CN101072294B - Standby mode low-power-consumption flow media automatic play device - Google Patents
Standby mode low-power-consumption flow media automatic play device Download PDFInfo
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- CN101072294B CN101072294B CN2006100606996A CN200610060699A CN101072294B CN 101072294 B CN101072294 B CN 101072294B CN 2006100606996 A CN2006100606996 A CN 2006100606996A CN 200610060699 A CN200610060699 A CN 200610060699A CN 101072294 B CN101072294 B CN 101072294B
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Abstract
The automatic play back device includes sensing circuit, circuit for playing stream media, and MCU. In state of stand by, the invention can sense external stream media device, and outputs audio signal only for audio/video file carried when playing operation is carried out automatically under low power consumption mode. After pulling out external stream media device, the invention comes back to previous original stand by state automatically. Thus, the invention reduces power consumption greatly, and saves electrical energy.
Description
[technical field]
The present invention relates to the broadcast of flow medium digital audio frequency and video, particularly relate to Streaming Media external equipment Auto-Sensing, and its audio-video document that is loaded with is carried out playing the back automatically continuously only audio signal is handled and exported under standby mode, and recover the processing unit of original holding state automatically after taking out the Streaming Media external equipment, thereby reach the purpose of saving electric energy.
[background technology]
Television devices in the past only possesses the function that receives analog signal, CVBS signal for example, S terminal signals etc.The present television set signal that can receive very many just, input from component signal YUV, digital video signal DVI, the digital video audio signal HDMI of simulation to various stream media equipments, as USB disk, portable hard drive, various storage cards etc., be with rapid changepl. never-ending changes and improvements.
Be loaded with the digital audio/video file in the stream media equipment, for example WMV, MPG file also have digital audio file, and for example MP3, wav file also have data file in addition in the Streaming Media.What paid close attention to here is multimedia digital audio frequency and video and the audio file that is loaded with in the stream media equipment.During existing TV was handled, as an independent information source, watching was to be manually switched to this information source under the start situation the interface of Streaming Media.
In existing technical finesse, if the user only wants to listen to the music, also must turn on television set earlier under holding state, switch to corresponding information source, select then to play.Brought two problems like this, one is complicated operating process; Another is that television set comprises that all circuit of screen and display device all need work, and Overall Power Consumption is very high.
The patent No. is 00205760.3, and open day is on December 6th, 2000, and name is called have been mentioned a kind of externally the color television set audio amplifier in the utility model patent of " digital sound television equipment ", listen to the method for appreciation sound equipment program separately.It has closed scanning system, save the energy, has effectively prolonged the life-span of picture tube, sweep test.This method is at former modeling scheme, and can only carry out continuous button earlier and handle under the situation of television startup, enters the sound equipment pattern then, realizes not seeing picture, the independent auditory function of a listening.The system that the method that this patent is mentioned can't be implemented in after intelligence detecting, startup and the hot plug of the external multimedia equipment under the holding state recovers the function of holding state automatically, and only is directed to the analogue audio frequency input of the CRT TV of row-field scanning.
Therefore, prior art lacks effective Real time identification for stream media equipment to be play, and reduces the processing unit of power consumption simultaneously.
[summary of the invention]
Based on this, the purpose of this invention is to provide a kind of flow media automatic play device of standby mode low-power-consumption, this device is provided with simple, with low cost, can reduce the power consumption of playing audio/video under the holding state effectively.
For achieving the above object, of the present invention being achieved as follows:
A kind of flow media automatic play device of standby mode low-power-consumption, it includes:
Circuit for detecting, this circuit are under the television set ideal case, and whether detecting Streaming Media interface has external stream media equipment input.The variation of the pin level that the MCU detecting is attached thereto, thus judge the operation whether the Streaming Media interface has the equipment input or take out;
The streaming media playing circuit comprises Streaming Media treatment circuit, sound effect circuit, power amplifier and horn circuit; These three circuit connect successively, and the interface of the external Streaming Media of Streaming Media treatment circuit wherein is in order to the audio signal of incoming stream medium;
MCU, in order to detecting the input signal of circuit for detecting, and control flows media play circuit, sound effect circuit, power amplifier and horn circuit carry out corresponding operation, reaches the purpose of audio plays.
