CN102946521A - Video and audio conversion system and video and audio conversion method - Google Patents
Video and audio conversion system and video and audio conversion method Download PDFInfo
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- CN102946521A CN102946521A CN2012104175627A CN201210417562A CN102946521A CN 102946521 A CN102946521 A CN 102946521A CN 2012104175627 A CN2012104175627 A CN 2012104175627A CN 201210417562 A CN201210417562 A CN 201210417562A CN 102946521 A CN102946521 A CN 102946521A
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- 230000000007 visual effect Effects 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
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Abstract
The invention discloses a video and audio conversion system and a video and audio conversion method. The method comprises the following steps: judging whether a video and audio converter is inserted into a video and audio receiving end or not, if yes, supplying power to a memory body by a control power supply unit; and judging whether the identification data stored in the memory body is identified or not, if yes, supplying power to the video and audio converter by the control power supply unit so as to allow the video and audio converter to convert input signals.
Description
Technical field
The invention relates to a kind of adapting system and conversion method, and particularly relevant for a kind of audio-visual converting system and audio-visual conversion method.
Background technology
Existing high-resolution multimedia interface (High-Definition Multimedia Interface, HDMI) device can't directly receive HDMI signal in addition, when the user has the input signal that receives all the other kinds, such as digital visual interface (Digital Vision Interface, DVI) and a Video Graphics Array (Video Graphics Array, VGA), need by adapter the input signal of all the other kinds to be converted to the HDMI signal, be resent in the HDMI device.Yet existing adapter all needs external power supply to use, and causes the inconvenience in the use.
This shows that above-mentioned existing mode obviously still exists inconvenience and defective, and haves much room for improvement.In order to address the above problem, association area is there's no one who doesn't or isn't sought the road that solves painstakingly, but does not develop yet for a long time suitable solution.
Summary of the invention
One purpose of content of the present invention is that a kind of audio-visual converting system and audio-visual conversion method are being provided, and all needs external power supply to use so as to improving adapter, and causes the problem of the inconvenience used.
For reaching above-mentioned purpose, a technical scheme of content of the present invention is about a kind of audio-visual conversion method.Aforementioned audio-visual conversion method comprises following steps:
Judge whether video and audio converter inserts audio-visual receiving terminal;
When video and audio converter inserted audio-visual receiving terminal, the control power-supply unit provided electric power to give memory body;
Judge whether the stored Identification Data of memory body can be by identification; And
If Identification Data can be by identification, the control power-supply unit provides electric power to give video and audio converter, by video and audio converter input signal is changed.
According to one embodiment of the invention, the aforementioned step of judging whether video and audio converter inserts audio-visual receiving terminal comprises:
Whether the state of judging the reservation pin position of audio-visual receiving terminal produces conversion.
According to another embodiment of the present invention, the step that aforementioned control power-supply unit provides electric power to give memory body comprises:
Control power-supply unit by switch to provide electric power to give memory body; And
Output switching signal gives switch, with opening switch, makes power-supply unit provide electric power to give memory body by switch.
According to yet another embodiment of the invention, audio-visual receiving terminal comprises high-resolution multimedia interface (High-Definition Multimedia Interface, HDMI) receiving terminal, digital visual interface (Digital Vision Interface, DVI) receiving terminal and Video Graphics Array (Video Graphics Array, VGA) receiving terminal wherein at least one.
For reaching above-mentioned purpose, another technical scheme of content of the present invention is about a kind of audio-visual converting system.Aforementioned audio-visual converting system comprises audio-visual receiving terminal and video and audio converter, and furthermore, audio-visual receiving terminal comprises power-supply unit and micro-control unit, and video and audio converter comprises memory body and switch.On structure, audio-visual receiving terminal is arranged in the electronic installation, and video and audio converter is to be arranged at audio-visual receiving terminal with plugging, furthermore, power-supply unit is electrically coupled to the power supply unit in the electronic installation, micro-control unit is electrically coupled to power-supply unit, and switch is electrically coupled to memory body.In operation, the memory used for storing Identification Data, when video and audio converter inserts audio-visual receiving terminal, micro-control unit receives detection signal, and by the micro-control unit controls power-supply unit to provide electric power to give memory body by switch, judge the stored Identification Data of memory body by micro-control unit again, and provide electric power to give video and audio converter according to judged result with the control power-supply unit.
