CN1442027A - 没有回声消除的ip语音通信 - Google Patents
没有回声消除的ip语音通信 Download PDFInfo
- Publication number
- CN1442027A CN1442027A CN01812209.4A CN01812209A CN1442027A CN 1442027 A CN1442027 A CN 1442027A CN 01812209 A CN01812209 A CN 01812209A CN 1442027 A CN1442027 A CN 1442027A
- Authority
- CN
- China
- Prior art keywords
- data
- tdm
- byte
- memory
- kind according
- 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.)
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/64—Hybrid switching systems
- H04L12/6418—Hybrid transport
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/64—Hybrid switching systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5601—Transfer mode dependent, e.g. ATM
- H04L2012/5638—Services, e.g. multimedia, GOS, QOS
- H04L2012/5646—Cell characteristics, e.g. loss, delay, jitter, sequence integrity
- H04L2012/5652—Cell construction, e.g. including header, packetisation, depacketisation, assembly, reassembly
- H04L2012/5653—Cell construction, e.g. including header, packetisation, depacketisation, assembly, reassembly using the ATM adaptation layer [AAL]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/64—Hybrid switching systems
- H04L12/6418—Hybrid transport
- H04L2012/6445—Admission control
- H04L2012/6459—Multiplexing, e.g. TDMA, CDMA
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/64—Hybrid switching systems
- H04L12/6418—Hybrid transport
- H04L2012/6472—Internet
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/64—Hybrid switching systems
- H04L12/6418—Hybrid transport
- H04L2012/6481—Speech, voice
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Time-Division Multiplex Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
Description
基于铜电缆(T载波) | ||
T1 | 1.5Mb/s | 24信道 |
T2 | 16Mb/s | 96信道 |
T3 | 45Mb/s | 672信道 |
同步光纤网(SONET) | ||
OC1 | 51Mb/s | ~800信道 |
0C3 | 155Mb/s | ~1,600信道 |
0C12 | 622Mb/s | ~6400信道 |
0C48 | 2.4Gb/s | ~25,600信道 |
VERS | 1 | IP协议版本 | 0-3 |
HLEN | 2 | 报头长度(32比特字)(typ.5) | 4-7 |
业务类型 | 3 | 优先权,延迟,吞吐量,可靠性 | 8-15 |
总长度 | 4 | 以八位字节为单位的数据报总长度(64k) | 16-31 |
标识符 | 5 | 标识片段的ID号码 | 32-47 |
标记 | 5 | 分段控制 | 48-51 |
片段偏移量 | 6 | 分段离数据报报头的偏移量 | (等) |
驻留时间 | 7 | 数据报驻留的最大时间 | |
协议 | 8 | 在一个网络帧内的同样类型字段 |
报头校验和 | 9 | 检验报头的完整性 | |
源IP地址 | A | 发送方的32比特IP地址 | |
目的地IP地址 | B | 预定接收方的32比特IP地址 | |
IP选项 | C | 可选;测试和调试 | |
填充 | D | 填充到所规定的最小分组长度 | |
数据 | 也称为净荷 |
Claims (33)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US20916900P | 2000-06-02 | 2000-06-02 | |
US60/209,169 | 2000-06-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1442027A true CN1442027A (zh) | 2003-09-10 |
CN100499872C CN100499872C (zh) | 2009-06-10 |
Family
ID=22777639
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB018122094A Expired - Fee Related CN100499872C (zh) | 2000-06-02 | 2001-06-01 | 没有回声消除的ip语音通信的装置和方法 |
Country Status (6)
Country | Link |
---|---|
US (2) | US7042892B2 (zh) |
EP (1) | EP1305691A4 (zh) |
JP (1) | JP4694092B2 (zh) |
CN (1) | CN100499872C (zh) |
AU (1) | AU2001266687A1 (zh) |
WO (1) | WO2001095057A2 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101207644B (zh) * | 2006-12-19 | 2010-08-18 | 中兴通讯股份有限公司 | 在VoIP通信中降低回声对主观感受影响的方法 |
CN102411934A (zh) * | 2011-11-30 | 2012-04-11 | 浙江元亨通信技术股份有限公司 | 语音平滑处理方法 |
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US7167480B1 (en) * | 2001-06-21 | 2007-01-23 | Lighthouse Capital Partners Iv, Lp | Multi-service data transport architecture |
GB0118196D0 (en) * | 2001-07-26 | 2001-09-19 | Zarlink Semiconductor Ltd | Apparatus for switching time division multiplex channels |
US9836424B2 (en) * | 2001-08-24 | 2017-12-05 | Intel Corporation | General input/output architecture, protocol and related methods to implement flow control |
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ATE418821T1 (de) * | 2001-08-24 | 2009-01-15 | Rumi Sheryar Gonda | Verfahren und vorrichtung zum übersetzen von sdh/sonet-rahmen in ethernet-rahmen |
US7152128B2 (en) * | 2001-08-24 | 2006-12-19 | Intel Corporation | General input/output architecture, protocol and related methods to manage data integrity |
US7486693B2 (en) * | 2001-12-14 | 2009-02-03 | General Electric Company | Time slot protocol |
US7233587B2 (en) * | 2002-02-01 | 2007-06-19 | Harris Corporation | Method and system for encapsulating time division multiplex data into individual packets of a packet based network |
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-
2001
- 2001-06-01 EP EP01944260A patent/EP1305691A4/en not_active Withdrawn
- 2001-06-01 JP JP2002502544A patent/JP4694092B2/ja not_active Expired - Fee Related
- 2001-06-01 CN CNB018122094A patent/CN100499872C/zh not_active Expired - Fee Related
- 2001-06-01 WO PCT/US2001/018008 patent/WO2001095057A2/en not_active Application Discontinuation
- 2001-06-01 US US09/872,478 patent/US7042892B2/en not_active Expired - Lifetime
- 2001-06-01 AU AU2001266687A patent/AU2001266687A1/en not_active Abandoned
-
2005
- 2005-08-12 US US11/203,317 patent/US20050271059A1/en not_active Abandoned
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101207644B (zh) * | 2006-12-19 | 2010-08-18 | 中兴通讯股份有限公司 | 在VoIP通信中降低回声对主观感受影响的方法 |
CN102411934A (zh) * | 2011-11-30 | 2012-04-11 | 浙江元亨通信技术股份有限公司 | 语音平滑处理方法 |
Also Published As
Publication number | Publication date |
---|---|
JP4694092B2 (ja) | 2011-06-01 |
CN100499872C (zh) | 2009-06-10 |
WO2001095057A3 (en) | 2002-03-14 |
EP1305691A2 (en) | 2003-05-02 |
US20050271059A1 (en) | 2005-12-08 |
US20020034194A1 (en) | 2002-03-21 |
US7042892B2 (en) | 2006-05-09 |
JP2003536298A (ja) | 2003-12-02 |
EP1305691A4 (en) | 2003-07-23 |
WO2001095057A2 (en) | 2001-12-13 |
AU2001266687A1 (en) | 2001-12-17 |
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