CN203057371U - Camera device having echo elimination function and television set - Google Patents
Camera device having echo elimination function and television set Download PDFInfo
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- CN203057371U CN203057371U CN 201220585685 CN201220585685U CN203057371U CN 203057371 U CN203057371 U CN 203057371U CN 201220585685 CN201220585685 CN 201220585685 CN 201220585685 U CN201220585685 U CN 201220585685U CN 203057371 U CN203057371 U CN 203057371U
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- 238000003379 elimination reaction Methods 0.000 title abstract description 4
- 238000005070 sampling Methods 0.000 abstract description 3
- 238000002592 echocardiography Methods 0.000 abstract 1
- 230000005236 sound signal Effects 0.000 description 14
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Abstract
The utility model discloses a camera device having an echo elimination function and a television set. The camera device comprises a camera body, as well as a lens, a microphone and a USB interface which are arranged on the camera body, and an image sensor which is connected with the lens and is used for acquiring image information through the lens. The camera device further comprises a digital signal processor which is used for performing noise elimination processing on sound information and the image information respectively; the digital signal processor includes a first way of audio input interface which is used for connecting with the microphone and a second way of audio input interface used for inputting noise sampling signals; and the digital signal processor is connected with the image sensor and the USB interface respectively. With the camera device of the utility model adopted, echoes can be effectively eliminated; noise can be lowered; signal-to-noise ratio is improved; and convenience can be provided for users.
Description
Technical field
The utility model relates to electronic technology field, in particular a kind of cam device and television set with echo cancellation performance.
Background technology
The camera on television set that is used in phonetic function of prior art, by camera lens, imageing sensor (SENSOR), DSP(digital signal processor), digital MIC(microphone), USB interface chip etc. partly forms.Wherein, the image information that camera lens, SENSOR acquisition process arrive, after being processed by dsp code, arrive the USB chip, sends to the TV main frame.The voice signal that numeral MIC collects, process through DSP, USB interface, sends to the TV main frame.
TV itself has the loudspeaker that power is larger, if the sound that camera MIC collects is played back in real time by TV main frame loudspeaker, the sound that loudspeaker send is collected by camera MIC again, iterative cycles, will cause the interference of larger echo like this, causes inconvenience to the user.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of cam device and television set with echo cancellation performance, can effectively carry out the echo elimination, has reduced noise, has improved signal to noise ratio, provides users with the convenient.
The technical solution of the utility model is as follows:
A kind of cam device with echo cancellation performance, comprise the camera body, be arranged on camera lens, microphone and USB interface on described camera body, and with described camera lens, be connected for obtain the imageing sensor of image information by described camera lens, wherein, it also comprises for respectively acoustic information and described image information being carried out the digital signal processor of denoising Processing, and described digital signal processor comprises first via audio input interface for being connected with described microphone and for the second road audio input interface of input noise sampled signal;
Described digital signal processor is connected with described imageing sensor, USB interface respectively.
The described cam device with echo cancellation performance, wherein, described microphone is digital microphone.
The described cam device with echo cancellation performance, wherein, described digital signal processor is a dsp chip.
A kind of television set, comprise TV SKD, and be arranged on the CPU on described TV SKD, power amplifier, and the loudspeaker that are connected with described power amplifier, it is characterized in that, it also comprises the described cam device with echo cancellation performance, described cam device is connected with described TV SKD by described USB interface, and described the second road audio input interface is connected with the voice signal interface of described TV SKD audio frequency output.
A kind of cam device and television set with echo cancellation performance provided by the utility model, when camera is worked, the microphone of cam device gathers extraneous audio signal, and the first via audio input interface by digital signal processor is transferred to described digital signal processor processes; Simultaneously, the second road audio input interface of described digital signal processor is sampled extraneous noise signal as the noise audio signal that outputs to tv speaker from television set.Described digital signal processor inside is contrasted the audio signal of two-way input, from first via audio input interface passage, handle filters or weakens with audio signal identical in the second road audio input interface passage, can effectively avoid like this by camera head microphone, being collected again because of the sound that loudspeaker send, iterative cycles, caused echo is disturbed, reduced noise, improved signal to noise ratio, provided users with the convenient.
