CN104469621A - Anti-interference circuit and method of voice remote controller - Google Patents
Anti-interference circuit and method of voice remote controller Download PDFInfo
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- CN104469621A CN104469621A CN201410745249.5A CN201410745249A CN104469621A CN 104469621 A CN104469621 A CN 104469621A CN 201410745249 A CN201410745249 A CN 201410745249A CN 104469621 A CN104469621 A CN 104469621A
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Abstract
The invention discloses an anti-interference circuit and method of a voice remote controller. The anti-interference circuit of the voice remote controller comprises a first differential processing circuit and a secondary microphone arranged on a controlled electronic device, one path of the input end of the first differential processing circuit receives compound voice signals which are sent by the voice remote controller, collected by a main microphone and encoded by an encoding module, the other path of the input end of the first differential processing circuit receives noise signals collected by the secondary microphone, and the output end of the first differential processing circuit is connected with a voice signal decoding processing circuit through a band-pass filter circuit. According to the anti-interference circuit of the voice remote controller, the secondary microphone is arranged at the end of the controlled electronic device and used for collecting environmental noise signals, differential treatment is carried out on the compound voice signals collected by the main microphone and the environmental noise signals collected by the secondary microphone by using the characteristic that background noise is not changed within a short period, then pure voice control signals can be obtained, and the adaptive capacity to environment of the voice remote controller is improved.
Description
Technical field
The present invention relates to a kind of speech processing circuit, specifically, relate to a kind of voice remote controller anti-jamming circuit and method.
Background technology
Speech-sound intelligent remote controller is for gathering the voice control command of user, and be sent to television set main control unit, corresponding operation is also performed by main control unit analyzing speech control command, workshop or other background noises larger place application time, the voice intensity of user is much weak compared with background noise, therefore, voice signal can be subject to great interference, thus cause television set to receive wrong signal and make the problem of misoperation, or receive the voice control command comprised compared with strong background noise, and main control unit correctly therefrom cannot extract real control command, and there is erroneous judgement, the phenomenon of misoperation is caused to occur.
Summary of the invention
The present invention is affected by environment comparatively large in order to solve existing voice remote controller, and the technical problem cannot applied in the place that background noise is larger, proposes a kind of voice remote controller anti-jamming circuit, can by ambient noise filtering, and adaptive capacity to environment is strong.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of voice remote controller anti-jamming circuit, comprise the first difference processing circuit and be arranged at the secondary Mike on controlled electronic equipment, the input of described first difference processing circuit wherein a road receive the transmission of voice remote controller by main Mike gather and composite voice signal after coding module coded treatment, an other road receives the noise signal gathered by described secondary Mike, and the output of described first difference processing circuit is connected with voice signal decoding processing circuit by a bandwidth-limited circuit.
Further, also comprise the second difference processing circuit and audio sample circuit, the input of described audio sample circuit is connected with described secondary Mike, input one tunnel of described second difference processing circuit is connected with the output of described audio sample circuit, an other road receives the audio signal that controlled electronic equipment exports, and the output of described second difference processing circuit is connected with the input of described first difference processing circuit.
Further, a rejector circuit is connected with between the second described difference processing circuit and the first described difference processing circuit.
Further, the output of described voice signal decoding processing circuit connects loud speaker by power amplifier.
Further, the first described difference processing circuit is connected with wireless receiving module, for receiving the wireless composite voice signal that voice remote controller sends.
Further, described main Mike is arranged at the middle part of described voice remote controller, and described secondary Mike is arranged at the side of described controlled electronic equipment.
Based on above-mentioned a kind of language remote controller anti-jamming circuit, the present invention proposes a kind of voice remote controller anti-interference processing method simultaneously, comprises the following steps:
(1), the first difference processing circuit receive the transmission of voice remote controller by main Mike gather and composite voice signal after coding module coded treatment and the noise signal that gathered by secondary Mike, and be sent to bandwidth-limited circuit by after two paths of signals difference processing;
(2), bandwidth-limited circuit filters out signal outside human audio's bandwidth range, and is sent to voice signal decoding processing circuit and carries out decoding process.