According to another embodiment of the present invention, audio-visual receiving terminal also comprises reserves the pin position.When video and audio converter inserted audio-visual receiving terminal, the state of reserving the pin position produced conversion and the output detection signal.
According to one embodiment of the invention, audio-visual receiving terminal also comprises detecting unit.Whether detecting unit inserts audio-visual receiving terminal in order to detect video and audio converter, when detecting video and audio converter when inserting audio-visual receiving terminal, detecting unit output detection signal.
According to yet another embodiment of the invention, video and audio converter also comprises audio-visual converting unit.When power-supply unit provided electric power to give video and audio converter, audio-visual converting unit was in order to change input signal.
According to further embodiment of this invention, when video and audio converter inserted audio-visual receiving terminal, micro-control unit received detection signal, and gave switch by the micro-control unit output switching signal, with opening switch, made power-supply unit provide electric power to give memory body by switch.
The embodiment more in addition according to the present invention, audio-visual receiving terminal comprises high-resolution multimedia interface (High-Definition Multimedia Interface, HDMI) receiving terminal, digital visual interface (Digital Vision Interface, DVI) receiving terminal and Video Graphics Array (Video Graphics Array, VGA) receiving terminal wherein at least one.
Therefore, according to technology contents of the present invention, the embodiment of the invention all needs external power supply to use by a kind of audio-visual converting system and audio-visual conversion method are provided so as to improving adapter, and causes the problem of the inconvenience used.
In addition, by the dual judgment mechanism of audio-visual converting system and audio-visual conversion method, can guarantee further that video and audio converter is the device of the audio-visual converting system of the present invention or is the device of the audio-visual conversion method of the present invention institute wish control.
Description of drawings
For above and other purpose of the present invention, feature, advantage and embodiment can be become apparent, appended the description of the drawings is as follows:
Fig. 1 is the schematic diagram that illustrates according to a kind of audio-visual converting system of one embodiment of the invention;
Fig. 2 is the thin section circuit box schematic diagram that illustrates according to a kind of audio-visual converting system of Fig. 1 of the present invention;
Fig. 3 is the schematic flow sheet that illustrates according to a kind of audio-visual conversion method of yet another embodiment of the invention.
[main element symbol description]
100: audio-visual converting system
110: audio-visual receiving terminal
112: power-supply unit
114: micro-control unit
120: video and audio converter
122: switch
124: memory body
200: audio-visual converting system
210: audio-visual receiving terminal
211: audio-visual receiving terminal female end
212: power-supply unit
213: reserve the pin position
214: control unit
216: detecting unit
218: audio-visual receiving element
220: video and audio converter
221: the video and audio converter male end
222: switch
224: memory body
228: audio-visual converting unit
300: audio-visual conversion method
310 ~ 340: step
Embodiment
In order to make narration of the present invention more detailed and complete, can be with reference to appended accompanying drawing and the various embodiment of the following stated, identical number represents same or analogous element in the accompanying drawing.But the embodiment that provides limits the scope that the present invention is contained, and the description of structure running is non-in order to limit the order of its execution, any structure that is reconfigured by element, the device with impartial effect that produces is all the scope that the present invention is contained.
Wherein accompanying drawing is not mapped according to life size only for the purpose of description.On the other hand, well-known element and step are not described among the embodiment, to avoid that the present invention is caused unnecessary restriction.
In addition, about " coupling " used herein or " connection ", all can refer to two or a plurality of element mutually directly make entity or electrical contact, or mutually indirectly put into effect body or electrical contact, also can refer to two or a plurality of element mutual operation or action.
Fig. 1 is the schematic diagram that illustrates a kind of audio-visual converting system according to one embodiment of the invention.As shown in the figure, audio-visual converting system 100 comprises audio-visual receiving terminal 110 and video and audio converter 120.Furthermore, audio-visual receiving terminal 110 comprises power-supply unit 112 and micro-control unit 114, and video and audio converter 120 comprises switch 122 and memory body 124.