The streaming media playing circuit is responsible for the multimedia audio-video and the audio file that are loaded with in the stream media equipment are play automatically according to existing technology, output audio signal and vision signal, but circuit with the Video processing relevant portion, as the unlatching that do not powered on of the circuit of parts such as video decode, Video processing, image demonstrations, and shield as LCD/PDP/CRT and to wait other display device still to be in holding state.In playing process, when MCU detects the variation of the pin level that is attached thereto by circuit, judge when external equipment is taken out, close power supply with the Audio Processing relevant portion, as comprise streaming media playing circuit, sound effect processing circuit, power amplifier and horn circuit, to recover original holding state.By above technical measures to reach the purpose of energy savings to greatest extent.
Specifically, this device is applied to whole set of television sound intermediate frequency video processing part MCU, various input, video decode circuit, picture treatment circuit, display part, Streaming Media treatment circuit, sound effect processing circuit, power amplification circuit, loudspeaker, circuit for detecting etc.Wherein Streaming Media treatment circuit, sound effect processing circuit, power amplification circuit, circuit for detecting and MCU constitute this device, comprise Streaming Media treatment circuit, sound effect circuit, power amplifier and horn circuit; These three circuit connect successively, and the interface of the external Streaming Media of Streaming Media treatment circuit wherein is in order to the audio signal of incoming stream medium; And carry out the broadcast of audio frequency by loudspeaker, and external interface also is connected with circuit for detecting simultaneously, and the signal by whether circuit for detecting provides Streaming Media to connect to MCU triggers the Streaming Media control model.
For reducing stand-by power consumption, two MCU generally all can be arranged in the above-mentioned whole set of television scheme, one is main MCU, be used for the work of aspects such as video decode, Video processing, another one is little MCU, also is auxiliary MCU, does the processing of IR signal processing, power management and detection signal;
Circuit for detecting provides the high-low level to a variation of MCU, is ground connection as the shell of USB device, when not having stream media equipment to insert on the interface because the cause of pull-up resistor is a high level, the triode conducting, what offer MCU so is low level signal; Because the interface of device housings causes input low level, triode ends when having signal to insert on the interface, and the signal that offers MCU becomes high level signal by low level.
What the present invention proposed is under holding state, sense external stream media device, when its audio-video document that is loaded with is play under low-power consumption mode automatically, the processing of output audio signal, and take out the technology of recovering previous original holding state behind the Streaming Media external equipment automatically, can significantly reduce power consumption like this, save electric energy.
After the technical scheme above adopting, when input is digital multimedia audio frequency and video, audio signal, do not need to open the power supply of Video processing, image demonstration (treatment circuit and display screen drive) part.For example for the main flow of existing market 32 " the LCD LCD TV, the power consumption of complete machine is 150W, wherein Ping power consumption just is about 100W, as adopts this invention treatment technology, listens song 1 hour electrical energy saving 100W at least; The CRT TV can be opened a row treatment circuit especially, energy savings and minimizing electromagnetic radiation; The rear-projection TV of DLP can not use circuit for lamp, prolongs the life-span of lamp.
Under holding state, need not steps such as start, switching information source, selection broadcast, simplified user's operation greatly.
[description of drawings]
The invention will be further described in conjunction with the embodiments with reference to the accompanying drawings:
Fig. 1 is the structured flowchart that the audio frequency and video of the invention process on TV handled;
Fig. 2 is the circuit for detecting of embodiment of the present invention;
The flow chart that Fig. 3 plays automatically for Streaming Media among the present invention.
[embodiment]
Of the present invention being achieved as follows:
At first be circuit for detecting, this circuit is under the television set ideal case, and whether detecting Streaming Media interface has external stream media equipment input.The variation of the pin level that the MCU detecting is attached thereto, thus judge the operation whether the Streaming Media interface has the equipment input or take out.
