BR9711469A - Sistema e método de chamada em conferência para um canal de comunicação sem fio - Google Patents
Sistema e método de chamada em conferência para um canal de comunicação sem fioInfo
- Publication number
- BR9711469A BR9711469A BR9711469-3A BR9711469A BR9711469A BR 9711469 A BR9711469 A BR 9711469A BR 9711469 A BR9711469 A BR 9711469A BR 9711469 A BR9711469 A BR 9711469A
- Authority
- BR
- Brazil
- Prior art keywords
- signal
- vocoded
- participants
- received
- rate
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
- H04M3/563—User guidance or feature selection
- H04M3/564—User guidance or feature selection whereby the feature is a sub-conference
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Telephonic Communication Services (AREA)
- Transceivers (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Abstract
"SISTEMA E MéTODO DE CHAMADA EM CONFERêNCIA PAPA UM CANAL DE COMUNICAçõES SEM FIO". é descrito um sistema de chamada em conferência para um canal de comunicações sem fio. O sistema está adaptado para uso com um canal possuindo um primeiro, um segundo e um terceiro participantes em comunicação através de um primeiro (34), um segundo (20) e um terceiro (20) transmissores e receptores respectivamente. O sistema inclui um circuito para receber um sinal codificado (144) a partir de pelo menos um dos transmissores. Um segundo circuito determina (62) qual dos participantes está falando a partir do sinal codificado recebido. Um terceiro circuito é provido para a retransmissão (66) de um sinal codificado recebido a partir do participante que está falando para os outros participantes. Na implementação ilustrada, os sinais codificados são sinais "vocodificados" de taxa variável de fala, nos quais a fala é vocodificada na taxa total, o silêncio é codificado a 1/8 de taxa e as taxas a 1/2 e 1/4 são usadas como taxas de transição. Na implementação ilustrativa, o sinal de quem fala é identificado examinando-se a taxa dos sinais vocodificados de recepção. Quando o sinal vocodificado de quem fala é identificado, ele é retransmitido sem devocodificação para os participantes que não estão falando na chamada em conferência. Através da retransmissão do sinal de quem fala sem a devocodificação fica preservada a qualidade do sinal recebido.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/718,039 US5881053A (en) | 1996-09-13 | 1996-09-13 | Method for a wireless communications channel |
| PCT/US1997/017822 WO1998011709A2 (en) | 1996-09-13 | 1997-09-11 | Conference calling system and method for a wireless communications channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR9711469A true BR9711469A (pt) | 2001-10-16 |
Family
ID=24884570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR9711469-3A BR9711469A (pt) | 1996-09-13 | 1997-09-11 | Sistema e método de chamada em conferência para um canal de comunicação sem fio |
Country Status (17)
| Country | Link |
|---|---|
| US (1) | US5881053A (pt) |
| EP (1) | EP0934644B1 (pt) |
| JP (1) | JP4241931B2 (pt) |
| KR (1) | KR20000036125A (pt) |
| CN (1) | CN1148939C (pt) |
| AT (1) | ATE310356T1 (pt) |
| AU (1) | AU722230B2 (pt) |
| BR (1) | BR9711469A (pt) |
| CA (1) | CA2265757A1 (pt) |
| DE (1) | DE69734668T2 (pt) |
| EA (1) | EA001342B1 (pt) |
| HK (1) | HK1022224A1 (pt) |
| ID (1) | ID22038A (pt) |
| IL (1) | IL128946A (pt) |
| NO (1) | NO991215L (pt) |
| NZ (1) | NZ334617A (pt) |
| WO (1) | WO1998011709A2 (pt) |
Families Citing this family (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69736060T2 (de) * | 1996-03-27 | 2006-10-12 | Motorola, Inc., Schaumburg | Verfahren und vorrichtung zum bereitstellen einer mehrparteien-sprachverbindung für ein drahtloses kommunikationssystem |
| SE9601606D0 (sv) * | 1996-04-26 | 1996-04-26 | Ericsson Telefon Ab L M | Sätt vid radiotelekommunikationssystem |
