CN106027541A - Voice coding and decoding device and method used for GSM-R communication system - Google Patents
Voice coding and decoding device and method used for GSM-R communication system Download PDFInfo
- Publication number
- CN106027541A CN106027541A CN201610439881.6A CN201610439881A CN106027541A CN 106027541 A CN106027541 A CN 106027541A CN 201610439881 A CN201610439881 A CN 201610439881A CN 106027541 A CN106027541 A CN 106027541A
- Authority
- CN
- China
- Prior art keywords
- data
- decoding
- module
- bytes
- coding
- 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.)
- Pending
Links
- 238000004891 communication Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 20
- 241001269238 Data Species 0.000 claims description 17
- 230000000875 corresponding effect Effects 0.000 claims description 7
- 238000013461 design Methods 0.000 claims description 6
- 238000012795 verification Methods 0.000 claims description 3
- 235000013399 edible fruits Nutrition 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000004806 packaging method and process Methods 0.000 abstract 2
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1069—Session establishment or de-establishment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
- B61L15/0018—Communication with or on the vehicle or train
- B61L15/0027—Radio-based, e.g. using GSM-R
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/75—Media network packet handling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/80—Responding to QoS
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Business, Economics & Management (AREA)
- General Business, Economics & Management (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Computing Systems (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Communication Control (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
The invention discloses a voice coding and decoding device and method used for a GSM-R communication system. The voice coding and decoding device comprises a data decomposition module used for decomposing 240 16-bit PCM digital voice data, outputting 20 bytes if the data are coded at a rate of 5.3 Kbps, and outputting 24 bytes if the data are coded at the rate of 6.3 Kbps; a packaging module used for packaging and sending the data which are transmitted for outputting the 20 bytes when the data are coded at the rate of 5.3 Kbps or outputting the 24 bytes when the data are coded at the rate of 6.3 Kbps based on a data transmission requirement; a decoding module used for decoding the received 20/24 bytes data into 240 16-bit PCM digital voice data; and a playing module used for playing the coded data which are decoded into the PCM format digital voice by using a voice chip. The voice coding and decoding device and method used for the GSM-R communication system have an advantage of high call quality in CIR communication.
Description
Technical field
The present invention relates to encoding and decoding speech technical field, be specifically related to a kind of encoding and decoding speech device and method for GSM-R communication system.
Background technology
Cab integrated radio communication (hereinafter referred to as: CIR) plays increasingly important function in the daily transportation command of china railway.
Along with the development of railway transportation cause, CIR need constantly upgrading to adapt to new situation.The CIR3.0 of new research and development will replace original CIR2.0.Current reason for escalation is promoted mainly to have three classes: one is that utilization department constantly proposes new functional requirement to CIR, relevant departments' successively issue a series of CIR equipment and the supplementary technical specification of application；Two is to be limited by equipment framework, application platform, and the optimization of many functions and realization are by certain restriction；Three is that CIR must use the 400MHz frequency range that railway head office is reserved owing to the planning of radio frequency and adjustment, 457～459MHz, 467～469MHz frequency range that railway 450MHz Radio Train Dispatch Communication System uses will progressively be regained by country.
Owing to CIR2.0 speech quality is bad, a kind of technical scheme of eager needs can solve the problem that the technical problem that CIR2.0 speech quality is bad.
Summary of the invention
For defect of the prior art, the invention provides a kind of encoding and decoding speech device and method for GSM-R communication system, the advantage that this device can improve CIR communication quality.
A kind of encoding and decoding speech device for GSM-R communication system, including: data decomposing module, package module, decoder module and playing module；
Described data decomposing module, for 240 16 PCM digital voice datas, if resolved into 5.3Kbps rate coding, then 20 bytes of output, if during with 6.3Kbps rate coding, export 24 bytes；
Described package module, for needing to export 20 bytes during 5.3Kbps rate coding according to data transportation requirements, the data that 24 bytes of output send when with 6.3Kbps rate coding carry out package for sending；
Described decoder module, for being decoded into 240 16 PCM digital voice datas by 20/24 byte data received；
Described playing module, plays for speech chip for coded data is decoded as the digital speech of PCM format.
