CN101827201A - Set-top box and digital television playing system - Google Patents
Set-top box and digital television playing system Download PDFInfo
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Abstract
The invention discloses a set-top box and a digital television playing system. The set-top box comprises a digital signal receiving and transmitting unit, a multimedia program storage unit, a digital signal processing unit and an audio and video digital-to-analog conversion unit, wherein the digital signal receiving and transmitting unit is used for receiving the digital signal of a multimedia program transmitted by a digital television server or transmitting the digital signal of the multimedia program stored in the multimedia program storage unit to the digital television server; the multimedia program storage unit is used for storing the multimedia program transmitted by the digital television server or the multimedia program provided by the set-top box; the digital signal processing unit is used for decrypting the digital signal of the multimedia program received by the digital signal receiving and transmitting unit or encrypting the digital signal of the multimedia program stored in the multimedia program storage unit; and the audio and video digital-to-analog conversion unit is used for converting the digital signal of the multimedia program decrypted by the digital signal processing unit into an analog signal. Therefore, the set-top box has functions of receiving a digital television signal and transmitting the digital television signal at the same time.
Description
Technical field
The invention belongs to the digital television techniques field, relate in particular to a kind of set-top box and digital television broadcasting system.
Background technology
Digital home is meant various families communication products, computer product, consumer electronics product, according to the family digital demand, form home network, and insert and social omnibearing information interaction by outer net, composition has home entertaining, control service and informational function system.Digital home will realize human demand to digitlization, intelligent life, change people's life style, for people provide convenience, safety, intellectuality, comfortable digitlization life.Enter 21 century, the development of digital home and Digital Television industry is closely bound up with the national life level of informatization especially.And digital television business indispensable part in the digital home service especially, in the modern society of technicalization day by day, digital television business day by day popularization and application in vast family.
At present domestic digital television business also is in the unidirectional rating stage basically, in the whole conversion of some provinces and cities Digital Television formerly, to the user mostly dispensing be one-way set-top box, the broadcast mode of digital television broadcasting system also is unidirectional.And the cable television network of one-way transmission can only be realized the transmission and the charge of unidirectional cable television program.This makes the form of digital television business single, and the multidirectional service of more wide digital television program can not be provided for vast user, can not satisfy the shared demand of the digital television program that people enlarge day by day.
In summary, there are shortcoming in set-top box and digital television broadcasting system in the prior art, obviously have inconvenience and defective on reality is used, so be necessary to be improved.
Summary of the invention
At above-mentioned defective, the object of the present invention is to provide a kind of set-top box and digital television broadcasting system, so that the set-top box that has receiving digital television signal simultaneously and send digital television signal to be provided; And digital television broadcasting system with two-way broadcast digital television program.
To achieve these goals, the invention provides a kind of set-top box, be arranged at client, comprise CPU, be used to change the digital signal of the multimedia programming of the digital television server transmission that is arranged at server end, described set-top box also comprises:
Digital signal receives transmitting element, be connected in described CPU, be used to receive the digital signal of the multimedia programming that described digital television server sends, perhaps send the digital signal of the multimedia programming that is stored in the multimedia programming memory cell to described digital television server;
The multimedia programming memory cell is connected in described CPU, is used to store the multimedia programming that described digital television server transmits, the multimedia programming that perhaps described set-top box provides;
Digital signal processing unit, be connected in described CPU, the digital signal that is used for described digital signal is received the multimedia programming that transmitting element receives is decrypted, and perhaps the digital signal of the multimedia programming of described multimedia programming cell stores is encrypted;
The audio frequency and video D/A conversion unit is connected in described digital signal processing unit, is used for the digital signal of the described multimedia programming of described digital signal processing unit deciphering is converted to analog signal.
Further, described set-top box also comprises:
The program request unit is connected in described CPU, is used to receive the multimedia programming order request that described digital television server transmits, and this order request is carried out authentication; Perhaps
The multimedia programming unit is connected in described audio frequency and video D/A conversion unit, is used to play the analog signal of described audio frequency and video D/A conversion unit with the digital signal conversion of described multimedia programming; Perhaps
The internet linkage unit is connected in described CPU, is used for described set-top box is connected into the internet; Perhaps
Input unit is connected in described CPU, is used for to described multimedia programming memory cell input multimedia programming information.