| US6094428A (en) * | 1997-04-30 | 2000-07-25 | Motorola, Inc. | Method and apparatus for transmission and reception of a transmission rate in a CDMA communication system |
| JP3555832B2 (ja) * | 1998-02-10 | 2004-08-18 | 日本電気株式会社 | 基地局信号時分割送信システム |
| US6078809A (en) * | 1998-02-27 | 2000-06-20 | Motorola, Inc. | Method and apparatus for performing a multi-party communication in a communication system |
| US6463031B1 (en) * | 1998-12-03 | 2002-10-08 | Nokia Mobile Phones Limited | Rate determination technique that utilizes modified cumulative metrics to orthogonalize the rates |
| US6542486B1 (en) * | 1998-12-22 | 2003-04-01 | Nortel Networks Limited | Multiple technology vocoder and an associated telecommunications network |
| CA2370664C (en) * | 2000-02-18 | 2009-02-03 | Nokia Networks Oy | Communications system |
| US7245933B1 (en) * | 2000-03-01 | 2007-07-17 | Motorola, Inc. | Method and apparatus for multicasting in a wireless communication system |
| US6707826B1 (en) * | 2000-03-20 | 2004-03-16 | Motorola, Inc. | Method and apparatus for wireless bandwidth efficient multi-way calling |
| US6574469B1 (en) * | 2000-05-09 | 2003-06-03 | Telefonaktiebolaget L M Ericsson (Publ) | System and method of minimizing the number of voice transcodings during a conference call in a packet-switched network |
| US6785255B2 (en) * | 2001-03-13 | 2004-08-31 | Bharat Sastri | Architecture and protocol for a wireless communication network to provide scalable web services to mobile access devices |
| US6961324B2 (en) | 2001-05-02 | 2005-11-01 | Ipr Licensing, Inc. | System and method for interleaving compressed audio/video (A/V) data frames |
| US6839417B2 (en) | 2002-09-10 | 2005-01-04 | Myriad Entertainment, Inc. | Method and apparatus for improved conference call management |
| US20050068906A1 (en) * | 2003-09-30 | 2005-03-31 | Muri David L. | Method and system for group communications in a wireless communications system |
| CN100466671C (zh) * | 2004-05-14 | 2009-03-04 | 华为技术有限公司 | 语音切换方法及其装置 |
| US20060015579A1 (en) * | 2004-07-16 | 2006-01-19 | Bharat Sastri | Architecture and protocol for a wireless communication network to provide scalable web services to mobile access devices |
| US20060061064A1 (en) * | 2004-09-21 | 2006-03-23 | Kristy Johnson | Protective cover for a trailer tongue |
| EP1989703A4 (en) * | 2006-01-18 | 2012-03-14 | Lg Electronics Inc | DEVICE AND METHOD FOR CODING AND DECODING A SIGNAL |
| US8920343B2 (en) | 2006-03-23 | 2014-12-30 | Michael Edward Sabatino | Apparatus for acquiring and processing of physiological auditory signals |
| CN100461906C (zh) * | 2006-04-17 | 2009-02-11 | 华为技术有限公司 | 一种提高cdma系统语音接口传输效率的方法和装置 |
| JP4955362B2 (ja) | 2006-10-13 | 2012-06-20 | Ｎｅｃインフロンティア株式会社 | 無線ｌａｎシステムおよび無線通信方法 |
| CN101355611B (zh) * | 2007-07-25 | 2011-12-07 | 深圳富泰宏精密工业有限公司 | 语音会议系统及应用该语音会议系统的便携式电子装置 |
| US9025497B2 (en) * | 2009-07-10 | 2015-05-05 | Qualcomm Incorporated | Media forwarding for a group communication session in a wireless communications system |
| US9088630B2 (en) * | 2009-07-13 | 2015-07-21 | Qualcomm Incorporated | Selectively mixing media during a group communication session within a wireless communications system |
| US9178648B2 (en) * | 2010-01-06 | 2015-11-03 | Alcatel Lucent | Method to improve voice over IP capacity for user equipment employing variable rate vocoders |
| US8935160B2 (en) | 2011-09-02 | 2015-01-13 | Harris Corporation | Systems and methods for frame synchronization |
| CN109147759A (zh) * | 2018-10-09 | 2019-01-04 | 电子科技大学 | 一种基于打分算法的短波话音信号分集合并接收方法 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4573207A (en) * | 1983-12-22 | 1986-02-25 | Motorola, Inc. | Queued community repeater communications system |
| NO169209C (no) * | 1989-12-22 | 1992-05-20 | Alcatel Stk As | Fremgangsmaate og system for etablering av konferanseforbindelse. |