On structure, audio-visual receiving terminal 110 is arranged in the electronic installation, and video and audio converter 120 is to be arranged at audio-visual receiving terminal 110 with plugging, furthermore, power-supply unit 112 is electrically coupled to the power supply unit in the electronic installation, micro-control unit 114 is electrically coupled to power-supply unit 112, and switch 122 is electrically coupled to memory body 124.
When realization is of the present invention, audio-visual receiving terminal can be high-resolution multimedia interface (High-Definition Multimedia Interface, HDMI) receiving terminal, digital visual interface (Digital Vision Interface, DVI) receiving terminal or Video Graphics Array (Video Graphics Array, VGA) receiving terminal, electronic installation then is needs HDMI, DVI or VGA ... in the device of input source, right the present invention is not as limit.In addition, memory body 124 can be but is not limited to the electronics formula of erasing and can make carbon copies read-only memory (Electrically-Erasable Programmable Read-Only Memory, EEPROM).
In operation, memory body 124 is in order to store Identification Data, when video and audio converter 120 inserts audio-visual receiving terminal 110, micro-control unit 114 receives detection signal, and control power-supply units 112 to provide electric power to give memory body 124 by switch 122 by micro-control unit 114, judge the Identification Data that memory body 124 is stored by micro-control unit 114 again, and provide electric power to give video and audio converter 120 according to judged result with control power-supply unit 112.
Specifically, Identification Data can be but is not limited to plug and play identification code (Plug and Play Identification, PNPID), it is to be arranged in the memory body 124 of video and audio converter 120 corresponding to audio-visual receiving terminal 110, when video and audio converter 120 inserts audio-visual receiving terminal 110, judge that by micro-control unit 114 whether the stored Identification Data of memory body 124 is the Identification Data corresponding to audio-visual receiving terminal 110, in other words, but judge the whether identification of the stored Identification Data of memory body 124 by micro-control unit 114, and determine that video and audio converter 120 is a device of the audio-visual converting system 100 of the present invention.
The dual judgment mechanism of the audio-visual converting system 100 by the embodiment of the invention:
Judge whether video and audio converter 120 inserts audio-visual receiving terminal 110, and
But judge the whether identification of Identification Data of video and audio converter 120,
Can guarantee that video and audio converter 120 is a device of the audio-visual converting system 100 of the present invention, and provide power supply to give video and audio converter 120 by audio-visual receiving terminal 110, all need external power supply to use and can improve transducer, and cause the problem of the inconvenience used.
Fig. 2 is the thin section circuit box schematic diagram that illustrates a kind of audio-visual converting system according to Fig. 1 of the present invention.As shown in the figure, audio-visual receiving terminal 210 also comprises reservation pin position 213.When video and audio converter 220 inserted audio-visual receiving terminal 210, state generation conversion and the output detection signal of reserving pin position 213 gave micro-control unit 214, and at this moment, micro-control unit 214 as can be known video and audio converter 220 is inserted in the audio-visual receiving terminal 210 really.
When realization was of the present invention, video and audio converter 220 can comprise video and audio converter male end 221, and audio-visual receiving terminal 210 can comprise audio-visual receiving terminal female end 211, both are corresponding, and can insert audio-visual receiving terminal female end 211 by video and audio converter male end 221, at this moment, the state of reserving pin position 213 can produce conversion.Reserve pin position 213 and can be the empty pin position that is not used, and the conversion of above-mentioned state to can be but be not limited to by the high levle voltage transitions be low level voltage.
In an embodiment of the present invention, audio-visual receiving terminal 210 also comprises detecting unit 216.Whether detecting unit 216 can insert audio-visual receiving terminal 210 in order to detect video and audio converter 220, when detecting the audio-visual receiving terminal 210 of video and audio converter 220 insertions, detecting unit 216 output detection signals give micro-control unit 214, at this moment, micro-control unit 214 as can be known video and audio converter 220 really be inserted in the audio-visual receiving terminal 210.When realization was of the present invention, detecting unit 216 can directly be detected, and perhaps was electrically coupled to reserve pin position 213, reserved the state conversion of pin position 213 with detecting, and was not limited with shown in Figure 2.
