CN103200442A - Method for using set top box to control high-definition program playing - Google Patents
Method for using set top box to control high-definition program playing Download PDFInfo
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- CN103200442A CN103200442A CN2013101179669A CN201310117966A CN103200442A CN 103200442 A CN103200442 A CN 103200442A CN 2013101179669 A CN2013101179669 A CN 2013101179669A CN 201310117966 A CN201310117966 A CN 201310117966A CN 103200442 A CN103200442 A CN 103200442A
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- set top
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Abstract
The invention discloses a method for using a set top box to control high-definition program playing. The method for using the set top box to control high-definition program playing comprises the following steps: the set top box establishes a service description table (SDT) to monitor course of the set top box and read a description field hdcpon of a high-bandwidth digital content protection (HDCP) function switch; if the hdcpon field is zero, high-definition multimedia interface (HDMI) output and component output are maintained open; if the hdcpon field is one, the set top box is opened to conduct certification and downloading hdcpkey, and certification is conducted again. The method for using the set top box to control high-definition program playing uses that the set top box establishes the SDT to monitor the course of the set top box, certification of hdcpkey data is conducted by using certification function of the HDCP, clients are reminded and instructed to download the hdcpkey, then the hdcpkey is written into a hdcpkey storage zone agreed by a flash of the set top box, a HDCP function module of the set top box analyses the hdcpkey data and achieves communication with a television, the certification of the HDCP is conducted, and once the conduct certification succeeds, the HDMI output and the component output can be opened. The method for using the set top box to control high-definition program playing solves the problem that in the prior art, users can freely choose high-definition output, the thing that the users can freely choose the high-definition output does not conform to desires of operators.
Description
Technical field
The present invention relates to the control method that a kind of high definition program is play, relate in particular to a kind of method of utilizing set-top box control high definition program to play.
Background technology
Digital Television develop rapidly at present, the digital cable customers number becomes explosive growth, and user's request is more and more, and is more and more to the demand of high-definition programming, for broadcasting and TV front end operator, wish but and can different users be controlled that allow the part authorized user can see high definition TV, the part unauthorized user can only be seen standard definition television, all there is HDMI simultaneously in present most of high definition set-top box, component, AV, four kinds of outputs of s terminal.AV, s terminal are the SD output port, and HDMI, component are the high definition output port.The user can freely select high definition output or SD output, so just produces with the wish of operator and conflicts.
Summary of the invention
Technical problem at above-mentioned prior art existence, the object of the present invention is to provide a kind of method of utilizing set-top box control high definition program to play, this method has solved in the conventional art user can freely select high SD output, the problem that is not inconsistent with the wish of operator.
Purpose of the present invention is achieved through the following technical solutions:
A kind of method of utilizing set-top box control high definition program to play comprises the steps:
A, (English full name is Service Description Table SDT Service Description Table, is to be applied to a kind of in the PSI/SI form of digital TV field at SDT table; SDT Service Description Table has comprised data professional in the descriptive system, for example Business Name, service supplier etc.) in the privately owned descriptor HDCP_OnOff of definition, comprise the HDCP functional switch description field hdcpon of a byte length;
B, behind set-top-box opening, create SDT form monitoring process, read HDCP functional switch description field hdcpon; The English full name of HDCP is High-bandwidth Digital Content Protection: be the HDCP technology.The HDTV(HDTV (High-Definition Television)) be in order to adapt to the high bandwidth of HDTV (High-Definition Television), so HDMI just occurred.HDMI is a kind of high-definition digital interface standard, and it can provide very high bandwidth, nondestructively transmission digital video and audio signal.
If c hdcpon field is 1, the HDCP function of starter motor top box then, the hdcpkey(hdcpkey that the fixed area that set-top box HDCP module is arranged from flash reads the agreement byte number is the key that has the digital content protection use of HDMI interface, be the key whether hdcpon checking of the present invention passes through), and analyze;
By HDMI line and television set interactive authentication, if by authentication, then open the output of HDMI and component; If authentification failure, then display interface reminds the user can how to operate to download hdcpkey in flash, and the charge situation is downloaded in explanation, when the user selects to download hdcpkey, then download hdcpkey by digital tv network and write among the set-top box flash, again authentication then behind the authentication success, then can be opened the output of HDMI and component;
If the user selects not download hdcpkey, then close the output of HDMI and component;
If d hdcpon field is 0, then stay open HDMI output and component output.
The present invention compares than prior art, has the following advantages and beneficial effect:
The present invention has utilized set-top box to set up the SDT form and has monitored its process, carry out the authentication of hdcpkey data by the authentication function of HDCP, and remind and instruct the client to download hdcpkey, then hdcpkey is written in the hdcpkey storage area of set-top box flash agreement, set-top box HDCP functional module can be analyzed the hdcpkey data and realize communicating by letter with television set, carry out the authentication of HDCP, in case behind the authentication success, can open HDMI output and component output.This method has solved in the conventional art user can freely select high SD output, the problem that is not inconsistent with the wish of operator.
Description of drawings
Fig. 1 is schematic flow sheet of the present invention.
Embodiment
Be described in further detail below in conjunction with the present invention of embodiment:
Embodiment
As shown in Figure 1, a kind of method of utilizing set-top box control high definition program to play establishes SDT form monitoring process (being the SDT table) in the set-top box of the present invention, can analyze the HDCP_OnOff descriptor, reads the hdcpon field.Comprise the steps:
A, at first allow set-top box carry out electric initialization, (English full name is Software Development Kit at the SDT table, be that ARM company carries out applied software development and a whole set of integrated developing instrument of releasing at the ARM chip for the convenience of the user) in the privately owned descriptor HDCP_OnOff of definition, comprise the HDCP functional switch description field hdcpon of a byte length.
