CN102065231A - Multipath data fusion device, realization method thereof and multipath audio data processing system - Google Patents
Multipath data fusion device, realization method thereof and multipath audio data processing system Download PDFInfo
- Publication number
- CN102065231A CN102065231A CN201010559340XA CN201010559340A CN102065231A CN 102065231 A CN102065231 A CN 102065231A CN 201010559340X A CN201010559340X A CN 201010559340XA CN 201010559340 A CN201010559340 A CN 201010559340A CN 102065231 A CN102065231 A CN 102065231A
- Authority
- CN
- China
- Prior art keywords
- data
- frequency
- audio
- digital audio
- data buffer
- 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.)
- Granted
Links
Images
Landscapes
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a multipath data fusion device, a realization method thereof and a multipath audio data processing system, wherein the method comprises the following steps of: in each sampling period, simultaneously receiving N paths of digital audio data and respectively distributing the digital audio data received in the first half period and the digital audio data received in the second half period to a first data buffer and a second data buffer for storage, wherein N is not less than 2; fusing and packing all digital audio data distributed to the first data buffer and the second data buffer in the current sampling period; and sequentially transmitting the fused and packed digital audio data stored in the first data buffer and the second data buffer to an audio and video processor. The invention realizes no-delay and no-loss transmission and processing of the audio data.
Description
Technical field
The invention belongs to protection and monitor field, relate to FPGA/CPLD logical design, multimedia technology and audio signal processing technique, particularly a kind of multichannel data fusing device and its implementation, multi-path audio-frequency data processing system.
Background technology
Along with the progressively raising of social security environmental requirement, more and more to the demand of safety monitoring equipment both at home and abroad, also more and more stricter to the control of cost, thus multichannel watch-dog becomes a kind of development trend.
Typical safety monitoring equipment all can comprise video acquisition and audio collection.The signal of audio collection has two kinds: sound accompaniment and voice.
Sound accompaniment is the background sound collection at video monitoring scene, and sound accompaniment stream is continuous uninterrupted.Must keep synchronously between all sound channels, guarantee not have time-delay or time-delay in tolerance interval.In addition, each road sound channel all will keep lip synchronous with corresponding video channel, and promptly the image of seeing after the client decoding will keep synchronously tangible delay being arranged with the sound of hearing.
Voice are used for client and the on-the-spot telecommunication of monitoring, and voice flow is interrupted, but the transmission of voice must be in real time, and time-delay will be in tolerance interval.
In the safety monitoring terminal equipment of main flow, voice have only one the tunnel at present, and sound accompaniment has 1 the tunnel, the 2 tunnel, the 4 tunnel, the 8 tunnel, the 16 tunnel not wait.The sound accompaniment and the voice of input all are analog quantitys, and they must convert thereof into digital audio, otherwise audio video processor can't be handled at first through the processing of audio frequency analog to digital converter (ADC).ADC can become the multi-channel analog audio conversion one way word audio frequency, but the accessible analog channel number of ADC is limited, when voice-grade channel is many, must use multi-disc ADC, will produce the multi-path digital audio frequency like this.
Audio video processor commonly used, audio interface quantity is limited, has only an interface mostly.If in multi-path digital audio frequency when input, arranged simultaneously, guarantee voice-grade channel synchronously, not the losing of voice data, it is helpless only relying on audio video processor, must add control circuit.
The control circuit that present solution multichannel voice frequency is imported simultaneously often adopts the multi-channel switcher that comprises buffer memory shown in Figure 1.In Fig. 1, the digital audio of ADC output at first deposits buffer memory separately in, by appointment in proper order, by the mode that multichannel is switched, the voice data in each buffer memory is sent into audio video processor respectively then.
