CN202998445U - Pickup system - Google Patents
Pickup system Download PDFInfo
- Publication number
- CN202998445U CN202998445U CN 201220711293 CN201220711293U CN202998445U CN 202998445 U CN202998445 U CN 202998445U CN 201220711293 CN201220711293 CN 201220711293 CN 201220711293 U CN201220711293 U CN 201220711293U CN 202998445 U CN202998445 U CN 202998445U
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- amplifier
- microphone
- pickup
- biasing circuit
- pickup system
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Abstract
Disclosed in the utility model is a pickup system that comprises a microphone pickup array, a first amplifier, a first biasing circuit, a second amplifier, and a second biasing circuit. The first amplifier and the second amplifier are connected with the microphone pickup array; the first amplifier is connected with the first biasing circuit; and the second amplifier is connected with the first biasing circuit. According to the pickup system provided by the utility model, a problem that a clear voice can not be picked up remotely in the prior art can be solved. Therefore, the user can use the pickup system to carry out voice pickup without being restricted by the distance, so that the great convenience is brought for the user.
Description
Technical field
The utility model relates to electronic information field, particularly relates to a kind of pickup system.
Background technology
Traditional sound pick-up method or system mainly contain following two kinds of implementations:
A kind of microphone system that is formed by two microphones, one of them full directional microphone is used for the absorbing environmental noise, and a uni-directional microphone is used for absorbing voice, carries out noise suppressed through sending into chip after amplifier, analog to digital converter after signal is come in;
Another is made of unidirectivity and omni-directional microphone, single microphone is used for absorbing voice, full directional microphone is used for the absorbing environmental noise, send into DSP(DigitalSignal Processing after both signals process analog-to-digital conversion devices, Digital Signal Processing) carry out Digital Signal Processing in, reduce environmental noise.
Yet present high definition pickup system is merely able to realize in-plant scheme, can't realize the pickup of remote (more than 5M), thereby bring inconvenience to the user.
The utility model content
Based on this, the utility model provides a kind of pickup system, can realize remote pickup.
For achieving the above object, the utility model adopts following technical scheme:
A kind of pickup system comprises: microphone pickup array, the first amplifier, the first biasing circuit, the second amplifier, the second biasing circuit; Described the first amplifier, the second amplifier all are connected with described microphone pickup array; Described the first amplifier also is connected with described the first biasing circuit, and described the second amplifier also is connected with described the second biasing circuit.
Can be found out by above scheme, pickup system of the present utility model, by the output amplitude that changes described microphone signal with highly sensitive microphone and adjusting biasing circuit, the sensitivity of adjusting microphone signal, thereby solved clear problem of picking up voice at a distance of the prior art, make the user in use can not be subjected to the restriction of distance to carry out pickup, bring great convenience to the user.
Description of drawings
Fig. 1 is the structural representation of a kind of pickup system in the utility model embodiment;
Fig. 2 is the structural representation of a kind of pickup system in another embodiment of the utility model.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the technical solution of the utility model is further described.
Shown in Figure 1, a kind of pickup system comprises: microphone pickup array, the first amplifier, the first biasing circuit, the second amplifier, the second biasing circuit; Described the first amplifier, the second amplifier all are connected with described microphone pickup array; Described the first amplifier also is connected with described the first biasing circuit, and described the second amplifier also is connected with described the second biasing circuit.
The course of work of above-mentioned pickup system is as follows:
Microphone pickup array absorbs microphone signal, when the microphone signal that absorbs enters respectively described the first amplifier, the second amplifier, thereby the output amplitude adjustment that changes described microphone signal by regulating described biasing circuit receives the sensitivity of microphone signal, then amplifies respectively in the first amplifier, the second amplifier and processes rear output.
As an embodiment preferably, shown in Figure 2, pickup system of the present utility model can also comprise:
The first analog to digital converter, the second analog to digital converter; Described the first analog to digital converter is connected with described the first amplifier, and described the second analog to digital converter is connected with described the second amplifier.Two analog to digital converters can be used for microphone signal is carried out analog-to-digital conversion, obtain digital signal with convenient follow-up processing.
As an embodiment preferably, shown in Figure 2, pickup system of the present utility model can also comprise:
Signal processor; Described signal processor is connected respectively with described the first analog to digital converter, the second analog to digital converter.By load related algorithm in signal processor, can realize the noise suppressed processing.
In addition, as an embodiment preferably, shown in Figure 2, described microphone pickup array can specifically comprise: the first full directional microphone, the second full directional microphone; The described first full directional microphone is connected with described the first amplifier, and the described second full directional microphone is connected with described the second amplifier.In traditional pickup system, use a full directional microphone and a uni-directional microphone, full directional microphone is used for the reception environment noise, and uni-directional microphone is used for receiving voice.If above-mentioned traditional scheme uses at the intelligent TV of SMART TV() in, for the bonding directional microphone is realized unidirectivity, need to be in the mould that microphone is installed perforate behind, this module must exist with the form of external connection module so.Owing to adopting two full directional microphones in the utility model embodiment, therefore that has avoided effectively that traditional pickup system uses that a full directional microphone and uni-directional microphone bring need to be in the problem of the mould that microphone is installed perforate behind, convenient remote pickup+decrease of noise functions of realizing array microphone in television PC, and the classroom recording that realizes high definition, low noise.
Can find out by above scheme, pickup system of the present utility model, by the output amplitude that changes described microphone signal with highly sensitive microphone and adjusting biasing circuit, the sensitivity of adjusting microphone signal, thereby solved clear problem of picking up voice at a distance of the prior art, make the user in use can not be subjected to the restriction of distance to carry out pickup, bring great convenience to the user.
The above embodiment has only expressed several 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, without departing from the concept of the premise utility, 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 (4)
1. a pickup system, is characterized in that, comprising: microphone pickup array, the first amplifier, the first biasing circuit, the second amplifier, the second biasing circuit; Described the first amplifier, the second amplifier all are connected with described microphone pickup array; Described the first amplifier also is connected with described the first biasing circuit, and described the second amplifier also is connected with described the second biasing circuit.
2. pickup system according to claim 1, is characterized in that, also comprises:
The first analog to digital converter, the second analog to digital converter; Described the first analog to digital converter is connected with described the first amplifier, and described the second analog to digital converter is connected with described the second amplifier.
3. pickup system according to claim 2, is characterized in that, also comprises:
Signal processor; Described signal processor is connected respectively with described the first analog to digital converter, the second analog to digital converter.
4. according to claim 1 and 2 or 3 described pickup systems, is characterized in that, described microphone pickup array comprises: the first full directional microphone, the second full directional microphone; The described first full directional microphone is connected with described the first amplifier, and the described second full directional microphone is connected with described the second amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220711293 CN202998445U (en) | 2012-12-20 | 2012-12-20 | Pickup system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220711293 CN202998445U (en) | 2012-12-20 | 2012-12-20 | Pickup system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202998445U true CN202998445U (en) | 2013-06-12 |
Family
ID=48569569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220711293 Expired - Lifetime CN202998445U (en) | 2012-12-20 | 2012-12-20 | Pickup system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202998445U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104244137A (en) * | 2014-09-30 | 2014-12-24 | 广东欧珀移动通信有限公司 | Method and system for improving long-shot recording effect during videoing |
| CN108401200A (en) * | 2018-04-09 | 2018-08-14 | 北京唱吧科技股份有限公司 | A kind of microphone apparatus |
-
2012
- 2012-12-20 CN CN 201220711293 patent/CN202998445U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104244137A (en) * | 2014-09-30 | 2014-12-24 | 广东欧珀移动通信有限公司 | Method and system for improving long-shot recording effect during videoing |
| CN104244137B (en) * | 2014-09-30 | 2017-11-17 | 广东欧珀移动通信有限公司 | The method and system of distant view recording effect are lifted in a kind of video process |
| CN108401200A (en) * | 2018-04-09 | 2018-08-14 | 北京唱吧科技股份有限公司 | A kind of microphone apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |
|
| CX01 | Expiry of patent term |