Further, in described step (2), described bandwidth-limited circuit allows the bandwidth range passed through to be 7 ~ 20KHz.
Further, the audio signal that pure noise signal and controlled electronic equipment send is comprised in the noise signal that described secondary Mike gathers, in described step (1), the noise signal that secondary Mike gathers also comprises the step of the audio signal filtering sent by described controlled electronic equipment before being sent to the first difference processing circuit:
The noise signal that a, secondary Mike gather is sent to audio sample circuit, and received signal is carried out audio sample by described audio sample circuit, and is sent to the two or two difference processing circuit;
B, described second difference processing circuit receive the noise signal after sampling, and the audio signal that this noise signal and controlled electronic equipment export is carried out difference processing, obtain pure noise signal, and send it to the first difference processing circuit.
Further, in described step b, also comprise the step of described pure noise signal being carried out bandreject filtering, filter out the signal being positioned at human audio's bandwidth range.
Compared with prior art, advantage of the present invention and good effect are: voice remote controller anti-jamming circuit of the present invention, by arranging a secondary Mike at controlled electronic equipment end, for gathering ambient noise signal, utilize the characteristic that background noise is constant within shorter a period of time, the ambient noise signal gathered by the composite voice signal including audio controls and ambient noise signal that main Mike gathered and secondary Mike carries out difference processing, and then pure audio controls can be obtained, avoid the erroneous judgement of main control unit to audio controls, improve the adaptive capacity to environment of voice remote controller.
After reading the detailed description of embodiment of the present invention by reference to the accompanying drawings, the other features and advantages of the invention will become clearly.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of embodiment functional-block diagram of voice remote controller anti-jamming circuit proposed by the invention;
Fig. 2 is voice remote controller anti-interference circuit system structural representation proposed by the invention;
Fig. 3 is another embodiment functional-block diagram of voice remote controller anti-jamming circuit proposed by the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one, the present embodiment proposes a kind of voice remote controller anti-jamming circuit, as Fig. 1, shown in Fig. 2, comprise the first difference processing circuit and the secondary Mike 12 being arranged on controlled electronic equipment 11, the input of described first difference processing circuit wherein a road receive the transmission of voice remote controller 21 by main Mike 22 gather and composite voice signal after coding module coded treatment, an other road receives the noise signal gathered by described secondary Mike, the output of described first difference processing circuit is connected with voice signal decoding processing circuit by a bandwidth-limited circuit.The voice remote controller anti-jamming circuit of the present embodiment, by arranging secondary Mike on controlled electronic equipment, for gathering ambient noise signal, utilize the characteristic that ambient noise is constant within shorter a period of time, the ambient noise signal gathered by the composite voice signal including audio controls and ambient noise signal that main Mike gathered and secondary Mike is inputed to the first difference processing circuit and carries out difference processing, and then pure audio controls can be obtained, avoid the erroneous judgement of main control unit to audio controls, improve the adaptive capacity to environment of voice remote controller.
In the present embodiment, if controlled electronic equipment self is with the words of audio playing function, because secondary Mike is from obtaining close to controlled electronic equipment, therefore pure ambient noise signal and the audio signal coming from controlled electronic equipment is comprised in the noise signal that secondary Mike gathers, and for the signal that main Mike gathers, because main Mike is relatively far away apart from controlled electronic equipment, the audio signal that ambient noise signal sends much larger than controlled electronic equipment, therefore, pure ambient noise signal and audio controls is mainly comprised in the composite voice signal that main Mike gathers, the degree of purity of audio controls is exported in order to improve the first difference processing circuit, first the degree of purity that namely the first difference processing circuit input end also comes from the noise signal that secondary Mike gathers should be improved, as shown in Figure 3, also comprise the second difference processing circuit and audio sample circuit in the present embodiment, the input of described audio sample circuit is connected with described secondary Mike, input one tunnel of described second difference processing circuit is connected with the output of described audio sample circuit, an other road receives the audio signal that controlled electronic equipment exports, the output of described second difference processing circuit is connected with the input of described first difference processing circuit.The noise signal that audio sample circuit is used for secondary Mike to gather is sampled, and be sent to the second difference processing circuit, an other road of described second difference processing circuit receives the audio signal of controlled electronic equipment output, because this audio signal is controlled to send by the main control unit of controlled electronic equipment, therefore, this road signal is directly taken over by the second difference processing circuit from the corresponding module of main control unit, after received two paths of signals is carried out difference processing by the second difference processing circuit, obtain pure ambient noise signal, and export the first difference channel to, the audio controls of main Mike is come from for Difference Calculation, due to do difference processing for pure ambient noise signal, therefore, comprise after pure ambient noise signal and audio controls carry out difference with main Mike, more pure audio controls can be obtained.
