CN2726248Y - Remote-single channel output concentrating controller suitable for D/A television concentrating control - Google Patents
Remote-single channel output concentrating controller suitable for D/A television concentrating control Download PDFInfo
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- CN2726248Y CN2726248Y CNU2004200614537U CN200420061453U CN2726248Y CN 2726248 Y CN2726248 Y CN 2726248Y CN U2004200614537 U CNU2004200614537 U CN U2004200614537U CN 200420061453 U CN200420061453 U CN 200420061453U CN 2726248 Y CN2726248 Y CN 2726248Y
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Abstract
The utility model discloses a remote-single channel output concentrating controller suitable for D/A television concentrating control, comprising a casing, an input port, an output port and an integrated circuit. The integrated circuit comprises an attenuation circuit, an equalization circuit, an amplification circuit, a distribution network matrix circuit, a frequency conversion circuit, a descrambling control circuit, a demodulation and decipherment circuit, a data separation circuit and an SCM CPU. The method of the remote-single channel output can be realized on the basis of 'signal processing' plus 'passage processing'. The simulation, the digital wire television and the descrambling are more effective and reliable, and safer. The simulation can be realized to smoothly transit into the digital wire television. The digit can be on when a user wants to watch the digit; the simulation can be on when the user wants to watch the simulation. The digit and the simulation can be both watched at the same time. The utility model has more individualization, and is more favorable for the entity translation of the digitization.
Description
Technical field:
The utility model relates to the CA Conditional Access control device technology of a kind of digital cable TV (DVB-C) and analog catv compatibility, particularly is applicable to the line concentration controller of the single channel output of a kind of digital simulation TV line concentration control remote control.
Be a kind of new television system on the related technical spirit in the application of the present utility model, be referred to as the integrated application of new and high technologies such as DVB digital video-audio broadcast technology, digital television transfer technology, Digital Signal Processing, computer software technology, DSP microprocessor technology, CA condition reception technique, modern data transmission technology, high frequency microelectric technique, network technology, The Interactive Multimedia Technology usually.
Background technology:
Existing broadcast television signal comprises Digital Television and anolog TV signals, and Digital Television becomes the developing direction of current broadcast television technique with its good signal image performance and transmission process performance.Simultaneously pay TV has also more satisfied the needs of different levels, but the harmful effect that problem is brought because problem of piracy, stealing signal, private are drawn disorderly and connect, malice is in arrears with etc. has seriously hindered the development of wired broadcasting TV network.
The arrival of Digital Television is rouse oneself for undoubtedly one of operator and wishes, and the CA encryption condition reception of all placing hope on numeral realizes the purpose of charging by top box of digital machine.The transmission of Digital Television still utilizes original cable TV network to be sent to huge numbers of families, the accepting device of user's receiving terminal all is simulated television basically, just impossible directly receiving digital signals, need special-purpose digital signal processing apparatus, convert the digital signal that receives to anolog TV signals again and just can make the simulated television of receiving terminal watch the TV signal that is transformed into simulation by numeral.The household electrical appliance that Here it is is referred to as usually " top box of digital machine " are finished this conversion work.In fact, Digital Television is carried out the reception of CA encryption condition and deposit big following problem: at first, the whole system Costco Wholesale is big, and particularly CA encryption condition receives very expensive.The price of the top box of digital machine in the second, one family is too high, and the user is difficult to accept.The 3rd, can suffer hacker's attack equally, appearance piracy is blocked and is cracked, and can private draw random connecing equally in user family, separates signal steathily, equally makes customer churn, and the unregistered household increases, and charge is difficulty equally.The 4th, increase maintenance capacity, owing to crack in the family or other factors are easy to generate human failure, make the cable television operator be busy with maintenance.The 5th, be unfavorable for transmitted in both directions.The reverse influx noise of " household electrical appliance " mode is big, oppositely converges balanced religion difficulty.
