CN203289541U - Multi-channel television DVD integrated machine - Google Patents
Multi-channel television DVD integrated machine Download PDFInfo
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- CN203289541U CN203289541U CN2013202254304U CN201320225430U CN203289541U CN 203289541 U CN203289541 U CN 203289541U CN 2013202254304 U CN2013202254304 U CN 2013202254304U CN 201320225430 U CN201320225430 U CN 201320225430U CN 203289541 U CN203289541 U CN 203289541U
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- channel loudspeaker
- loudspeaker group
- loud speaker
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- multichannel
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Abstract
The utility model provides a multi-channel television DVD integrated machine. The multi-channel television DVD integrated machine comprises a machine body, and a display screen which is in folding connection with the machine body. The machine body is provided with an audio processing system. The audio processing system at least comprises a left channel loudspeaker group, a right channel loudspeaker group, and a subwoofer loudspeaker group which is located between the left channel loudspeaker group and the right channel loudspeaker group. The left channel loudspeaker group and the right channel loudspeaker group comprise more or more loudspeakers which are located at different positions respectively. According to the utility model, the stereo perception of sound output is improved by arranging the plurality of loudspeakers which are located at different positions in a television DVD integrated machine separately, and the bass portion in the voice frequency is improved by arranging the subwoofer loudspeaker group, so that the output sound effect is improved.
Description
Technical field
The utility model relates to the audio and video appliances field, is specifically related to multichannel TV DVD all-in-one.
Background technology
In recent years, along with advancing by leaps and bounds of electronics technology industry, the TV DVD all-in-one of portability progressively replaced television set and the DVD of separation, became the main product in market.In order to enhance competitiveness, manufacturer constantly carries out technological innovation, and the new product of release emerges in an endless stream.But the most of enterprise in the present industry is the functional diversity, radio TV signals receiving technology and the video processing technique that the improve TV DVD all-in-one focus as technology competition, and the innovation of having ignored Audiotechnica improves.Raising along with living standard, the consumer more and more payes attention to the pursuit of high tone quality, and present TV DVD all-in-one mostly is a mono speaker or left and right two-way speaker, sound is single and without third dimension, can't meet the demand of consumer to hearing enjoying, many consumers are had to stereo set independently as the sound output of TV DVD all-in-one, to improve the voice output quality.But, with TV DVD all-in-one and the associating of stereo set independently, can fetter the advantage of TV DVD all-in-one portability, and increase the consumer and purchase separately the cost of sound equipment.
The utility model content
The purpose of this utility model is to overcome deficiency of the prior art, and a kind of multichannel TV DVD all-in-one is provided, to improve audio.
The purpose of this utility model is achieved through the following technical solutions:
Multichannel TV DVD all-in-one, comprise fuselage and with fuselage, fold the display screen that is connected, described fuselage is provided with audio frequency processing system, described audio frequency processing system comprises left channel loudspeaker group, right channel loudspeaker group and the subwoofer group between left channel loudspeaker group and right channel loudspeaker group at least, and described left channel loudspeaker group comprises respectively two and loud speaker above and that position is different with the right channel loudspeaker group.In such scheme, improve the third dimension of voice output by a plurality of diverse locations are set respectively in TV DVD all-in-one loud speaker, the bass part in subwoofer group lifting audio frequency is set, thereby improve the output audio.
Concrete, described audio frequency processing system also comprises the multichannel processor of audio signal being decoded and decoded audio-frequency information being sent to respectively left channel loudspeaker group and the corresponding power amplifier of right channel loudspeaker group, and the power amplifier that the audio-frequency information after the multichannel processor decodes is sent to left channel loudspeaker group and right channel loudspeaker group after power amplification.
Concrete, described left channel loudspeaker group comprises the left front left back loud speaker of putting of putting loud speaker and being positioned at back body that is positioned at described front fuselage, and described right channel loudspeaker group comprises the right front right back loud speaker of putting of putting loud speaker and being positioned at back body that is positioned at described front fuselage.
As improving technical scheme, described power amplifier comprises integrated amplifier and rearmounted power amplifier, integrated amplifier is left frontly put loud speaker and the right front loud speaker of putting is connected with described respectively, rearmounted power amplifier is put loud speaker and the right back loud speaker of putting is connected with left back respectively, and rearmounted power amplifier output power is greater than the integrated amplifier power output.In such scheme, by with rearmounted power amplifier output power setting greater than the integrated amplifier power output, make be connected with rearmounted power amplifier left back put loud speaker and right backly put loud speaker with respect to left front loud speaker and the right front loud speaker of putting put that is connected with integrated amplifier, sound is more outstanding, increase the stereovision of sound, improved the surrounding effect of sound.
