CN102833611A - Set top box and power-saving control method - Google Patents
Set top box and power-saving control method Download PDFInfo
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- CN102833611A CN102833611A CN2012102992407A CN201210299240A CN102833611A CN 102833611 A CN102833611 A CN 102833611A CN 2012102992407 A CN2012102992407 A CN 2012102992407A CN 201210299240 A CN201210299240 A CN 201210299240A CN 102833611 A CN102833611 A CN 102833611A
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Abstract
The invention discloses a set top box and a power-saving control method. The set top box comprises a main chip and a power supply control circuit. The main chip is used for outputting control signals for indicating to cut off a power supply circuit through an output port of the main chip after determining that a television connected with the set top box receives video signals through an HDMI (high-definition multimedia interface) channel. The power supply control circuit is used for receiving the control signals for indicating to cut off the power supply circuit, and cutting off the power supply circuit of an analog audio and video drive circuit in the set top box according to the control signals. The television receives the video signals through the HDMI channel can be automatically judged, so that a power supply control circuit can be controlled to cut off the power supply circuit of the analog audio and video drive circuit. Therefore, the requirement of watching the television through the HDMI signals received by the high-definition television can be met for users, working of soft/hardware modules of analog audio and video is stopped, and power consumption of the set top box is greatly lowered.
Description
Technical field
The present invention relates to intelligent television STB technology, relate in particular to the method for a kind of STB and control economize on electricity thereof.
Background technology
Along with development of science and technology, digitlization is more and more gone into the thick of life.Current PC is intelligent for a long time, and mobile phone and flat board are also intelligent in large tracts of land, and TV TV also moves towards intelligent in recent years.The intelligent television of releasing at present has the not available application platform advantage of traditional tv.Intelligent television has been realized various application services such as web search, Internet Protocol Television, video request program, digital music, Internet news, network video telephone based on STB.The basis of these application services all is to be based upon on the basis that STB is connected to network.
Digital TV in high resolution is as an important development trend of DTV industry; See from domestic and international situation; The growth of explosion type has appearred in the market of wired digital TV in high resolution STB, and the high definition STB has become the selection that most radio and TV operators carry out TV TV digitlization conversion; Therefore, the high definition STB has entered in users' the family.
The characteristics of high definition STB are to receive, handle and to export high resolution audio and video signal.Consider the multiple possibility of the reception terminal of television set in the users home; Generally speaking; High definition STB audio frequency and video lead-out terminal not only comprises the HDMI terminal of exporting high-definition signal; But also comprise component YPBPR video interface, composite video CVBS video interface and left and right acoustic channels audio frequency, totally 3 groups of analog audio-video interfaces.Because enhancing, the raising of performance and the increase of interface of high definition set-top box functionality, complete machine work power consumption generally about 10W, is about the twice of SD STB.Therefore, the high definition STB of prior art has the demand of practicing thrift power consumption.
Summary of the invention
The embodiment of the invention provides the method for a kind of STB and control economize on electricity thereof, in order to the high definition that can practice thrift power consumption STB to be provided.
According to an aspect of the present invention, a kind of STB is provided, has comprised:
Master chip, be used for the television set of confirming to be connected with said STB be through HDMI passage receiving video signals after, indicate the control signal of cut-out power supply circuits through its output port output;
Power-supplying circuit is used to receive the control signal that power supply circuits are cut off in said indication, and cuts off the power supply circuits of the analog audio-video drive circuit in the said STB according to this control signal.
Wherein, said power-supplying circuit specifically comprises metal-oxide-semiconductor;
The grid of said metal-oxide-semiconductor is in order to receive said control signal, and the drain electrode of said metal-oxide-semiconductor and source electrode are serially connected with in the power supply circuits of said analog audio-video drive circuit.