Preferably, described package module also includes computing module, and the back end size=serial ports transceiving chip for serial ports transmit queue sends the size of FIFO and the nodes of queue more than (data volume+heading+message trailer+check byte after single frames voice coding)/FIFO size.
Preferably, described decoder module also includes sort module, for doing corresponding action according to the result of data parsing, if data so insert buffer queue to be encoded, if encoding and decoding speech start/END instruction so starts/stops encoding and decoding speech, concurrently replys instruction.
Described decoder module also includes determining module, for decoding back end size=24 byte of input rank；The node capacity of queue is big, uses the remaining all memory sources of coding/decoding module；Because the time of decoding is the shortest, must once decode in be sure oing 30ms, the incorrect data of serial ports are abandoned in design, it is simple to buffer most speech data.
Preferably, described playing module also includes idle module, for when not having encoding and decoding task, program enters idle task, and system enters being excited by interruption of low power consumpting state, another frame coding or decoding task, decoding data are from for serial ports, and serial data source is not done and specified.
A kind of encoding and decoding speech method for GSM-R communication system, including:
240 16 PCM digital voice datas, if during with 5.3Kbps rate coding, then 20 bytes of output, if during with 6.3Kbps rate coding, export 24 bytes；
To need to export 20 bytes during 5.3Kbps rate coding according to data transportation requirements, the data exporting 24 bytes transmissions when with 6.3Kbps rate coding carry out package for sending；
Reception includes, to export 20 bytes during 5.3Kbps rate coding, exporting the packet data of 24 byte code data when with 6.3Kbps rate coding；Wherein 20 byte datas and 24 bytes can occur or the most existing simultaneously, i.e. frame boundaries can switch at any time；Wherein 20 byte datas and 24 bytes can occur or the most existing simultaneously, i.e. frame boundaries can switch at any time；The back end size of serial ports receiving queue=serial ports transceiving chip receives the size of FIFO；The nodes of queue should be greater than ((115200/8)/FIFO size) * (30/1000)；
20/24 byte data received is decoded into 240 16 PCM digital voice datas；
The digital speech that coded data is decoded as PCM format is play for speech chip.
Preferably, what described package sent specifically includes:
The back end size of serial ports transmit queue=serial ports transceiving chip sends the size of FIFO；The nodes of queue is more than (data volume+heading+message trailer+check byte after single frames voice coding)/FIFO size.
Preferably, specifically also include during described data are decoded into digital voice data:
Result according to data parsing does corresponding action, if data so insert buffer queue to be encoded, if encoding and decoding speech start/END instruction so starts/stops encoding and decoding speech, concurrently replys instruction.
Preferably, also include: back end size=24 byte of decoding input rank；The node capacity of queue is big, uses the remaining all memory sources of coding/decoding module；Because the time of decoding is the shortest, must once decode in be sure oing 30ms, the incorrect data of serial ports are abandoned in design, it is simple to buffer most speech data.
Preferably, also including: when not having encoding and decoding task, program enters idle task, and system enters being excited by interruption of low power consumpting state, another frame coding or decoding task.Decoding data are from for serial ports, and serial data source is not done and specified.
As shown from the above technical solution, the device that the present invention proposes, except speech quality height also has, have the advantage that
1, voice collecting is play and is used digital scheme, relatively analog voice, and jamproof ability is strong；
Compression coding ratio is high, is suitable in serial ports and industrial bus transmission；
2, the digital speech energy superposition of many groups is play；
3, individually becoming module, it is simple to the debugging of decoding method, optimize and replace, cab integrated radio communication upgrading simultaneously need not consider voice collecting and broadcasting；
4, low-power consumption；
5, low cost.