| US5568483A (en) * | 1990-06-25 | 1996-10-22 | Qualcomm Incorporated | Method and apparatus for the formatting of data for transmission |
| US5179572A (en) * | 1991-06-17 | 1993-01-12 | Scs Mobilecom, Inc. | Spread spectrum conference calling system and method |
| US5263045A (en) * | 1990-12-05 | 1993-11-16 | Interdigital Technology Corporation | Spread spectrum conference call system and method |
| DE69233502T2 (de) * | 1991-06-11 | 2006-02-23 | Qualcomm, Inc., San Diego | Vocoder mit veränderlicher Bitrate |
| US5272698A (en) * | 1991-09-12 | 1993-12-21 | The United States Of America As Represented By The Secretary Of The Air Force | Multi-speaker conferencing over narrowband channels |
| FI88986C (fi) * | 1991-10-03 | 1993-07-26 | Telenokia Oy | Foerfarande foer genomfoering av ett gruppsamtal i digitalt radionaet |
| ZA947317B (en) * | 1993-09-24 | 1995-05-10 | Qualcomm Inc | Multirate serial viterbi decoder for code division multiple access system applications |
| US5436896A (en) * | 1994-03-17 | 1995-07-25 | At&T Corp. | Conference bridge for packetized speech-signal networks |
| US5610906A (en) * | 1994-06-29 | 1997-03-11 | Interdigital Technology Corporation | Spread-spectrum changeable base station |
-
1996
- 1996-09-13 US US08/718,039 patent/US5881053A/en not_active Expired - Lifetime
-
1997
- 1997-09-11 EA EA199900288A patent/EA001342B1/ru not_active IP Right Cessation
- 1997-09-11 NZ NZ334617A patent/NZ334617A/en not_active IP Right Cessation
- 1997-09-11 EP EP97944605A patent/EP0934644B1/en not_active Expired - Lifetime
- 1997-09-11 JP JP51403098A patent/JP4241931B2/ja not_active Expired - Lifetime
- 1997-09-11 IL IL12894697A patent/IL128946A/en not_active IP Right Cessation
- 1997-09-11 CN CNB971996067A patent/CN1148939C/zh not_active Expired - Lifetime
- 1997-09-11 ID IDW990094Q patent/ID22038A/id unknown
- 1997-09-11 AT AT97944605T patent/ATE310356T1/de not_active IP Right Cessation
- 1997-09-11 BR BR9711469-3A patent/BR9711469A/pt not_active Application Discontinuation
- 1997-09-11 KR KR1019997002158A patent/KR20000036125A/ko not_active Application Discontinuation
- 1997-09-11 CA CA002265757A patent/CA2265757A1/en not_active Abandoned
- 1997-09-11 WO PCT/US1997/017822 patent/WO1998011709A2/en active IP Right Grant
- 1997-09-11 AU AU46064/97A patent/AU722230B2/en not_active Ceased
- 1997-09-11 DE DE69734668T patent/DE69734668T2/de not_active Expired - Lifetime
-
1999
- 1999-03-11 NO NO19991215A patent/NO991215L/no not_active Application Discontinuation
-
2000
- 2000-02-11 HK HK00100840A patent/HK1022224A1/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CN1148939C (zh) | 2004-05-05 |
| WO1998011709A2 (en) | 1998-03-19 |
| JP4241931B2 (ja) | 2009-03-18 |
| HK1022224A1 (en) | 2000-07-28 |
| IL128946A (en) | 2004-06-01 |
| EA001342B1 (ru) | 2001-02-26 |
| US5881053A (en) | 1999-03-09 |
| NO991215D0 (no) | 1999-03-11 |
| DE69734668D1 (de) | 2005-12-22 |
| AU4606497A (en) | 1998-04-02 |
| NO991215L (no) | 1999-05-11 |
| KR20000036125A (ko) | 2000-06-26 |
| JP2001500693A (ja) | 2001-01-16 |
| EP0934644A2 (en) | 1999-08-11 |
| CA2265757A1 (en) | 1998-03-19 |
| EP0934644B1 (en) | 2005-11-16 |
| IL128946A0 (en) | 2000-02-17 |
| ATE310356T1 (de) | 2005-12-15 |
| WO1998011709A3 (en) | 1998-08-27 |
| ID22038A (id) | 1999-08-26 |
| AU722230B2 (en) | 2000-07-27 |
| DE69734668T2 (de) | 2006-08-10 |
| EA199900288A1 (ru) | 1999-10-28 |
| NZ334617A (en) | 1999-09-29 |
| CN1237304A (zh) | 1999-12-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B06A | Patent application procedure suspended [chapter 6.1 patent gazette] | ||
| B11B | Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements | ||
| B15K | Others concerning applications: alteration of classification |
Ipc: H04M 3/56 (2006.01) |