Said analog audio-video drive circuit specifically comprises:
High definition filtering chip for driving is in order to receive the YP of said master chip output
BP
RSignal, and to the YP of said master chip output
BP
RAfter signal carries out Filtering Processing, through the YP after the component output terminal output Filtering Processing
BP
RSignal;
SD filtering chip for driving in order to receiving the CVBS signal of said master chip output, and is carried out Filtering Processing to the CVBS signal of said master chip output;
Audio frequency amplifier chip for driving, in order to AUDIO (audio frequency) signal of reception master chip output, and the AUDIO signal that master chip is exported carries out processing and amplifying;
Wherein, the CVBS signal after the said SD filtering chip for driving Filtering Processing, and the AUDIO signal after the said audio frequency amplifier chip for driving processing and amplifying is through the output of complex tone video output terminal.
Further, said master chip also be used for the television set of confirming to be connected with said STB be through HDMI passage receiving video signals after, detect the switch setting of automatic energy-saving mode; And
The control signal that said master chip cuts off power supply circuits through its output port output indication is specially:
Said master chip cuts off the control signal of power supply circuits through its output port output indication after definite said automatic energy-saving mode is set to out.
Said master chip also is used for after definite said automatic energy-saving mode is set to out, stopping the operation of the analog audio-video signal conversion module in the working procedure in this chip; Wherein, said analog audio-video signal conversion module is used for converting the audio, video data of audio/video decoding module decoding into YP
BP
RSignal, CVBS signal and AUDIO signal, and pass through YP respectively
BP
RSignal output port, CVBS signal output port and the output of AUDIO signal output port.
According to another aspect of the present invention, a kind of method of STB control economize on electricity is provided also, has comprised:
The master chip of said STB the television set of confirming to be connected with said STB be through HDMI passage receiving video signals after, indicate the control signal of cut-out power supply circuits to power-supplying circuit output through its output port;
Said power-supplying circuit cuts off the power supply circuits of the analog audio-video drive circuit in the said STB according to this control signal.
Preferably, the master chip of said STB confirming the television set that is connected with said STB be through HDMI passage receiving video signals after, said method also comprises:
Said master chip detects the switch setting of automatic energy-saving mode; And
The said control signal of cutting off power supply circuits to power-supplying circuit output indication through its output port is specially:
Said master chip cuts off the control signal of power supply circuits through its output port output indication after definite said automatic energy-saving mode is set to out.
After definite said automatic energy-saving mode was set to out, said method also comprised at said master chip:
Said master chip stops the operation of the analog audio-video signal conversion module in the working procedure in this chip; Wherein, said analog audio-video signal conversion module is used for converting the audio, video data of audio/video decoding module decoding into YP
BP
RSignal, CVBS signal and AUDIO signal, and pass through YP respectively
BP
RSignal output port, CVBS signal output port and the output of AUDIO signal output port.
The master chip of said STB confirming the television set that is connected with said STB be through HDMI passage receiving video signals before, said method also comprises:
Behind said set-top-box opening, said master chip is connected the control signal of power supply circuits to power-supplying circuit output indication through its output port; And move said analog audio-video signal conversion module and HDMI signal conversion module; Wherein, said HDMI signal conversion module is used for the audio, video data conversion HDMI signal with said audio/video decoding module decoding, exports through the HDMI interface;
Said power-supplying circuit is connected the power supply circuits of the analog audio-video drive circuit in the said STB according to the control signal of said indication connection power supply circuits.
Behind said set-top-box opening, said method also comprises:
The said automatic energy-saving mode of instruction that said master chip is imported based on the user is set to or closes.
The STB of the embodiment of the invention is through HDMI passage receiving video signals owing to judging television set automatically, thus the power supply circuits of the analog audio-video drive circuit in the control power-supplying circuit cutting machine top box and the operation of the analog audio-video signal conversion module in the shut down procedure; Like this; Both can satisfy the user and receive the demand that the HDMI signal is watched TV, stop the work of the module of software and hardware of analog audio-video again, greatly reduce the power consumption of STB through HDTV; And; Can also reduce the heating of STB, help the reliability of STB, and the life-span that prolongs STB.