On the other hand, the concrete technical solution of the CA condition of simulated television reception can be divided into three major types:
1, passage processing mode: be exactly not scrambling of front end, turn-off endways or the addressable charge management system (rower GY/T153-2000) of scrambling, as shown in Figure 1.At front end TV signal is not done any processing and just transmit on main line, when signal arrives terminal distribution network, distribute by terminal hub, the decay that TV signal is carried out all-channel is turn-offed (or scrambling) and is reached control to the terminal use.This type systematic biggest advantage is with low cost, and only needing increases Subscriber Management System at cable TV station's front end, increases the address signal allocation matrix at user side.Because it is subscriber-coded that this type systematic just increases in cable TV signal, cable TV signal is not handled, but also therefore make this type systematic deposit big very big defective aspect fail safe and the reliability, because TV signal without any encryption measures, is directly obtained TV signal and is surreptitiously looked thereby the user can walk around the line concentration distributor.Other one big defective also occurs among the validated user man.For example handed over the license fee of 10 yuans in every month, he can be shared with this signal and neighbour's, even an amplifier is installed at home signal is amplified, and signal is provided for a sub-district, and everybody freely watches.This is difficult to the effect that the condition that plays receives, and practicality is relatively poor.
2, signal processing mode: carry out scrambling (rower GY/T141-1999) at front end exactly, as shown in Figure 2, promptly cable TV signal is added certain specific technology and disturb, form the scrambled television signal.Before entering user's television set, the user goes back original image and normally watches by special-purpose descrambler (or claiming set-top box) ability descrambling.Biggest advantage is exactly that original distribution network is not done any change, and user oneself can install a set-top box as long as mandate just can have been watched through cable TV, and is simple and convenient concerning wired TV station, can carry out the paying of increment channel and watch.Shortcoming is: (1) descrambling set-top box is on the high side, be subjected to cost restriction and be difficult in whole wired network carrying out, and investment is bigger, and wired TV station also can't bear.(2) set-top box that has (refer to group separate) also can spread, and after the reduction of set-top box descrambling, can watch or amplifies, expands to wider to neighbours equally.(3) no matter be that the set-top box that the group separates or singly separates also has top box of digital machine, all being a kind of " household electrical appliance " equipment, is to use in user family, and poor stability and maintenance difficulties are big, also cause easy deciphering because of occupation mode.(4) transmitted in both directions poor performance.
3, mixed processing mode: promptly " signal processing " adds " passage processing " mode, and as shown in Figure 3, this mode has open in Chinese patent: ZL01247209.3 and ZL01108710.2.This technology has overcome the shortcoming of above-mentioned dual mode, has developed their advantage.The set-top box of " household electrical appliance " has been become " network equipment ", at home can also can the descrambling rating without set-top box, but it does not still solve the compatibling problem that how to prevent diffusion signal problem and Digital Television as the first kind in user family, the use problem of top box of digital machine.
In sum, the charge that the CA condition of Digital Television or simulated television receives cable TV network all exists deficiency and defective, particularly progressively replace in the process of simulated television in Digital Television, under Digital Television and simulated television and the situation of depositing, to use the CA condition of analog-and digital-TV to receive two cover systems respectively, increased the input of cable TV station like this, can't reliable and effective charge and stop to connect steathily, surreptitiously look, crack numeral, analog catv signal anywhere.Can not more can not effectively carry out multiple value-added service control and management in mould, the compatible transmission control and management of number transitional period.
Summary of the invention:
Goal of the invention of the present utility model provides a kind of line concentration controller that is applicable to the single channel output of a kind of digital simulation TV line concentration control remote control, this line concentration controller can guarantee to add in " signal processing " realization of the single channel output intent of remote control on the basis of " passage processing " mode, make simulation, digital cable TV add descrambling more effectively, reliable, safety.Can not transmit diffusion arbitrarily especially in user family, it is impossible fully that attempt anywhere connects, surreptitiously looks, cracks TV signal steathily, and the condition that can really finish numeral and analog catv receives.Realized the smooth transition of simulation-to-digital cable TV simultaneously.Want to see that for the user numeral just opens numeral; Want to see that simulation just opens simulation; Number, mould with see can, personalized more, adapt to the selection of autonomy-oriented more, help digitized integral translation more.This can advance the development process of Digital Television greatly.