Next is the power initiation of Streaming Media module, and only handles the function of voice output part behind the multimedia audio-video that is loaded with of automatic playing stream media equipment and the audio file.MCU opens the power supply of appropriate section after detecting and feeding back the level signal that external equipment is arranged that by circuit immediately, comprises streaming media playing circuit, sound effect circuit, power amplifier and horn circuit.The streaming media playing circuit is responsible for the multimedia audio-video and the audio file that are loaded with in the stream media equipment are play automatically according to existing technology, output audio signal and vision signal, but circuit with the Video processing relevant portion, as the unlatching that do not powered on of the circuit of parts such as video decode, Video processing, image demonstrations, and shield as LCD/PDP/CRT and to wait other display device still to be in holding state.In playing process, when MCU detects the variation of the pin level that is attached thereto by circuit, judge when external equipment is taken out, close power supply with the Audio Processing relevant portion, as comprise streaming media playing circuit, sound effect processing circuit, power amplifier and horn circuit, to recover original holding state.By above technical measures to reach the purpose of energy savings to greatest extent.
In the process of playing, the user can regulate volume, audio pattern etc. by quick button.
Fig. 1 is the complete machine block diagram of embodiment of the present invention.As shown in the figure, MCU, various input, video decode circuit, picture treatment circuit, display part, Streaming Media treatment circuit, sound effect processing circuit, power amplification circuit, loudspeaker, circuit for detecting etc. are arranged in the system.For reducing stand-by power consumption, two MCU generally all can be arranged in the prior complete machine scheme, one is main MCU, be used for the work of aspects such as video decode, Video processing, another one is little MCU, also is auxiliary MCU, does the processing of IR signal processing, power management and detection signal; Do not distinguish in the scheme that yet has, use a MCU.
This legend is specifically at the existing main flow design that two MCU are arranged.What transmit after the multimedia audio-video file process Streaming Media processing circuit processes that is loaded with in the external stream media equipment of USB interface is the Streaming Media signal, comprising video and audio signal, video section is not processed because circuit does not have unlatching, audio-frequency unit then needs to carry out work such as audio processing, exports to loudspeaker through power amplification then.In this block diagram, the auxiliary MCU of the power supply of various piece controls separately, and under energy saver mode, video frequency program circuit, video processing circuits, display part do not need work, and main MCU does not need work yet.
Fig. 2 is the circuit for detecting of embodiment of the present invention.Circuit for detecting provides the high-low level to a variation of MCU, is ground connection as the shell of USB device, when not having stream media equipment to insert on the interface because the cause of pull-up resistor is a high level, the triode conducting, what offer MCU so is low level signal; Because the interface of device housings causes input low level, triode ends when having signal to insert on the interface, and the signal that offers MCU becomes high level signal by low level.The plug state of external equipment is judged in the variation of the pin level that MCU is attached thereto according to detecting.This circuit for detecting is a fairly simple circuit signal, will consider other factorses such as interference when actual design is used.
Fig. 3 is the flow chart of power management when automatically playing among the present invention.Circuit for detecting is being worked always, when MCU detect that circuit feeds back to the signal level that external equipment inserts is arranged after, the power supply of MCU demand working Streaming Media treatment circuit and Audio Processing and output relevant portion circuit and module.The display part circuit is work not, and user at this moment adjusts and will be undertaken by direct button.Such as the user by volume+, it is big that volume becomes, by volume-, volume diminishes, though can't see OSD, because of being to acoustic processing, can hear adjusted effect.Same reason, the adjustment of audio, selection of song or the like can realize.
Claims (4)
1. the flow media automatic play device of a standby mode low-power-consumption is characterized in that this device includes:
Circuit for detecting, this circuit are under the television set ideal case, and whether detecting Streaming Media interface has external stream media equipment input;
The streaming media playing circuit, the external Streaming Media interface of streaming media playing circuit, in order to the audio signal of incoming stream medium, and to the loudspeaker output audio signal;
MCU, in order to the input signal of detection circuit for detecting, and control flows media play circuit is carried out corresponding operation;
The variation of the pin level that the MCU detecting is attached thereto, thereby judge the operation whether the Streaming Media interface has the equipment input or take out, after MCU detects and feeds back the level signal that external equipment is arranged that by circuit, open the power supply of appropriate section immediately, the streaming media playing circuit is responsible for the multimedia audio-video and the audio file that are loaded with in the stream media equipment are play automatically, output audio signal and vision signal, but with the unlatching that do not powered on of the circuit of Video processing relevant portion; When external equipment is taken out, close the power supply with the Audio Processing relevant portion, recover original holding state.