The further feature of the present invention or advantage will illustrate in the following description.Further, the Partial Feature of the present invention or advantage will be become apparent by description, or be appreciated that by implementing the present invention.The purpose of the present invention and certain advantages can be realized by step specifically noted in description, claims and accompanying drawing or be obtained.
Accompanying drawing explanation
Accompanying drawing is for providing a further understanding of the present invention, and constitutes a part for description, is provided commonly for explaining the present invention with embodiments of the invention, is not intended that limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to one embodiment of the invention plant running schematic diagram；
Fig. 2 is to perform flow chart according to one embodiment of the invention method.
Detailed description of the invention
Embodiments of the present invention are described in detail below with reference to drawings and Examples, the enforcement personnel of the present invention can fully understand how application technology means are to solve technical problem for the present invention whereby, and reach the process that realizes of technique effect and be embodied as the present invention according to the above-mentioned process that realizes.As long as it should be noted that do not constitute conflict, each embodiment in the present invention and each feature in each embodiment can be combined with each other, and the technical scheme formed is all within protection scope of the present invention.
Fig. 1 is according to one embodiment of the invention plant running schematic diagram, as shown in Figure 1.The invention provides a kind of encoding and decoding speech device for GSM-R communication system, the advantage that the arrangement increases CIR communication quality.
A kind of encoding and decoding speech device for GSM-R communication system, including: data decomposing module 110, package module 120, decoder module 130 and playing module 140；
Described data decomposing module 110, for 240 16 PCM digital voice datas, if resolved into 5.3Kbps rate coding, then 20 bytes of output, if during with 6.3Kbps rate coding, export 24 bytes；
Described package module 120, for needing to export 20 bytes during 5.3Kbps rate coding according to data transportation requirements, the data that 24 bytes of output send when with 6.3Kbps rate coding carry out package for sending；Preferably, described package module 120 also includes computing module, and the back end size=serial ports transceiving chip for serial ports transmit queue sends the size of FIFO and the nodes of queue more than (data volume+heading+message trailer+check byte after single frames voice coding)/FIFO size.
Described decoder module 130, for being decoded into 240 16 PCM digital voice datas by 20/24 byte data received；Preferably, this device also includes: decoder module 130 also includes sort module, for doing corresponding action according to the result of data parsing, if data so insert buffer queue to be encoded, if encoding and decoding speech start/END instruction so starts/stops encoding and decoding speech, concurrently replys instruction.Described decoder module also includes determining module, for decoding back end size=24 byte of input rank；The node capacity of queue is big, uses the remaining all memory sources of coding/decoding module；Because the time of decoding is the shortest, must once decode in be sure oing 30ms, the incorrect data of serial ports are abandoned in design, it is simple to buffer most speech data.
Decoder module is also performed to CRC check code in receiving data procedures, and CRC check code generator polynomial is: G (X)=X16+X12+X5+1.Verification content is to the full content of " data " from " message length ".
Described playing module 140, plays for speech chip for coded data is decoded as the digital speech of PCM format.Preferably, this device also includes: idle module, and for when not having encoding and decoding task, program enters idle task, and system enters being excited by interruption of low power consumpting state, another frame coding or decoding task.Decoding data are from for serial ports, and serial data source is not done and specified.
As in figure 2 it is shown, a kind of encoding and decoding speech method for GSM-R communication system, including:
S200,240 16 PCM digital voice datas, if during with 5.3Kbps rate coding, then 20 bytes of output, if during with 6.3Kbps rate coding, export 24 bytes.
S201, will need to export 20 bytes during 5.3Kbps rate coding according to data transportation requirements, and the data exporting 24 bytes transmissions when with 6.3Kbps rate coding carry out package for sending；Preferably, what described package sent specifically includes:
The back end size of serial ports transmit queue=serial ports transceiving chip sends the size of FIFO；The nodes of queue is more than (data volume+heading+message trailer+check byte after single frames voice coding)/FIFO size.For improving operational efficiency, the data transmit-receive of serial ports also will use DMA mechanism, and compared with serial ports submodule when using 6713 beforehand research, data parsing and control are by more more complicated.Serial ports receives some just to interrupt, and increases a special data parsing sub-block, and this sub-block resolves paid-in all serial datas, and result is put in buffer queue to be decoded.
