CN101150883A - Audio output device of display - Google Patents
Audio output device of display Download PDFInfo
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- CN101150883A CN101150883A CNA2006100963457A CN200610096345A CN101150883A CN 101150883 A CN101150883 A CN 101150883A CN A2006100963457 A CNA2006100963457 A CN A2006100963457A CN 200610096345 A CN200610096345 A CN 200610096345A CN 101150883 A CN101150883 A CN 101150883A
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Abstract
The invention relates to a display audio output device, the device comprises following parts: an audio decoder which decodes the audio signal processed by the audio card of the computer; a channel separating device which separates the audio signal processed by the audio decoder; an amplifier which does the amplitude treatment through the audio signals input by the channel separating device; a speaker which ouputs the signals processed by the amplitude treatment through the amplifier; a testing device which judges through the display terminal connected to the external speaker whether or not; a controling device which controls the channel separating device based on the output signal of the testing device. The audio output device of the display separates the doubles channels audio signals into four channels or 5.1 channels to output.
Description
Technical field
The present invention relates to a kind of audio output device of display.Thereby be particularly related to a kind of display audio output device of voice output effect that improves by external loudspeaker is connected with the lead-out terminal of the display of boombox.
Background technology
Now, the implementation space utilizes maximized scheme thereby the researcher has proposed a kind of flexible utilization space, and that is exactly that the loud speaker of the audio signal in the output computer and display are constituted an integral body, and present this product is just extensively sold on market.
Under the condition of prior art, display generally is to be connected with the loudspeaker terminal that is positioned at the main frame back with the loud speaker that sells separately in addition, thereby audio signal is exported to the outside.But,, just should from the side loud speaker be connected with display from the angle in flexible utilization space.
Particularly along with the extensive of LCD display popularized, people more and more pay attention to the effective utilization to the space.Now, the research staff adopts airflow design with display usually, and itself and loud speaker are constituted an integral body.This product is subjected to user's extensive favorable comment.
Fig. 1 is the schematic diagram to the computer installation of prior art.
Comprise display 30 and main frame 34 two large divisions at the computer installation shown in Fig. 1.Above-mentioned main frame 34 is provided with the sound card 31 that can handle audio signal.
In addition, above-mentioned main frame 34 and display 30 interconnect by cable 32, so just can will outwards export by vision signal and audio signal after the microprocessor processes of above-mentioned main frame 34 inside.
The audio signal of loud speaker 33 outputs by aforementioned display device 30 is generally the signal of 2 channels.
Fig. 2 is the schematic diagram of the computer installation output audio signal of prior art.
As shown in Figure 2,, after carrying out decoding processing, carry out amplification through amplifier 21 again and handle through the audio signal after sound card 31 processing of aforementioned calculation machine host through audio decoder 20.Then, export to the outside by loud speaker 1 and loud speaker 2 23 again.
For above-mentioned loud speaker 1 and loud speaker 2 23, they can outwards be exported the audio signal of 2 channel sound card modes of prior art.
As mentioned above, for the computer installation of prior art, as shown in Figure 1, because the loud speaker 33 that is installed on the display 30 is merely able to the audio signal of 2 channels is outwards exported.Therefore, for the user of heavier video/audio signal, it just can not satisfy the needs of user to audio signal output.
Particularly, play mp3 file and listoning music by computer recently, or watch the situation of film and TV reception more and more by computer, this just presses for the output effect of further raising audio signal.
Summary of the invention
The present invention researches and develops for addressing the above problem.The objective of the invention is to provide a kind of audio output device of display, thereby make the audio output device of the display of computer have the function that to export 4 channel audio signals or 5.1 channel audio signals for the user.
Specifically, the objective of the invention is to external loudspeaker is connected with the display of boombox, thereby just can further improve the output effect of audio signal for the user provides a kind of audio signal output device with above-mentioned functions.
To achieve these goals, the audio output device of display of the present invention is made of following components: the audio decoder that the audio signal after will handling through the sound card of computer is decoded; Carry out the channel separation device that the audio signal after the decoding processing is separated with above-mentioned through audio decoder; To carry out the amplifier that amplification is handled by the audio signal of above-mentioned channel separation device input; Carry out the loud speaker that the signal after amplification is handled is exported with above-mentioned through amplifier; The checkout gear that the situation whether terminal by display is connected with external loudspeaker is judged; The control device of above-mentioned channel separation device being controlled according to the signal of above-mentioned detection device output.
Above-mentioned channel separation device is separated into the audio signal of 2 channels imported the audio signal of 4 channels.
Above-mentioned channel separation device is separated into the audio signal of 2 channels imported the audio signal of 5.1 channels.
Above-mentioned channel separation device uses the dolby pro logic decoder.