The major defect that control circuit shown in Figure 1 exists comprises: poor synchronization, and need to add extra buffer memory and cause cost to increase, audio video processor is required high.These shortcomings show obviously more at port number more for a long time.Multi-channel switcher is sent each way word audio frequency into audio video processor in order, and that sends at first is processed at first, down arranges successively then.Though do not have loss of data, all time-delay can be arranged between each passage, send into the time-delay maximum of audio video processor the latest.In addition, if sound accompaniment has been used different ADC with voice, digital audio format just may there are differences, such as the conversion accuracy difference.For this species diversity, need in audio video processor, add extra treatment step, not only take more resources, audio video processor is also had higher requirement.Generally speaking, this control circuit is unsatisfactory, and applicability is not strong.
Summary of the invention
The object of the present invention is to provide a kind of multichannel data fusing device and its implementation, realize with less Resources Consumption multi-path digital voice data fusion becoming a way word voice data.
Another object of the present invention is to provide a kind of multi-path audio-frequency data processing system, realize not having delay, not having the audio data transmission and the processing of losing.
The embodiment of the invention is achieved in that a kind of multichannel data fusing device, comprising: data buffer zone, input module, data fusion packetization module, output module and input and output fit module; Wherein,
Described data buffer zone comprises first data buffer zone and second data buffer zone, is used to store digital audio-frequency data;
Described input module, be used for receiving simultaneously the digital audio-frequency data of N road, and will when received digital audio-frequency data of preceding half period in each sampling period and later half cycle etc., be assigned in the different data buffer zones from the N with identical sample rate audio frequency analog to digital converter; Described N 〉=2;
Described data fusion packetization module is used for when input module carries out storage, and its all digital audio-frequency datas that obtain in each sampling period are merged packing;
Described output module is used for described first data buffer zone and second data buffer zone are sent to audio video processor through the digital audio-frequency data that merges packing;
Described input and output fit module is used for the preceding half period in each sampling period, and the control input module is assigned to the storage of first data buffer area with digital audio-frequency data, and the control output module is exported the digital audio-frequency data of storing in second data buffer area; In the later half cycle in each sampling period, the control input module is assigned to the storage of second data buffer area with digital audio-frequency data, and the control output module is exported the digital audio-frequency data of storing in first data buffer area.
Wherein, the data transfer rate of described output module be input module data transfer rate N doubly.
Wherein, size S is identical in the space of described first data buffer zone and second data buffer zone, and S=(D
Max* N)/2; Wherein, D
MaxBe the maximum data width in N the digital audio-frequency data of described different audio frequency analog to digital converter conversion outputs.
Wherein, described data fusion packetization module also was used for before all digital audio-frequency datas are merged packing, and the form of this digital audio-frequency data is unified to handle.
A kind of multichannel voice frequency is fused to the implementation method of SCVF single channel voice frequency, comprises: in each sampling period,
Receive N way word voice data simultaneously, and the digital audio-frequency data that the preceding half period is received and received digital audio-frequency data of later half cycle are assigned to first data buffer zone and the storage of second data buffer zone respectively; Described N 〉=2;
All digital audio-frequency datas that the current sampling period is assigned to first data buffer zone and second data buffer zone merge and pack;
The digital audio-frequency data through fusion and packing that is stored in first data buffer zone and second data buffer zone is sent to audio video processor in order.
Wherein, the described method that all digital audio-frequency datas are merged is: in the digital audio-frequency data storage, the initial space storage synchronizing information in first data buffer zone is filled invalid data at the ending remaining space of second data buffer zone.
Wherein, the described step that digital audio-frequency data is sent to audio video processor in order further comprises: the preceding half period in each sampling period, the digital audio-frequency data that is stored in second data buffer zone is sent to audio video processor; In the later half cycle in each sampling period, the audio, video data that is stored in first data buffer zone is sent to audio video processor.
Wherein, described the multi-path digital voice data is assigned to the storage of first data buffer zone and second data buffer zone before, the form of each way word voice data is unified to handle.
Said method also comprises: after described audio video processor is received digital audio-frequency data, remove the synchronizing information of stem and the invalid data of afterbody, obtain decomposing behind the significant digits voice data wherein, corresponding according to storage order with every road analogue audio frequency passage.
