CN100353747C - Set-top-box for bidirectional communication apparatus - Google Patents
Set-top-box for bidirectional communication apparatus Download PDFInfo
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- CN100353747C CN100353747C CNB2004100774386A CN200410077438A CN100353747C CN 100353747 C CN100353747 C CN 100353747C CN B2004100774386 A CNB2004100774386 A CN B2004100774386A CN 200410077438 A CN200410077438 A CN 200410077438A CN 100353747 C CN100353747 C CN 100353747C
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Abstract
The present invention discloses a bidirectional communication set-top box which comprises a unidirectional set-top box (1) which can be connected with electrical signals of an external network, and a reverse module (2) which is connected with the unidirectional set-top box (1) and can reversely transmit information, wherein the reverse module (2) comprises a CPU/single chip computer (3), RS-232 serial ports (4) and a 10/100M RJ45 network interface (8), wherein the unidirectional set-top box (1) and the CPU/single chip computer (3) are connected by the RS-232 serial port (4), namely, an RS232 serial port of the reverse module (2) and an RS232 serial port of the unidirectional set-top box (1) are connected, the CPU/single chip computer (3) and peripheral equipment are connected by the 10/100M RJ45 network interface (8), and the reverse module (2) can be connected with the peripheral equipment. The reformed set-top box is applicable to various networks for bidirectional program transmission, and consequently, interaction between a service provider and users is effectively realized, which provides a business opportunity of value-added service development for the service provider and can meet different requirements of users.
Description
Technical field
The present invention relates to network communication equipment, relate in particular to a kind of set-top-box for bidirectional that can be used for carrying out between telecommunications, radio and television services provider and the user information interaction.
Background technology
At present, the set-top box device of domestic and international production and selling, mostly be one-way set-top box greatly, its operation principle as shown in Figure 1, the programme information that radio and television local side equipment sends, is converted to the TV function by set-top box and receives the analog signal of playing to set-top box by Hybrid Fiber and Coax Network HFC HFC (Hybrid Fiber Coax) one-way transmission program, and be input to users' television set, thereby realize the digital television function of traditional sense.Concrete shortcoming is as follows:
1, the unidirectional access of hfc plant, by radio and television local side tables of equipment to the transmission program to set-top box
The set-top box of prior art is only supported receiving digital television signal from hfc plant, and promptly set-top box only can satisfy the transmission of unidirectional program, and can't realize the interaction between service provider and the user effectively;
2, can't utilize the hfc plant developing value-added services
Radio and television services provider is as the operator, (especially passes through bidirectional rebuilding) after drop into substantial contribution and set up a cover hfc plant, and hope can provide more business and service for the user, thereby obtains higher commercial return.But be subjected to the restriction of set-top box, be difficult to carry out making functions such as real-time video program request (VOD), web page browsing, network gaming, video voice, and carrying out of these functions must provide mutual transmission channel to satisfy the mutual of information.
At present adopt mutual transmission channel, as the real-time VOD of exemplary system, it mainly relies on old-fashioned telephone network (PSTN) based on the mutual program request problem that set-top box solves real-time VOD system.When the user needs request program, at first by the mode of making a phone call, adopt button to import and select program, after the VOD system reception information, begin broadcast program in real time.This kind technical disadvantages:
1, cost height: realize real-time VOD system, the PSTN phone must be installed, need the program request instruction be sent to real-time VOD server by the PSTN network during request program in addition, need be to telco provider's defrayment.
2, efficient is low: request program need be made a phone call, and system response time is slow, and intuitive and interactivity are relatively poor.
3, poor stability: in a single day telephone wire is usurped, lose very big.
Summary of the invention
The objective of the invention is to solve the transmission that existing set-top box only can satisfy unidirectional program, and can't realize between service provider and the user interactive technical problem, propose a kind ofly can make the set-top box of carrying out the two-way communication of information interaction between telecommunications, radio and television services provider and the user.
For the problems referred to above, can consider from two aspects:
1, increase interactive module, transforming existing one-way set-top box is bi-directional set-top box
Used a large amount of one-way set-top boxes in the market,, will cause the massive losses of radio and television operator if simply change.Adopt the external interactive module that can transmit information alternately, the RS-232 serial ports of this module is connected with the RS-232 serial ports of one-way set-top box, and the RJ45 Ethernet interface of interactive module is realized being connected with IP network, thereby constitute exchange channels.