Further, described set-top box also comprises:
Charging Detail Record unit is connected in described program request unit, after the multimedia programming order request authentication success that is used in described program request unit described digital television server being transmitted, described order request is chargeed.
Further, described digital signal reception transmitting element comprises:
The digital signal receiver module is used to receive the digital signal of the multimedia programming that described digital television server sends;
The digital signal sending module is used for the digital signal with the multimedia programming that is stored in described multimedia programming memory cell of described digital signal processing unit encryption, sends to described digital television server.
Further, described multimedia programming memory cell comprises:
Receiving digital television program storage module is used to store the multimedia programming that described digital signal receives the digital signal that described digital television server that transmitting element receives sends;
Program request digital television program memory module is used to store the multimedia programming of the digital signal that described set-top box provides.
Further, described digital signal processing unit comprises:
The digital signal deciphering module is used to decipher the digital signal that described digital signal receives the multimedia programming that described digital television server that transmitting element receives sends;
The digital signal encrypting module is used to encrypt the digital signal of the multimedia programming of described multimedia programming cell stores.
Further, described audio frequency and video D/A conversion unit comprises:
The audio frequency D/A converter module is used for the audio digital signals of described digital signal processing unit deciphering is converted to audio analog signals;
The video D/A converter module is used for the video signal of described digital signal processing unit deciphering is converted to video analog signal.
Further, described program request unit comprises:
Registering modules is used to receive other users and sends by described digital television server, and the multimedia programming that is registered as described multimedia programming cell stores is watched user's request, and record is carried out in described other users' request;
The order request module is used to receive the multimedia programming request of the described multimedia programming cell stores of other user's program requests that described digital television server transmits;
Authentication module is used for the described record according to described Registering modules, and the order request of the described multimedia programming that described order request module is received is carried out authentication.
, described multimedia programming unit comprises:
Audio playing module is used to play the audio analog signals of described audio frequency and video D/A conversion unit with described audio digital signals conversion;
The video playback module is used to play the video analog signal of described audio frequency and video D/A conversion unit with described video signal conversion.
In order to realize another goal of the invention of the present invention, the present invention also provides a kind of and has utilized above-mentioned set-top box to realize the system that Digital Television is play, and described system comprises digital television server and a plurality of described set-top box, and described set-top box comprises:
Digital signal receives transmitting element, be connected in described CPU, be used to receive the digital signal of the multimedia programming that described digital television server sends, perhaps send the digital signal of the multimedia programming that is stored in the multimedia programming memory cell to described digital television server;
The multimedia programming memory cell is connected in described CPU, is used to store the multimedia programming that described digital television server transmits, the multimedia programming that perhaps described set-top box provides;
Digital signal processing unit, be connected in described CPU, the digital signal that is used for described digital signal is received the multimedia programming that transmitting element receives is decrypted, and perhaps the digital signal of the multimedia programming of described multimedia programming cell stores is encrypted;
The audio frequency and video D/A conversion unit is connected in described digital signal processing unit, is used for the digital signal of the described multimedia programming of described digital signal processing unit deciphering is converted to analog signal.
The present invention is set to comprise at least CPU by set-top box, digital signal receives transmitting element, the multimedia programming memory cell, the structure of digital signal processing unit and audio frequency and video D/A conversion unit, the digital signal that described digital signal processing unit not only can receive described digital signal the digital television program of transmitting element reception is decrypted processing, the digital signal of the digital television program that this set-top box can also be provided is carried out encryption, after waiting to receive user's request of other clients, the digital signal of the digital television program that set-top box is provided sends to digital television server, and the digital signal of the digital television program signal after will being encrypted by this digital television server is sent to other clients and plays.Therefore, set-top box provided by the invention has the function of two-way transmission and broadcast digital television program.In addition, the digital television broadcasting system that utilizes described set-top box to realize the Digital Television broadcast provided by the invention, realized that also not only its server end can also be implemented in the function that client provides digital television program for the function that the user provides digital television program.Therefore, optimized the service status of the business of digital television program, for the development of Digital Television provides more wide technology bridge.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of set-top box provided by the invention;
Fig. 2 is the structural representation of the set-top box that provides of one embodiment of the invention;
Fig. 3 is the structural representation of the set-top box that provides of another embodiment of the present invention;
Fig. 4 is the structural representation of the set-top box that provides of another embodiment of the present invention;
Fig. 5 is the structural representation of the set-top box that provides of another embodiment of the present invention;
Fig. 6 is the composition schematic diagram that the invention provides the system of Digital Television broadcast.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Basic thought of the present invention is: set-top box is set to comprise at least that CPU, digital signal receive the structure of transmitting element, multimedia programming memory cell, digital signal processing unit and audio frequency and video D/A conversion unit, receive transmitting element by digital signal and receive and send the digital television program signal, realize the two-way transmission of set-top box and the function of broadcast digital television program.