S202, receives and includes, to export 20 bytes during 5.3Kbps rate coding, exporting the packet data of 24 byte code data when with 6.3Kbps rate coding；Wherein 20 byte datas and 24 bytes can occur or the most existing simultaneously, i.e. frame boundaries can switch at any time；Wherein 20 byte datas and 24 bytes can occur or the most existing simultaneously, i.e. frame boundaries can switch at any time；The back end size of serial ports receiving queue=serial ports transceiving chip receives the size of FIFO；The nodes of queue should be greater than ((115200/8)/FIFO size) * (30/1000)；
S203, is decoded into 240 16 PCM digital voice datas by 20/24 byte data received；Preferably, specifically also include during described data are decoded into digital voice data:
Result according to data parsing does corresponding action, if data so insert buffer queue to be encoded, if encoding and decoding speech start/END instruction so starts/stops encoding and decoding speech, concurrently replys instruction.Also include: back end size=24 byte of decoding input rank；The node capacity of queue is big, uses the remaining all memory sources of coding/decoding module；Because the time of decoding is the shortest, must once decode in be sure oing 30ms, the incorrect data of serial ports are abandoned in design, it is simple to buffer most speech data.
S204, the digital speech that coded data is decoded as PCM format is play for speech chip.Preferably, also including: when not having encoding and decoding task, program enters idle task, and system enters being excited by interruption of low power consumpting state, another frame coding or decoding task.Decoding data are from for serial ports, and serial data source is not done and specified.
Using following communication frame format during communication, speech effect quality is good, does not leak data.
1, using DLE (10H), STX (02H) as frame start field, using DLE (10H), ETX (03H) as frame end field.
2, for avoiding occurring DLE in information field, affecting being properly received of data, data receiver checks in information field whether DLE occur before sending data, if occurring DLE character in information field, then adds a DLE character after this DLE character again.If data receiver continuously receives two DLE characters, show that this DLE is data message rather than controls ESC, remove a DLE.
3, basic frame format is shown in Table 3；
4, CRC check code generator polynomial is: G (X)=X16+X12+X5+1.Verification content is to the full content of " data " from " message length "；
Table 3 form is as follows:
Note:
A) " message length " expression starts the byte number terminated to " CRC " from " source port code "；
B) multibyte fields such as " message length ", " sources traffic address ", " purpose mailing address " and " CRC check " is that high byte data are front；
C) 00H in " ordering " is used for sending broadcast message (need not response), F0H～FFH controls for system, and each carrying business does not allows to re-define these orders；
D) content of " data " is individually specified by each carrying business, and when " order " byte length is inadequate, each business can arrange in " data "；
E) " data " length is not more than 700 bytes.If " data " length that carrying service needed sends is more than 700 bytes, then sent the rule of data by the self-defining subpackage in " data " of carrying business；
F) mailing address is made up of IP address+(source or purpose) communication port numbers.
While it is disclosed that embodiment as above, but described content is only to facilitate the embodiment that understands the present invention and use, is not limited to the present invention.Method of the present invention also can have other various embodiments.Without departing from the spirit of the present invention, those of ordinary skill in the art are when making various corresponding change or deformation according to the present invention, but these change accordingly or deform the scope of the claims that all should belong to the present invention.