2, increase exchange channels, make improved bi-directional set-top box can be used for multiple exchange channels
Setting can be transmitted the interactive module of information alternately in the new one-way set-top box that produces, and makes one-way set-top box upgrade to bi-directional set-top box, and its inner principle is as above 1 described.
For solving the problem that existing set-top box only can one-way transmission, the solution that the present invention proposes is: construct a kind of set-top-box for bidirectional, it comprises the one-way set-top box that can be connected with the external network signal of telecommunication, also comprise the interactive module that can transmit information alternately that is connected with described one-way set-top box, described interactive module can be connected with ancillary equipment.
Interactive module of the present invention, the RS-232 serial ports that comprises CPU/ single-chip microcomputer, the described one-way set-top box of connection and described CPU/ single-chip microcomputer, the RS-232 serial ports of described interactive module is connected with the RS-232 serial ports of one-way set-top box, also comprises the 10/100M RJ45 network interface that connects described CPU/ single-chip microcomputer and ancillary equipment.
Wherein, described interactive module and described one-way set-top box can be wholely set, also can the split setting.
In the first embodiment of the invention, described interactive module can be connected with two-way hfc plant by a cable modem (cable modem); Described one-way set-top box can be connected with the two-way hfc plant signal of telecommunication; Described interactive module and described one-way set-top box can the split settings, and the RS-232 interface by standard connects between the two.In the second embodiment of the invention, described interactive module can be connected with two-way hfc plant by a cable modem; Described one-way set-top box can be connected with the two-way hfc plant signal of telecommunication; Described interactive module and described one-way set-top box also can be wholely set, and the RS-232 interface by standard connects between the two.
Described cable modem can be arranged on the inside of described interactive module, also can be arranged on the outside of interactive module.
In the third embodiment of the invention, described interactive module can directly be connected with the ADSL net; Described one-way set-top box can be connected with the ADSL net signal of telecommunication.
Described interactive module also can directly be connected with Ethernet; Described one-way set-top box can be connected with the Ethernet signal of telecommunication.
The present invention is on the basis of existing one-way set-top box, increase by one can be transmitted the interactive module of information alternately, make set-top box can be used for multiple network, satisfy the transmission of two-way program, thereby realize the interaction between service provider and the user effectively, service provider's developing value-added services provides business opportunity, also can satisfy user's different demands.As adopting the present invention in the VOD system in real time, the user can directly select program, request program, termination program, fast forwarding and fast rewinding program etc. by set-top box remote controller, except that the program request expense, does not increase extra-pay; In the request program process, the VOD system is presented at operating process on the television screen in real time in real time, and the user can arbitrarily operate intuitively; The VOD system all by the present invention, has the uniqueness restriction, so fail safe is high to authentification of user in real time.Be that the present invention can make customer using cost reduction, rating efficient and safety in utilization improve.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is elaborated, wherein:
Fig. 1 is the fundamental diagram of existing one-way set-top box;
Fig. 2 is the fundamental diagram that first embodiment of the invention interactive module and one-way set-top box split are provided with;
Fig. 3 is the fundamental diagram that first embodiment of the invention interactive module and cable modem (cable modem) are wholely set;
Fig. 4 is the fundamental diagram that second embodiment of the invention interactive module, cable modem and one-way set-top box are wholely set;
Fig. 5 is a third embodiment of the invention interactive module and one-way set-top box is wholely set, outside be the fundamental diagram of broadband access;
Fig. 6 is that third embodiment of the invention interactive module and one-way set-top box split settings, outside are the fundamental diagram of broadband access;
Fig. 7 is the circuit diagram that interactive module of the present invention is used for real-time VOD system.
