CN1299198A - 宽带码分多址无线本地环路系统的双音多频传输结构 - Google Patents
宽带码分多址无线本地环路系统的双音多频传输结构 Download PDFInfo
- Publication number
- CN1299198A CN1299198A CN00134508A CN00134508A CN1299198A CN 1299198 A CN1299198 A CN 1299198A CN 00134508 A CN00134508 A CN 00134508A CN 00134508 A CN00134508 A CN 00134508A CN 1299198 A CN1299198 A CN 1299198A
- Authority
- CN
- China
- Prior art keywords
- dtmf
- signal
- transmission structure
- vocoder
- base station
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
- H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Telephone Function (AREA)
- Telephonic Communication Services (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims (11)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019990055303A KR100336513B1 (ko) | 1999-12-07 | 1999-12-07 | 무선가입자망의 보코더를 이용한 톤 신호 전송장치 |
KR55303/1999 | 1999-12-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1299198A true CN1299198A (zh) | 2001-06-13 |
CN1157015C CN1157015C (zh) | 2004-07-07 |
Family
ID=19623861
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB001345087A Expired - Fee Related CN1157015C (zh) | 1999-12-07 | 2000-12-07 | 宽带码分多址系统的双音多频传输设备及其方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US6810025B2 (zh) |
KR (1) | KR100336513B1 (zh) |
CN (1) | CN1157015C (zh) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1310453C (zh) * | 2001-09-26 | 2007-04-11 | 中兴通讯股份有限公司 | 码分多址声码器时间片资源的分配方法和装置 |
CN101931717A (zh) * | 2009-06-18 | 2010-12-29 | 鸿富锦精密工业(深圳)有限公司 | 网络语音装置及其调整中断时间的方法 |
CN101304566B (zh) * | 2007-05-08 | 2011-09-28 | 联发科技股份有限公司 | 移动通信装置及用以连接移动台之间通信的基站系统 |
CN102833434A (zh) * | 2012-08-15 | 2012-12-19 | 深圳市共进电子股份有限公司 | 一种网络侧双音多频信号的检测方法、相关装置及系统 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IL151333A0 (en) * | 2001-01-31 | 2003-04-10 | Mitsubishi Electric Corp | Multiplex equipment for signal transmission |
JP2007532038A (ja) * | 2003-09-03 | 2007-11-08 | モヘビ、ベフザド | 近距離用携帯電話中継装置 |
US7142852B2 (en) * | 2003-11-13 | 2006-11-28 | Motorola, Inc. | Method and gateway for controlling call routing |
JP2006108777A (ja) * | 2004-09-30 | 2006-04-20 | Toshiba Corp | 電話端末及びこの電話端末を使用した電話システム、及び電話端末の制御方法 |
CN100353777C (zh) * | 2004-12-21 | 2007-12-05 | 华为技术有限公司 | 通讯系统中处理特殊音种的方法及装置 |
CN1867011B (zh) * | 2005-05-18 | 2010-12-08 | 华为技术有限公司 | 前置回波抵消器情况下透传双音多频信号的方法及装置 |
CA2642253A1 (en) * | 2006-03-07 | 2007-09-20 | Nec Corporation | Moving image distribution system and conversion device |
CN101316430A (zh) * | 2008-06-27 | 2008-12-03 | 华为技术有限公司 | 通信信息收集方法、测试方法及网络侧设备 |
US8391126B2 (en) * | 2009-12-17 | 2013-03-05 | At&T Intellectual Property I, L.P. | Method and apparatus for providing echo cancellation in a network |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2959353B2 (ja) * | 1993-09-07 | 1999-10-06 | 三菱電機株式会社 | エコーキャンセラ装置 |
US5459781A (en) * | 1994-01-12 | 1995-10-17 | Dialogic Corporation | Selectively activated dual tone multi-frequency detector |
CA2162571C (en) * | 1994-05-07 | 2001-03-13 | Toshiro Kawahara | Echo canceler and method for learning for the same |
WO1997021312A2 (en) * | 1995-12-01 | 1997-06-12 | Philips Electronics N.V. | A digital cordless telephony system, a radio base station, and a combination of a radio base station and a cordless handset |
US5790658A (en) * | 1996-10-28 | 1998-08-04 | Advanced Micro Devices, Inc. | High performance echo canceller for high speed modem |
US6259905B1 (en) * | 1997-01-08 | 2001-07-10 | Utstarcom, Inc. | Method and apparatus to minimize dialing and connecting delays in a wireless local loop system |
US5920834A (en) * | 1997-01-31 | 1999-07-06 | Qualcomm Incorporated | Echo canceller with talk state determination to control speech processor functional elements in a digital telephone system |
KR100212577B1 (ko) * | 1997-02-25 | 1999-08-02 | 윤종용 | 음성사서함시스템에서 반향제거를 위한 백색잡음 송출 방법 |
US6628780B2 (en) * | 1997-10-31 | 2003-09-30 | Lucent Technologies Inc. | Echo cancellation in the network for data applications |
US6628779B1 (en) * | 1998-05-11 | 2003-09-30 | Telcordia Technologies, Inc. | Method and system for scaleable near-end speech cancellation for tip and ring tone signal detectors |
US6199036B1 (en) * | 1999-08-25 | 2001-03-06 | Nortel Networks Limited | Tone detection using pitch period |
-
1999
- 1999-12-07 KR KR1019990055303A patent/KR100336513B1/ko not_active IP Right Cessation
-
2000
- 2000-12-05 US US09/729,098 patent/US6810025B2/en not_active Expired - Fee Related
- 2000-12-07 CN CNB001345087A patent/CN1157015C/zh not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1310453C (zh) * | 2001-09-26 | 2007-04-11 | 中兴通讯股份有限公司 | 码分多址声码器时间片资源的分配方法和装置 |
CN101304566B (zh) * | 2007-05-08 | 2011-09-28 | 联发科技股份有限公司 | 移动通信装置及用以连接移动台之间通信的基站系统 |
CN101931717A (zh) * | 2009-06-18 | 2010-12-29 | 鸿富锦精密工业(深圳)有限公司 | 网络语音装置及其调整中断时间的方法 |
CN102833434A (zh) * | 2012-08-15 | 2012-12-19 | 深圳市共进电子股份有限公司 | 一种网络侧双音多频信号的检测方法、相关装置及系统 |
CN102833434B (zh) * | 2012-08-15 | 2014-02-19 | 深圳市共进电子股份有限公司 | 一种网络侧双音多频信号的检测方法、相关装置及系统 |
Also Published As
Publication number | Publication date |
---|---|
KR100336513B1 (ko) | 2002-05-11 |
KR20010054474A (ko) | 2001-07-02 |
US6810025B2 (en) | 2004-10-26 |
CN1157015C (zh) | 2004-07-07 |
US20010002903A1 (en) | 2001-06-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C06 | Publication | ||
PB01 | Publication | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: LG- NORTEL CO., LTD. Free format text: FORMER OWNER: LG ELECTRONIC CO., LTD. Effective date: 20061117 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20061117 Address after: Seoul, South Kerean Patentee after: LG Nortel Co., Ltd. Address before: Seoul, South Kerean Patentee before: LG Electronics Inc. |
|
C56 | Change in the name or address of the patentee |
Owner name: LG-ERICSSON CO., LTD. Free format text: FORMER NAME: LG-NORTEL CO., LTD. |
|
CP01 | Change in the name or title of a patent holder |
Address after: Seoul, South Kerean Patentee after: Novera Optics Korea Co., Ltd. Address before: Seoul, South Kerean Patentee before: LG Nortel Co., Ltd. |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040707 Termination date: 20131207 |