CN101888471A - Set top box capable of identifying various tuners automatically and identification method thereof - Google Patents
Set top box capable of identifying various tuners automatically and identification method thereof Download PDFInfo
- Publication number
- CN101888471A CN101888471A CN 201010230277 CN201010230277A CN101888471A CN 101888471 A CN101888471 A CN 101888471A CN 201010230277 CN201010230277 CN 201010230277 CN 201010230277 A CN201010230277 A CN 201010230277A CN 101888471 A CN101888471 A CN 101888471A
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- tuner
- recognizer
- top box
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Abstract
The invention discloses a set top box capable of identifying various tuners automatically and an identification method thereof. The set top box comprises a master control chip and a tuner connecting circuit, wherein more than two interface circuits connected with different tuners in a matching mode are arranged at the input end of the tuner connecting circuit; more than two address circuits which perform coding in sequence and are used for identifying different tuners, and each address circuit is correspondingly connected with one interface circuit; the output end of the tuner connecting circuit is connected with the master control chip through an I2C bus; and a tuner identifying program is set in the master control chip. A plurality of interface circuits and address circuits of the tuners are arranged in the set top box, and all preselected tuners are subjected to uniform standardization setting by adopting the tuner identifying program, so that the set top box can identify the various preselected tuners in a matching circuit automatically and replace different tuners without being redesigned and remanufactured, and the competitive strength of manufacturers who manufacture the set top boxes is improved.
Description
Technical field
The present invention relates to technical field of digital television set-top, relate in particular to the set-top box and the recognition methods thereof of the multiple tuner of a kind of automatic identification.
Background technology
Along with the development of Digital Television industry and the continuous release of value added service of digital television, a large amount of information programs offer the user by cable network, and the user receives information program by set-top box.Set-top box inside is provided with tuner and chip, and tuner is used for the program receiving signal and signal is outputed to chip handling, and the signal after the processing is delivered in the television set and play.
One is designed to a certain tuner of an identification and matching existing set-top box, if the tuner that this set-top box is used is difficult to buy for the moment, quality problems appear in this certain batch of tuner when perhaps producing, in the time of perhaps need changing the tuner that uses other manufacturer production owing to other reasonses such as costs, needing redesign to make new set-top box could be complementary with the tuner after changing, can increase the manufacturing cost of set-top box so greatly, the market business opportunity of incuring loss through delay set-top box manufacturer brings loss for set-top box manufacturer.
Summary of the invention
The object of the invention provides a kind of set-top box that can discern multiple tuner automatically; Another object of the present invention provides a kind of described set-top box method of the multiple tuner of identification automatically of utilizing.
The present invention is by the following technical solutions: set-top box comprises main control chip, tuner connecting circuit, the input of wherein said tuner connecting circuit is provided with the interface circuit of the different tuners of coupling connection more than two, be provided with the address circuit of the different tuners of identification of encoding in order more than two in the tuner connecting circuit, interface circuit of the corresponding connection of each address circuit, the output of tuner connecting circuit links to each other with main control chip by the I2C bus, is provided with the tuner recognizer in the main control chip.
The described above-mentioned set-top box automatic identifying method of the multiple tuner of identification automatically that utilizes comprises the steps: step 01: the initialization of tuner recognizer; Step 02: the tuner recognizer is pressed coded sequence by the I2C bus and is connected with address circuit communication in the tuner connecting circuit; Step 03: the tuner recognizer judges whether the address circuit that communication connects is connected with tuner; Step 04: do not connect tuner if the tuner recognizer is judged this address circuit, then the tuner recognizer continues to read the address circuit of next coding, if having connected the address circuit of all sequential encodings, the communication of tuner recognizer all do not find tuner, then the tuner recognizer sends alarm signal, and is out of service; Step 05: if the tuner recognizer has found tuner, the driver that calls this tuner then is set keeps supplying a layer set-top box program use, set-top box utilizes this tuner to begin normal operation.
Described tuner recognizer all is provided with following normalizing parameter to the driver of every kind of tuner: the configuration parameter of tuner (TUNER_CONFIG_DATA) is provided with the public parameter of AGC of tuner; The spreading parameter of tuner (TUNER_CONFIG_EXT) is provided with the characterisitic parameter of every kind of tuner; The initialization function (Tuner_Init) of tuner is finished the initialization to tuner; The control function of tuner (Tuner_Control) is finished the control of frequency to tuner, symbol rate, modulation system; The tuner state obtain function (Tuner_Status), be used to finish obtaining of locking to tuner, the error rate, signal level, signal to noise ratio state.
The present invention utilizes the tuner recognizer to all tuner unified standard settings, and when the tuner of changing was transplanted in the circuit of set-top box, the tuner driver that the tuner recognizer calls was kept supplying a layer set-top box program and directly used.