Embodiment
Fig. 2 shows the operation principle of first embodiment of the invention, described set-top-box for bidirectional, it comprises the one-way set-top box 1 that can be connected with the outside hfc plant signal of telecommunication, also comprise an interactive module 2 that is connected with described one-way set-top box 1, this interactive module comprises CPU/ single-chip microcomputer 3, the RS-232 serial ports 4 that connects described one-way set-top box 1 and described CPU/ single-chip microcomputer 3, the RS-232 serial ports 4 of described interactive module 2 is connected with the RS-232 serial ports of one-way set-top box 1, and described interactive module 2 also comprises the 10/100M RJ45 network interface 8 that connects described CPU/ single-chip microcomputer 3 and ancillary equipment.Be that interactive module 2 is connected with two-way hfc plant 6 by 10/100M RJ45 network interface 8 stube cable modulator-demodulators (cable modem) 5 again.Wherein said interactive module 2 is designed to independently unit, promptly with described one-way set-top box 1 split setting.Have interactive module unit 2 outer the articulating of independent design now put on market one-way set-top box, even the RS-232 serial ports 4 of interactive module 2 is connected with the RS-232 serial ports of one-way set-top box 1, make it possess mutual transfer function, finish the bidirectional rebuilding of one-way set-top box.Described cable modem 5 is located at the outside of described interactive module unit 2.As shown in Figure 3, form a stand-alone product after also can be integrated, and it is articulated existing one-way set-top box of putting on market outward cable modem 5 and interactive module unit 2.
Fig. 4 shows the operation principle of second embodiment of the invention, can be under the prerequisite that does not change existing one-way set-top box design, described interactive module 2 is increased in the set-top box, the RS-232 serial ports 4 of interactive module 2 is connected with the RS-232 serial ports of one-way set-top box 1, and described cable modem 5 is installed in the set-top box, form an integral device that possesses mutual transfer function---bi-directional set-top box.
Fig. 5 shows the operation principle of third embodiment of the invention, do not changing under the existing one-way set-top box design premises equally, described interactive module 2 is increased in the set-top box, the RS-232 serial ports 4 of interactive module 2 is connected with the RS-232 serial ports of one-way set-top box 1, same formation one two-way set-top box, but external network is broadband access in this example, for example ADSL 7 or Ethernet access way.Also interactive module 2 can be designed to independently unit, promptly with described one-way set-top box 1 split setting.Have interactive module unit 2 outer the articulating of independent design now put on market one-way set-top box, even the RS-232 serial ports 4 of interactive module 2 is connected with the RS-232 serial ports of one-way set-top box 1, make it possess mutual transfer function, finish the bidirectional rebuilding of one-way set-top box, as shown in Figure 6.
The CPU/ single-chip microcomputer 3 that adopts in the interactive module of the present invention can be selected all processor IC devices at present for use, and function as required requires to select to performance of processors; This processor can carry the client software of different service provider services, the request instruction of realizing the user and service provider's response instruction alternately.
The RS-232 serial ports 4 that adopts can be supported the serial ports of standard, physically can adopt 9 needle serial ports or the self-defining serial ports connected mode of standard.The present invention is connected employing RS-232 cable mode and connects with one-way set-top box; This serial ports is from the state information of set-top box receiving set up box and user's request instruction, and the instruction that also sends the service provider server end simultaneously is to set-top box, and set-top box is made corresponding processing.
The 10/100M RJ45 network interface 8 that adopts can be supported the 10/100M self adaptation Ethernet interface of standard, supports 5 classes or 6 class twisted-pair feeders.
Processor of the present invention can also move different client softwares according to the difference of value-added service.RS-232 serial ports 4 sends to service provider's server system with the state information of terminal use's request instruction and set-top box, and receives response and supervisory instruction from server system.
Fig. 7 shows the circuit diagram that interactive module 2 of the present invention is used for the VOD system, described interactive module 2 adopts the ARM7 processor S3C4510B of SAMSUNG company, this processor S3C4510B expands a 10/100M Ethernet interface by MII (the Media Independent Interface) interface that carries and the LXT972 (10/100M ethernet physical layer chip) of Intel, processor S3C4510B relies on inner UART controller (Universal Asynchronous Receiver/Transmitters) in addition, and the MAX3221E RS-232 interface conversion chip of external MAXIM company expands a serial ports of supporting the RS-232 interface characteristic.
