CN201781567U - Voice collection device and television with chatting function - Google Patents
Voice collection device and television with chatting function Download PDFInfo
- Publication number
- CN201781567U CN201781567U CN2010205196862U CN201020519686U CN201781567U CN 201781567 U CN201781567 U CN 201781567U CN 2010205196862 U CN2010205196862 U CN 2010205196862U CN 201020519686 U CN201020519686 U CN 201020519686U CN 201781567 U CN201781567 U CN 201781567U
- Authority
- CN
- China
- Prior art keywords
- voice
- signalling channel
- pulse density
- density modulated
- gathering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Circuit For Audible Band Transducer (AREA)
Abstract
The utility model provides a voice collection device and a television with chatting function, which are suitable for the technical field of televisions. The voice collection device comprises a plurality of voice collectors in array arrangement and a voice signal processing unit. In the utility model, the voice collectors and the voice signal processing unit are powered by a power supply of a television, the plurality of voice collectors have favorable voice collection functions so that a user can chat very conveniently without using a wired or wireless microphone and getting close to the voice collectors, moreover, power management is simple, and the cost of the voice collection device is lower than that of the traditional voice collection device adopting the wireless microphone.
Description
Technical field
The utility model belongs to technical field of television sets, the television set that relates in particular to a kind of voice gathering-device and have chat feature.
Background technology
Along with the propelling of national integration of three networks policy with implement, television set also will bring some very positive variations as the recreation terminal of family.A lot of television set producers have all released " chat TV ".
In the chat TV, it is extremely important that voice gatherer such as microphone just become, and most at present chat TVs all have been to use single microphone to carry out voice basically and have collected, and microphone can adopt wire microphone, also can adopt wireless microphone.But, adopt single microphone to carry out voice and collect, can bring some problems:
One, the inconvenient user operation of chatting.The user need hold microphone in the process of Video chat, speak near microphone as far as possible, feels bad, if when a lot of kinsfolk will chat together, it is crowded to capacity more to seem; In addition, use wire microphone, it is pretty troublesome that connecting line seems, and influence the decoration of family, and wireless microphone staccato occurs easily when people's translational speed is fast slightly.
Two, the power management of voice gatherer trouble.Most microphone (comprising wired or wireless microphone) all is active driving, all needs assemble, after chat a period of time, just needs the user to change battery or charges, and uses inconvenience, and not environmental protection.
Three, cost is higher.On the chat TV, adopt wireless microphone at present, carrier modulation is the mode of 2.4GHZ, has become main flow, but the transmitting-receiving two-end of this mode all needs wireless radio frequency modules, and cost is higher.
The utility model content
The purpose of this utility model is to provide a kind of voice gathering-device, is intended to solve existing television set and has inconvenient user chat the power management trouble and the cost problem of higher of operation, voice gatherer.
The utility model is achieved in that a kind of voice gathering-device, and described voice gathering-device comprises:
A plurality of voice gatherers with arrayed; And
Input is connected with the output of described voice gatherer respectively, the voice signal processing unit that the voice signal of described voice gatherer output is handled;
Described a plurality of voice gatherer all is electrically connected with TV set power with the voice signal processing unit.
In the said structure, described voice signal processing unit comprises:
Pulse density modulated signalling channel module, volume/quiet control module, data buffer, usb interface controller, USB interface and processing module;
The input of described pulse density modulated signalling channel module is connected with the output of described a plurality of voice gatherers respectively, and the output of described pulse density modulated signalling channel module connects described processing module by volume/quiet control module, data buffer, usb interface controller and the USB interface that links to each other successively.
In the said structure, described voice gatherer adopts digital microphone, the input of the described pulse density modulated signalling channel of the output termination module of described digital microphone.
In the said structure, described voice gatherer adopts:
The simulation microphone; And
Input is connected with described simulation microphone, the analog to digital conversion circuit of the input of the described pulse density modulated signalling channel of output termination module.
In the said structure, described digital microphone adopts the digital microphone chip, described pulse density modulated signalling channel module adopts pulse density modulated signalling channel chip, described digital microphone chip comprises power end, the ground end, signal output part and clock end, described pulse density modulated signalling channel chip comprises signal input part and clock end, the power supply termination power of described digital microphone chip, the ground end ground connection of described digital microphone chip, the signal output part of described digital microphone chip and clock end connect the signal input part and the clock end of described pulse density modulated signalling channel chip respectively by resistance.