A kind of multi-path audio-frequency data processing system, comprise that being used for the multi-channel analog audio conversion is the audio frequency analog to digital converter of a way word audio frequency and the audio video processor that digital audio-frequency data is handled, also comprise aforesaid multichannel data fusing device, be connected between described audio frequency analog to digital converter and the audio video processor, be used to receive N way word voice data, and this N way word voice data merged send to audio video processor after being packaged into the single channel digital audio-frequency data from N audio frequency analog to digital converter.
The embodiment of the invention compared with prior art, beneficial effect is:
1) multichannel data fusing device proposed by the invention only needs the middle-size and small-size FPGA/CPLD of a slice to realize, and is simple and reliable, with low cost.
2) the present invention is when realization is fused into the single channel digital audio-frequency data with the multi-path digital voice data, overcome the difference between different ADC dateout forms, realized the synchronous requirement between all sound channels, and the lip between sound accompaniment and the video is synchronous, has guaranteed the real-time of voice transfer.
3) has stronger autgmentability, the port number of accessible digital audio-frequency data is unrestricted, only need to enlarge the space of data buffer area, do not need to add extra treatment circuit or adopt complicated processing method, reduced requirement the audio interface and the disposal ability thereof of audio video processor.
Description of drawings
Fig. 1 is the control circuit schematic diagram that comprises buffer memory and multi-channel switch.
Fig. 2 is the structural representation of multi-path audio-frequency data processing system proposed by the invention.
Fig. 3 is the schematic diagram that is assigned to the data buffer zone in the embodiment of the invention during with each way word audio frequency etc.
Fig. 4 is the structural representation of multi-path audio-frequency data processing system in the embodiment of the invention.
Fig. 5 is ADC in the embodiment of the invention
1With ADC
2The digital audio format schematic diagram of output.
Fig. 6 is through merging and the frame data format of packing in the embodiment of the invention.
Fig. 7 is that input in the embodiment of the invention, output module operation cooperate schematic diagram.
Embodiment
See also Fig. 2, multi-path audio-frequency data processing system proposed by the invention comprises: ADC
1~ ADC
N, multichannel data fusing device and audio video processor; ADC
1, ADC
NAll in order to the multi-channel analog audio conversion is become a way word audio frequency (as figure, ADC
1J road analogue audio frequency is converted to 1 way word audio frequency, ADC
2K road analogue audio frequency is converted to 1 way word audio frequency, ADC
NL road analogue audio frequency is converted to 1 way word audio frequency); Multichannel data fusing device and ADC
1~ ADC
N, audio video processor connects respectively, further comprises data buffer zone, input module, data fusion packetization module, output module and input and output fit module, is used to receive ADC
1~ ADC
NThe way of the N altogether word voice data of output and it is fused into the single channel digital audio-frequency data after send to audio video processor.
Wherein, input module has a plurality of data channel, and output module only has a data passage, for the continuity (being that the data of gathering in the unit interval sent in the unit interval) that guarantees transfer of data, the data transfer rate of output module must be N times (N represents the port number of digital audio) of input module.
The data buffer zone comprises data buffer zone 1 and data buffer zone 2, has identical space size S, and S=(D
Max* N)/2; Wherein, D
MaxBe the maximum data width in N the digital audio-frequency data of audio frequency analog to digital converter conversion output.
Said system with the implementation method that multi-path audio-frequency data is fused into the SCVF single channel voice frequency data is:
The first step: input module receives each way word voice data simultaneously, according to sampling clock, is unit with the sampling period, is assigned to different data buffer zones during with each way word voice data of sampling in the unit interval etc.Distribute schematic diagram during waiting as shown in Figure 3, in each sampling period, each way word voice data that the preceding half period is received is assigned to storage in the data buffer zone 1, and each way word voice data that the later half cycle is received is assigned to storage in the data buffer zone 2.