In another embodiment of the present invention, video and audio converter 220 also comprises audio-visual converting unit 228.When power-supply unit 212 provides electric power to give video and audio converter 220, that is definite video and audio converter 120 is a device of the audio-visual converting system 100 of the present invention, and when having inserted audio-visual receiving terminal 210, audio-visual converting unit is delivered to audio-visual receiving element 218 in order to input signal is changed.
In yet another embodiment of the invention, when video and audio converter 220 inserts audio-visual receiving terminal 210, micro-control unit 214 receives detection signal, and give switch 222 by micro-control unit 214 output switching signals, with opening switch 222, make power-supply unit 212 provide electric power to give memory body 224 by switch 222.This is for judging the pre action of the Identification Data that memory body is stored, when video and audio converter 220 inserts audio-visual receiving terminal 210, power-supply unit 212 only provides electric power to give memory body 224 by switch 222, and be not integral body to video and audio converter 220, at this moment, memory body 224 can be read smoothly, but after the stored Identification Data identification of memory body to be determined, power-supply unit 212 just can provide electric power to give the integral body of video and audio converter 220.
Fig. 3 is the schematic flow sheet that illustrates a kind of audio-visual conversion method according to another embodiment of the present invention.As shown in the figure, audio-visual conversion method 300 comprises following steps:
Step 310: judge whether video and audio converter inserts audio-visual receiving terminal,
Step 320: when video and audio converter inserted audio-visual receiving terminal, the control power-supply unit provided electric power to give memory body,
Step 330: judge that the stored Identification Data of memory body whether can be by identification,
Step 340: if Identification Data can be by identification, the control power-supply unit provides electric power to give video and audio converter, by video and audio converter input signal is changed.
For the audio-visual conversion method 300 that makes the embodiment of the invention is easier to understand, cooperate in the lump Fig. 2 and Fig. 3 to explain orally illustratively at this.In step 310, when video and audio converter 220 inserts audio-visual receiving terminal 210, state generation conversion and the output detection signal of reserving pin position 213 give micro-control unit 214, and at this moment, control unit 214 judges that video and audio converters 220 are inserted in the audio-visual receiving terminal 210 really.In another embodiment, whether detecting unit 216 can insert audio-visual receiving terminal 210 in order to judge video and audio converter 220, when detecting the audio-visual receiving terminal 210 of video and audio converter 220 insertions, detecting unit 216 output detection signals give micro-control unit 214, at this moment, control unit 214 as can be known video and audio converter 220 really be inserted in the audio-visual receiving terminal 210.
In step 320, when video and audio converter 220 inserts audio-visual receiving terminal 210, can be by providing electric power to give memory body 124 for controller 114 control power-supply units 112.Please refer to step 330, can judge the Identification Data that memory body 124 is stored by micro-control unit 114.
Specifically, Identification Data can be but is not limited to the plug and play identification code, it is to be arranged in the memory body 124 of video and audio converter 120 corresponding to audio-visual receiving terminal 110, when video and audio converter 120 inserts audio-visual receiving terminal 110, judge that by micro-control unit 114 whether the stored Identification Data of memory body 124 is the Identification Data corresponding to audio-visual receiving terminal 110, in other words, but can judge the whether identification of the stored Identification Data of memory body 124 by micro-control unit 114, and determine the device that video and audio converter 120 is controlled for 300 wishs of the audio-visual conversion method of the present invention.
Please see step 340, if Identification Data can be by 114 identifications of micro-control unit, and when determining video and audio converter 120 for the device of 300 wishs controls of the audio-visual conversion method of the present invention, can provide electric power to give video and audio converter 120 with control power-supply unit 112 by micro-control unit 114.