In the said structure, described processing module adopts dsp processor.
Another purpose of the present utility model is to provide a kind of television set with chat feature, and described television set with chat feature comprises above-mentioned voice gathering-device.
In the utility model, this voice gathering-device comprises with a plurality of voice gatherers of arrayed and the voice signal processing unit that voice signal is handled, voice gatherer and voice signal processing unit are powered by TV set power, a plurality of voice gatherers have good voice collecting function, therefore the user has given up wired and wireless microphone fully, need not adjacent voice gatherer, just can chat, very convenient, and power management is simple, compared with former employing wireless microphone, cost is also lower.
Description of drawings
Fig. 1 is the structure chart of the television set with chat feature that provides of the utility model embodiment;
Fig. 2 is the structure chart of the voice gathering-device that provides of the utility model embodiment;
Fig. 3 is the exemplary circuit figure of the voice gathering-device that provides of the utility model embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Fig. 1 shows the structure of the television set with chat feature that the utility model embodiment provides, and Fig. 2 shows the structure of the voice gathering-device that the utility model embodiment provides, and for convenience of explanation, only shows the part relevant with the utility model.
A kind of television set 1 with chat feature comprises the voice gathering-device, the voice gathering-device comprises a plurality of voice gatherers 100 and the voice signal processing unit 200 with arrayed, a plurality of voice gatherers 100 can be arranged on the shell of television set, the input of voice signal processing unit 200 is connected with the output of voice gatherer 100 respectively, voice signal to 100 outputs of voice gatherer is handled, and a plurality of voice gatherers 100 all are electrically connected with TV set power with voice signal processing unit 200.
A plurality of voice gatherers 100 can be combined into array voice gatherer, carry out pickup by 100 pairs of sources of sound of a plurality of voice gatherers, the beam pattern main lobe that array the is formed voice that aim at the mark, " zero point " points to interference source to suppress interference signal, thereby obtain the target voice as much as possible, wherein putting position, sound source incidence angle and the sample frequency of the spacing of beam direction and wave beam main lobe width and voice gatherer, voice gatherer number, voice gatherer are closely related.Need manual adjustment voice gatherer directive property problem when use individual voice gatherer has not only been eliminated in the formation of wave beam, and the signal to noise ratio of output voice is increased substantially, also can obtain high-quality voice thereby need not manual intervention.
As the utility model one embodiment, voice signal processing unit 200 comprises:
Pulse density modulated signalling channel module 201, volume/quiet control module 202, data buffer 203, usb interface controller 204, USB interface 205 and processing module 206;
The input of pulse density modulated signalling channel module 201 is connected with the output of a plurality of voice gatherers 100 respectively, and the output of pulse density modulated signalling channel module 201 connects processing module 206 by volume/quiet control module 202, data buffer 203, usb interface controller 204 and the USB interface 205 that links to each other successively.
As the utility model one embodiment, voice gatherer 100 adopts digital microphone, the input of the output termination pulse density modulated signalling channel module 201 of digital microphone.
As the utility model one embodiment, voice gatherer 100 adopts:
The simulation microphone; And
Input is connected with the simulation microphone, the analog to digital conversion circuit of the input of output termination pulse density modulated signalling channel module 201.
Digital microphone is compared with the simulation microphone, has higher signal to noise ratio, and sensitivity is concentrated, the high wet performance of high temperature resistance is strong, high antidetonation, and high sensitivity reaches advantages such as stable, and, performance is preferably arranged all in anti-RF interference, EMI and the anti-transmission attenuation because digital microphone is output as digital signal.
Pulse density modulated signalling channel module 201 functions: digital microphone is output as PDM signal (being the pulse density modulated signal).PDM is a kind of modulator approach that analog signal is provided in digital field.In the PDM signal, logical one is represented individual pulse, and logical zero represents there is not pulse.Usually logical one and logical zero are discontinuous, and logical one relatively is evenly distributed in each modulation signal in the cycle.Wherein individual pulse is not represented amplitude, and the density of a series of pulses is just corresponding to the amplitude in the analog signal.The PDM signal of being made up of " 1 " is positive voltage corresponding to amplitude fully; The PDM signal of being made up of " 0 " is then corresponding to the voltage of negative amplitude fully; The signal of alternately being made up of " 1 " and " 0 " is then corresponding to the voltage of 0 amplitude.