As shown in Figure 2, because main Mike 22 is for the collection of voice signal, secondary Mike is used for the collection of noise, so the locations of structures of the two is also very important, them are made to be in the position of easier Received signal strength on controlled electronic equipment and voice remote controller, in the present embodiment, described main Mike 22 is arranged at the middle part of described voice remote controller 21, described secondary Mike 12 is arranged at the side of described controlled electronic equipment 11, the such as upper left quarter of controlled electronic equipment 11, makes it more easily receive extraneous noise and easily dust-proof.
As shown in Figure 3, the operation principle of voice remote controller is that the main Mike being arranged at voice remote controller gathers audio controls, launched by wireless transmitter module after carrying out coded treatment by voice remote controller, wireless receiving module is correspondingly provided with at controlled electronic equipment end, for receiving the wireless composite voice signal coming from voice remote controller and send, and carry out decoding process, therefore, the first described difference processing circuit is connected with the wireless receiving module of front end, received wireless composite voice signal is sent to this first difference processing circuit and does further process by wireless receiving module.Wherein, the wireless transmitter module in the present embodiment and wireless receiving module can pass through rf wireless signal or blue teeth wireless Signal transmissions.
In the present embodiment, a rejector circuit is connected with between the second described difference processing circuit and the first described difference processing circuit.Be mainly used in being the first difference processing circuit output environment noise signal due to the second difference processing circuit, therefore, likely comprise untreated voice signal completely, by being connected with a rejector circuit between the second difference processing circuit and the first described difference processing circuit, for the signal of filtering human speech frequency range, to the target signal filter of 7KHz ~ 20KHz bandwidth be about, ensure that in the second difference processing circuit output signal and do not comprise be mingled with human speech signal.
For the ease of integrated making, preferably described in the present embodiment voice signal decoding processing circuit, the second difference processing circuit and audio sample circuit are integrated in the main control chip of controlled electronic equipment, the output of described main control chip connects loud speaker by power amplifier, the audio signal after decoding process is exported.
Wherein, in the present embodiment, the controlled electronic equipment of indication can be the electric equipment that television set, audio amplifier, air-conditioning etc. have voice remote control function.The voice remote controller anti-jamming circuit of the present embodiment is particularly useful in workshop or the larger place of other background noises, accurately audio controls can be extracted from having stronger noise, avoiding main control unit because identifying the problem of difficulty to the erroneous judgement of audio controls, improve the adaptive capacity to environment of voice remote controller.
Embodiment two, based on a kind of voice remote controller anti-jamming circuit in embodiment one, the present embodiment proposes a kind of voice remote controller anti-interference processing method, comprises the following steps:
S1, the first difference processing circuit receive the transmission of voice remote controller by main Mike gather and composite voice signal after coded treatment resume module and the noise signal that gathered by secondary Mike, and be sent to bandwidth-limited circuit by after two paths of signals difference processing;
S2, bandwidth-limited circuit filter out the signal outside human audio's bandwidth range, and be sent to voice signal decoding processing circuit carry out decoding process.
The voice remote controller anti-interference method of the present embodiment, by arranging secondary Mike on controlled electronic equipment, for gathering ambient noise signal, utilize the characteristic that ambient noise is constant within shorter a period of time, by main Mike is gathered include audio controls and ambient noise signal and the ambient noise signal that composite voice signal after coding module coded treatment and secondary Mike gather inputs to the first difference processing circuit carries out difference processing, and then pure audio controls can be obtained, avoid the erroneous judgement of main control unit to audio controls, improve the adaptive capacity to environment of voice remote controller.By bandpass filtering step, for further the noise signal that non-for front step difference processing is fallen being carried out filtering, further increase the degree of purity of audio controls.