2. the flow media automatic play device of standby mode low-power-consumption as claimed in claim 1 is characterized in that there are MCU, various input circuit, video decode circuit, picture treatment circuit, display part, Streaming Media treatment circuit, sound effect processing circuit, power amplification circuit, loudspeaker, circuit for detecting in the audio frequency and video processing section that this device is applied in the television set; Wherein Streaming Media treatment circuit, sound effect processing circuit, power amplification circuit, circuit for detecting and MCU constitute this device, the external interface of TV connects Streaming Media treatment circuit, sound effect processing circuit, power amplification circuit successively, these three circuit connect successively, carry out the broadcast of audio frequency again by loudspeaker, external interface also is connected with circuit for detecting simultaneously, signal by whether circuit for detecting provides Streaming Media to connect to MCU triggers the Streaming Media control model.
3. the flow media automatic play device of standby mode low-power-consumption as claimed in claim 2, it is characterized in that this above-mentioned device has two MCU, one is main MCU, be used for the work of video decode, Video processing aspect, another one is little MCU, also be auxiliary MCU, do the processing of IR signal processing, power management and detection signal.
4. the flow media automatic play device of standby mode low-power-consumption as claimed in claim 1, it is characterized in that circuit for detecting provides the high-low level to a variation of MCU, when having signal to insert on the Streaming Media interface, cause input low level, triode ends, and the signal that offers MCU becomes high level signal by low level.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006100606996A CN101072294B (en) | 2006-05-12 | 2006-05-12 | Standby mode low-power-consumption flow media automatic play device |
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| CN2006100606996A CN101072294B (en) | 2006-05-12 | 2006-05-12 | Standby mode low-power-consumption flow media automatic play device |
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| CN101072294A CN101072294A (en) | 2007-11-14 |
| CN101072294B true CN101072294B (en) | 2010-06-09 |
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| CN2006100606996A Active CN101072294B (en) | 2006-05-12 | 2006-05-12 | Standby mode low-power-consumption flow media automatic play device |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102279306A (en) * | 2011-06-20 | 2011-12-14 | 金天 | Signal-driving alternated current/direct current digital ampere meter with low power consumption |
| CN104661016A (en) * | 2013-11-20 | 2015-05-27 | 扬智科技股份有限公司 | Detecting method and electronic device |
| CN105578266B (en) * | 2015-12-29 | 2018-11-27 | 北京奇艺世纪科技有限公司 | Audio and video playing method and multimedia player |
| CN108495175B (en) * | 2018-03-12 | 2020-10-30 | 海信视像科技股份有限公司 | Method and device for controlling communication message when smart television interconnects external equipment |
| CN108566589A (en) * | 2018-04-26 | 2018-09-21 | 京东方科技集团股份有限公司 | Control method, display device, electronic equipment and the storage medium of display device |
| CN108551588A (en) * | 2018-05-17 | 2018-09-18 | 四川长虹电器股份有限公司 | A kind of device and method that television standby realizes intelligent sound box |
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| CN2481092Y (en) * | 2000-12-11 | 2002-03-06 | 康佳集团股份有限公司 | Television set with extended accompanying sound listening function |
| CN1358022A (en) * | 2002-01-15 | 2002-07-10 | Tcl王牌电子(深圳)有限公司 | Automatic control method of testing and outputting audio and video signal |
| CN2682750Y (en) * | 2004-01-02 | 2005-03-02 | 深圳创维－Rgb电子有限公司 | Television set having function of independent accompanying sound reception |
| KR20050056639A (en) * | 2003-12-10 | 2005-06-16 | 주식회사 대우일렉트로닉스 | Device for controlling screen power in the power-saving television |
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2006
- 2006-05-12 CN CN2006100606996A patent/CN101072294B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2481092Y (en) * | 2000-12-11 | 2002-03-06 | 康佳集团股份有限公司 | Television set with extended accompanying sound listening function |
| CN1358022A (en) * | 2002-01-15 | 2002-07-10 | Tcl王牌电子(深圳)有限公司 | Automatic control method of testing and outputting audio and video signal |
| KR20050056639A (en) * | 2003-12-10 | 2005-06-16 | 주식회사 대우일렉트로닉스 | Device for controlling screen power in the power-saving television |
| CN2682750Y (en) * | 2004-01-02 | 2005-03-02 | 深圳创维－Rgb电子有限公司 | Television set having function of independent accompanying sound reception |
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