Claims (10)
1. the encoding and decoding speech device for GSM-R communication system, it is characterised in that
Including: data decomposing module, package module, decoder module and playing module；
Described data decomposing module, for 240 16 PCM digital voice datas, resolve into as
When fruit is with 5.3Kbps rate coding, then 20 bytes of output, if with 6.3Kbps rate coding
Time then export 24 bytes；
Described package module, for needing with 5.3Kbps rate coding according to data transportation requirements
Time 20 bytes of output, when with 6.3Kbps rate coding, export the data that 24 bytes send enter
Row package is for sending；
Described decoder module, for being decoded into 240 16 by 20/24 byte data received
PCM digital voice data；
Described playing module, for being decoded as the digital speech of PCM format for language by coded data
Sound chip is play.
Device the most according to claim 1, it is characterised in that described package module is also wrapped
Including computing module, the back end size=serial ports transceiving chip for serial ports transmit queue sends
The size of FIFO and the nodes of queue are more than (data volume+the message after single frames voice coding
Head+message trailer+check byte)/FIFO size.
Device the most according to claim 1, it is characterised in that described decoder module also wraps
Include sort module, for doing corresponding action according to the result of data parsing, if data are so
Insert buffer queue to be encoded, if encoding and decoding speech starts/END instruction, then start/stop
Only encoding and decoding speech, concurrently replys instruction.
Device the most according to claim 3, it is characterised in that described decoder module also wraps
Include and determine module, for decoding back end size=24 byte of input rank；Queue
Node capacity is big, uses the remaining all memory sources of coding/decoding module；Because the time of decoding
The shortest, must once decode in be sure oing 30ms, the incorrect data of serial ports are abandoned in design, it is simple to
Buffer most speech data.
Device the most according to claim 1, it is characterised in that playing module also includes sky
Not busy module, for when not having encoding and decoding task, program enters idle task, and system enters low
Power consumption state, another frame coding or being excited by interruption of decoding task, decoding data from serial ports,
Serial data source is not done and is specified.
6. the encoding and decoding speech method for GSM-R communication system, it is characterised in that
Including:
240 16 PCM digital voice datas, if during with 5.3Kbps rate coding, the most defeated
Go out 20 bytes, if during with 6.3Kbps rate coding, export 24 bytes；
To need during 5.3Kbps rate coding, to export 20 bytes according to data transportation requirements, when
The data sent to export 24 bytes during 6.3Kbps rate coding carry out package for sending；
Reception includes to export 20 bytes during 5.3Kbps rate coding, when with 6.3Kbps speed
The packet data of 24 byte code data is exported during coding；Wherein 20 byte datas and 24
Byte can occur or the most existing simultaneously, i.e. frame boundaries can switch at any time；Wherein 20 bytes
Data and 24 bytes can occur or the most existing simultaneously, i.e. frame boundaries can switch at any time；String
Back end size=serial ports transceiving chip of mouth receiving queue receives the size of FIFO；Queue
Nodes should be greater than ((115200/8)/FIFO size) * (30/1000)；
20/24 byte data received is decoded into 240 16 PCM digital voice datas；
The digital speech that coded data is decoded as PCM format is play for speech chip.
Method the most according to claim 6, it is characterised in that the tool that described package sends
Body includes:
The back end size of serial ports transmit queue=serial ports transceiving chip sends the size of FIFO；
The nodes of queue is more than the (data volume+heading+message trailer+verification after single frames voice coding
Byte)/FIFO size.
Method the most according to claim 6, it is characterised in that described data are decoded into number
Specifically also include during word speech data:
Result according to data parsing does corresponding action, if data are so inserted to be encoded
Buffer queue, if encoding and decoding speech start/END instruction so starts/stops voice coder solution
Code, concurrently replys instruction.
Method the most according to claim 8, it is characterised in that also include:
Back end size=24 byte of decoding input rank；The node capacity of queue is big,
Use the remaining all memory sources of coding/decoding module；Because the time of decoding is the shortest, be sure of
Must once decode in 30ms, the incorrect data of serial ports are abandoned in design, it is simple to buffer the most multi-lingual
Sound data.