Description of drawings
Fig. 1 is the internal circuit block diagram of the STB of the embodiment of the invention;
Fig. 2 is the circuit diagram of the power-supplying circuit of the embodiment of the invention;
Fig. 3 is the module frame chart of master chip working procedure of the STB of the embodiment of the invention;
Fig. 4 is the method flow diagram that the master chip of the STB of the embodiment of the invention is realized economize on electricity control.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, below with reference to accompanying drawing and enumerate preferred embodiment, to further explain of the present invention.Yet, need to prove that many details of listing in the specification only are in order to make the reader to one or more aspects of the present invention a thorough understanding arranged, even if there are not these specific details also can realize these aspects of the present invention.
Terms such as " module " that the application uses, " system " are intended to comprise the entity relevant with computer, such as but not limited to hardware, firmware, combination thereof, software or executory software.For example, module can be, but be not limited in: the thread of the process of moving on the processor, processor, object, executable program, execution, program and/or computer.For instance, the application program of moving on the computing equipment can be a module with this computing equipment.One or more modules can be positioned at an executory process and/or thread.
Inventor of the present invention analyzes the high definition STB of prior art, finds the years development of dull and stereotyped HDTV, and the panel TV that has HDMI has become the main product of existing market and user's first-selected product; So the user of quite a lot of ratio uses the HDMI interface of high definition STB to be connected with dull and stereotyped HDTV usually, to obtain the experience that digital TV in high resolution brings.But simultaneously, the module of software and hardware of each analog audio-video in the high definition STB still continues operation and work, causes the high definition set-top box power consumption higher, and the heat that produces during these modules work can have a negative impact to the whole aircraft reliability life-span.But, if do not give these module for power supply or stopped the program running of analog audio-video signal conversion module, so, if the user is when needs connect Standard Definition Television, the Standard Definition Television that this high definition STB just can't be compatible traditional.
Based on above-mentioned analysis; Main thought of the present invention does; The high definition STB gets under the different energy-saving modes, under different energy-saving modes according to current user's request; Master chip in the high definition STB (for example, CPU or micro controller etc.) through the power supply circuits of each module of IO mouth control cut-out and connection and stop the program running of analog audio-video signal conversion module; Thereby under the prerequisite of meeting consumers' demand, the power consumption of the STB that practices every conceivable frugality.
Specify the technical scheme of the embodiment of the invention below in conjunction with accompanying drawing.The internal circuit block diagram of the STB of the embodiment of the invention, as shown in Figure 1, comprising: master chip 101, power-supplying circuit 102, analog audio-video drive circuit 103.
Wherein, generally include in the analog audio-video drive circuit 103: high definition filtering chip for driving 131, SD filtering chip for driving 132, audio frequency amplifier chip for driving 133.
The YP of high definition filtering chip for driving 131 and master chip 101
BP
RSignal output port links to each other, in order to receive the YP of master chip 101 outputs
BP
R(the Analog Component Video signal, wherein Y is a luminance signal, P
BBe the analogue component blue difference signal, P
RBe the analogue component red color difference signal) signal, and to the YP of master chip 101 output
BP
RAfter signal carries out Filtering Processing, through the YP after the component output terminal output Filtering Processing
BP
RSignal; Television set is at the YP that receives through the output of component output terminal
BP
RCan carry out analog component signal behind the signal shows.
SD filtering chip for driving 132 links to each other with the CVBS signal output port of master chip 101; In order to receive the CVBS (composite video signal of master chip 101 outputs; Composite Video Blanking Synchronization) signal, and the CVBS signal that master chip 101 is exported carries out Filtering Processing;
Audio frequency amplifier chip for driving 133 links to each other with the AUDIO signal output port of master chip 101, and in order to AUDIO (audio frequency) signal of reception master chip 101 outputs, and the AUDIO signal that master chip 101 is exported carries out processing and amplifying;
CVBS signal after SD filtering chip for driving 132 Filtering Processing, and the AUDIO signal after audio frequency amplifier chip for driving 133 processing and amplifying is through the output of AV (Audio Video, audio frequency and video) lead-out terminal; Television set can link to each other with the AV lead-out terminal through its AV input interface, receives from the audio-video signal of AV lead-out terminal output to show.