The dual judgment mechanism of the audio-visual conversion method 300 by the embodiment of the invention:
Judge whether video and audio converter 120 inserts audio-visual receiving terminal 110, and
But judge the whether identification of Identification Data of video and audio converter 120,
Can guarantee that video and audio converter 120 is the device of 300 wish controls of the audio-visual conversion method of the present invention, and provide power supply to give video and audio converter 120 by audio-visual receiving terminal 110, all need external power supply to use and can improve transducer, and cause the problem of the inconvenience used.
In an embodiment of the present invention, judge that the step whether video and audio converter inserts audio-visual receiving terminal comprises:
Whether the state of judging the reservation pin position of audio-visual receiving terminal produces conversion.In this step, when video and audio converter 220 inserts audio-visual receiving terminal 210, state generation conversion and the output detection signal of reserving pin position 213 give micro-control unit 214, at this moment, can learn that video and audio converter 220 is inserted in the audio-visual receiving terminal 210 really by micro-control unit 214.
In another embodiment of the present invention, the step that the control power-supply unit provides electric power to give memory body comprises:
The control power-supply unit by switch providing electric power to give memory body,
Output switching signal gives switch, with opening switch, makes power-supply unit provide electric power to give memory body by switch.In this step, when video and audio converter 220 inserts audio-visual receiving terminal 210, can give switch 222 by micro-control unit 214 output switching signals, with opening switch 222, make power-supply unit 212 provide electric power to give memory body 224 by switch 222.This is for judging the preposition step of the Identification Data that memory body is stored, when video and audio converter 220 inserts audio-visual receiving terminal 210, power-supply unit 212 only provides electric power to give memory body 224 by switch 222, and be not integral body to video and audio converter 220, at this moment, memory body 224 can be read smoothly, but after the stored Identification Data identification of memory body to be determined, power-supply unit 212 just can provide electric power to give the integral body of video and audio converter 220.
In further embodiment of this invention, audio-visual receiving terminal comprises high-resolution multimedia interface (High-Definition Multimedia Interface, HDMI) receiving terminal, digital visual interface (Digital Vision Interface, DVI) receiving terminal and Video Graphics Array (Video Graphics Array, VGA) receiving terminal wherein at least one, right the present invention is not as limit.In addition, memory body 124 can be but is not limited to the electronics formula of erasing and can make carbon copies read-only memory (Electrically-Erasable Programmable Read-Only Memory, EEPROM).
Aforesaid audio-visual conversion method 300 all can be carried out by software, hardware and/or a piece of wood serving as a brake to halt a carriage body.For instance, if with execution speed and accuracy for primarily considering, it is main then basically can selecting hardware and a piece of wood serving as a brake to halt a carriage body; If for primarily considering, it is main then basically can selecting software with design flexibility; Perhaps, can adopt simultaneously software, hardware and a piece of wood serving as a brake to halt a carriage body work compound.Should be appreciated that, more than for these examples not so-called which is better and which is worse minute, also be not to limit the present invention, those who are familiar with this art are when looking at that time elasticity of demand design.
Moreover, having in the affiliated technical field and usually know the knowledgeable when understanding, each step in the audio-visual conversion method 300 is named according to the function of its execution, only is in order to allow the technology of this case more become apparent, and is not to limit these steps.Each step is integrated into same step or is split into a plurality of steps, perhaps arbitrary step is changed in another step and carry out, all still belonged to embodiments of the present invention.
By the invention described above execution mode as can be known, use the present invention and have following advantages.The embodiment of the invention all needs external power supply to use by a kind of audio-visual converting system and audio-visual conversion method are provided so as to improving adapter, and causes the problem of the inconvenience used.
In addition, by the dual judgment mechanism of audio-visual converting system and audio-visual conversion method, can guarantee further that video and audio converter is the device of the audio-visual converting system of the present invention or is the device of the audio-visual conversion method of the present invention institute wish control.
Although the present invention discloses as above with execution mode; so it is not to limit the present invention; anyly be familiar with this skill person; without departing from the spirit and scope of the present invention; when can being used for a variety of modifications and variations, so protection scope of the present invention is as the criterion when looking the scope that appending claims defines.