The inventor is through studying discovery for a long period of time, because of in different tv programme sources, the supper bass power Components of sound accompaniment output is different, even differ larger, so as the user due to supper bass power that can't the anticipation program source, and while with louder volume supper bass output, watching the abundant tv programme source of supper bass power stage, easily cause loud speaker seriously to transship, send unpleasant to hear distortion sound equipment.In order to prevent TV DVD all-in-one overload; subwoofer group of the present utility model be connected with for will be after the multichannel processor decodes supper bass of audio signal be converted to the supper bass of firm power and be sent to the overload protecting circuit module of subwoofer group, the output of described overload protecting circuit module is connected with the input of described multichannel processor.
As the specific descriptions to technical scheme; described overload protecting circuit module comprises a power amplifier, the overload detection circuit that is connected with the power amplifier output and the overload duty detection circuit and the retainer circuit that are linked in sequence with the overload detection circuit, and the output of described retainer circuit is connected with the volume controller that described subwoofer group is provided with.
The utility model has the following advantages and beneficial effect compared to existing technology:
1. the utility model improves the third dimension of voice output by a plurality of diverse locations are set respectively in TV DVD all-in-one loud speaker, and the bass part in subwoofer group lifting audio frequency is set, thereby improves the output audio;
This practical by with rearmounted power amplifier output power setting greater than the integrated amplifier power output, the sound that the rearmounted more preposition loud speaker of loud speaker is sent is more outstanding, has increased the stereovision of sound, has improved the surrounding effect of sound;
3. the utility model, by the overload protecting circuit module is set, is avoided when TV reception, and loud speaker seriously transships, and sends unpleasant to hear distortion sound.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is overload protecting circuit modular circuit schematic diagram.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but the execution mode that the utility model is created is not limited to this.
As shown in Figure 1, the multichannel TV DVD all-in-one that the utility model provides, comprise fuselage and with fuselage, fold the display screen that is connected, fuselage is provided with audio frequency processing system, audio frequency processing system comprises left channel loudspeaker group, right channel loudspeaker group and the subwoofer group between left channel loudspeaker group and right channel loudspeaker group, and the left channel loudspeaker group comprises respectively two loud speakers that position is different with the right channel loudspeaker group.
Wherein, the left channel loudspeaker group comprises the left front left back loud speaker of putting of putting loud speaker and being positioned at back body that is positioned at front fuselage, and the right channel loudspeaker group comprises the right front right back loud speaker of putting of putting loud speaker and being positioned at back body that is positioned at front fuselage; Left frontly put loud speaker and the right front input of putting loud speaker is connected with the output of an integrated amplifier respectively, left backly put loud speaker and the right back input of putting loud speaker is connected with the output of a rearmounted power amplifier respectively, rearmounted power amplifier output power is greater than the integrated amplifier power output; Integrated amplifier be connected the input of power amplifier and be connected with the output of a multichannel processor in audio frequency processing system respectively, the multichannel processor is used for audio signal being decoded and decoded audio-frequency information being sent to respectively integrated amplifier and rearmounted power amplifier.
In order to prevent TV DVD all-in-one overload; the subwoofer group is connected with for the supper bass with the audio signal after the multichannel processor decodes and is converted to the supper bass of firm power and is sent to the overload protecting circuit module of subwoofer group, and the output of overload protecting circuit module is connected with the input of multichannel processor.
As shown in Figure 1 and Figure 2; the overload protecting circuit module comprises a power amplifier 2, the overload detection circuit 3 that is connected with the power amplifier output and the overload duty detection circuit 4 and the retainer circuit 5 that are linked in sequence with overload detection circuit 3, and the output of retainer circuit 5 is connected with the volume controller 1 that the subwoofer group is provided with.
Operation principle of the present utility model is as follows:
When the audio signal access was arranged, the multichannel processor in audio frequency processing system was decoded audio signal and decoded audio-frequency information is sent to respectively integrated amplifier, rearmounted power amplifier and overload protecting circuit module; After processing decoded audio signal, integrated amplifier is sent to respectively left front loud speaker and the right front loud speaker of putting put, be sent to respectively left back loud speaker and the right back loud speaker of putting put after rearmounted power amplifier is processed decoded audio signal, the overload protecting circuit module is converted to the supper bass of decoded audio signal the supper bass of firm power and is sent to the subwoofer group;
When the utility model is worked, owing to being provided with loud speaker in the front, rear, left and right of fuselage diverse location correspondence respectively, thereby improve the third dimension of voice output; And the subwoofer group that arranges between left channel loudspeaker group and right channel loudspeaker group promotes the bass part in audio frequency, thereby improves the output audio; Rearmounted power amplifier output power setting is greater than the integrated amplifier power output, and the sound that the rearmounted more preposition loud speaker of loud speaker is sent is more outstanding, has increased the stereovision of sound, has improved the surrounding effect of sound; Due to the overload protecting circuit module, the supper bass in decoded audio signal is converted to the supper bass of firm power, avoids the subwoofer group seriously to transship, send unpleasant to hear distortion sound.