Above-mentioned channel separation device uses dolby pro logic II decoder.
In addition, the audio output device of display of the present invention comprises: built-in 2 loud speakers in the display; Aforementioned display device is provided with the splicing ear that can be connected with external loudspeaker; The checkout gear that the said external loud speaker and the situation that is connected of above-mentioned splicing ear are detected; The audio signal of 2 channels of input is separated into the channel separation device of the audio signal of 4 channels or 5.1 channels.
As mentioned above, the loud speaker that the audio output device of display of the present invention can be provided with interpolation is connected with the splicing ear on the display, like this, by comprising that the loud speaker that is built in the loud speaker in the display just can export the audio signal of 4 channels or 5.1 channels.This is the good result that audio output device had of display of the present invention.
Description of drawings
Fig. 1 is the schematic diagram of the computer installation of prior art.
Fig. 2 is the schematic diagram of the computer installation output audio signal of prior art.
Fig. 3 is the schematic diagram of the audio output device of display of the present invention.
Fig. 4 is the schematic diagram of another one embodiment of the output device of display of the present invention.
Reference numeral
20: audio decoder 21: amplifier
22: loud speaker 1: loud speaker two
30: display 31: sound card
32: cable 33: loud speaker
34: main body 40: the channel separation device
41: amplifier 1: loud speaker one
43: loud speaker 2 44: amplifier two
45: loud speaker 3 46: loud speaker four
47: checkout gear 48: microcomputer
49: loud speaker 5 50: woofer
Embodiment
Below, the desirable embodiment to the audio output device of display of the present invention is described in more details with reference to the accompanying drawings.
Fig. 3 is the schematic diagram of the audio output device of display of the present invention.
As shown in Figure 3, the audio output device of display of the present invention comprises following components: audio decoder 20; Channel separation device 40; Amplifier 40,44; Loud speaker 42,43,45,46; Checkout gear 47; Microcomputer 48.
In addition, the main frame of aforementioned calculation machine is provided with sound card 31, and it can be handled audio signal.Above-mentioned main frame is connected by cable with display.
For above-mentioned audio decoder 20, it can carry out decoding processing with the audio signal after handling through above-mentioned sound card 31.
In addition, for above-mentioned channel separation device 40, it can be according to the number of the loud speaker that is connected with aforementioned display device and will separate according to 2 channels, 4 channels, 5.1 channels through the signal that above-mentioned audio decoder 20 carries out after the decoding processing.
As shown in the figure, above-mentioned channel separation device 40 is provided with 4 loud speakers 42,43,45,46.Therefore, it just can separate audio signal according to 4 channels.
For the audio signal after handling through above-mentioned channel separation device 40, it passes through amplifier 41,44 respectively and carries out outwards exporting by loud speaker 42,43,45,46 after the amplification processing again.
As shown in the figure, for above-mentioned loud speaker 1 and loud speaker 2 43, they all are the loud speakers that is built in the display.And for above-mentioned loud speaker 3 45 and loud speaker 4 46, they all are the external loudspeakers that is connected by the terminal that is positioned on the display.
In addition, the input terminal of said external loud speaker 3 45 and loud speaker 4 46 is provided with checkout gear 47.
For above-mentioned detection device 47, whether it can detect with the situation that the splicing ear of the loud speaker of display is connected loud speaker 45,46, then detected information is transmitted to microcomputer 48.
For above-mentioned microcomputer 48, it can be controlled the ruuning situation of above-mentioned channel separation device 40 according to the situation of the detection signal of above-mentioned detection device 47 input.
For above-mentioned channel separation device 40, it can with carry out according to 2 channels after the decoding processing audio signal again according to the left and right signal of preposition channel with the center, separate around 4 channels such as (monophone sounds).
Generally speaking, for the audio signal after handling through above-mentioned sound card 31, can be with its left and right signal and center according to preposition channel, encode around the sound channel signal of 4 channels such as (monophone sounds), then in being the signal of 2 channels its mixing (Mixed Down).Owing to adopted aforesaid way,, then just can be separated into the audio signal of 4 channels if therefore will carry out decoding processing through the signal of 2 channels after the encoding process.
More satisfactory situation is that for above-mentioned channel separation device 40, it can use dolby pro logic decoder (Dolby Prologic Decoder).
As mentioned above, the audio output device that has the display of above-mentioned formation for the present invention, it can carry out decoding processing through audio decoder again with the audio signal after handling through sound card 31, then, above-mentioned channel separation device 40 just can be according to the quantity (comprising boombox) of the loud speaker that is connected with display and above-mentioned audio signal is separated into the audio signal of 2 channels, 4 channels.