Referring to Fig. 1 and Fig. 6, the invention provides a kind of set-top box 1, this set-top box 1 is arranged at client, comprises CPU 11, is used to change the digital signal of the multimedia programming of digital television server 2 transmission that are arranged at server end, and set-top box 1 also comprises:
Digital signal receives transmitting element 12, be connected in CPU 11, the digital signal that is used for the multimedia programming that receiving digital television server 2 sends perhaps sends the digital signal of the multimedia programming that is stored in multimedia programming memory cell 13 to digital television server 2;
Multimedia programming memory cell 13 is connected in CPU 11, is used to store the multimedia programming that digital television server 2 transmits, perhaps the multimedia programming that provides of set-top box 1;
Digital signal processing unit 14, be connected in CPU 11, the digital signal that is used for digital signal is received the multimedia programming that transmitting element 12 receives is decrypted, and perhaps the digital signal of the multimedia programming of multimedia programming memory cell 13 storages is encrypted;
Audio frequency and video D/A conversion unit 15 is connected in digital signal processing unit 14, is used for the digital signal of the multimedia programming of digital signal processing unit 14 deciphering is converted to analog signal.
The set-top box 1 that provides in the present invention is to have a two-way function, and promptly the digital signal of this set-top box 1 multimedia programming that both digital television server 2 can have been sent is converted to analog signal, is that present vast TV user is play digital television program and used; Can also send simultaneously the digital signal of multimedia programming to the user of other clients, for the user of other clients watches.
Referring to Fig. 2, in one embodiment of the invention, digital signal receives transmitting element 12 and comprises:
Digital signal receiver module 121 is used for the digital signal of the multimedia programming that receiving digital television server 2 sends; Digital signal receiver module 121 is responsible for the digital television program that receiving digital television server 2 is play, certainly this program can be at server end, by the multimedia programming that digital television server 2 provides, also can be the multimedia programming that other clients provide to set-top box 1 by digital television server 2.These multimedia programmings comprise the encryption of audio digital signals or the encryption of video signal by being the digital signal of having encrypted, and video, audio digital signals are all encrypted.After digital signal receiver module 121 receives the digital signal of this multimedia programming, be sent to CPU 11, if the user is set to this multimedia programming storage, then CPU 11 will be stored in multimedia programming memory cell 13 with this multimedia programming, otherwise will carry out D/A switch by 15 pairs of these multimedia programmings of audio frequency and video D/A conversion unit.
Digital signal sending module 122 is used for the digital signal with the multimedia programming that is stored in multimedia programming memory cell 13 of digital signal processing unit 14 encryptions, sends to digital television server 2.During as the multimedia programming supplier, for the interests that guarantee to provide, the digital signal of the multimedia programming that it provides needs encryption in set-top box 1, and the digital signal of the multimedia programming of encrypting is outwards sent by digital signal sending module 122.
For multimedia programming memory cell 13, it comprises:
Receiving digital television program storage module 131 is used to store the multimedia programming that digital signal receives the digital signal that digital television server 2 that transmitting element 12 receives sends; In the TV programme of playing digital signal, this program resource is can be stored in the receiving digital television program storage module 131, certainly, the user also can just play this TV programme in real time according to the needs of oneself, and this TV programme resource is not stored in receiving digital television program storage module 131.
Program request digital television program memory module 132 is used to store the multimedia programming of the digital signal that described set-top box 1 provides.During as the supplier of multi-media digital television program, the program request digital television program memory module 132 of this set-top box 1 stores corresponding multi-media digital television program in set-top box 1.The form of this program is varied, can be news, TV play, film; Also can be FLASH animation, broadcast program; Or e-book etc.
Preferably, in the present embodiment, digital signal processing unit 14 comprises: digital signal deciphering module 141 is used to decipher the digital signal that digital signal receives the multimedia programming that digital television server 2 that transmitting element 12 receives sends.CPU 11 sends to the digital signal of the multimedia programming of digital signal receiver module 121 receptions digital signal deciphering module 141 and is decrypted.
The digital signal of the multimedia programming of digital television server 2 transmissions all is to handle through scrambling generally speaking, digital signal deciphering module 141 is according to the descrambling mode of making an appointment, the digital signal of the multimedia programming that the digital television server 2 that digital signal reception transmitting element 12 is received sends is decrypted, the reduction multimedia programming.
Digital signal encrypting module 142 is used for the digital signal of the multimedia programming of ciphering multimedia program storage unit 13 storage.In set-top box 1 when the user of other clients provides multimedia programming, the digital signal of its multimedia programming need be carried out encryption, CPU 11 provides multimedia programming with the set-top box 1 of multimedia programming memory cell 13 storages to the user of other clients, send to digital signal encrypting module 142, and control 142 pairs of digital video signals of this digital signal encrypting module and/or digital audio and video signals is encrypted.Cryptographic algorithm comprises multiple encryption algorithms such as encrypting motion vector algorithms, DCT piece coefficient hierarchical cryptographic algorithm.
In addition, in the present embodiment, audio frequency and video D/A conversion unit 15 comprises: audio frequency D/A converter module 151 is used for the audio digital signals of digital signal processing unit 14 deciphering is converted to audio analog signals; Video D/A converter module 152 is used for the video signal of digital signal processing unit 14 deciphering is converted to video analog signal.Because the TV of users' use at present still is the TV of analog signal, therefore audio frequency D/A converter module 151 provided by the invention can be converted to audio analog signals with the audio digital signals after the deciphering, is suitable for televising of analog signal.Video D/A converter module 152 then is that the video signal after the deciphering is converted to video analog signal.
Referring to Fig. 3, in another embodiment of the present invention, set-top box 1 also comprises:
Referring to Fig. 5, in this embodiment, set-top box 1 of the present invention has comprised a program request unit 16, and preferred program request unit 16 comprises:
Registering modules 161 is used to receive other users and sends by digital television server 2, and the multimedia programming that is registered as 13 storages of multimedia programming memory cell is watched user's request, and record is carried out in described other users' request;
During as the digital television program supplier, for the interests that guarantee to provide, a register and authentication mechanism need be set in set-top box 1, the user of other clients is if need watch the multimedia programming of multimedia programming memory cell 13 storages; Need be its user to Registering modules 161 request registration, the information of registration comprises user name, some relevant informations such as user cipher.After registration is finished, transmit the multimedia programming request of free online multimedium program storage unit 13 storages by digital television server 2 the user of other clients; Order request module 162 receives this request, and authentication module 163 is according to the described record of Registering modules 161, and the order request of the described multimedia programming that order request module 162 is received is carried out authentication.After authentication success, by digital signal sending module 122 digital signal processing unit 14 to be encrypted, the digital signal that is stored in the multimedia programming of multimedia programming memory cell 13 sends to digital television server 2; Propagate this multimedia programming by this digital television server 2 for the user of other clients again.
Referring to Fig. 4, in another embodiment of the present invention, Charging Detail Record unit 20 is connected in program request unit 16, be used for after the multimedia programming order request authentication success that 16 pairs of digital television server in program request unit 2 transmit, described order request is chargeed, realized the function of the transmitted in both directions convert multimedia program of set-top box 1.
Referring to Fig. 5, in one embodiment of the invention, the set-top box 1 that provides has comprised multimedia programming unit 17, and multimedia programming unit 17 comprises: audio playing module 171 is used for the audio analog signals of playing audio-video D/A conversion unit 15 with described audio digital signals conversion; Video playback module 172 is used for the video analog signal of playing audio-video D/A conversion unit 15 with described video signal conversion.So by this unit, can playing audio-video D/A conversion unit 15 with the analog signal of the digital signal conversion of described multimedia programming; Comprising audio analog signals and audio digital signals.Be about to existing television set and set-top box 1 is made as all-in-one.
And set-top box 1 has also comprised internet linkage unit 18, utilizes this unit can realize the function of surfing the Net of set-top box 1, and more a step has been expanded the function of set-top box 1.Other operating terminals that the user can utilize set-top box 1 to provide are as mouse, keyboard; Perhaps remote controller is realized surfing the web.
In the present invention, digital signal processing unit 14 is a digital signal processor.This digital signal processing unit 14 comprises audio/video input interface, audio/video output interface, memory input interface, PCI (Peripheral Component Interconnect, peripheral component interconnect) interface, internet network connecting interface.
Referring to Fig. 6, the present invention also provides a kind of set-top box 1 of utilizing above-mentioned a plurality of embodiment to provide to realize the system 3 that Digital Television is play, and described system comprises digital television server 2 and a plurality of set-top box 1, and set-top box 1 also comprises:
Digital signal receives transmitting element 12, be connected in CPU 11, the digital signal that is used for the multimedia programming that receiving digital television server 2 sends perhaps sends the digital signal of the multimedia programming that is stored in multimedia programming memory cell 13 to digital television server 2;
Multimedia programming memory cell 13 is connected in CPU 11, is used to store the multimedia programming that digital television server 2 transmits, perhaps the multimedia programming that provides of set-top box 1;
Digital signal processing unit 14, be connected in CPU 11, the digital signal that is used for digital signal is received the multimedia programming that transmitting element 12 receives is decrypted, and perhaps the digital signal of the multimedia programming of multimedia programming memory cell 13 storages is encrypted;
Audio frequency and video D/A conversion unit 15 is connected in digital signal processing unit 14, is used for the digital signal of the multimedia programming of digital signal processing unit 14 deciphering is converted to analog signal.
Other concrete structures of set-top box 1 in the system 3 that this Digital Television is play all have description in above-mentioned a plurality of embodiment, do not repeat them here.
In sum, the present invention is set to comprise at least CPU by set-top box, digital signal receives transmitting element, the multimedia programming memory cell, the structure of digital signal processing unit and audio frequency and video D/A conversion unit, the digital signal that described digital signal processing unit not only can receive described digital signal the digital television program of transmitting element reception is decrypted processing, the digital signal of the digital television program that this set-top box can also be provided is carried out encryption, after waiting to receive user's request of other clients, the digital signal of the digital television program that set-top box is provided sends to digital television server, and the digital signal of the digital television program signal after will being encrypted by this digital television server is sent to other clients and plays.Therefore, set-top box provided by the invention has the function of two-way transmission and broadcast digital television program.In addition, the digital television broadcasting system that utilizes described set-top box to realize the Digital Television broadcast provided by the invention, realized that also not only its server end can also be implemented in the function that client provides digital television program for the function that the user provides digital television program.Therefore, optimized the service status of the business of digital television program, for the development of Digital Television provides more wide technology bridge.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1. a set-top box is arranged at client, comprises CPU, is used to change the digital signal of the multimedia programming of the digital television server transmission that is arranged at server end, it is characterized in that described set-top box also comprises:
Digital signal receives transmitting element, be connected in described CPU, be used to receive the digital signal of the multimedia programming that described digital television server sends, perhaps send the digital signal of the multimedia programming that is stored in the multimedia programming memory cell to described digital television server;
The multimedia programming memory cell is connected in described CPU, is used to store the multimedia programming that described digital television server transmits, the multimedia programming that perhaps described set-top box provides;
Digital signal processing unit, be connected in described CPU, the digital signal that is used for described digital signal is received the multimedia programming that transmitting element receives is decrypted, and perhaps the digital signal of the multimedia programming of described multimedia programming cell stores is encrypted;
The audio frequency and video D/A conversion unit is connected in described digital signal processing unit, is used for the digital signal of the described multimedia programming of described digital signal processing unit deciphering is converted to analog signal.
2. set-top box according to claim 1 is characterized in that, described set-top box also comprises:
The program request unit is connected in described CPU, is used to receive the multimedia programming order request that described digital television server transmits, and this order request is carried out authentication; Perhaps
The multimedia programming unit is connected in described audio frequency and video D/A conversion unit, is used to play the analog signal of described audio frequency and video D/A conversion unit with the digital signal conversion of described multimedia programming; Perhaps
The internet linkage unit is connected in described CPU, is used for described set-top box is connected into the internet; Perhaps
Input unit is connected in described CPU, is used for to described multimedia programming memory cell input multimedia programming information.
3. set-top box according to claim 1 is characterized in that, described set-top box also comprises:
Charging Detail Record unit is connected in described program request unit, after the multimedia programming order request authentication success that is used in described program request unit described digital television server being transmitted, described order request is chargeed.
4. set-top box according to claim 1 is characterized in that, described digital signal receives transmitting element and comprises:
The digital signal receiver module is used to receive the digital signal of the multimedia programming that described digital television server sends;
The digital signal sending module is used for the digital signal with the multimedia programming that is stored in described multimedia programming memory cell of described digital signal processing unit encryption, sends to described digital television server.
5. set-top box according to claim 1 is characterized in that, described multimedia programming memory cell comprises:
Receiving digital television program storage module is used to store the multimedia programming that described digital signal receives the digital signal that described digital television server that transmitting element receives sends;
Program request digital television program memory module is used to store the multimedia programming of the digital signal that described set-top box provides.
6. set-top box according to claim 1 is characterized in that, described digital signal processing unit comprises:
The digital signal deciphering module is used to decipher the digital signal that described digital signal receives the multimedia programming that described digital television server that transmitting element receives sends;
The digital signal encrypting module is used to encrypt the digital signal of the multimedia programming of described multimedia programming cell stores.
7. set-top box according to claim 1 is characterized in that, described audio frequency and video D/A conversion unit comprises:
The audio frequency D/A converter module is used for the audio digital signals of described digital signal processing unit deciphering is converted to audio analog signals;
The video D/A converter module is used for the video signal of described digital signal processing unit deciphering is converted to video analog signal.
8. set-top box according to claim 2 is characterized in that, described program request unit comprises:
Registering modules is used to receive other users and sends by described digital television server, and the multimedia programming that is registered as described multimedia programming cell stores is watched user's request, and record is carried out in described other users' request;
The order request module is used to receive the multimedia programming request of the described multimedia programming cell stores of other user's program requests that described digital television server transmits;
Authentication module is used for the described record according to described Registering modules, and the order request of the described multimedia programming that described order request module is received is carried out authentication.
9. set-top box according to claim 2 is characterized in that, described multimedia programming unit comprises:
Audio playing module is used to play the audio analog signals of described audio frequency and video D/A conversion unit with described audio digital signals conversion;
The video playback module is used to play the video analog signal of described audio frequency and video D/A conversion unit with described video signal conversion.
10. one kind is utilized any described set-top box of claim 1 to 9 to realize the system that Digital Television is play, and described system comprises digital television server and a plurality of described set-top box, it is characterized in that described set-top box comprises:
Digital signal receives transmitting element, be connected in described CPU, be used to receive the digital signal of the multimedia programming that described digital television server sends, perhaps send the digital signal of the multimedia programming that is stored in the multimedia programming memory cell to described digital television server;
The multimedia programming memory cell is connected in described CPU, is used to store the multimedia programming that described digital television server transmits, the multimedia programming that perhaps described set-top box provides;
Digital signal processing unit, be connected in described CPU, the digital signal that is used for described digital signal is received the multimedia programming that transmitting element receives is decrypted, and perhaps the digital signal of the multimedia programming of described multimedia programming cell stores is encrypted;
The audio frequency and video D/A conversion unit is connected in described digital signal processing unit, is used for the digital signal of the described multimedia programming of described digital signal processing unit deciphering is converted to analog signal.
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| CN 201010166862 CN101827201A (en) | 2010-04-30 | 2010-04-30 | Set-top box and digital television playing system |
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| CN 201010166862 CN101827201A (en) | 2010-04-30 | 2010-04-30 | Set-top box and digital television playing system |
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| CN105025329A (en) * | 2015-07-28 | 2015-11-04 | 苏州南光电子科技有限公司 | Download device of digital television mobile data |
| WO2017000527A1 (en) * | 2015-07-02 | 2017-01-05 | 南通同洲电子有限责任公司 | Two-way digital cable set-top box |
| CN110324725A (en) * | 2019-07-03 | 2019-10-11 | 福建广电网络集团股份有限公司 | A kind of interactive television platform agreement transferring system |
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| CN200987193Y (en) * | 2006-12-26 | 2007-12-05 | 华为技术有限公司 | Set up box |
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| WO2017000527A1 (en) * | 2015-07-02 | 2017-01-05 | 南通同洲电子有限责任公司 | Two-way digital cable set-top box |
| CN105025329A (en) * | 2015-07-28 | 2015-11-04 | 苏州南光电子科技有限公司 | Download device of digital television mobile data |
| CN110324725A (en) * | 2019-07-03 | 2019-10-11 | 福建广电网络集团股份有限公司 | A kind of interactive television platform agreement transferring system |
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Application publication date: 20100908 |