, with multiple receiving modules, are all mutually coupled by a plurality of coaxial cable；
Each transport module is by video-audio signal frequency modulation belonging to one into penetrating belonging to one of the frequency band corresponding to a subordinate channel information
Frequency signal, and exported by coaxial cable；
Each receiving module display channel information belonging to selects the affiliated radiofrequency signal corresponding with the channel, and should
Affiliated radiofrequency signal is reduced into corresponding affiliated video-audio signal；
One receiving module, according to user's input interface by one first control command and one second control command distinguish modulation into
One first modulation control signal and the second modulation control signal, and exported by coaxial cable；
Other receiving modules, by coaxial cable to receive the first modulation control signal, and the modulation control signal are demodulated
It is reduced into first control command, and channel information is shown according to belonging to the first control command decides whether to update；
Other transport modules, by coaxial cable to receive the second modulation control signal, and by the second modulation control signal
Demodulation is reduced into second control command, and decides whether renewal subordinate channel information according to the second control command.
25. distributing audio-video control system as claimed in claim 24, it is characterised in that each receiving module is included：
One demodulation module, with the affiliated display channel information, to be received via the coaxial cable to affiliated frequency should be shown
The radiofrequency signal is simultaneously reduced into a multi-media signal by the radiofrequency signal of road information；
One input block, with user's input interface, an input signal is produced to receive user input；
One processor, couples the input block, to produce one first control command according to the input signal, the first control life
Order is to that should have a channel information；
One modulating module, with the processor couple, to by the first control command modulation into the first modulation control signal, then
Spread out of via the coaxial cable；And
One demodulator, it is reduced into from it to receive the first modulation control signal from other control modules
First control command of his control module and reach the processor decide whether to update belonging to display channel information, if at this
Reason device then exports first control command；And
One transmitter, is coupled with an internal wiring and the processor and the demodulation module, by first control command, to pass
Affiliated display channel information is updated to the demodulation module.
26. distributing audio-video control system as claimed in claim 24, it is characterised in that second control command contains a frequency
Road information, the transport module decides whether to update the subordinate channel information according to the channel information.
27. distributing audio-video control system as claimed in claim 25, it is characterised in that second control command more contains one
Time field data of scheduling information, with control the transport module according to the time field data of scheduling information by the multi-media signal frequency modulation to should belonging to
The frequency band of channel information.
28. distributing audio-video control system as claimed in claim 25, it is characterised in that second control command more contains one
Display information, the control command controls the transport module by the display information superposition image contained into the multi-media signal
Signal, and by the multi-media signal frequency modulation to should subordinate channel information frequency band.
29. distributing audio-video control system as claimed in claim 25, it is characterised in that the transport module is included：
One demodulator, to receive via the coaxial cable transmit the second modulation control signal, and demodulate this second
Modulation control signal is to obtain one second control data；
One processor, couples the demodulator, to provide one second control command according to second control data；And
One audio-visual modulating module, to according to the subordinate channel information by the multi-media signal modulation is into the radiofrequency signal and exports
To the coaxial cable, the audio-visual modulating module is more according to second control command, to control the content of the radiofrequency signal.
30. distributing audio-video control system as claimed in claim 29, it is characterised in that the audio-visual modulating module is further included：
One compression module, compresses the multi-media signal and compresses multi-media signal as one；
One modulator, couples with the compression module, the compression multi-media signal is converted into a modulation multi-media signal to connect；
And
One mixing output module, according to the subordinate channel by the multi-media signal modulation is into a radiofrequency signal and exports coaxial to this
Cable, channel information of the mixing output module more according to contained by second control command updates the subordinate channel information.
31. distributing audio-video control system as claimed in claim 30, it is characterised in that second control command has been further included
One display information, the audio-visual modulating module is further included：
One synthesizer, couples the processor and the compression module, to receive the display information and by the display information with being somebody's turn to do
Signal of video signal phase superposition in multi-media signal is simultaneously inputted to the compression module.