The invention has the beneficial effects as follows: pass through said structure, a plurality of tuner interfaces and address circuit are set in set-top box, adopt of tuner the seek unity of standard setting of tuner recognizer again to all preliminary elections, make the set-top box multiple tuner of preliminary election in the identification and matching circuit automatically, set-top box is changed does not need to redesign manufacturing again when using different tuners, improve the competitiveness of set-top box manufacturer.
Description of drawings
Now in conjunction with the accompanying drawings the present invention is further elaborated: Fig. 1 is the structural representation that set-top box of the present invention connects a kind of tuner.
Embodiment
As shown in Figure 1, the present invention includes main control chip 1, tuner connecting circuit 2, the input of wherein said tuner connecting circuit 2 is provided with the interface circuit 21 of the different tuners of coupling connection more than two, be provided with the address circuit 22 of the different tuners of identification of encoding in order more than two in the tuner connecting circuit 2, interface circuit 21 of each address circuit 22 corresponding connection, the output of tuner connecting circuit 2 links to each other with main control chip 1 by I2C bus 3, be provided with tuner recognizer 11 in the main control chip 1, tuner 4 is connected on the interface circuit 21.
The described above-mentioned set-top box automatic identifying method of the multiple tuner of identification automatically that utilizes comprises the steps: step 01: 11 initialization of tuner recognizer; Step 02: tuner recognizer 11 is pressed coded sequence by I2C bus 3 and is connected with address circuit 22 communications in the tuner connecting circuit 2; Step 03: tuner recognizer 11 judges whether the address circuit 22 that communication connects is connected with tuner; Step 04: if tuner recognizer 11 judges that this address circuit 22 does not connect tuner, then tuner recognizer 11 continues to read the address circuit 22 of next coding, if having connected the address circuit 22 of all sequential encodings, 11 communications of tuner recognizer all do not find tuner, then tuner recognizer 11 sends alarm signal, and is out of service; Step 05: if tuner recognizer 11 has found tuner, the driver that calls this tuner then is set keeps supplying a layer set-top box program use, set-top box utilizes this tuner to begin normal operation.
The driver of 11 pairs of every kind of tuners of described tuner recognizer all is provided with following normalizing parameter: the configuration parameter of tuner (TUNER_CONFIG_DATA) is provided with the public parameter of AGC of tuner; The spreading parameter of tuner (TUNER_CONFIG_EXT) is provided with the characterisitic parameter of every kind of tuner; The initialization function (Tuner_Init) of tuner is finished the initialization to tuner; The control function of tuner (Tuner_Control) is finished the control of frequency to tuner, symbol rate, modulation system; The tuner state obtain function (Tuner_Status), be used to finish obtaining of locking to tuner, the error rate, signal level, signal to noise ratio state.
Claims (3)
1. automatic set-top box of the multiple tuner of identification, comprise main control chip, tuner connecting circuit, it is characterized in that: the input of described tuner connecting circuit is provided with the interface circuit of the different tuners of coupling connection more than two, be provided with the address circuit of the different tuners of identification of encoding in order more than two in the tuner connecting circuit, interface circuit of the corresponding connection of each address circuit, the output of tuner connecting circuit links to each other with main control chip by the I2C bus, is provided with the tuner recognizer in the main control chip.
2. set-top box according to claim 1 is the method for the multiple tuner of identification automatically, it is characterized in that: the described above-mentioned set-top box automatic identifying method of the multiple tuner of identification automatically that utilizes comprises the steps:
Step 01: tuner recognizer initialization;
Step 02: the tuner recognizer is pressed coded sequence by the I2C bus and is connected with address circuit communication in the tuner connecting circuit;
Step 03: the tuner recognizer judges whether the address circuit that communication connects is connected with tuner;
Step 04: do not connect tuner if the tuner recognizer is judged this address circuit, then the tuner recognizer continues to read the address circuit of next coding, if having connected the address circuit of all sequential encodings, the communication of tuner recognizer all do not find tuner, then the tuner recognizer sends alarm signal, and is out of service;
Step 05: if the tuner recognizer has found tuner, the driver that calls this tuner then is set keeps supplying a layer set-top box program use, set-top box utilizes this tuner to begin normal operation.