Wherein, in described step S2, described bandwidth-limited circuit allows the bandwidth range passed through to be 7 ~ 20KHz, also, allows the signal of human speech bandwidth range to pass through, exceeds this scope and think noise signal, and carry out filtering.
If controlled electronic equipment self is with the words of audio playing function, because secondary Mike is from obtaining close to controlled electronic equipment, therefore pure ambient noise signal and the audio signal coming from controlled electronic equipment is comprised in the noise signal that secondary Mike gathers, and for the signal that main Mike gathers, because main Mike is relatively far away apart from controlled electronic equipment, the audio signal that ambient noise signal sends much larger than controlled electronic equipment, therefore, pure ambient noise signal and audio controls is mainly comprised in the composite voice signal that main Mike gathers, the degree of purity of audio controls is exported in order to improve the first difference processing circuit, in described step S1, the noise signal that secondary Mike gathers also comprises the step of the audio signal filtering sent by described controlled electronic equipment before being sent to the first difference processing circuit:
The noise signal that a, secondary Mike gather is sent to audio sample circuit, and received signal is carried out audio sample by described audio sample circuit, and is sent to the two or two difference processing circuit;
B, described second difference processing circuit receive the noise signal after sampling, and the audio signal that this noise signal and controlled electronic equipment export is carried out difference processing, obtain pure noise signal, and send it to the first difference processing circuit.
Be mainly used in being the first difference processing circuit output environment noise signal due to the second difference processing circuit, therefore, untreated voice signal completely is likely comprised in the signal that second difference processing circuit exports, in described step b, also comprise the step of described pure noise signal being carried out bandreject filtering, filter out the signal being positioned at human audio's bandwidth range.Specifically can by being connected with a rejector circuit between the second difference processing circuit and the first described difference processing circuit, for the signal of filtering human speech frequency range, to the target signal filter of 7 ~ 20KHz bandwidth be about, ensure that in the second difference processing circuit output signal and do not comprise be mingled with human speech signal.
Certainly; above-mentioned explanation is not limitation of the present invention; the present invention is also not limited in above-mentioned citing, the change that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement, also should belong to protection scope of the present invention.
Claims (10)
1. a voice remote controller anti-jamming circuit, it is characterized in that, comprise the first difference processing circuit and be arranged at the secondary Mike on controlled electronic equipment, the input of described first difference processing circuit wherein a road receive the transmission of voice remote controller by main Mike gather and composite voice signal after coding module coded treatment, an other road receives the noise signal gathered by described secondary Mike, and the output of described first difference processing circuit is connected with voice signal decoding processing circuit by a bandwidth-limited circuit.
2. voice remote controller anti-jamming circuit according to claim 1, it is characterized in that, also comprise the second difference processing circuit and audio sample circuit, the input of described audio sample circuit is connected with described secondary Mike, input one tunnel of described second difference processing circuit is connected with the output of described audio sample circuit, an other road receives the audio signal that controlled electronic equipment exports, and the output of described second difference processing circuit is connected with the input of described first difference processing circuit.
3. voice remote controller anti-jamming circuit according to claim 2, is characterized in that, is connected with a rejector circuit between the second described difference processing circuit and the first described difference processing circuit.
4. voice remote controller anti-jamming circuit according to claim 2, is characterized in that, the output of described voice signal decoding processing circuit connects loud speaker by power amplifier.
5. the voice remote controller anti-jamming circuit according to any one of claim 1-4, is characterized in that, the first described difference processing circuit is connected with wireless receiving module, for receiving the wireless composite voice signal that voice remote controller sends.
6. the voice remote controller anti-jamming circuit according to any one of claim 1-4, is characterized in that, described main Mike is arranged at the middle part of described voice remote controller, and described secondary Mike is arranged at the side of described controlled electronic equipment.