Here, for above-mentioned channel separation device 40, it can be according to loud speaker 42,43,45, the control signal that the checkout gear 47 that 46 connection situation detects is exported, and by microcomputer 48 situation of whether carrying out channel separation is judged, handle accordingly then.
Fig. 4 is the schematic diagram of another one embodiment of the output device of display of the present invention.
As shown in Figure 4, audio output device can carry out decoding processing through audio decoder 20 again with the audio signal after handling through above-mentioned sound card 31, then, by channel separation device 40 audio signal of 2 channels is separated into the audio signal of 5.1 channels again.
For above-mentioned detection device 47, the loud speaker that it can connect the terminal by display detects, and then, more detected information is transmitted to microcomputer 48.Then, be the audio signal of 5.1 channels by above-mentioned channel separation device 40 with the Signal Separation of 2 channels again, thereby just it can have been exported.
More satisfactory situation is that the audio output device of display of the present invention also has following feature: promptly for above-mentioned channel separation device 40, it also can use dolby pro logic II decoder.
Here, for above-mentioned amplifier 1, it can be handled carrying out amplification by the audio signal that is built in loud speaker 1 in the display and loud speaker 2 43 outputs.And for above-mentioned amplifier 2 44, it then can be handled carrying out amplification by the audio signal of loud speaker 3 45, loud speaker 4 46, loud speaker 5 49 and woofer 50 outputs.
As mentioned above, the audio output device of display of the present invention can be separated into the audio signal of 2 channels of prior art the audio signal of 4 channels or 5.1 channels, then it is exported.Thereby just can further improve the output effect of audio signal.
By above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.
Therefore, the technical scope of this invention is not limited to the content on the specification, must determine its technical scope according to interest field.
Claims (6)
1. the audio output device of a display is characterized in that, is made of following components:
The audio decoder that audio signal after will handling through the sound card of computer is decoded;
Carry out the channel separation device that the audio signal after the decoding processing is separated with above-mentioned through audio decoder;
To carry out the amplifier that amplification is handled by the audio signal of above-mentioned channel separation device input;
Carry out the loud speaker that the signal after amplification is handled is exported with above-mentioned through amplifier;
The checkout gear that the situation whether terminal by display is connected with external loudspeaker is judged;
The control device of above-mentioned channel separation device being controlled according to the signal of above-mentioned detection device output.
2. the audio output device of display as claimed in claim 1 is characterized in that, above-mentioned channel separation device can be separated into the audio signal of 2 channels imported the audio signal of 4 channels.
3. the audio output device of display as claimed in claim 1 is characterized in that, above-mentioned channel separation device can be separated into the audio signal of 2 channels imported the audio signal of 5.1 channels.
4. the audio output device of display as claimed in claim 1 is characterized in that, above-mentioned channel separation device uses the dolby pro logic decoder.
5. the audio output device of display as claimed in claim 1 is characterized in that, above-mentioned channel separation device uses dolby pro logic II decoder.
6. the audio output device of a display comprises 2 built-in in display loud speakers, it is characterized in that, also comprises:
Aforementioned display device is provided with the splicing ear that can be connected with external loudspeaker;
The checkout gear that the said external loud speaker and the situation that is connected of above-mentioned splicing ear are detected;
The audio signal of 2 channels of input is separated into the channel separation device of the audio signal of 4 channels or 5.1 channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100963457A CN101150883A (en) | 2006-09-20 | 2006-09-20 | Audio output device of display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100963457A CN101150883A (en) | 2006-09-20 | 2006-09-20 | Audio output device of display |
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| Publication Number | Publication Date |
|---|---|
| CN101150883A true CN101150883A (en) | 2008-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100963457A Pending CN101150883A (en) | 2006-09-20 | 2006-09-20 | Audio output device of display |
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| CN (1) | CN101150883A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103229517A (en) * | 2010-11-24 | 2013-07-31 | 皇家飞利浦电子股份有限公司 | A device comprising a plurality of audio sensors and a method of operating the same |
| CN110875791A (en) * | 2018-08-30 | 2020-03-10 | 罗伯特·博世有限公司 | Public broadcasting apparatus and method |
-
2006
- 2006-09-20 CN CNA2006100963457A patent/CN101150883A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103229517A (en) * | 2010-11-24 | 2013-07-31 | 皇家飞利浦电子股份有限公司 | A device comprising a plurality of audio sensors and a method of operating the same |
| US9538301B2 (en) | 2010-11-24 | 2017-01-03 | Koninklijke Philips N.V. | Device comprising a plurality of audio sensors and a method of operating the same |
| CN110875791A (en) * | 2018-08-30 | 2020-03-10 | 罗伯特·博世有限公司 | Public broadcasting apparatus and method |
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Open date: 20080326 |