Usually master chip 101 can be CPU or micro controller etc.; Master chip 101 transmits control signal to power-supplying circuit 102 through an output port; Power-supplying circuit 102 is controlled the cut-out and the connection of the power supply circuits of analog audio-video drive circuit 103 in order to according to the control signal that receives.
The output port that master chip 101 transmits control signal to power-supplying circuit 102; It specifically can be a GPIO (general input and output) port of master chip 101; This GPIO port is set to output port in master chip 101, then can use the outside outputs level signals of this port.
For example, if master chip 101 sends low level through output port to power-supplying circuit 102, this low level is cut off the control signal of power supply circuits for indication; Then power-supplying circuit 102 cuts off the power supply circuits of analog audio-video drive circuit 103 after receiving this low level control signal.Like this, the power supply circuits of high definition filtering chip for driving 131, SD filtering chip for driving 132, audio frequency amplifier chip for driving 133 all are cut off; High definition filtering chip for driving 131, SD filtering chip for driving 132, audio frequency amplifier chip for driving 133 quit work, and can reduce the power consumption of STB greatly.
If master chip 101 sends high level through output port to power-supplying circuit 102, this high level is connected the control signal of power supply circuits for indication; Then power-supplying circuit 102 is connected the power supply circuits of analog audio-video drive circuit 103 after receiving the control signal of this high level.Like this, the power supply circuits of high definition filtering chip for driving 131, SD filtering chip for driving 132, audio frequency amplifier chip for driving 133 all are switched on, thereby can the analog audio-video signal be provided to the TV that is connected with STB.
Above-mentioned power-supplying circuit 102 can be realized through metal-oxide-semiconductor (can select P raceway groove or N raceway groove): the grid of metal-oxide-semiconductor (G) utmost point is in order to receive control signal, and drain electrode of metal-oxide-semiconductor (D) and source electrode (S) are serially connected with in the power supply circuits of analog audio-video drive circuit 103; Conducting between the control signal of metal-oxide-semiconductor through grid (G) utmost point, control drain electrode (D) and source electrode (S) or end reaches and cuts off or the purpose of connection power supply circuits.
Fig. 2 shows a kind of concrete power-supplying circuit 102; Wherein, VCC1 is the supply power voltage of high definition filtering chip for driving 131 and SD filtering chip for driving 132; VCC2 is the supply power voltage of audio frequency amplifier chip for driving 133.The control signal of first metal-oxide-semiconductor in order to receive according to its grid (G) utmost point, the break-make of the power supply circuits of control VCC1; The control signal of second metal-oxide-semiconductor in order to receive according to its grid (G) utmost point, the break-make of the power supply circuits of control VCC2.
Obviously, those skilled in the art can adopt the power-supplying circuit of other conversion according to the function of power-supplying circuit 102, to realize the break-make of control power supply circuits; And the power-supplying circuit of these conversion also should be regarded as protection scope of the present invention under the situation that does not break away from the principle of the invention.
Working procedure in master chip 101; The method that realizes economize on electricity control is: start at set-top-box opening; Master chip 101 confirm through its HDMI interface the television set be connected with this STB be through HDMI passage receiving video signals after; Then cut off the control signal of power supply circuits through its output port output indication, control power-supplying circuit 102 cuts off the power supply circuits of analog audio-video drive circuit 103.Be that master chip 101 is arranged at the HDMI passage as if the video output through the definite television set that is connected with this STB of its HDMI interface; Then cut off the control signal of power supply circuits in order to indication through its output port output; After power-supplying circuit 102 receives the control signal in order to indication cut-out power supply circuits; Cut off the power supply circuits of analog audio-video drive circuit 103, get into energy-saving mode.Through this method, STB need not re-use the analog audio-video signal usually judging HDTV after use HDMI passage receives the high-definition digital signal; The work that stops analog audio-video drive circuit 103 can reduce the power consumption of STB greatly, satisfies user's television-viewing demand simultaneously again.