Second step: the voice data that the current sampling period is assigned to the data buffer zone merges and packs.If there is the inconsistent situation of digital audio format, need before the storage to handle earlier, with uniform format.Data fusion method is: in storage, and 1 the initial space storage synchronizing information in the data buffer zone, 2 ending remaining space is filled with invalid data in the data buffer zone, and its complementary space is the effective voice data of storage all.Like this, data buffer zone 1 and data buffer zone 2 data of being stored are added up and have just been constituted complete frame data.
The 3rd step: output module sends the digital audio-frequency data that merges after packing, according to sampling clock, the data of storing in two data buffering areas are sent into audio video processor in order, promptly, the digital audio-frequency data that is stored in second data buffer zone is sent to audio video processor in the preceding half period in each sampling period; In the later half cycle in each sampling period, the audio, video data that is stored in first data buffer zone is sent to audio video processor.
In said process, input module and output module are worked simultaneously, and when input module received digital audio-frequency data, output module was also sending digital audio-frequency data, but both have used different data buffer zones.Under the control of sampling clock, input module and output module are used alternatingly data buffer zone 1 and data buffer zone 2: in the preceding half period in each sampling period, and input module usage data buffer district 1, output module usage data buffer district 2; In the later half cycle in each sampling period, input module usage data buffer district 2, output module usage data buffer district 1.In this process, input module and output module under the control of sampling clock according to beat, the switching that cooperatively interacts, not only guaranteed input audio stream and output audio stream continuously, also realized not pausing, transmit with losing.
The 4th step: audio video processor is after receiving digital audio-frequency data, judge the beginning of each frame by the identification synchronizing information, remove the synchronizing information and the invalid data of head and the tail part then, the significant digits voice data that obtains is decomposed, corresponding according to storage order with each road analogue audio frequency passage.
In order to make purpose of the present invention, technical scheme and advantage clearer,, multi-path audio-frequency data processing system of the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
In the present embodiment, the structure of multi-path audio-frequency data processing system has been used two ADC:ADC as shown in Figure 4 altogether
1With ADC
2, their accessible maximum analog voice-grade channels are counted difference, and sampling precision is also different, but the multi-channel analog audio conversion can both be become the I of a road sign standard
2The output of S format digital audio frequency; ADC
1Be used to handle sound accompaniment 1 ~ sound accompaniment 4, ADC
2Be used for processed voice, thereby produce the output of two-way digital audio: digital audio 1 and digital audio 2.
I
2S is a kind of audio format that is used to transmit stereophony, and highest order during transfer of data (MSB) is preceding, lowest order (LSB) after.In each sampling period, the corresponding L channel of the digital audio of preceding half period, the corresponding R channel of the digital audio in back cycle.
Fig. 5 is the data format of digital audio 1 and digital audio 2.As shown in Figure 5, ADC
1With ADC
2The digital audio format of output is inconsistent.ADC
14 road sound accompaniments are converted to the digital quantity of 16-bit, ADC respectively
2With 1 tunnel speech conversion is the digital quantity of 24-bit.ADC
2Can realize the analog-to-digital conversion of 2 road analogue audio frequencies simultaneously, but only use L channel in the present embodiment, so the digital audio of R channel correspondence is hash entirely as phonetic entry.In addition, because ADC
1The overall width of the digital quantity of output is 64bit, ADC
2The digital quantity of output is 24 bit, then ADC
1And ADC
2The maximum data width D of 2 way word audio frequency of output
Max=64bit is according to formula S=(D
Max* N)/2 can draw the space size S=64 bit of data buffer zone 1 and data buffer zone 2.
In the present embodiment, the course of work of multi-path audio-frequency data processing system is as follows.
Input module receives ADC simultaneously
1With ADC
2 Digital audio 1 and the digital audio 2 exported respectively, they are assigned to two data buffering areas according to left and right sound channels: digital audio 1 is deposited in data buffer zone 1 with the L channel data of digital audio 2, the right data of digital audio 1 is deposited in data buffer zone 2, and the right data of digital audio 2 is all abandoned.