7. a voice remote controller anti-interference processing method, is characterized in that, comprises the following steps:
(1), the first difference processing circuit receive the transmission of voice remote controller by main Mike gather and through the composite voice signal of coding module coded treatment and the noise signal that gathered by secondary Mike, and be sent to bandwidth-limited circuit by after two paths of signals difference processing;
(2), bandwidth-limited circuit filters out signal outside human audio's bandwidth range, and is sent to voice signal decoding processing circuit and carries out decoding process.
8. voice remote controller anti-interference processing method according to claim 7, is characterized in that, in described step (2), described bandwidth-limited circuit allows the bandwidth range passed through to be 7 KHz ~ 20KHz.
9. voice remote controller anti-interference processing method according to claim 7, it is characterized in that, the audio signal that pure noise signal and controlled electronic equipment send is comprised in the noise signal that described secondary Mike gathers, in described step (1), the noise signal that secondary Mike gathers also comprises the step of the audio signal filtering sent by described controlled electronic equipment before being sent to the first difference processing circuit:
The noise signal that a, secondary Mike gather is sent to audio sample circuit, and received signal is carried out audio sample by described audio sample circuit, and is sent to the second difference processing circuit;
B, described second difference processing circuit receive the noise signal after sampling, and the audio signal that this noise signal and controlled electronic equipment export is carried out difference processing, obtain pure noise signal, and send it to the first difference processing circuit.
10. voice remote controller anti-interference processing method according to claim 9, is characterized in that, in described step b, also comprises the step of described pure noise signal being carried out bandreject filtering, filters out the signal being positioned at human audio's bandwidth range.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107845388A (en) * | 2017-12-25 | 2018-03-27 | 青岛海信移动通信技术股份有限公司 | Audio recognition method and device |
| CN110322882A (en) * | 2019-05-13 | 2019-10-11 | 厦门亿联网络技术股份有限公司 | A kind of method and system generating mixing voice data |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0545731A1 (en) * | 1991-12-06 | 1993-06-09 | Sony Corporation | Noise reducing microphone apparatus |
| CN101444451A (en) * | 2008-12-31 | 2009-06-03 | 安徽同舟电子科技有限公司 | Sound control massager and sound control method thereof |
| CN101727907A (en) * | 2008-10-29 | 2010-06-09 | 雅马哈株式会社 | Audio-frequency processing circuit, audio-frequency processing device and method |
| CN202261478U (en) * | 2011-10-25 | 2012-05-30 | 郝一亚 | Speech signal amplifier |
| US20130002603A1 (en) * | 2011-06-30 | 2013-01-03 | Masahiro Tada | Sensor module and display device |
| CN203537555U (en) * | 2013-09-27 | 2014-04-09 | Tcl通力电子（惠州）有限公司 | Audio device |
-
2014
- 2014-12-09 CN CN201410745249.5A patent/CN104469621B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0545731A1 (en) * | 1991-12-06 | 1993-06-09 | Sony Corporation | Noise reducing microphone apparatus |
| CN101727907A (en) * | 2008-10-29 | 2010-06-09 | 雅马哈株式会社 | Audio-frequency processing circuit, audio-frequency processing device and method |
| CN101444451A (en) * | 2008-12-31 | 2009-06-03 | 安徽同舟电子科技有限公司 | Sound control massager and sound control method thereof |
| US20130002603A1 (en) * | 2011-06-30 | 2013-01-03 | Masahiro Tada | Sensor module and display device |
| CN202261478U (en) * | 2011-10-25 | 2012-05-30 | 郝一亚 | Speech signal amplifier |
| CN203537555U (en) * | 2013-09-27 | 2014-04-09 | Tcl通力电子（惠州）有限公司 | Audio device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107845388A (en) * | 2017-12-25 | 2018-03-27 | 青岛海信移动通信技术股份有限公司 | Audio recognition method and device |
| CN107845388B (en) * | 2017-12-25 | 2021-06-01 | 青岛海信移动通信技术股份有限公司 | Voice recognition method and device |
| CN110322882A (en) * | 2019-05-13 | 2019-10-11 | 厦门亿联网络技术股份有限公司 | A kind of method and system generating mixing voice data |
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