Concrete technical scheme of the present utility model is as follows:
A kind of line concentration controller that is applicable to the single channel output of a kind of digital simulation TV line concentration control remote control, comprise casing, input port, output port, integrated circuit, described integrated circuit comprises attenuator circuit, equalizing circuit, amplifying circuit, the distribution network matrix circuit, frequency-conversion circuit, the descrambling control circuit, the demodulation decrypt circuit, data separation circuit and singlechip CPU, it is characterized in that: described line concentration controller improves the cable TV signal that receives the flatness of cable TV signal behind attenuator circuit 201 and equalizing circuit 202, improve the effect that descrambling restores, enter amplifying circuit 203 again, cable TV signal after the amplification is divided into two road signals: the one tunnel enters distribution network matrix 206 distributes a plurality of users, sends into respectively to have I again
2The frequency-conversion circuit 207 of the total line traffic control of C carries out frequency translation, the cable television channels of 48.5-870MHz frequency range is transformed into single channel, when channel change is watched different program, by the remote controller in the user family 211, reception in the telecontrol room 210, receive head and receive the descrambling control circuit that is up to after the remote signal in the hub, send into again through the descrambling control circuit that data separation circuit 208 carries out the separation of control data signal and shaping, amplification is sent into singlechip CPU (205) again and handled; Another road cable TV signal is sent into demodulator 204 and is carried out demodulation and decrypt address signal, current this user's behaviour in service signal and descramble signal, the data-signal that enters CPU (205) and the isolated request channel change of earlier data respectively carries out after comprehensive distinguishing, the contrast making determining whether this user is implemented output and descrambling to the request channel program by CPU again, the paid in this way validated user that takes, then export the TV signal of descrambling reduction, otherwise do not export also not descrambling.The descrambling control action of line concentration controller is that digital and analog signaling is carried out the CA Conditional Access, thereby realizes the toll administration to Digital Television and simulated television.As Fig. 7.
Attenuator circuit described in the utility model, equalizing circuit and amplifying circuit all are conventional some signal processing circuits.
Distribution network matrix circuit described in the utility model comprises distribution network matrix and switch gating matrix, the distribution network matrix circuit is connected with amplifying circuit with singlechip CPU, and be communicated with frequency-conversion circuit and descrambling control circuit, under the control of signal after attenuation equalization is amplified in singlechip CPU, what contrast distribution network matrix and singlechip CPU were sent carries out demodulation and decrypts address signal through the demodulation decrypt circuit, current this user's behaviour in service signal and descramble signal, singlechip CPU IC5-1 sends the instruction branch of whether carrying out descrambling and is clipped to the distribution network matrix circuit after examining, channel conversion circuit and descrambling control circuit, carrying out descrambling by the switch gating matrix in the distribution network matrix circuit instructs reduction TV programme or execution to close cut-off signal instruction, the descrambling control circuit relevant work descrambling or the not descrambling of not working.
Frequency-conversion circuit described in the utility model comprises filter, amplifier, first frequency mixer, second frequency mixer, phase-locked loop, amplify through behind the filter from the signal after the processing of distribution network matrix circuit, cable TV signal with the 48.5-870MHz frequency range, again through first frequency mixer, under the control of singlechip CPU, high-frequency signal to phase-locked loop control back output 2000MHz, once more through filter, amplifier to second frequency mixer, the high-frequency signal with the 2000MHz frequency after filtering is amplified is downconverted into single channel output in the control of singlechip CPU.
Comprise IC9-1 and IC9-2 chip, VD9-1 and VD9-2 triode in the descrambling control circuit described in the utility model, under the control of singlechip CPU, signal is imported data separation circuit carry out the separation of control data signal and shaping, amplification; And accept or transmission receives the remote signal of head from remote controller.
Data separation circuit described in the utility model receives the control data signal of handling from through the descrambling control circuit, and will control data signal separates and shaping, be transferred in the singlechip CPU after amplifying.
Demodulator described in the utility model is the demodulation decrypt circuit, and adopting model is the chip of IC4-1 and IC4-2, is transferred among the IC5-1 and IC5-2 of singlechip CPU after the signal demodulation deciphering after the balanced amplification of self damping in the future.
What each delivery outlet of line concentration controller described in the utility model was exported is single channel, and a line concentration controller has 2 delivery outlets at least.Its process is, the cable TV signal of scrambling is divided into two-way, to wherein one the tunnel send into allocation matrix, lead up to data demodulates, solve address, conditional code and descramble signal respectively, meanwhile the remote controller by the user, remote control also enters the CPU microprocessor simultaneously to the data-signal of the channel of wanting to watch, confirm to judge that through CPU this channel user has paid the fees and can watch, CPU sent the descrambling instruction again and opened this user this moment, allowed its reduction watch.Otherwise send not this channel instruction of descrambling and turn-off this subscriber channel, make this user can not receive signal and can't watch.For digital television signal too, if remote control is this digital TV channel, is again validated user, then the Digital Television descrambling is reduced into the digital television signal of not scrambling, send into the top box of digital machine demultiplexing again, decompressing is reduced into analog signal and enters television set and can watch.If this user is the expense of intersection number word TV not,,, also can not receive digital television signal even there is top box of digital machine also of no use to this family descrambling no-output again neither.