The specific works principle of the utility model overload protecting circuit module wherein is as follows:
At first, the supper bass in decoded audio signal, through volume controller 1, then is transferred into power amplifier 2 and carries out power amplification, promotes the subwoofer multicast by power amplifier 2 and emits supper bass; When the output of overload testing circuit 3 detection power amplifiers 2 exceeds standard value and during distortion, the information of distortion can be sent to overload duty detection circuit 4, it is distortion once in a while or lasting distortion that overload duty detection circuit 4 can be judged, when being judged to be lasting distortion, overload duty detection circuit 4 can send instruction and start retainer circuit 5, retainer circuit 5 can be adjusted volume controller 1, makes the power stage of volume controller with safety.
The above embodiment has only expressed execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.Should be pointed out that for the person of ordinary skill of the art,, not breaking away under prerequisite of the present utility model, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (6)
1. multichannel TV DVD all-in-one, comprise fuselage and with fuselage, fold the display screen that is connected, described fuselage is provided with audio frequency processing system, it is characterized in that: described audio frequency processing system comprises left channel loudspeaker group, right channel loudspeaker group and the subwoofer group between left channel loudspeaker group and right channel loudspeaker group at least, and described left channel loudspeaker group comprises respectively two and loud speaker above and that position is different with the right channel loudspeaker group.
2. multichannel TV DVD all-in-one according to claim 1, it is characterized in that: described audio frequency processing system also comprises the multichannel processor of audio signal being decoded and decoded audio-frequency information being sent to respectively left channel loudspeaker group and the corresponding power amplifier of right channel loudspeaker group, and the power amplifier that the audio-frequency information after the multichannel processor decodes is sent to left channel loudspeaker group and right channel loudspeaker group after power amplification.
3. multichannel TV DVD all-in-one according to claim 2, it is characterized in that: described left channel loudspeaker group comprises the left front left back loud speaker of putting of putting loud speaker and being positioned at back body that is positioned at described front fuselage, and described right channel loudspeaker group comprises the right front right back loud speaker of putting of putting loud speaker and being positioned at back body that is positioned at described front fuselage.
4. multichannel TV DVD all-in-one according to claim 3, it is characterized in that: described power amplifier comprises integrated amplifier and rearmounted power amplifier, integrated amplifier is left frontly put loud speaker and the right front loud speaker of putting is connected with described respectively, rearmounted power amplifier is put loud speaker and the right back loud speaker of putting is connected with left back respectively, and rearmounted power amplifier output power is greater than the integrated amplifier power output.
5. multichannel TV DVD all-in-one according to claim 4; it is characterized in that: described subwoofer group be connected with for will be after the multichannel processor decodes supper bass of audio signal be converted to the firm power supper bass and be sent to the overload protecting circuit module of subwoofer group, the output of described overload protecting circuit module is connected with the input of described multichannel processor.
6. multichannel TV DVD all-in-one according to claim 5; it is characterized in that: described overload protecting circuit module comprises a power amplifier, the overload detection circuit that is connected with the power amplifier output and the overload duty detection circuit and the retainer circuit that are linked in sequence with the overload detection circuit, and the output of described retainer circuit is connected with the volume controller that described subwoofer group is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202254304U CN203289541U (en) | 2013-04-27 | 2013-04-27 | Multi-channel television DVD integrated machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202254304U CN203289541U (en) | 2013-04-27 | 2013-04-27 | Multi-channel television DVD integrated machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203289541U true CN203289541U (en) | 2013-11-13 |
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ID=49545881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202254304U Expired - Fee Related CN203289541U (en) | 2013-04-27 | 2013-04-27 | Multi-channel television DVD integrated machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203289541U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106954144A (en) * | 2017-03-15 | 2017-07-14 | 四川长虹电器股份有限公司 | Television acoustics system |
| CN108566612A (en) * | 2018-06-29 | 2018-09-21 | 青岛海信电器股份有限公司 | A kind of loud speaker detection method, terminal device and computer storage media |
-
2013
- 2013-04-27 CN CN2013202254304U patent/CN203289541U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106954144A (en) * | 2017-03-15 | 2017-07-14 | 四川长虹电器股份有限公司 | Television acoustics system |
| CN108566612A (en) * | 2018-06-29 | 2018-09-21 | 青岛海信电器股份有限公司 | A kind of loud speaker detection method, terminal device and computer storage media |
| CN108566612B (en) * | 2018-06-29 | 2020-09-25 | 海信视像科技股份有限公司 | Loudspeaker detection method, terminal equipment and computer storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20140427 |