Method the most according to claim 6, it is characterised in that also include: when not having
During encoding and decoding task, program enters idle task, and system enters low power consumpting state, and another frame is compiled
Code or being excited by interruption of decoding task；Decoding data are from for serial ports, and serial data is originated not
Do and specify.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610439881.6A CN106027541A (en) | 2016-06-17 | 2016-06-17 | Voice coding and decoding device and method used for GSM-R communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610439881.6A CN106027541A (en) | 2016-06-17 | 2016-06-17 | Voice coding and decoding device and method used for GSM-R communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106027541A true CN106027541A (en) | 2016-10-12 |
Family
ID=57088348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610439881.6A Pending CN106027541A (en) | 2016-06-17 | 2016-06-17 | Voice coding and decoding device and method used for GSM-R communication system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106027541A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111510549A (en) * | 2020-04-26 | 2020-08-07 | 厦门亿联网络技术股份有限公司 | Wireless communication device, voice data processing method and device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6477267B1 (en) * | 1995-12-22 | 2002-11-05 | Dynamic Digital Depth Research Pty Ltd. | Image conversion and encoding techniques |
| CN101072177A (en) * | 2007-06-19 | 2007-11-14 | 中兴通讯股份有限公司 | Method for transmitting voice |
| CN101159442A (en) * | 2007-10-30 | 2008-04-09 | 上海华为技术有限公司 | Method and base station of enhancing voice quality |
| CN101232347A (en) * | 2007-01-23 | 2008-07-30 | 大唐移动通信设备有限公司 | Method of speech transmission and AMR system |
| TW200843364A (en) * | 2007-04-27 | 2008-11-01 | Magima Digital Information Co Ltd | An audio decoder and method thereof |
| CN101562910A (en) * | 2008-04-18 | 2009-10-21 | 中国移动通信集团公司 | Voice data transmission method as well as system and media gateway |
| CN101996638A (en) * | 2009-08-10 | 2011-03-30 | 北京多思科技发展有限公司 | Voice codec and voice coding/decoding method |
| CN102413216A (en) * | 2011-11-18 | 2012-04-11 | 深圳市中兴移动通信有限公司 | Method and system for realizing Android intelligent mobile terminal voice communication |
| CN102567519A (en) * | 2011-12-28 | 2012-07-11 | 北京世纪东方国铁科技股份有限公司 | Data analysis device and method for GSM-R system |
| CN104506287A (en) * | 2014-12-29 | 2015-04-08 | 重庆邮电大学 | Real-time sound communication method under TD-LTE (time division-long term evolution) emergency communication |
-
2016
- 2016-06-17 CN CN201610439881.6A patent/CN106027541A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6477267B1 (en) * | 1995-12-22 | 2002-11-05 | Dynamic Digital Depth Research Pty Ltd. | Image conversion and encoding techniques |
| CN101232347A (en) * | 2007-01-23 | 2008-07-30 | 大唐移动通信设备有限公司 | Method of speech transmission and AMR system |
| TW200843364A (en) * | 2007-04-27 | 2008-11-01 | Magima Digital Information Co Ltd | An audio decoder and method thereof |
| CN101072177A (en) * | 2007-06-19 | 2007-11-14 | 中兴通讯股份有限公司 | Method for transmitting voice |
| CN101159442A (en) * | 2007-10-30 | 2008-04-09 | 上海华为技术有限公司 | Method and base station of enhancing voice quality |
| CN101562910A (en) * | 2008-04-18 | 2009-10-21 | 中国移动通信集团公司 | Voice data transmission method as well as system and media gateway |
| CN101996638A (en) * | 2009-08-10 | 2011-03-30 | 北京多思科技发展有限公司 | Voice codec and voice coding/decoding method |
| CN102413216A (en) * | 2011-11-18 | 2012-04-11 | 深圳市中兴移动通信有限公司 | Method and system for realizing Android intelligent mobile terminal voice communication |
| CN102567519A (en) * | 2011-12-28 | 2012-07-11 | 北京世纪东方国铁科技股份有限公司 | Data analysis device and method for GSM-R system |