The utlity model has good fail safe, confidentiality and signal handling capacity, cost performance is high, and function is so powerful but price is not high, is easy to be accepted by the user; Can guarantee to add the realization of the single channel output intent of remote control on the basis of " passage processing " mode in " signal processing ", make simulation, digital cable TV add descrambling more effectively, reliable, safety.Can not transmit diffusion arbitrarily especially in user family, it is impossible fully that attempt anywhere connects, surreptitiously looks, cracks TV signal steathily, and the condition that can really finish numeral and analog catv receives.Realized the smooth transition of simulation-to-digital cable TV simultaneously.Want to see that for the user numeral just opens numeral; Want to see that simulation just opens simulation; Number, mould with see can, personalized more, adapt to the selection of autonomy-oriented more, help digitized integral translation more.This can advance the development process of Digital Television greatly.
Accompanying drawing and drawing explanation:
The flow chart of the single channel output of Fig. 1 digital simulation TV described in the utility model line concentration control remote control
Fig. 2 planar structure schematic diagram of facing of the present utility model
Fig. 3 circuit theory logic diagram of the present utility model
Fig. 4 decay described in the utility model, equilibrium, amplification electrical schematic diagram
Fig. 5 distribution network matrix described in the utility model, switch gating matrix theory diagram
Fig. 6 distribution network electrical schematic diagram described in the utility model
Fig. 7 frequency translation electrical schematic diagram described in the utility model
Fig. 8 descrambling control described in the utility model ReSet Circuit schematic diagram
Fig. 9 data separating control described in the utility model electrical schematic diagram
Figure 10 demodulation deciphering described in the utility model and CPU control electrical schematic diagram
Figure 11 has passage processing mode addressable charge system principle diagram
The existing signal processing mode of Figure 12 adds descrambling Fare Collection System theory diagram
The existing patent ZL01247209.3 hybrid mode of Figure 13 adds descrambling Fare Collection System theory diagram
Figure 14 numeral described in the utility model, simulation scrambling flow chart
Figure 15 planar structure schematic diagram of looking up of the present utility model
Embodiment:
Embodiment 1:
As Fig. 2,3,4,5,6,7,8,9,10
A kind of line concentration controller that is applicable to the single channel output of a kind of digital simulation TV line concentration control remote control, comprise casing, input port, output port, integrated circuit, described integrated circuit comprises attenuator circuit, equalizing circuit, amplifying circuit, the distribution network matrix circuit, frequency-conversion circuit, the descrambling control circuit, the demodulation decrypt circuit, data separation circuit and singlechip CPU, it is characterized in that: described line concentration controller improves the cable TV signal that receives the flatness of cable TV signal behind attenuator circuit 201 and equalizing circuit 202, improve the effect that descrambling restores, enter amplifying circuit 203 again, cable TV signal after the amplification is divided into two road signals: the one tunnel enters distribution network matrix 206 distributes a plurality of users, sends into respectively to have I again
2The frequency-conversion circuit 207 of the total line traffic control of C carries out frequency translation, the cable television channels of 48.5-870MHz frequency range is transformed into single channel, when channel change is watched different program, by the remote controller in the user family 211, reception in the telecontrol room 210, receive head and receive the descrambling control circuit that is up to after the remote signal in the hub, send into again through the descrambling control circuit that data separation circuit 208 carries out the separation of control data signal and shaping, amplification is sent into singlechip CPU (205) again and handled; Another road cable TV signal is sent into demodulator 204 and is carried out demodulation and decrypt address signal, current this user's behaviour in service signal and descramble signal, the data-signal that enters CPU (205) and the isolated request channel change of earlier data respectively carries out after comprehensive distinguishing, the contrast making determining whether this user is implemented output and descrambling to the request channel program by CPU again, the paid in this way validated user that takes, then export the TV signal of descrambling reduction, otherwise do not export also not descrambling.The descrambling control action of line concentration controller is that digital and analog signaling is carried out the CA Conditional Access, thereby realizes the toll administration to Digital Television and simulated television.As Fig. 7.
Attenuator circuit described in the utility model, equalizing circuit and amplifying circuit all are conventional some signal processing circuits.
Distribution network matrix circuit described in the utility model comprises distribution network matrix and switch gating matrix, the distribution network matrix circuit is connected with amplifying circuit with singlechip CPU, and be communicated with frequency-conversion circuit and descrambling control circuit, under the control of signal after attenuation equalization is amplified in singlechip CPU, what contrast distribution network matrix and singlechip CPU were sent carries out demodulation and decrypts address signal through the demodulation decrypt circuit, current this user's behaviour in service signal and descramble signal, singlechip CPU IC5-1 sends the instruction branch of whether carrying out descrambling and is clipped to the distribution network matrix circuit after examining, channel conversion circuit and descrambling control circuit, carrying out descrambling by the switch gating matrix in the distribution network matrix circuit instructs reduction TV programme or execution to close cut-off signal instruction, the descrambling control circuit relevant work descrambling or the not descrambling of not working.
Frequency-conversion circuit described in the utility model comprises filter, amplifier, first frequency mixer, second frequency mixer, phase-locked loop, amplify through behind the filter from the signal after the processing of distribution network matrix circuit, cable TV signal with the 48.5-870MHz frequency range, again through first frequency mixer, under the control of singlechip CPU, high-frequency signal to phase-locked loop control back output 2000MHz, once more through filter, amplifier to second frequency mixer, the high-frequency signal with the 2000MHz frequency after filtering is amplified is downconverted into single channel output in the control of singlechip CPU.
Descrambling control circuit described in the utility model comprises IC9-1 and IC9-2 chip, VD9-1 and VD9-2 triode, under the control of singlechip CPU, signal is imported data separation circuit carry out the separation of control data signal and shaping, amplification; And accept or transmission receives the remote signal of head from remote controller.Data separation circuit described in the utility model receives the control data signal of handling from through the descrambling control circuit, and will control data signal separates and shaping, be transferred in the singlechip CPU after amplifying.
Demodulator described in the utility model is the demodulation decrypt circuit, and adopting model is the chip of IC4-1 and IC4-2, is transferred among the IC5-1 and IC5-2 of singlechip CPU after the signal demodulation deciphering after the balanced amplification of self damping in the future.
What each delivery outlet of line concentration controller described in the utility model was exported is single channel, and a line concentration controller has 2 delivery outlets at least.Its process is, the cable TV signal of scrambling is divided into two-way, to wherein one the tunnel send into allocation matrix, lead up to data demodulates, solve address, conditional code and descramble signal respectively, meanwhile the remote controller by the user, remote control also enters the CPU microprocessor simultaneously to the data-signal of the channel of wanting to watch, confirm to judge that through CPU this channel user has paid the fees and can watch, CPU sent the descrambling instruction again and opened this user this moment, allowed its reduction watch.Otherwise send not this channel instruction of descrambling and turn-off this subscriber channel, make this user can not receive signal and can't watch.For digital television signal too, if remote control is this digital TV channel, is again validated user, then the Digital Television descrambling is reduced into the digital television signal of not scrambling, send into the top box of digital machine demultiplexing again, decompressing is reduced into analog signal and enters television set and can watch.If this user is the expense of intersection number word TV not,,, also can not receive digital television signal even there is top box of digital machine also of no use to this family descrambling no-output again neither.
As Fig. 1
The utility model is as descrambler and in the method for the single channel output of suitable digital simulation TV line concentration control remote control, this method comprises front end TV station signal output apparatus, HFC transmission network, line concentration descrambling controller, user terminal distribution network device, comprises following process steps:
A, through the encoder of front end TV station signal output apparatus, to digital television signal is that vision signal is carried out mould, transformation of variables, press the Moving Picture Experts Group-2 encoding compression, form elementary stream, carry out again that the multiplexing formation data flow of multiplexer enters the QAM modulation and upconverter becomes the Digital Television radiofrequency signal;
B, through the Frame Synchro of front end TV station signal output apparatus, the video signal source of analog signal is corrected into the synchronous head of multi-channel video signal synchronously with frame synchronization and the multi-channel video signal of homophase and become the radiofrequency signal of different channel through modulators modulate;
C, through the blender of front end TV station signal output apparatus, digital signal, the analog signal of multichannel different channel is mixed into the cable TV radiofrequency signal;
D, through the scrambling machine of front end TV station signal output apparatus, simulation generates the trip field sync signal, and all radiofrequency signals are carried out the synchronizing signal compression that decays at random, to simulate, the scrambling of digital cable TV;
E, the supervisory computer by front end TV station signal output apparatus are sent user code, state of a control sign indicating number and the channel code of paying into data encryption modulator packaging ciphering modulation back and are formed radiofrequency signal and be mixed into one road cable TV signal with the cable TV radiofrequency signal of scrambling through blender again;
F, the cable TV signal of scrambling, by the HFC transmission network, enter line concentration terminal descrambling controller, independent respectively control and the above user in management at least 1 family, control to each user respectively by the corresponding coaxial cable of controlling number of users of line concentration controller output, by the management of front end mandate automation, in user terminal distribution network device, each user independently adopts a remote controller to carry out the selection of channel.
The utility model is as the descrambler in the single channel output intent of digital simulation TV line concentration controller remote control, and the effect of its descrambling is that digital and analog signaling is carried out the CA Conditional Access, thereby realizes the toll administration to Digital Television and simulated television.Cable TV signal enters in the line concentration descrambling controller and after 201 equilibriums 202 that decay the cable TV signal flatness is improved, and improves the effect that descrambling restores.Enter and amplify 203, the cable TV signal after the amplification is divided into two-way, and one the tunnel enters distribution network matrix 206 distributes the 2-24 family, sends into respectively to have I again
2The frequency-conversion circuit 207 of the total line traffic control of C carries out frequency translation, and the cable television channels of 48.5-870MHz frequency range is transformed into a channel, exports as 1 channel (48.556.5MHz).When watching different program as changing channel change, by the remote controller in the user family 211, reception in the telecontrol room 210, the reception head receives the descrambling that is up in the line concentration controller after the remote signal and controls channel splitting circuit, send into data separating 208 again through channel splitting circuit and carry out the separation of control data signal, isolated channel information is sent into singlechip CPU (205) again and is handled through shaping, amplification.Another road cable TV signal is sent into demodulator 204 and is carried out demodulation and decrypt address signal, and current this user's behaviour in service signal and descramble signal enter the output and the descrambling of the isolated request channel program of CPU IC5-1 and earlier data respectively.If the validated user of having authorized, then CPU makes and determines whether this user is implemented output and descrambling to the request channel program.If the validated user of having authorized, then CPU IC5-1 sends the instruction branch and is clipped to distribution network 206, and channel conversion circuit 207 and descrambling control circuit 209 are carried out descrambling instruction reduction TV programme, and this user normally watches.Otherwise distribution network 206 is carried out and is closed cut-off signal, and this moment, the channel conversion circuit 207 was also closed undelegated channel program simultaneously, and descrambling control circuit 209 do not work yet, descrambling not, and this moment, this user then selected less than seeing channel.At this moment the signal of disturbing is not still understood in output, and does not just have signal output at all.Want to use other omnipotent descrambling set-top box or top box of digital machine all not to have effect, definitely do not crack.So long as the disabled user does not definitely illegally see TV yet, unique want to see TV definitely to pay dues become validated user can the descrambling rating.
The utility model has conclusive effect in the method for concentrating controller in digital analog Tv-set remote controlled single channel output, have the following advantages:
(1) after the input signal of the input port of line concentration descrambling controller carries out scrambling by front end Scrambled signals (containing digital television signal), rather than the TV signal of not scrambling. Walking around hub, Attempt connect steathily signal and just becomes meaningless before the input port, be because pick out steathily the signal that comes There is not visual TV signal (the containing digital television signal) of scrambling.
(2) in line concentration controller, to carry out control and management to each user's rating. It is the right of way pipe Reason, the again whether management of descrambling, i.e. usually said " signal processing mode " and " passage processing side Formula " double insurance.
(3) a coaxial line house lead in is only arranged in user family, do not have omnipotent descrambling machine or DTV " pirate card " illegally cracks problem, and it is that the STB of " household electrical appliance " has been become " network equipment " Line concentration controller, this point has innovation, absolute dual fail-safe.
(4) have anti-theft feature, connecing steathily signal does not anywhere all have effect. Impossible in user family Stealing and connect, namely is exactly that two or multiple TV set are arranged in the same user family, also can only watch same electricity Depending on program. Want every television set and see the program of oneself liking, just must be to the operation cable management The family rating is expanded in two or many of department's applications, and pays certain expansion user costs and increase license fee After, can open, it is not all right not paying certain expense to operation cable administrative department, is exhausted Connect to can not appearance privately expanding the family and stealing that phenomenon takes place. This has just really thoroughly wiped out unregistered household and one The administrative vulnerability at many families.
(5) the one, can realize the mouthpiece effect of Party and government, accomplish freely to watch as in 1, in 2 or Economize platform; The 2nd, basic license fee can only be watched basic channel; The 3rd, pay TV can by channel sell or View as a whole; The 4th, for the so real operation cable pipe of having realized of the same so management of DTV Reason person dreams of, and money the more sees, money sees less, no money do not see (in maybe can only watching 1, in 2 Or province's platform program) control and management. This is increment individual service truly, more adapts to autonomous The selection of changing.
(6) use line concentration descrambling controller mode itself just to solve " last kilometer problem ". It does not produce Give birth to additional interference and noise. Collective noise can be reduced to minimum. Be easy to converge equilibrium. Favourable Thereby realize transmitted in both directions in bidirectional rebuilding.
(7) fully compatible with DTV, realized the translation transition of simulated television to DTV, this Can advance greatly the universal process of DTV. Exactly all digitlizations can equally make by descrambling too With right of way control the user is opened or turn-off management, implement dual control, to the production of top box of digital machine also Become simple, open, standard also can be installed in the television set and form " integrated digital television ", This has epoch-making meaning.
(8) cost performance is high, and function is so powerful but price is not high, is easy to be accepted by the user.
Claims (7)
1, a kind of line concentration controller that is applicable to the single channel output of a kind of digital simulation TV line concentration control remote control, comprise casing, input port, output port, integrated circuit, described integrated circuit comprises attenuator circuit, equalizing circuit, amplifying circuit, the distribution network matrix circuit, frequency-conversion circuit, the descrambling control circuit, the demodulation decrypt circuit, data separation circuit and singlechip CPU, it is characterized in that: described line concentration controller is with behind the flatness of cable TV signal through improving cable TV signal that receives and the attenuator circuit and equalizing circuit that improve the descrambling recovery effect, enter amplifying circuit again, cable TV signal after the amplification is divided into two road signals: the one tunnel enters the distribution network matrix circuit distributes a plurality of users, sends into respectively to have I again
2The frequency-conversion circuit of the total line traffic control of C carries out frequency translation, the cable television channels of 48.5-870MHz frequency range is transformed into single channel to be exported to user terminal distribution network device, the reception head of the remote controller in the user terminal distribution network device receives the descrambling control circuit that is up to after the remote signal in the hub, sends into through the descrambling control circuit that data separation circuit carries out the separation of control data signal and shaping, amplification is sent into singlechip CPU again and handled again; Another road cable TV signal is sent into demodulator and is carried out demodulation and decrypt: address signal, current this user's behaviour in service signal and descramble signal, the data-signal that enters the isolated request channel change of singlechip CPU and earlier data respectively carries out after comprehensive distinguishing, the contrast making determining whether this user is implemented output and descrambling to the request channel program by singlechip CPU again, then export the TV signal of descrambling reduction as paying the fees, as do not pay the fees and then do not export also the not TV signal of descrambling encryption.
2, the line concentration controller that is applicable to the single channel output of a kind of digital simulation TV line concentration control remote control according to claim 1, it is characterized in that: described distribution network matrix circuit comprises distribution network matrix and switch gating matrix, the distribution network matrix circuit is connected with amplifying circuit with singlechip CPU, and be communicated with frequency-conversion circuit and descrambling control circuit, under the control of signal after attenuation equalization is amplified in singlechip CPU, what contrast distribution network matrix and singlechip CPU were sent carries out demodulation and decrypts address signal through the demodulation decrypt circuit, current this user's behaviour in service signal and descramble signal, singlechip CPU IC5-1 sends the instruction branch of whether carrying out descrambling and is clipped to the distribution network matrix circuit after examining, channel conversion circuit and descrambling control circuit, carrying out descrambling by the switch gating matrix in the distribution network matrix circuit instructs reduction TV programme or execution to close cut-off signal instruction, the descrambling control circuit relevant work descrambling or the not descrambling of not working.