In practical application, the program of operation can comprise module as shown in Figure 3 in the master chip 101, wherein, comprising: main program control module 301, analog audio-video signal conversion module 302, HDMI signal conversion module 303, audio/video decoding module 304.
Wherein, audio/video decoding module 304 is resolved and is called the software and hardware Decode engine in order to the code stream that STB is received and video data is decoded and through correlation module audio signal handled.
Analog audio-video signal conversion module 302 converts exportable YP in order to the audio, video data with 304 decodings of audio/video decoding module
BP
RSignal, CVBS signal and AUDIO signal pass through YP respectively
BP
RSignal output port, CVBS signal output port and the output of AUDIO signal output port.
HDMI signal conversion module 303 is exported through the HDMI interface in order to the audio, video data conversion HDMI signal with 304 decodings of audio/video decoding module; Output to TV through the HDMI of STB lead-out terminal from STB from the HDMI signal of HDMI interface output.
Main program control module 301 can be controlled the operation of analog audio-video signal conversion module 302 and HDMI signal conversion module 303 or stop.
Particularly, main program control module 301 operations in the master chip 101 realize the method flow that economize on electricity is controlled, can be as shown in Figure 4, comprise the steps:
S401: set-top-box opening starts;
S402: the main program control module 301 in the master chip 101 is carried out initialization operation.
Main program control module 301 in the master chip 101 is carried out initialization operation and is comprised following operation: the initialization of the GPIO port of master chip 101; The initialization of analog audio-video signal conversion module 302, HDMI signal conversion module 303.
Wherein, comprise the initialization of the output port that links to each other with power-supplying circuit 102, promptly through this output port output initial control signal, this initial control signal is connected the control signal of power supply circuits for indication.
Bring into operation after 302 initialization of analog audio-video signal conversion module, can pass through YP after 302 operations of analog audio-video signal conversion module
BP
RSignal output port, CVBS signal output port and AUDIO signal output port are exported YP respectively
BP
RSignal, CVBS signal and AUDIO signal.
Bring into operation after 303 initialization of HDMI signal conversion module, can be after 303 operations of HDMI signal conversion module through HDMI interface output HDMI signal.
S403: main program control module 301 judges that whether the television set that is connected with this STB is through HDMI passage receiving video signals; If, execution in step S404; Otherwise, execution in step S411;
Particularly, main program control module 301 judges that whether the television set that is connected with this STB through the process of HDMI passage receiving video signals is:
Main program control module 301 is connected communication through HDMI signal conversion module 303 with TV;
Set up failure if connect communication, explain that then television set is not connected with this STB through the HDMI passage, judge that then the television set that is connected with this STB is not through HDMI passage receiving video signals;
Set up successfully if connect communication, then main program control module 301 confirms that through HDMI signal conversion module 303 and TV and communication television set is current whether through HDMI passage receiving video signals; If it is through HDMI passage receiving video signals that television set is replied, then definite television set is current to be through HDMI passage receiving video signals; Otherwise, confirm television set current be not through HDMI passage receiving video signals.
S404: main program control module 301 detects the switch setting of automatic energy-saving mode; If energy-saving mode is set to out automatically, then execution in step S405 gets into energy-saving mode; Otherwise execution in step S411 is operated under the non-energy-saving mode.