The accompanying drawing explanation
Fig. 1 is the embodiment electrical block diagram that the utlity model has the cam device of echo cancellation performance.
Fig. 2 is the embodiment electrical block diagram of the utility model television set.
Embodiment
The utility model provides a kind of cam device and television set with echo cancellation performance, clearer, clear and definite for making the purpose of this utility model, technical scheme and effect, referring to the accompanying drawing examples, the utility model is further described.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
A kind of cam device with echo cancellation performance that the utility model embodiment provides, as shown in Figure 1, comprise camera body 100, be arranged on the camera lens 110 on described camera body 100, microphone 140 and usb 1 50, it also comprises: with described camera lens 110, be connected for obtain the imageing sensor 120 of image information by described camera lens 110, for respectively acoustic information and described image information being carried out the digital signal processor 130 of denoising Processing, described digital signal processor 130 comprises first via audio input interface 131 for being connected with described microphone 140 and for the second road audio input interface 132 of input noise sampled signal,
Described digital signal processor 130 is connected with described imageing sensor 120, usb 1 50 respectively.
In the present embodiment, the image information that described imageing sensor collects by described camera lens is issued described digital signal processor processes.Described digital signal processor 130 has two-way or above audio input interface, wherein first via audio input interface is for the phonetic entry of camera head microphone, the second road audio input interface is for the sampling of the voice signal that gathers outside noise sampled signal electricity as the output of TV motherboard audio frequency etc., and wherein the noise signal in the external world also can be collected and also import digital signal processor processes into by described microphone.In this enforcement during just by described digital signal processor processes from the first via audio input interface passage handle filter or weaken with audio signal (noise audio signal) identical in the second road audio input interface passage, can effectively avoid like this sound sent because of loudspeaker to be collected by camera MIC again, iterative cycles, caused echo is disturbed.
Further, the described cam device with echo cancellation performance, wherein, described microphone 140 is digital microphone.Described digital signal processor 130 is a dsp chip.
Based on above-described embodiment, the utility model embodiment also provides a kind of television set 200, as shown in Figure 2, described television set 200 comprises TV SKD 210, and be arranged on the CPU 211 on described TV SKD 210, power amplifier 212, and the loudspeaker 213 that are connected with described power amplifier 212, wherein, it also comprises the described cam device with echo cancellation performance of embodiment, the camera body 100 of described cam device is connected with described TV SKD 210 by described usb 1 50, described the second road audio input interface 132 is connected with the voice signal interface of the audio frequency output of described TV SKD 210.
The television set of the present embodiment, the digital signal processor of its cam device has usb function, can be connected with TV SKD and communicate by letter by the USB mouth.The digital signal processor of cam device, have two-way or above audio input interface.Wherein a road is for the sampling of the voice signal of TV motherboard audio frequency output.Another road is for the phonetic entry of cam device microphone.In the present embodiment, USB interface, except data communication, is returned the cam device power supply.The speech input interface of cam device, can be analog audio interface, can be also digital audio interface.
Cam device is connected with the TV main frame, except the USB line, for cam device power supply and data communication, a voice transmission line also will be arranged, for speech sample.
When cam device is worked, the microphone of cam device gathers extraneous audio signal, and first via audio input interface 131 passages of the digital signal processor 130 by are as shown in Figure 2 passed to digital signal processor 130; Simultaneously, the second road audio input interface channel sample of digital signal processor 130 is from the audio signal that outputs to tv speaker of television set.Digital signal processor 130 inside are contrasted the two-way audio signal, from first via audio input interface passage, handle filters or weakens with audio signal identical in the second road audio input interface passage, can effectively avoid like this sound sent because of loudspeaker to be collected by shooting head unit MIC again, iterative cycles, caused echo is disturbed
.
In sum, a kind of cam device and television set with echo cancellation performance provided by the utility model, when camera is worked, the microphone 140 of cam device gathers extraneous audio signal, and the first via audio input interface 131 by digital signal processor 130 is transferred to described digital signal processor 130 and processes; Simultaneously, the second road audio input interface 132 of described digital signal processor 130 is sampled extraneous noise signal as the noise audio signal that outputs to tv speaker from television set.Described digital signal processor 130 inside are contrasted the audio signal of two-way input, from first via audio input interface 131 passages, handle filters or weakens with audio signal identical in the second road audio input interface 132 passages, can effectively avoid like this sound sent because of loudspeaker to be collected by the microphone 140 of shooting head unit again, iterative cycles, caused echo is disturbed, reduced noise, improved signal to noise ratio, provided users with the convenient.