Because digital audio 1 is inconsistent with the form of digital audio 2, thereby before storage, need the digital audio 1 and the form of digital audio 2 are unified to handle: because ADC
1Export the digital quantity of 4 road 16bit, ADC
2Export the digital quantity of 1 road 24bit, so in the present embodiment according to the principle that the minority is subordinate to the majority, each way word audio format unification is 16bit, promptly when depositing digital audio 2 in data buffer zone 1, only intercept the 16-bit of front, abandon the 8-bit of back, the loss that intercepting causes can compensate when client is decoded.
When carrying out storage, all data of storage in data buffer zone 1 and the data buffer zone 2 are merged and packs: synchronizing information is stored in the 16-bit space of 1 original position in the data buffer zone, 2 remaining space uses invalid data to fill in the data buffer zone, so far promptly finish of the data fusion and the packing of two-way digital audio a sampling period, and it has been constituted a complete frame: Fig. 6 is through merging the frame data format with packing, as shown in Figure 6, the total length of every frame data is 128-bit, with the synchronizing information of 16-bit as initial, as ending, the centre is effective voice data of 80-bit with the invalid data of 32-bit.
Afterwards, output module is sent every frame data into audio video processor.Fig. 7 is that the operation of input module and output module in the said process cooperates schematic diagram, as shown in Figure 7, data buffer zone 1 alternately cooperates with data buffer zone 2, and every half period changes a data flow, thereby the uninterrupted continuously and nothing that has guaranteed input traffic and output stream is lost.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a multichannel data fusing device is characterized in that, this device comprises: data buffer zone, input module, data fusion packetization module, output module and input and output fit module; Wherein,
Described data buffer zone comprises first data buffer zone and second data buffer zone, is used to store digital audio-frequency data;
Described input module, be used for receiving simultaneously the digital audio-frequency data of N road, and will when received digital audio-frequency data of preceding half period in each sampling period and later half cycle etc., be assigned in the different data buffer zones from the N with identical sample rate audio frequency analog to digital converter; Described N 〉=2;
Described data fusion packetization module is used for when input module carries out storage, and its all digital audio-frequency datas that obtain in each sampling period are merged packing;
Described output module is used for described first data buffer zone and second data buffer zone are sent to audio video processor through the digital audio-frequency data that merges packing;
Described input and output fit module is used for the preceding half period in each sampling period, and the control input module is assigned to the storage of first data buffer area with digital audio-frequency data, and the control output module is exported the digital audio-frequency data of storing in second data buffer area; In the later half cycle in each sampling period, the control input module is assigned to the storage of second data buffer area with digital audio-frequency data, and the control output module is exported the digital audio-frequency data of storing in first data buffer area.
2. multichannel voice frequency fusing device as claimed in claim 1 is characterized in that, the data transfer rate of described output module be input module data transfer rate N doubly.
3. multichannel voice frequency fusing device as claimed in claim 2 is characterized in that, the space size S of described first data buffer zone and second data buffer zone is identical, and S=(D
Max* N)/2; Wherein, D
MaxBe the maximum data width in N the digital audio-frequency data of described different audio frequency analog to digital converter conversion outputs.
4. as claim 2 or 3 described multichannel voice frequency fusing devices, it is characterized in that described data fusion packetization module also was used for before all digital audio-frequency datas are merged packing, the form of each way word voice data is unified to handle.
5. one kind is fused to the implementation method of SCVF single channel voice frequency with multichannel voice frequency, it is characterized in that this method comprises: in each sampling period,
Receive N way word voice data simultaneously, and the digital audio-frequency data that the preceding half period is received and received digital audio-frequency data of later half cycle are assigned to first data buffer zone and the storage of second data buffer zone respectively; Described N 〉=2;
All digital audio-frequency datas that the current sampling period is assigned to first data buffer zone and second data buffer zone merge and pack;
The digital audio-frequency data through fusion and packing that is stored in first data buffer zone and second data buffer zone is sent to audio video processor in order.
6. the implementation method that multichannel voice frequency is fused to SCVF single channel voice frequency as claimed in claim 5, it is characterized in that, the described method that all digital audio-frequency datas are merged is: in the digital audio-frequency data storage, initial space storage synchronizing information in first data buffer zone is filled invalid data at the ending remaining space of second data buffer zone.