Judge television set current be through HDMI passage receiving video signals after, also further detect the setting of the switch of automatic energy-saving mode.The user can be behind set-top-box opening, through remote controller or button input instruction, in order to automatic energy-saving mode to be set for opening or closing; That is to say that master chip can be set to according to the said automatic energy-saving mode of instruction of user's input or close.For example, the user can get into the interface that automatic energy-saving mode is set at menu interface, selects automatic energy-saving mode for opening or being to close through remote controller.
Need use the HDMI interface of STB to connect HDTV the user; And also need use component output terminal and complex tone video output terminal output audio-video signal to have only the television set of analog audio-video input interface to another simultaneously, then the user can be provided with automatic energy-saving mode for closing; Like this, be through HDMI passage receiving video signals even main program control module 301 is judged television set, can not enter into energy-saving mode yet, and still at component output terminal and complex tone video output terminal output audio-video signal.
And in most cases, the user can not use STB to connect HDTV simultaneously and another has only analog audio-video input interface television set, and so, the user can be provided with automatic energy-saving mode for opening; Like this, when connecting HDTV through the HDMI lead-out terminal, STB can get into energy-saving mode, thereby practices thrift the power consumption of STB.
S405: main program control module 301 is operated under the energy-saving mode.
Particularly, main program control module 301 is operated under the energy-saving mode: the control signal of power supply circuits is cut off in the output port output indication that 301 controls of main program control module link to each other with power-supplying circuit 102; And, stop the operation of analog audio-video signal conversion module 302.
Power-supplying circuit 102 cuts off the control signal of power supply circuits according to the indication that receives, and cuts off the power supply circuits of analog audio-video drive circuit 103.
S411: main program control module 301 is operated under the non-energy-saving mode.
Particularly, main program control module 301 is operated under the non-energy-saving mode: the control signal of power supply circuits is connected in the output port output indication that 301 controls of main program control module link to each other with power-supplying circuit 102; And operation analog audio-video signal conversion module 302 makes it to export the analog audio-video signal.
Power-supplying circuit 102 is connected the power supply circuits of analog audio-video drive circuit 103 according to the control signal of the indication connection power supply circuits that receive.
The STB of the embodiment of the invention is through HDMI passage receiving video signals owing to judging television set automatically, thus the power supply circuits of the analog audio-video drive circuit in the control power-supplying circuit cutting machine top box; Like this; Both can satisfy the user and receive the demand that the HDMI signal is watched TV, stop the work of the module of software and hardware of analog audio-video again, greatly reduce the power consumption of STB through HDTV; And; Can also reduce the heating of STB, help the reliability of STB, and the life-span that prolongs STB.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to accomplish through program; This program can be stored in the computer read/write memory medium, as: ROM/RAM, magnetic disc, CD etc.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (10)
1. STB comprises:
Master chip, be used for the television set of confirming to be connected with said STB be through HDMI passage receiving video signals after, indicate the control signal of cut-out power supply circuits through its output port output;
Power-supplying circuit is used to receive the control signal that power supply circuits are cut off in said indication, and cuts off the power supply circuits of the analog audio-video drive circuit in the said STB according to this control signal.
2. STB as claimed in claim 1 is characterized in that said power-supplying circuit specifically comprises metal-oxide-semiconductor;
The grid of said metal-oxide-semiconductor is in order to receive said control signal, and the drain electrode of said metal-oxide-semiconductor and source electrode are serially connected with in the power supply circuits of said analog audio-video drive circuit.
3. STB as claimed in claim 2 is characterized in that, said analog audio-video drive circuit specifically comprises:
High definition filtering chip for driving is in order to receive the YP of said master chip output
BP
RSignal, and to the YP of said master chip output
BP
RAfter signal carries out Filtering Processing, through the YP after the component output terminal output Filtering Processing
BP
RSignal;
SD filtering chip for driving in order to receiving the CVBS signal of said master chip output, and is carried out Filtering Processing to the CVBS signal of said master chip output;
Audio frequency amplifier chip for driving, in order to AUDIO (audio frequency) signal of reception master chip output, and the AUDIO signal that master chip is exported carries out processing and amplifying;
Wherein, the CVBS signal after the said SD filtering chip for driving Filtering Processing, and the AUDIO signal after the said audio frequency amplifier chip for driving processing and amplifying is through the output of complex tone video output terminal.