The present invention is like this work (is example with real-time VOD system): the user directly flows from hfc plant 6 receiving digital videos by the coaxial interface of set-top box, when the needs request program, the user is by set-top box remote controller knob announcement machine top box, set-top box is in the Switch Video passage, solicited message is dealt in the employing interactive module 2 of the present invention by serial ports, data format order according to real-time VOD server requirement, the solicited message that receives is converted to the IP datagram literary composition that server can receive and discern, by the 10/100M Ethernet interface, send to cable modem 5, after the modulation through cable modem 5, send to real-time VOD server receiving terminal by hfc plant 6; In like manner, in real time the response instruction of VOD server also sends to user's cable modem equipment by hfc plant 6, becomes the IP message after the demodulation and sends in the interactive module 2 of the present invention, converts the message format that set-top box can receive to and sends to set-top box.And the video flowing of VOD system directly is delivered in user's the set-top box by hfc plant 6 all the time in real time.
Claims (7)
1, a kind of set-top-box for bidirectional, comprise the one-way set-top box (1) that is connected with the external network signal of telecommunication, it is characterized in that also comprise the interactive module (2) of a mutual transmission information that is connected with described one-way set-top box (1), described interactive module (2) is connected with a cable modem (5); Described interactive module (2) comprises CPU/ single-chip microcomputer (3), connects the RS-232 serial ports (4) of described one-way set-top box (1) and described CPU/ single-chip microcomputer (3), the RS-232 serial ports of described interactive module (2) is connected with the RS-232 serial ports of described one-way set-top box (1), and described interactive module (2) also comprises the 10/100M RJ45 network interface (8) that connects described CPU/ single-chip microcomputer (3) and described cable modem (5).
2, set-top box as claimed in claim 1 is characterized in that, described interactive module (2) and described one-way set-top box (1) are for being wholely set.
3, set-top box as claimed in claim 1 is characterized in that, described interactive module (2) is the split setting with described one-way set-top box (1).
As claim 2 or 3 described set-top box, it is characterized in that 4, described interactive module (2) is connected with the coaxial hybrid network of bidirectional optical fiber (6) by described cable modem (5); Described one-way set-top box (1) is connected with the coaxial hybrid network of bidirectional optical fiber (6) signal of telecommunication.
5, set-top box as claimed in claim 4 is characterized in that, described cable modem (5) is arranged on the inside of described interactive module (2) or is arranged on the outside of interactive module (2).
As claim 2 or 3 described set-top box, it is characterized in that 6, described interactive module (2) directly is connected with ADSL net (7); Described one-way set-top box (1) is connected with ADSL net (7) signal of telecommunication.
As claim 2 or 3 described set-top box, it is characterized in that 7, described interactive module (2) directly is connected with Ethernet; Described one-way set-top box (1) is connected with the Ethernet signal of telecommunication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100774386A CN100353747C (en) | 2004-12-09 | 2004-12-09 | Set-top-box for bidirectional communication apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100774386A CN100353747C (en) | 2004-12-09 | 2004-12-09 | Set-top-box for bidirectional communication apparatus |
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| Publication Number | Publication Date |
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| CN1787602A CN1787602A (en) | 2006-06-14 |
| CN100353747C true CN100353747C (en) | 2007-12-05 |
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| CNB2004100774386A Expired - Fee Related CN100353747C (en) | 2004-12-09 | 2004-12-09 | Set-top-box for bidirectional communication apparatus |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100464512C (en) * | 2006-11-21 | 2009-02-25 | 金纯� | Two-way incremental service realizing method based on digital TV one-way set-top box |
| CN101778197A (en) * | 2010-01-25 | 2010-07-14 | 上海享云信息系统有限公司 | Set-top box extension system |
| CN101790029A (en) * | 2010-03-03 | 2010-07-28 | 福建新大陆通信科技有限公司 | Method for performing read-write operation on set top box |
| CN103297821B (en) * | 2012-02-24 | 2018-12-18 | 北京四达时代软件技术股份有限公司 | A kind of method and system for realizing IP two-way function |
| CN103986958A (en) * | 2013-02-07 | 2014-08-13 | 北京东方广视科技股份有限公司 | Cable television set top box, system and method for communication with Ethernet |
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Patent Citations (4)
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| WO2003063487A1 (en) * | 2002-01-24 | 2003-07-31 | Ezcen Inc., Ltd. | Broadcasting system and method supporting vod service |
| WO2004039103A1 (en) * | 2002-10-28 | 2004-05-06 | Nokia Corporation | Graphical indication of a proximately located device |
| JP2004328021A (en) * | 2003-04-21 | 2004-11-18 | Matsushita Electric Ind Co Ltd | Set-top box for bidirectional communication |
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