7. the implementation method that multichannel voice frequency is fused to SCVF single channel voice frequency as claimed in claim 6, it is characterized in that, the described step that digital audio-frequency data is sent to audio video processor in order further comprises: the preceding half period in each sampling period, the digital audio-frequency data that is stored in second data buffer zone is sent to audio video processor; In the later half cycle in each sampling period, the audio, video data that is stored in first data buffer zone is sent to audio video processor.
8. as the arbitrary described implementation method that multichannel voice frequency is fused to SCVF single channel voice frequency of claim 5 to 7, it is characterized in that, described the multi-path digital voice data is assigned to the storage of first data buffer zone and second data buffer zone before, the form of this digital audio-frequency data is unified to handle.
9. the implementation method that multichannel voice frequency is fused to SCVF single channel voice frequency as claimed in claim 6, it is characterized in that, this method also comprises: after described audio video processor is received digital audio-frequency data, remove the synchronizing information of stem and the invalid data of afterbody, obtain decomposing behind the significant digits voice data wherein, corresponding according to storage order with every road analogue audio frequency passage.
10. multi-path audio-frequency data processing system, comprise that being used for the multi-channel analog audio conversion is the audio frequency analog to digital converter of a way word audio frequency and the audio video processor that digital audio-frequency data is handled, it is characterized in that, also comprise multichannel data fusing device as claimed in claim 1, be connected between described audio frequency analog to digital converter and the audio video processor, be used to receive N way word voice data, and this N way word voice data merged send to audio video processor after being packaged into the single channel digital audio-frequency data from N audio frequency analog to digital converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010559340XA CN102065231B (en) | 2010-11-26 | 2010-11-26 | Multipath data fusion device, realization method thereof and multipath audio data processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010559340XA CN102065231B (en) | 2010-11-26 | 2010-11-26 | Multipath data fusion device, realization method thereof and multipath audio data processing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102065231A true CN102065231A (en) | 2011-05-18 |
| CN102065231B CN102065231B (en) | 2013-04-17 |
Family
ID=44000312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010559340XA Active CN102065231B (en) | 2010-11-26 | 2010-11-26 | Multipath data fusion device, realization method thereof and multipath audio data processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102065231B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105261365A (en) * | 2015-09-15 | 2016-01-20 | 北京云知声信息技术有限公司 | Audio output method and device |
| CN105635909A (en) * | 2015-12-23 | 2016-06-01 | 深圳市东微智能科技有限公司 | FPGA (Field Programmable Gate Array) large-scale audio channel routing matrix and routing method thereof |
| CN106488357A (en) * | 2015-09-01 | 2017-03-08 | 北京视联动力国际信息技术有限公司 | A kind of method and apparatus of COBBAIF conversion |
| CN106782562A (en) * | 2016-12-20 | 2017-05-31 | Tcl通力电子（惠州）有限公司 | Audio-frequency processing method, apparatus and system |
| CN106875952A (en) * | 2016-12-23 | 2017-06-20 | 伟乐视讯科技股份有限公司 | The soft encoding mechanism of MCVF multichannel voice frequency based on FPGA embedded systems |
| CN107040832A (en) * | 2017-04-22 | 2017-08-11 | 广州市比丽普电子有限公司 | A kind of handheld terminal formula microphone system based on Bluetooth technology |