4. STB as claimed in claim 3 is characterized in that,
Said master chip also be used for the television set of confirming to be connected with said STB be through HDMI passage receiving video signals after, detect the switch setting of automatic energy-saving mode; And
The control signal that said master chip cuts off power supply circuits through its output port output indication is specially:
Said master chip cuts off the control signal of power supply circuits through its output port output indication after definite said automatic energy-saving mode is set to out.
5. STB as claimed in claim 4 is characterized in that,
Said master chip also is used for after definite said automatic energy-saving mode is set to out, stopping the operation of the analog audio-video signal conversion module in the working procedure in this chip; Wherein, said analog audio-video signal conversion module is used for converting the audio, video data of audio/video decoding module decoding into YP
BP
RSignal, CVBS signal and AUDIO signal, and pass through YP respectively
BP
RSignal output port, CVBS signal output port and the output of AUDIO signal output port.
6. a STB is controlled the method for economizing on electricity, and comprising:
The master chip of said STB the television set of confirming to be connected with said STB be through HDMI passage receiving video signals after, indicate the control signal of cut-out power supply circuits to power-supplying circuit output through its output port;
Said power-supplying circuit cuts off the power supply circuits of the analog audio-video drive circuit in the said STB according to this control signal.
7. method as claimed in claim 6 is characterized in that, the master chip of said STB confirming the television set that is connected with said STB be through HDMI passage receiving video signals after, also comprise:
Said master chip detects the switch setting of automatic energy-saving mode; And
The said control signal of cutting off power supply circuits to power-supplying circuit output indication through its output port is specially:
Said master chip cuts off the control signal of power supply circuits through its output port output indication after definite said automatic energy-saving mode is set to out.
8. method as claimed in claim 7 is characterized in that,, after definite said automatic energy-saving mode is set to out, also comprises at said master chip:
Said master chip stops the operation of the analog audio-video signal conversion module in the working procedure in this chip; Wherein, said analog audio-video signal conversion module is used for converting the audio, video data of audio/video decoding module decoding into YP
BP
RSignal, CVBS signal and AUDIO signal, and pass through YP respectively
BP
RSignal output port, CVBS signal output port and the output of AUDIO signal output port.
9. method as claimed in claim 8 is characterized in that, the master chip of said STB confirming the television set that is connected with said STB be through HDMI passage receiving video signals before, also comprise:
Behind said set-top-box opening, said master chip is connected the control signal of power supply circuits to power-supplying circuit output indication through its output port; And move said analog audio-video signal conversion module and HDMI signal conversion module; Wherein, said HDMI signal conversion module is used for the audio, video data conversion HDMI signal with said audio/video decoding module decoding, exports through the HDMI interface;
Said power-supplying circuit is connected the power supply circuits of the analog audio-video drive circuit in the said STB according to the control signal of said indication connection power supply circuits.
10. method as claimed in claim 9 is characterized in that, behind said set-top-box opening, also comprises:
The said automatic energy-saving mode of instruction that said master chip is imported based on the user is set to or closes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210299240.7A CN102833611B (en) | 2012-08-21 | 2012-08-21 | The method of Set Top Box and control economize on electricity thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210299240.7A CN102833611B (en) | 2012-08-21 | 2012-08-21 | The method of Set Top Box and control economize on electricity thereof |
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| CN102833611A true CN102833611A (en) | 2012-12-19 |
| CN102833611B CN102833611B (en) | 2015-09-16 |
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| CN201210299240.7A Active CN102833611B (en) | 2012-08-21 | 2012-08-21 | The method of Set Top Box and control economize on electricity thereof |
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