B, behind set-top-box opening, create SDT form monitoring process, read HDCP functional switch description field hdcpon.The English full name of HDCP is High-bandwidth Digital Content Protection: be the HDCP technology.The HDTV(HDTV (High-Definition Television)) be in order to adapt to the high bandwidth of HDTV (High-Definition Television), so HDMI just occurred.HDMI is a kind of high-definition digital interface standard, and it can provide very high bandwidth, nondestructively transmission digital video and audio signal.
If c hdcpon field is 1, the HDCP function of starter motor top box then, the hdcpkey(hdcpkey that the fixed area that set-top box HDCP module is arranged from flash reads the agreement byte number is the key that has the digital content protection use of HDMI interface, be the key whether hdcpon checking of the present invention passes through), and analyze;
By HDMI line and television set interactive authentication, if by authentication, then open the output of HDMI and component; If authentification failure, then display interface reminds the user can how to operate to download hdcpkey in flash, and the charge situation is downloaded in explanation, when the user selects to download hdcpkey, then download hdcpkey by digital tv network and write among the set-top box flash, again authentication then behind the authentication success, then can be opened the output of HDMI and component;
If the user selects not download hdcpkey, then close the output of HDMI and component;
This enforcement provides the concrete enforcement principle of HDMI line and television set interactive authentication:
1, among the set-top box flash hdcpkey data are arranged, set-top box HDCP functional module is analyzed the hdcpkey data and is communicated by letter with television set, carries out the HDCP authentication, and authentication success is then opened HDMI output and component output; Authentification failure is then closed HDMI output and component output.
2, do not have the hdcpkey data among the set-top box flash, the present invention understands display interface and reminds the user to download hdcpkey;
If customer selecting is downloaded, can download hdcpkey and write among the set-top box flash by digital tv network, Hdcpkey writes in the hdcpkey storage area of set-top box flash agreement, and authentication again: set-top box HDCP functional module is analyzed the hdcpkey data and is communicated by letter with television set, carries out the HDCP authentication.Authentication success is then opened HDMI output and component output; Authentification failure is then closed HDMI output and component output.
If customer selecting is not downloaded, the output of display interface prompting user high definition will be closed, and please switch to AV output, close HDMI output and component output then.
If d hdcpon field is 0, then stay open HDMI output and component output.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (1)
1. a method of utilizing set-top box control high definition program to play is characterized in that: comprise the steps:
A, in SDT table the privately owned descriptor HDCP_OnOff of definition, comprise the HDCP functional switch description field hdcpon of a byte length;
B, behind set-top-box opening, create SDT form monitoring process, read HDCP functional switch description field hdcpon;
If c hdcpon field is 1, the HDCP function of starter motor top box then, set-top box HDCP module reads the hdcpkey of agreement byte number from the fixed area of flash agreement, and analyzes;
By HDMI line and television set interactive authentication, if by authentication, then open the output of HDMI and component; If authentification failure, then display interface reminds the user can how to operate to download hdcpkey in flash, when the user selects to download hdcpkey, then download hdcpkey by digital tv network and write among the set-top box flash, again authentication then, behind the authentication success, then can open the output of HDMI and component;
If the user selects not download hdcpkey, then close the output of HDMI and component;
If d hdcpon field is 0, then stay open HDMI output and component output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310117966.9A CN103200442B (en) | 2013-04-07 | 2013-04-07 | Set Top Box is utilized to control the method that high-definition program is play |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310117966.9A CN103200442B (en) | 2013-04-07 | 2013-04-07 | Set Top Box is utilized to control the method that high-definition program is play |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103200442A true CN103200442A (en) | 2013-07-10 |
| CN103200442B CN103200442B (en) | 2016-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310117966.9A Active CN103200442B (en) | 2013-04-07 | 2013-04-07 | Set Top Box is utilized to control the method that high-definition program is play |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104079994A (en) * | 2014-07-07 | 2014-10-01 | 四川金网通电子科技有限公司 | Authorization system and method based on set top box card-free CA |
Citations (4)
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| CN101931784A (en) * | 2010-07-30 | 2010-12-29 | 康佳集团股份有限公司 | Method for encrypting and decrypting recorded program through HDCP key |
| US20110103472A1 (en) * | 2009-10-01 | 2011-05-05 | Nxp B.V. | Methods, systems and devices for compression of data and transmission thereof using video transmission standards |
| CN102124734A (en) * | 2008-08-13 | 2011-07-13 | 佳能株式会社 | Video control apparatus and control method for video control apparatus |
| US20120224688A1 (en) * | 2011-03-04 | 2012-09-06 | Broadcom Corporation | Enforcing software independent content protection in an electronic device |
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2013
- 2013-04-07 CN CN201310117966.9A patent/CN103200442B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102124734A (en) * | 2008-08-13 | 2011-07-13 | 佳能株式会社 | Video control apparatus and control method for video control apparatus |
| US20110103472A1 (en) * | 2009-10-01 | 2011-05-05 | Nxp B.V. | Methods, systems and devices for compression of data and transmission thereof using video transmission standards |
| CN101931784A (en) * | 2010-07-30 | 2010-12-29 | 康佳集团股份有限公司 | Method for encrypting and decrypting recorded program through HDCP key |
| US20120224688A1 (en) * | 2011-03-04 | 2012-09-06 | Broadcom Corporation | Enforcing software independent content protection in an electronic device |
Non-Patent Citations (1)
| Title |
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| 廖创: "高清数字机顶盒用户界面及HDCP通信协议的实现", 《中国优秀硕士学位论文全文数据库》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104079994A (en) * | 2014-07-07 | 2014-10-01 | 四川金网通电子科技有限公司 | Authorization system and method based on set top box card-free CA |
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| CN103200442B (en) | 2016-06-15 |
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