3. the method for the multiple tuner of automatic identification according to claim 2 is characterized in that: described tuner recognizer all is provided with following normalizing parameter to the driver of each tuner:
The configuration parameter of tuner (TUNER_CONFIG_DATA) is provided with the public parameter of AGC of tuner;
The spreading parameter of tuner (TUNER_CONFIG_EXT) is provided with the characterisitic parameter of every kind of tuner;
The initialization function (Tuner_Init) of tuner is finished the initialization to tuner;
The control function of tuner (Tuner_Control) is finished the control of frequency to tuner, symbol rate, modulation system;
The tuner state obtain function (Tuner_Status), be used to finish obtaining of locking to tuner, the error rate, signal level, signal to noise ratio state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102302775A CN101888471B (en) | 2010-07-19 | 2010-07-19 | Set top box capable of identifying various tuners automatically and identification method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102302775A CN101888471B (en) | 2010-07-19 | 2010-07-19 | Set top box capable of identifying various tuners automatically and identification method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101888471A true CN101888471A (en) | 2010-11-17 |
| CN101888471B CN101888471B (en) | 2012-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102302775A Expired - Fee Related CN101888471B (en) | 2010-07-19 | 2010-07-19 | Set top box capable of identifying various tuners automatically and identification method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN101888471B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102170587A (en) * | 2011-03-07 | 2011-08-31 | 深圳市同洲电子股份有限公司 | Method and device for automatically identifying high frequency turner models |
| CN102510531A (en) * | 2011-10-20 | 2012-06-20 | 山东泰信电子有限公司 | Method for automatically identifying tuner and demodulator of digital television STB (Set Top Box) |
| CN103297728A (en) * | 2013-06-17 | 2013-09-11 | 深圳创维－Rgb电子有限公司 | Method and device for identifying tuner and television |
| CN104581375A (en) * | 2015-02-05 | 2015-04-29 | 四达时代通讯网络技术有限公司 | Tuner identification method of set top box and tuner identification device of set top box |
| CN106375856A (en) * | 2016-08-30 | 2017-02-01 | 青岛海信宽带多媒体技术有限公司 | Drive method and device for smart terminal |
| CN106603089A (en) * | 2017-01-16 | 2017-04-26 | 北京星网卫通科技开发有限公司 | Multi-LNB multi-local-oscillation control method and device |
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| US20020051469A1 (en) * | 2000-10-26 | 2002-05-02 | Koninklijke Philips Electronics N.V. | Decoder supporting multiple inputs |
| JP2006319797A (en) * | 2005-05-13 | 2006-11-24 | Matsushita Electric Ind Co Ltd | Broadcast receiving apparatus and remote controller |
| CN1902908A (en) * | 2003-11-07 | 2007-01-24 | 英特尔公司 | Automatic program restoration when a programming break ends |
| CN201114410Y (en) * | 2007-09-05 | 2008-09-10 | 青岛海信电器股份有限公司 | High-frequency header selection and switch circuit and debugging device using this circuit |
| CN101465977A (en) * | 2007-12-21 | 2009-06-24 | 康佳集团股份有限公司 | Method, network and equipment for playing television signal |
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2010
- 2010-07-19 CN CN2010102302775A patent/CN101888471B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020051469A1 (en) * | 2000-10-26 | 2002-05-02 | Koninklijke Philips Electronics N.V. | Decoder supporting multiple inputs |
| CN1902908A (en) * | 2003-11-07 | 2007-01-24 | 英特尔公司 | Automatic program restoration when a programming break ends |
| JP2006319797A (en) * | 2005-05-13 | 2006-11-24 | Matsushita Electric Ind Co Ltd | Broadcast receiving apparatus and remote controller |
| CN201114410Y (en) * | 2007-09-05 | 2008-09-10 | 青岛海信电器股份有限公司 | High-frequency header selection and switch circuit and debugging device using this circuit |
| CN101465977A (en) * | 2007-12-21 | 2009-06-24 | 康佳集团股份有限公司 | Method, network and equipment for playing television signal |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102170587A (en) * | 2011-03-07 | 2011-08-31 | 深圳市同洲电子股份有限公司 | Method and device for automatically identifying high frequency turner models |
| CN102510531A (en) * | 2011-10-20 | 2012-06-20 | 山东泰信电子有限公司 | Method for automatically identifying tuner and demodulator of digital television STB (Set Top Box) |
| CN103297728A (en) * | 2013-06-17 | 2013-09-11 | 深圳创维－Rgb电子有限公司 | Method and device for identifying tuner and television |
| CN103297728B (en) * | 2013-06-17 | 2016-10-12 | 深圳创维－Rgb电子有限公司 | A kind of identify the method for tuner, device and television set |
| CN104581375A (en) * | 2015-02-05 | 2015-04-29 | 四达时代通讯网络技术有限公司 | Tuner identification method of set top box and tuner identification device of set top box |
| CN106375856A (en) * | 2016-08-30 | 2017-02-01 | 青岛海信宽带多媒体技术有限公司 | Drive method and device for smart terminal |
| CN106375856B (en) * | 2016-08-30 | 2019-07-26 | 青岛海信宽带多媒体技术有限公司 | A kind of driving method and device of intelligent terminal |
| CN106603089A (en) * | 2017-01-16 | 2017-04-26 | 北京星网卫通科技开发有限公司 | Multi-LNB multi-local-oscillation control method and device |
| CN106603089B (en) * | 2017-01-16 | 2018-10-16 | 北京星网卫通科技开发有限公司 | A kind of more local oscillator control method and device of more LNB |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101888471B (en) | 2012-05-23 |
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Granted publication date: 20120523 Termination date: 20180719 |