Volume/quiet control module 202 functions: because the volume that everyone speaks has bigger difference, and environment is different, and the distance of talker and microphone is also different or the like, and the speech volume that can cause microphone to receive is widely different.In order to make people can regulate the size of volume as required freely, volume/quiet control module 202 need be set in signalling channel.
Data buffer 203 functions: in having the television set of chat feature, in transmission of speech signals, often need to transmit the picture signal of camera, for this picture signal and voice signal are passed to processing module 206 simultaneously, need be in system design data buffer 203.
Usb interface controller 204 functions: as the utility model one embodiment, usb interface controller 204 adopts the specification protocol of USB2.0, data transmission bauds reaches as high as 480Mbps, meets the television set while transmission of video with chat feature, the demand of audio frequency.Can be in system, design usb interface controller 204, the protocol specification that makes the vision signal obtained and voice signal meet USB2.0, the unified again processing module 206 that is transferred to.
Processing module 206 functions: as the utility model one embodiment, processing module 206 adopts dsp processor, and dsp processor can be handled voice signal according to demand accordingly, as voice signal is carried out encoding and decoding or the like.
Fig. 3 shows the exemplary circuit structure of the voice gathering-device that the utility model embodiment provides, and for convenience of explanation, only shows the part relevant with the utility model.
The voice gathering-device comprises two digital microphones, as the utility model one embodiment, two digital microphones adopt digital microphone chip U1 and digital microphone chip U2 respectively, digital microphone chip U1 and digital microphone chip U2 all adopt the AKU2004 chip, pulse density modulated signalling channel module 201 adopts pulse density modulated signalling channel chip U3, pulse density modulated signalling channel chip U3 adopts the VC0347 chip, digital microphone chip U1 and digital microphone chip U2 comprise power end VCC respectively, ground end GND, signal output part D_L/R and clock end CLK, pulse density modulated signalling channel chip U3 comprises signal input part PDM_L, signal input part PDM_R and clock end PDM_CLK, the power end VCC of digital microphone chip U1 and digital microphone chip U2 connects power supply, the ground end GND ground connection of digital microphone chip U1 and digital microphone chip U2, the signal output part D_L/R of digital microphone chip U1 and clock end CLK meet signal input part PDM_L and the clock end PDM_CLK of pulse density modulated signalling channel chip U3 respectively by resistance R 1 and resistance R 3, the signal output part D_L/R of digital microphone chip U2 and clock end CLK meet signal input part PDM_R and the clock end PDM_CLK of pulse density modulated signalling channel chip U3 respectively by resistance R 2 and resistance R 3.
In the utility model embodiment, this voice gathering-device comprises with a plurality of voice gatherers of arrayed and the voice signal processing unit that voice signal is handled, voice gatherer and voice signal processing unit are powered by TV set power, a plurality of voice gatherers have good voice collecting function, therefore the user has given up wired and wireless microphone fully, need not adjacent voice gatherer, just can chat, very convenient, and power management is simple, compared with former employing wireless microphone, cost is also lower.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (7)
1. a voice gathering-device is characterized in that, described voice gathering-device comprises:
A plurality of voice gatherers with arrayed; And
Input is connected with the output of described voice gatherer respectively, the voice signal processing unit that the voice signal of described voice gatherer output is handled;
Described a plurality of voice gatherer all is electrically connected with TV set power with the voice signal processing unit.
2. voice gathering-device as claimed in claim 1 is characterized in that, described voice signal processing unit comprises:
Pulse density modulated signalling channel module, volume/quiet control module, data buffer, usb interface controller, USB interface and processing module;
The input of described pulse density modulated signalling channel module is connected with the output of described a plurality of voice gatherers respectively, and the output of described pulse density modulated signalling channel module connects described processing module by volume/quiet control module, data buffer, usb interface controller and the USB interface that links to each other successively.
3. voice gathering-device as claimed in claim 2 is characterized in that, described voice gatherer adopts digital microphone, the input of the described pulse density modulated signalling channel of the output termination module of described digital microphone.
4. voice gathering-device as claimed in claim 2 is characterized in that, described voice gatherer adopts:
The simulation microphone; And
Input is connected with described simulation microphone, the analog to digital conversion circuit of the input of the described pulse density modulated signalling channel of output termination module.