Claims (10)
1. an audio-visual conversion method is characterized in that, comprises:
Judge whether a video and audio converter inserts an audio-visual receiving terminal;
When this video and audio converter inserted this audio-visual receiving terminal, controlling a power-supply unit provided electric power to give a memory body;
Judge whether the stored Identification Data of this memory body can be by identification; And
If this Identification Data can be by identification, controlling this power-supply unit provides electric power to give this video and audio converter, by this video and audio converter one input signal is changed.
2. audio-visual conversion method according to claim 1 is characterized in that, judges that the step whether this video and audio converter inserts this audio-visual receiving terminal comprises:
Whether a state of reserving the pin position of judging this audio-visual receiving terminal produces conversion.
3. audio-visual conversion method according to claim 1 is characterized in that, the step that controlling this power-supply unit provides electric power to give this memory body comprises:
Control this power-supply unit by a switch to provide electric power to give this memory body; And
Export a switching signal and give this switch, to open this switch, make this power-supply unit provide electric power to give this memory body by this switch.
4. audio-visual conversion method according to claim 1 is characterized in that, this audio-visual receiving terminal comprise a high-resolution multimedia interface iSCSI receiving end, a digital visual interface receiving terminal and a Video Graphics Array receiving terminal wherein at least one.
5. an audio-visual converting system is characterized in that, comprises:
One audio-visual receiving terminal is arranged in the electronic installation, comprises:
One power-supply unit is electrically coupled to the power supply unit in this electronic installation;
One micro-control unit is electrically coupled to this power-supply unit; And
One video and audio converter can be arranged at this audio-visual receiving terminal with plugging, comprises:
One memory body is in order to store an Identification Data; And
One switch is electrically coupled to this memory body, the electric power that provides in order to receive this power-supply unit,
Wherein when this video and audio converter inserts this audio-visual receiving terminal, this micro-control unit receives a detection signal, and by this power-supply unit of this micro-control unit controls to provide electric power to give this memory body by this switch, judge this Identification Data that this memory body is stored by this micro-control unit again, and provide electric power to give this video and audio converter according to this judged result to control this power-supply unit.
6. audio-visual converting system according to claim 5 is characterized in that, this audio-visual receiving terminal also comprises:
Whether one detecting unit inserts this audio-visual receiving terminal in order to detect this video and audio converter, and when detecting this this audio-visual receiving terminal of video and audio converter insertion, this detecting unit is exported this detection signal.
7. audio-visual converting system according to claim 5 is characterized in that, this audio-visual receiving terminal also comprises:
One reserves the pin position, and when this video and audio converter inserted this audio-visual receiving terminal, the state of this reservation pin position produced conversion and exports this detection signal.
8. audio-visual converting system according to claim 5 is characterized in that, this video and audio converter also comprises:
One audio-visual converting unit, when this power-supply unit provided electric power to give this video and audio converter, this audio-visual converting unit was in order to change an input signal.
9. audio-visual converting system according to claim 5, it is characterized in that, when this video and audio converter inserts this audio-visual receiving terminal, this micro-control unit receives this detection signal, give this switch and export a switching signal by this micro-control unit, to open this switch, mat makes this power-supply unit provide electric power to give this memory body by this switch.
10. audio-visual converting system according to claim 5 is characterized in that, this audio-visual receiving terminal comprise a high-resolution multimedia interface iSCSI receiving end, a digital visual interface receiving terminal and a Video Graphics Array receiving terminal wherein at least one.
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| CN2012104175627A CN102946521A (en) | 2012-10-26 | 2012-10-26 | Video and audio conversion system and video and audio conversion method |
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| CN2012104175627A CN102946521A (en) | 2012-10-26 | 2012-10-26 | Video and audio conversion system and video and audio conversion method |
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Cited By (1)
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| CN106357992A (en) * | 2016-08-26 | 2017-01-25 | 福建星网视易信息系统有限公司 | Audio and video centralized control method and system |
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| US20090180759A1 (en) * | 2008-01-16 | 2009-07-16 | Kazuhiro Fukuda | Recording apparatus |
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Application publication date: 20130227 |