3, the line concentration controller that is applicable to the single channel output of a kind of digital simulation TV line concentration control remote control according to claim 1, it is characterized in that: described frequency-conversion circuit comprises filter, amplifier, first frequency mixer, second frequency mixer, phase-locked loop, amplify through behind the filter from the signal after the processing of distribution network matrix circuit, cable TV signal with the 48.5-870MHz frequency range, again through first frequency mixer, under the control of singlechip CPU, high-frequency signal to phase-locked loop control back output 2000MHz, once more through filter, amplifier is to second frequency mixer, and the high-frequency signal with the 2000MHz frequency after filtering is amplified is downconverted into single channel output in the control of singlechip CPU.
4, the line concentration controller that is applicable to the single channel output of a kind of digital simulation TV line concentration control remote control according to claim 1, it is characterized in that: described descrambling control circuit comprises IC9-1 and IC9-2 chip, VD9-1 and VD9-2 triode, under the control of singlechip CPU, signal is imported data separation circuit carry out the separation of control data signal and shaping, amplification; And accept or transmission receives the remote signal of head from remote controller.
5, the line concentration controller that is applicable to the single channel output of a kind of digital simulation TV line concentration control remote control according to claim 1, it is characterized in that: described data separation circuit receives the control data signal of handling from through the descrambling control circuit, and will control data signal separates and shaping, be transferred in the singlechip CPU after amplifying.
6, the line concentration controller that is applicable to the single channel output of a kind of digital simulation TV line concentration control remote control according to claim 1, be characterised in that: described demodulator is the demodulation decrypt circuit, adopting model is the chip of IC4-1 and IC4-2, is transferred among the IC5-1 and IC5-2 of singlechip CPU after the signal demodulation deciphering after the balanced amplification of self damping in the future.
7, the line concentration controller that is applicable to the single channel output of a kind of digital simulation TV line concentration control remote control according to claim 1, it is characterized in that: what each delivery outlet of described line concentration controller was exported is single channel signals, and a line concentration controller has 2 delivery outlets at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200614537U CN2726248Y (en) | 2004-09-28 | 2004-09-28 | Remote-single channel output concentrating controller suitable for D/A television concentrating control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200614537U CN2726248Y (en) | 2004-09-28 | 2004-09-28 | Remote-single channel output concentrating controller suitable for D/A television concentrating control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2726248Y true CN2726248Y (en) | 2005-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200614537U Expired - Fee Related CN2726248Y (en) | 2004-09-28 | 2004-09-28 | Remote-single channel output concentrating controller suitable for D/A television concentrating control |
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| Country | Link |
|---|---|
| CN (1) | CN2726248Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436199A (en) * | 2011-10-26 | 2012-05-02 | 常熟市高事达光电科技有限公司 | One-chip microcomputer controlled attenuation circuit used for optical receiver of cable television network |
| CN103595600A (en) * | 2012-12-31 | 2014-02-19 | 大唐电信科技股份有限公司 | Cluster processing method suitable for EOC large-scale networking and photoelectric two-way network |
| CN110337033A (en) * | 2019-07-04 | 2019-10-15 | 深圳市魔乐视科技有限公司 | Set-top box anti-piracy |
-
2004
- 2004-09-28 CN CNU2004200614537U patent/CN2726248Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436199A (en) * | 2011-10-26 | 2012-05-02 | 常熟市高事达光电科技有限公司 | One-chip microcomputer controlled attenuation circuit used for optical receiver of cable television network |
| CN103595600A (en) * | 2012-12-31 | 2014-02-19 | 大唐电信科技股份有限公司 | Cluster processing method suitable for EOC large-scale networking and photoelectric two-way network |
| CN103595600B (en) * | 2012-12-31 | 2017-07-28 | 大唐电信科技股份有限公司 | A kind of clustering methods and photoelectricity Two-way Network suitable for EOC large-scale network-estabilishings |
| CN110337033A (en) * | 2019-07-04 | 2019-10-15 | 深圳市魔乐视科技有限公司 | Set-top box anti-piracy |
| CN110337033B (en) * | 2019-07-04 | 2021-05-18 | 深圳市魔乐视科技有限公司 | Anti-piracy system of set top box |
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