5. voice gathering-device as claimed in claim 3, it is characterized in that, described digital microphone adopts the digital microphone chip, described pulse density modulated signalling channel module adopts pulse density modulated signalling channel chip, described digital microphone chip comprises power end, the ground end, signal output part and clock end, described pulse density modulated signalling channel chip comprises signal input part and clock end, the power supply termination power of described digital microphone chip, the ground end ground connection of described digital microphone chip, the signal output part of described digital microphone chip and clock end connect the signal input part and the clock end of described pulse density modulated signalling channel chip respectively by resistance.
6. voice gathering-device as claimed in claim 2 is characterized in that, described processing module adopts dsp processor.
7. the television set with chat feature is characterized in that, described television set comprises each described voice gathering-device as claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205196862U CN201781567U (en) | 2010-09-07 | 2010-09-07 | Voice collection device and television with chatting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205196862U CN201781567U (en) | 2010-09-07 | 2010-09-07 | Voice collection device and television with chatting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201781567U true CN201781567U (en) | 2011-03-30 |
Family
ID=43794766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205196862U Expired - Lifetime CN201781567U (en) | 2010-09-07 | 2010-09-07 | Voice collection device and television with chatting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201781567U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104320738A (en) * | 2014-09-29 | 2015-01-28 | 宇龙计算机通信科技(深圳)有限公司 | Digital microphone circuit |
| CN106664142A (en) * | 2014-05-13 | 2017-05-10 | 美国思睿逻辑有限公司 | Systems and methods for reducing digital interference of external signals |
| CN109788398A (en) * | 2017-11-10 | 2019-05-21 | 阿里巴巴集团控股有限公司 | Sound pick up equipment for far field voice |
-
2010
- 2010-09-07 CN CN2010205196862U patent/CN201781567U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106664142A (en) * | 2014-05-13 | 2017-05-10 | 美国思睿逻辑有限公司 | Systems and methods for reducing digital interference of external signals |
| CN106664142B (en) * | 2014-05-13 | 2020-04-10 | 美国思睿逻辑有限公司 | System and method for reducing digital interference of external signals |
| CN104320738A (en) * | 2014-09-29 | 2015-01-28 | 宇龙计算机通信科技(深圳)有限公司 | Digital microphone circuit |
| CN109788398A (en) * | 2017-11-10 | 2019-05-21 | 阿里巴巴集团控股有限公司 | Sound pick up equipment for far field voice |
| US10923138B2 (en) | 2017-11-10 | 2021-02-16 | Alibaba Group Holding Limited | Sound collection apparatus for far-field voice |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203912093U (en) | Intercom conversion device and building intercom system | |
| CN201781567U (en) | Voice collection device and television with chatting function | |
| CN202383623U (en) | Laser remote-control pen with wireless microphone | |
| CN201430673Y (en) | Microphone, digital audio signal receiving device and karaoke system | |
| CN102568188A (en) | Infrared remote control device and method for intelligent host | |
| CN201608898U (en) | Microphone wireless sound transmission system | |
| CN202502615U (en) | Infrared remote control device for smart host | |
| CN204258904U (en) | A kind of multifunctional modem | |
| CN106411411A (en) | Infrared voice and data transmission communication system | |
| CN201134803Y (en) | Bluetooth wireless microphone | |
| CN105515682B (en) | The method and system realized transmitting using earphone interface, receive ultrasonic wave | |
| CN202231716U (en) | Power line carrier communication structure | |
| CN201928374U (en) | Camera | |
| CN207529651U (en) | Digital wireless audio multicast device applied to karaoke OK system | |
| CN202524481U (en) | Micro multi-channel wireless image audio transmission system | |
| CN206672626U (en) | A kind of special high-fidelity Wireless pickup of musical instrument | |
| CN202998445U (en) | Pickup system | |
| CN1750649A (en) | Wired and wireless two-in-one camera head | |
| CN203933733U (en) | The interactive communication device of a kind of remote sound | |
| CN202513985U (en) | Signal relay station | |
| CN204258818U (en) | Utilize the device of loud speaker communication | |
| CN204068984U (en) | Sonic transmissions system and acoustic receiver device thereof | |
| CN206850769U (en) | Audio transmission system based on power line | |
| CN205320173U (en) | Convenient video acquisition equipment of intelligence | |
| CN110366017A (en) | A kind of smart television voice cam device and intelligent TV set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110330 |
|
| CX01 | Expiry of patent term |