| CN110400570A (en) * | 2019-06-24 | 2019-11-01 | 成都航天通信设备有限责任公司 | A kind of multi-path digital audio mixing implementation method |
| CN111010652A (en) * | 2019-12-19 | 2020-04-14 | 杭州叙简科技股份有限公司 | Audio signal double-link backup method |
| CN111835991A (en) * | 2019-04-17 | 2020-10-27 | 鸿富锦精密工业(武汉)有限公司 | Display data channel circuit |
| CN112188610A (en) * | 2020-08-18 | 2021-01-05 | 天津七所精密机电技术有限公司 | Burst intensive data fusion processing and high-precision synchronization device and method |
| CN113741311A (en) * | 2021-09-16 | 2021-12-03 | 深圳市软赢科技有限公司 | Bus control system and method with sub-period high-frequency processing function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6311161B1 (en) * | 1999-03-22 | 2001-10-30 | International Business Machines Corporation | System and method for merging multiple audio streams |
| CN101075183A (en) * | 2007-06-29 | 2007-11-21 | 北京中星微电子有限公司 | Multi-path audio-frequency data processing system |
| CN101516015A (en) * | 2008-12-31 | 2009-08-26 | 广东威创视讯科技股份有限公司 | Multi-path video data acquiring, processing and transmitting device and method thereof |
| CN101667845A (en) * | 2008-09-05 | 2010-03-10 | 中兴通讯股份有限公司 | Self-adapting incorporative method and self-adapting incorporative method system for multi-channel signals |
| CN101702305A (en) * | 2009-10-23 | 2010-05-05 | 广东威创视讯科技股份有限公司 | Method and device for converting, transmitting and processing multi-screen images |
-
2010
- 2010-11-26 CN CN201010559340XA patent/CN102065231B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6311161B1 (en) * | 1999-03-22 | 2001-10-30 | International Business Machines Corporation | System and method for merging multiple audio streams |
| CN101075183A (en) * | 2007-06-29 | 2007-11-21 | 北京中星微电子有限公司 | Multi-path audio-frequency data processing system |
| CN101667845A (en) * | 2008-09-05 | 2010-03-10 | 中兴通讯股份有限公司 | Self-adapting incorporative method and self-adapting incorporative method system for multi-channel signals |
| CN101516015A (en) * | 2008-12-31 | 2009-08-26 | 广东威创视讯科技股份有限公司 | Multi-path video data acquiring, processing and transmitting device and method thereof |
| CN101702305A (en) * | 2009-10-23 | 2010-05-05 | 广东威创视讯科技股份有限公司 | Method and device for converting, transmitting and processing multi-screen images |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106488357A (en) * | 2015-09-01 | 2017-03-08 | 北京视联动力国际信息技术有限公司 | A kind of method and apparatus of COBBAIF conversion |
| CN106488357B (en) * | 2015-09-01 | 2019-07-05 | 视联动力信息技术股份有限公司 | A kind of method and apparatus of audio interface conversion |
| WO2017045413A1 (en) * | 2015-09-15 | 2017-03-23 | 北京云知声信息技术有限公司 | Audio output method and apparatus |
| CN105261365A (en) * | 2015-09-15 | 2016-01-20 | 北京云知声信息技术有限公司 | Audio output method and device |
| CN105635909B (en) * | 2015-12-23 | 2019-05-03 | 深圳市东微智能科技股份有限公司 | A kind of FPGA large size voice-grade channel route matrix and its method for routing |
| CN105635909A (en) * | 2015-12-23 | 2016-06-01 | 深圳市东微智能科技有限公司 | FPGA (Field Programmable Gate Array) large-scale audio channel routing matrix and routing method thereof |
| CN106782562A (en) * | 2016-12-20 | 2017-05-31 | Tcl通力电子（惠州）有限公司 | Audio-frequency processing method, apparatus and system |
| CN106875952A (en) * | 2016-12-23 | 2017-06-20 | 伟乐视讯科技股份有限公司 | The soft encoding mechanism of MCVF multichannel voice frequency based on FPGA embedded systems |
| CN106875952B (en) * | 2016-12-23 | 2021-02-26 | 伟乐视讯科技股份有限公司 | Multi-channel audio soft coding mechanism based on FPGA embedded system |
| CN107040832A (en) * | 2017-04-22 | 2017-08-11 | 广州市比丽普电子有限公司 | A kind of handheld terminal formula microphone system based on Bluetooth technology |
| CN111835991A (en) * | 2019-04-17 | 2020-10-27 | 鸿富锦精密工业(武汉)有限公司 | Display data channel circuit |
| CN111835991B (en) * | 2019-04-17 | 2024-04-02 | 鸿富锦精密工业(武汉)有限公司 | Display data channel circuit |