32. distributing audio-video control system as claimed in claim 29, it is characterised in that it is audio-visual that the transport module further includes one
Switch unit, couples the processor and the audio-visual modulating module, and the audio-visual switch unit receives multiple multi-media signal sources, and this
Two control commands have further included an audio-visual source selection information, and the audio-visual source selection information is converted into a selection signal by the processor
To control the audio-visual switch unit to be switched between the plurality of multi-media signal source, to provide being somebody's turn to do corresponding to the selection signal
Multi-media signal source inputs its multi-media signal to the audio-visual modulating module.
33. distributing audio-video control system as claimed in claim 25, it is characterised in that each receiving module is more coupled with one
Video and audio output device, to receive the multi-media signal, and exports corresponding audio-visual message according to the multi-media signal, wherein should
Receiving module is independently disposed to outside the video and audio output device or is integrated in the video and audio output device.
34. a kind of distributing audio-video control system, comprising：
Multiple transport modules, with multiple receiving modules, are all mutually coupled by a plurality of coaxial cable；
Each transport module by affiliated video-audio signal frequency modulation into the frequency band corresponding to subordinate channel information affiliated radiofrequency signal,
And exported by coaxial cable；
Each receiving module display channel information belonging to selects the affiliated radiofrequency signal corresponding with the channel, and should
Radiofrequency signal is reduced into corresponding affiliated video-audio signal；
One receiving module can be according to user's input interface, and by a control command, modulation passes through into a modulation control signal
Coaxial cable is exported；And
Other receiving modules, are reduced by coaxial cable with receiving the modulation control signal, and the modulation control signal being demodulated
Decide whether renewal subordinate channel information into the control command, and according to the control command.
35. distributing audio-video control system as claimed in claim 34, it is characterised in that each receiving module is included：
One demodulation module, with the affiliated display channel information, to be received via the coaxial cable to affiliated frequency should be shown
The radiofrequency signal is simultaneously reduced into a multi-media signal by the radiofrequency signal of road information；
One input block, with user's input interface, an input signal is produced to receive user input；
One processor, couples the input block, to produce the control command according to the input signal, control command correspondence
There is a channel information；
One modulating module, is coupled with the processor, to by the control command modulation into the modulation control signal, it is then same via this
Axle cable is spread out of；And
One demodulator, it is reduced into from other controls to receive the modulation control signal from other control modules
The control command of molding block reaches the processor and decides whether to update affiliated display channel information, if then the processor is exported
The control command；And
One transmitter, is coupled with an internal wiring and the processor and the demodulation module, the control command is reached into this
Demodulation module shows channel information belonging to updating.
36. distributing audio-video control system as claimed in claim 35, it is characterised in that each receiving module is more coupled with one
Video and audio output device, to receive the multi-media signal, and exports corresponding audio-visual message according to the multi-media signal, wherein should
Receiving module is independently disposed to outside the video and audio output device or is integrated in the video and audio output device.
37. a kind of audio-visual control method of distributing, applied to a distributing audio-video control system, the distributing audio-video control system
Comprising a transmission media, a receiving module and a transport module, this method are comprised the steps of：
(a) receiving module produces a modulation control signal to the transmission media；
(b) transport module receives a video-audio signal and receives the modulation control signal from the transmission media；
(c) transport module demodulates the modulation control signal to form one first control signal, and is believed according to first control
Number by the video-audio signal modulation into a radiofrequency signal to the transmission media；And
(d) receiving module receives the radiofrequency signal, and the radiofrequency signal is reduced into corresponding video-audio signal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102124210A TWI498001B (en) | 2013-07-05 | 2013-07-05 | Distributed video control system and distributed video control method |
| TW102124210 | 2013-07-05 |
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| CN104284100A CN104284100A (en) | 2015-01-14 |
| CN104284100B true CN104284100B (en) | 2017-10-24 |
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| CN201310433386.0A Active CN104284100B (en) | 2013-07-05 | 2013-09-22 | Distributed video control system and distributed video control method |
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| TW (1) | TWI498001B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI825871B (en) * | 2022-07-25 | 2023-12-11 | 瑞昱半導體股份有限公司 | Video and audio data managing system |
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| Publication number | Publication date |
|---|---|
| TWI498001B (en) | 2015-08-21 |
| TW201503702A (en) | 2015-01-16 |
| CN104284100A (en) | 2015-01-14 |
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