Should be understood that; application of the present utility model is not limited to above-mentioned giving an example; for those of ordinary skills, can be improved according to the above description or convert, all these improvement and conversion all should belong to the protection range of the utility model claims.
Claims (4)
1. the cam device with echo cancellation performance, comprise the camera body, be arranged on camera lens, microphone and USB interface on described camera body, and with described camera lens, be connected for obtain the imageing sensor of image information by described camera lens, it is characterized in that, it also comprises for respectively acoustic information and described image information being carried out the digital signal processor of denoising Processing, and described digital signal processor comprises first via audio input interface for being connected with described microphone and for the second road audio input interface of input noise sampled signal;
Described digital signal processor is connected with described imageing sensor, USB interface respectively.
2. have according to claim 1 the cam device of echo cancellation performance, it is characterized in that, described microphone is digital microphone.
3. have according to claim 1 the cam device of echo cancellation performance, it is characterized in that, described digital signal processor is a dsp chip.
4. a television set, comprise TV SKD, and be arranged on the CPU on described TV SKD, power amplifier, and the loudspeaker that are connected with described power amplifier, it is characterized in that, it also comprises the described cam device with echo cancellation performance of claim 1-3 any one, described cam device is connected with described TV SKD by described USB interface, and described the second road audio input interface is connected with the voice signal interface of described TV SKD audio frequency output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220585685 CN203057371U (en) | 2012-11-08 | 2012-11-08 | Camera device having echo elimination function and television set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220585685 CN203057371U (en) | 2012-11-08 | 2012-11-08 | Camera device having echo elimination function and television set |
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| CN203057371U true CN203057371U (en) | 2013-07-10 |
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| CN 201220585685 Expired - Fee Related CN203057371U (en) | 2012-11-08 | 2012-11-08 | Camera device having echo elimination function and television set |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104796692B (en) * | 2014-01-20 | 2017-07-04 | 宁波舜宇光电信息有限公司 | The echo cancellor method of testing and its system of a kind of tv audio harvester |
| CN108900757A (en) * | 2018-09-04 | 2018-11-27 | 惠州市众兴圆科技有限公司 | A kind of USB camera mould group with sound transducer |
| CN110300318A (en) * | 2019-05-15 | 2019-10-01 | 深圳康佳电子科技有限公司 | A kind of USB terminal interface circuit and USB terminal interface circuit control method |
| CN110366017A (en) * | 2019-06-06 | 2019-10-22 | 深圳康佳电子科技有限公司 | A kind of smart television voice cam device and intelligent TV set |
| CN112562709A (en) * | 2020-11-18 | 2021-03-26 | 珠海全志科技股份有限公司 | Echo cancellation signal processing method and medium |
-
2012
- 2012-11-08 CN CN 201220585685 patent/CN203057371U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104796692B (en) * | 2014-01-20 | 2017-07-04 | 宁波舜宇光电信息有限公司 | The echo cancellor method of testing and its system of a kind of tv audio harvester |
| CN108900757A (en) * | 2018-09-04 | 2018-11-27 | 惠州市众兴圆科技有限公司 | A kind of USB camera mould group with sound transducer |
| CN110300318A (en) * | 2019-05-15 | 2019-10-01 | 深圳康佳电子科技有限公司 | A kind of USB terminal interface circuit and USB terminal interface circuit control method |
| CN110366017A (en) * | 2019-06-06 | 2019-10-22 | 深圳康佳电子科技有限公司 | A kind of smart television voice cam device and intelligent TV set |
| CN112562709A (en) * | 2020-11-18 | 2021-03-26 | 珠海全志科技股份有限公司 | Echo cancellation signal processing method and medium |
| CN112562709B (en) * | 2020-11-18 | 2024-04-19 | 珠海全志科技股份有限公司 | Echo cancellation signal processing method and medium |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20161108 |