| CN110400570A (en) * | 2019-06-24 | 2019-11-01 | 成都航天通信设备有限责任公司 | A kind of multi-path digital audio mixing implementation method |
| CN110400570B (en) * | 2019-06-24 | 2021-08-31 | 成都航天通信设备有限责任公司 | Multi-channel digital audio mixing implementation method |
| CN111010652A (en) * | 2019-12-19 | 2020-04-14 | 杭州叙简科技股份有限公司 | Audio signal double-link backup method |
| CN111010652B (en) * | 2019-12-19 | 2021-02-02 | 杭州叙简科技股份有限公司 | Audio signal double-link backup method |
| CN112188610A (en) * | 2020-08-18 | 2021-01-05 | 天津七所精密机电技术有限公司 | Burst intensive data fusion processing and high-precision synchronization device and method |
| CN113741311A (en) * | 2021-09-16 | 2021-12-03 | 深圳市软赢科技有限公司 | Bus control system and method with sub-period high-frequency processing function |
| CN113741311B (en) * | 2021-09-16 | 2023-03-10 | 深圳市软赢科技有限公司 | Bus control system and method with sub-period high-frequency processing function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102065231B (en) | 2013-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102065231A (en) | Multipath data fusion device, realization method thereof and multipath audio data processing system | |
| CN104378675B (en) | A kind of multi-channel sound audio video synchronization play handling method | |
| CN100370827C (en) | FPGA based four way audio-video multiplexing method | |
| CN102301730A (en) | Method, device and system for transmitting and processing multichannel AV | |
| CN103369365A (en) | Audio and video synchronous recording device | |
| CN102802039A (en) | Multi-channel video hybrid decoding output method and device | |
| CN103841432A (en) | Transmission method and equipment of composite video data | |
| CN108833366B (en) | Control frame compression method based on AS6802 protocol | |
| CN105847961A (en) | Audio data processing method and apparatus | |
| CN201226562Y (en) | Multipath video playback apparatus for embedded digital picture-recording equipment | |
| CN101754024B (en) | Multiplexing device and multiplexing method | |
| CN101931482A (en) | Clock synchronization method and system of convergent type video optical transmitter and receiver | |
| CN103078667A (en) | Low voltage differential signaling (LVDS) high-speed data transmission method based on cat-5 | |
| CN101267571B (en) | A reuse device and method | |
| CN110087010A (en) | A kind of video coding system | |
| CN102522110B (en) | Method and device for realizing data preloading in transmission circuit of digital audio interface | |
| CN205385561U (en) | Tiled display systems of shielding more | |
| CN202772989U (en) | Video relaying soft handover system | |
| CN105718401A (en) | Multiplexing method and system for converting multi-path SMII signal to one-path MII signal | |
| CN104579625A (en) | DRM single-frequency network synchronization implementation method based on ARM and CPLD | |
| US7839307B2 (en) | Video serializer and deserializer with mapping conversion | |
| CN103905177B (en) | A kind of sampled value Transmission system and transmission method applied to wide area protection | |
| CN209419734U (en) | A kind of audio-video peripheral expansion device of video conferencing system | |
| ITTO940282A1 (en) | PERIPHERAL UNIT FOR MULTIVIDEOCONFERENCE VIA SATELLITE | |
| CN202652395U (en) | Transmission system for transmitting multipath multi-format audio and video signals in single-channel multiplex transmission manner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 518000 the six level of energy storage building 3099, Keyuan South Road, Nanshan District, Shenzhen, Guangdong. Patentee after: Shenzhen ZTE NetView Technology Co., Ltd. Address before: 518057 two floor, W1-A building, science and technology south road, Nanshan District hi tech Zone, Shenzhen, Guangdong. Patentee before: Shenzhen ZTE NetView Technology Co., Ltd. |
|
| CP02 | Change in the address of a patent holder |