| CN104506287A (en) * | 2014-12-29 | 2015-04-08 | 重庆邮电大学 | Real-time sound communication method under TD-LTE (time division-long term evolution) emergency communication |
Non-Patent Citations (5)
| Title |
|---|
| 刘声权 等: "G.723.1双速率语音编解码算法在TMS320VC5402上的实现", 《微电子技术》 * |
| 吴欣茹: "G.723.1语音编解码算法分析及优化", 《科学技术与工程》 * |
| 杨浩: "《高速铁路与重载运输》", 31 July 2015 * |
| 汪国有: "基于定点DSP的G.723.1语音编码器的实时实现", 《计算机与数字工程》 * |
| 王黎明 等: "《ARM9嵌入式系统开发与实践》", 31 October 2008 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111510549A (en) * | 2020-04-26 | 2020-08-07 | 厦门亿联网络技术股份有限公司 | Wireless communication device, voice data processing method and device |
| US11545161B2 (en) | 2020-04-26 | 2023-01-03 | Yealink (Xiamen) Network Technology Co., Ltd. | Wireless communication device, and method and apparatus for processing voice data |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2285029B1 (en) | Data transmission method, transmission system and data transmitter | |
| US11677867B2 (en) | Data structure for physical layer encapsulation | |
| CN107872422A (en) | A kind of data transmission method, device and electronic equipment | |
| CN108989708A (en) | The low speed signal photoelectric conversion module of all-purpose belt multimedia interface | |
| US11240709B2 (en) | Data transmission method and related device | |
| CN101146102A (en) | HDLC data uplink and downlink method and communication device in RRU network | |
| CN102843206B (en) | Based on the voice transmission method of channel associated signalling | |
| CN104144331A (en) | Device for transmitting multi-channel image/video code data through single SDI channel | |
| CN106603192A (en) | Adaptive FEC mechanism based on media content | |
| CN102647255A (en) | Method and system for transmitting data on wireless voice channel in Internet of things energy consumption monitoring | |
| CN106027541A (en) | Voice coding and decoding device and method used for GSM-R communication system | |
| CN106681968A (en) | Transmitting method for batch numeric data, receiving terminal and sending terminal | |
| US20120290823A1 (en) | Core abstraction layer interface | |
| CN104660372B (en) | One kind is based on single-chip microcomputer asynchronous serial port multi-channel data transmission method and system | |
| CN104168446B (en) | Audio-video signal digital-to-analogue switching system based on scheduling message and hard decoder | |
| CN109359071A (en) | The method of data communication between module | |
| CN105513603A (en) | DSP-based low-speed voice coding and decoding module | |
| CN103997486B (en) | The interactive approach and system of different operating system platform blank | |
| CN106603193A (en) | Media content-based FEC mechanism | |
| CN101355401A (en) | Method and apparatus for decoding turbo code | |
| CN105635857B (en) | DMR digital walkie-talkie is chipped in system in real time | |
| CN101110960A (en) | Multimedia broadcast data transmission method, device and system | |
| CN108052472A (en) | A kind of IIC facility communication systems, data writing method and data reading method | |
| CN106604216A (en) | Transmission control method of bidirectional voice and operation control data and system thereof | |
| CN103888629B (en) | The device that voice compression/meeting exchanges process is carried out to PCM speech |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 102600 Beijing Daxing District Zhongguancun Science and Technology Park Daxing Biomedical Industry Base, No. 1 Building, 21 Tianrong Street Applicant after: Beijing Century Oriental Zhihui Technology Co.,Ltd. Address before: 102629 Building 1, yard 21, Tianrong street, Daxing biomedical industrial base, Zhongguancun Science and Technology Park, Daxing District, Beijing Applicant before: BEIJING CENTURY DONGFANG COMMUNICATION EQUIPMENT Co.,Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |