CN1123253C - 数字无线电系统、数字信号处理器和该处理器的操作方法 - Google Patents
数字无线电系统、数字信号处理器和该处理器的操作方法 Download PDFInfo
- Publication number
- CN1123253C CN1123253C CN95196891.2A CN95196891A CN1123253C CN 1123253 C CN1123253 C CN 1123253C CN 95196891 A CN95196891 A CN 95196891A CN 1123253 C CN1123253 C CN 1123253C
- Authority
- CN
- China
- Prior art keywords
- digital radio
- signal
- state
- radio devices
- transmission network
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/18—Service support devices; Network management devices
- H04W88/181—Transcoding devices; Rate adaptation devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/40—Applications of speech amplifiers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2207/00—Type of exchange or network, i.e. telephonic medium, in which the telephonic communication takes place
- H04M2207/18—Type of exchange or network, i.e. telephonic medium, in which the telephonic communication takes place wireless networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2207/00—Type of exchange or network, i.e. telephonic medium, in which the telephonic communication takes place
- H04M2207/20—Type of exchange or network, i.e. telephonic medium, in which the telephonic communication takes place hybrid systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/002—Applications of echo suppressors or cancellers in telephonic connections
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/12—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13031—Pulse code modulation, PCM
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13034—A/D conversion, code compression/expansion
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13098—Mobile subscriber
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/1319—Amplifier, attenuation circuit, echo suppressor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13292—Time division multiplexing, TDM
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
- Telephonic Communication Services (AREA)
- Time-Division Multiplex Systems (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Abstract
Description
Claims (28)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/358,949 US5768308A (en) | 1994-12-19 | 1994-12-19 | System for TDMA mobile-to-mobile VSELP codec bypass |
US08/358,949 | 1994-12-19 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNA031530613A Division CN1487679A (zh) | 1994-12-19 | 1995-12-13 | 传输系统及其操作方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1170492A CN1170492A (zh) | 1998-01-14 |
CN1123253C true CN1123253C (zh) | 2003-10-01 |
Family
ID=23411692
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNA031530613A Pending CN1487679A (zh) | 1994-12-19 | 1995-12-13 | 传输系统及其操作方法 |
CN95196891.2A Expired - Lifetime CN1123253C (zh) | 1994-12-19 | 1995-12-13 | 数字无线电系统、数字信号处理器和该处理器的操作方法 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNA031530613A Pending CN1487679A (zh) | 1994-12-19 | 1995-12-13 | 传输系统及其操作方法 |
Country Status (8)
Country | Link |
---|---|
US (3) | US5768308A (zh) |
EP (1) | EP0799554B1 (zh) |
JP (2) | JP3638609B2 (zh) |
CN (2) | CN1487679A (zh) |
CA (2) | CA2207550C (zh) |
DE (1) | DE69528847T2 (zh) |
MX (1) | MX9704512A (zh) |
WO (1) | WO1996019907A1 (zh) |
Families Citing this family (85)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5768308A (en) * | 1994-12-19 | 1998-06-16 | Northern Telecom Limited | System for TDMA mobile-to-mobile VSELP codec bypass |
GB9514956D0 (en) * | 1995-07-21 | 1995-09-20 | British Telecomm | Transmission of digital signals |
DE19544367A1 (de) * | 1995-11-29 | 1997-06-05 | Bosch Gmbh Robert | Verfahren zum Übertragen von Daten, insbesondere von GSM-Daten |
GB2316277B (en) * | 1996-08-09 | 2001-03-14 | Motorola Ltd | Transcoder and method for a non-tandem coding operation |
FR2756443B1 (fr) * | 1996-11-28 | 1998-12-24 | Nortel Matra Cellular | Dispositif de transcodage pourvu d'une derivation |
US6038458A (en) * | 1996-12-30 | 2000-03-14 | Nokia Telecommunications Oy | Method for selecting a signal, and a cellular radio system |
FI105864B (fi) * | 1997-04-18 | 2000-10-13 | Nokia Networks Oy | Kaiunpoistomekanismi |
US5970086A (en) * | 1997-05-22 | 1999-10-19 | Itt Manufacturing Enterprises | Radio remote interface for modulating/demodulating data in a digital communication system |
US5995923A (en) * | 1997-06-26 | 1999-11-30 | Nortel Networks Corporation | Method and apparatus for improving the voice quality of tandemed vocoders |
KR100248272B1 (ko) * | 1997-06-30 | 2000-03-15 | 김영환 | 보코더의 pcm데이터형식에 따른 바이패스모드 동작시기의 제어방법 |
US5857167A (en) * | 1997-07-10 | 1999-01-05 | Coherant Communications Systems Corp. | Combined speech coder and echo canceler |
US6138022A (en) * | 1997-07-23 | 2000-10-24 | Nortel Networks Corporation | Cellular communication network with vocoder sharing feature |
JPH1155716A (ja) * | 1997-07-31 | 1999-02-26 | Nec Corp | コーデックスルーシステム |
US6363339B1 (en) | 1997-10-10 | 2002-03-26 | Nortel Networks Limited | Dynamic vocoder selection for storing and forwarding voice signals |
JPH11136710A (ja) * | 1997-10-28 | 1999-05-21 | Fujitsu Ltd | セル伝送ネットワークにおける通信データのディジタル1リンク中継システム |
US6009383A (en) * | 1997-10-30 | 1999-12-28 | Nortel Networks Corporation | Digital connection for voice activated services on wireless networks |
US6172974B1 (en) * | 1997-10-31 | 2001-01-09 | Nortel Networks Limited | Network element having tandem free operation capabilities |
US5995849A (en) * | 1997-11-26 | 1999-11-30 | Direct Wireless Communication Corp. | Direct wireless communication system and method of operation |
US6078809A (en) * | 1998-02-27 | 2000-06-20 | Motorola, Inc. | Method and apparatus for performing a multi-party communication in a communication system |
JPH11261566A (ja) * | 1998-03-09 | 1999-09-24 | Fujitsu Ltd | 画像伝送装置 |
US6295302B1 (en) | 1998-04-24 | 2001-09-25 | Telefonaktiebolaget L M Ericsson (Publ) | Alternating speech and data transmission in digital communications systems |
JP3219051B2 (ja) * | 1998-05-08 | 2001-10-15 | 日本電気株式会社 | 半導体装置の製造方法 |
US6353666B1 (en) | 1998-05-21 | 2002-03-05 | Conexant Systems, Inc. | System and method for providing an enhanced audio quality telecommunication session |
US6324515B1 (en) | 1998-06-02 | 2001-11-27 | Nortel Networks Limited | Method and apparatus for asymmetric communication of compressed speech |
DE19833318C2 (de) | 1998-07-24 | 2001-08-02 | Bosch Gmbh Robert | Verfahren zur Übertragung von digitalen Nutzdaten |
ATE385143T1 (de) * | 1998-08-21 | 2008-02-15 | Motorola Inc | Verfahren und vorrichtung zur kontrolle einer sprachkodierumgehung mittels inbandsignalisierung |
US6091969A (en) * | 1998-08-21 | 2000-07-18 | Motorola, Inc. | Method and apparatus for inband signaling control of vocoder bypass |
US7047185B1 (en) * | 1998-09-15 | 2006-05-16 | Skyworks Solutions, Inc. | Method and apparatus for dynamically switching between speech coders of a mobile unit as a function of received signal quality |
US6377807B1 (en) * | 1998-10-20 | 2002-04-23 | Telefonaktiebolaget Lm Ericsson (Publ) | Hierarchical message addressing scheme |
FI107109B (fi) * | 1998-10-21 | 2001-05-31 | Nokia Networks Oy | Digitaalinen tietoliikennejärjestelmä |
CA2290307A1 (en) * | 1998-12-22 | 2000-06-22 | Nortel Networks Corporation | A method and apparatus for efficient bandwidth usage in a packet switching network |
US6657996B1 (en) * | 1999-04-21 | 2003-12-02 | Telogy Networks, Inc. | Apparatus and method for improving voice quality by removing tandem codecs in a voice communication link |
US6483857B1 (en) * | 1999-05-07 | 2002-11-19 | Nortel Networks Limited | Method and apparatus for transmitting control information over an audio data stream |
US6721707B1 (en) * | 1999-05-14 | 2004-04-13 | Nortel Networks Limited | Method and apparatus for controlling the transition of an audio converter between two operative modes in the presence of link impairments in a data communication channel |
US6766291B2 (en) | 1999-06-18 | 2004-07-20 | Nortel Networks Limited | Method and apparatus for controlling the transition of an audio signal converter between two operative modes based on a certain characteristic of the audio input signal |
FI107211B (fi) * | 1999-07-09 | 2001-06-15 | Nokia Networks Oy | Menetelmä koodaustiedon välittämiseksi pakettiverkon yli |
US6868385B1 (en) * | 1999-10-05 | 2005-03-15 | Yomobile, Inc. | Method and apparatus for the provision of information signals based upon speech recognition |
US6795405B1 (en) | 1999-12-27 | 2004-09-21 | Telogy Networks, Inc. | Digital modem echo canceler enhancement |
US7177287B1 (en) * | 2000-01-05 | 2007-02-13 | Advanded Micro Devices, Inc. | System and method for concurrent wireless voice and data communications |
EP1124386A1 (en) * | 2000-02-11 | 2001-08-16 | Telefonaktiebolaget Lm Ericsson | Tone signalling with TFO communication links |
EP1126651A1 (en) * | 2000-02-16 | 2001-08-22 | Lucent Technologies Inc. | Link adaptation for RT-EGPRS |
AU2000244000A1 (en) * | 2000-04-11 | 2001-10-23 | Nokia Corporation | Application of rtp and rtcp in the amr transport in voice over ip networks |
US7050575B1 (en) * | 2000-06-16 | 2006-05-23 | Ericsson Inc. | Echo canceler coefficient update apparatus and method |
US20150117441A1 (en) * | 2013-10-28 | 2015-04-30 | Michael Pascazi | System and method for cell phone to cell phone signal transmission via the internet |
US6785339B1 (en) | 2000-10-31 | 2004-08-31 | Motorola, Inc. | Method and apparatus for providing speech quality based packet enhancement in packet switched networks |
US7006456B2 (en) * | 2001-02-02 | 2006-02-28 | Nortel Networks Limited | Method and apparatus for packet-based media communication |
US7076316B2 (en) * | 2001-02-02 | 2006-07-11 | Nortel Networks Limited | Method and apparatus for controlling an operative setting of a communications link |
US7289461B2 (en) * | 2001-03-15 | 2007-10-30 | Qualcomm Incorporated | Communications using wideband terminals |
US7593432B2 (en) * | 2001-03-31 | 2009-09-22 | Redback Networks Inc. | Method and apparatus for deframing signals |
US6941381B2 (en) * | 2001-03-31 | 2005-09-06 | Redback Networks Inc. | Method and apparatus for sync hunting signals |
US6950446B2 (en) * | 2001-03-31 | 2005-09-27 | Redback Networks Inc. | Method and apparatus for simultaneously sync hunting signals |
CA2344904A1 (en) * | 2001-04-23 | 2002-10-23 | Bruno Richard Preiss | Interactive voice response system and method |
JP4149143B2 (ja) | 2001-06-13 | 2008-09-10 | 富士通株式会社 | 移動通信システムのシグナリング通信方法 |
JP4362261B2 (ja) | 2002-01-17 | 2009-11-11 | 日本電気通信システム株式会社 | 音声符号制御方法 |
US7522586B2 (en) * | 2002-05-22 | 2009-04-21 | Broadcom Corporation | Method and system for tunneling wideband telephony through the PSTN |
US20040131051A1 (en) * | 2002-09-06 | 2004-07-08 | Rafi Rabipour | Methods and apparatus for data communication |
US7639601B2 (en) | 2002-07-05 | 2009-12-29 | Nortel Networks Limited | Methods and apparatus for data communication |
US6879833B2 (en) * | 2002-07-11 | 2005-04-12 | Sprint Spectrum L.P. | Method and system for vocoder bypass using differentiated telephone numbers |
US6865391B1 (en) * | 2002-07-11 | 2005-03-08 | Sprint Spectrum L.P. | Method and system for vocoder bypass using electronic serial numbers |
US20040037314A1 (en) * | 2002-08-23 | 2004-02-26 | Spear Stephen L. | Method and communication network for cross coding between codecs |
US7203226B1 (en) | 2002-11-14 | 2007-04-10 | Nortel Networks Limited | Methods and apparatus for data communication |
US7406096B2 (en) * | 2002-12-06 | 2008-07-29 | Qualcomm Incorporated | Tandem-free intersystem voice communication |
US7251480B1 (en) * | 2003-02-05 | 2007-07-31 | Sprint Spectrum L.P. | Method and system of sending a voice message in a wireless communication network |
WO2004075582A1 (en) * | 2003-02-21 | 2004-09-02 | Nortel Networks Limited | Data communication apparatus and method for establishing a codec-bypass connection |
US8059663B1 (en) | 2003-07-10 | 2011-11-15 | Sprint Spectrum L.P. | Gateway-based system and method for tandem free operation |
US7586868B2 (en) * | 2003-07-14 | 2009-09-08 | Motorola, Inc | Method and apparatus for controlling distributed transcoders |
CN100382551C (zh) * | 2003-09-08 | 2008-04-16 | 大唐移动通信设备有限公司 | 一种对通信系统消息进行编解码的方法 |
FR2866499B1 (fr) * | 2004-02-12 | 2006-05-26 | Cit Alcatel | Procede pour le transport de parole compressee en mode paquet dans le reseau coeur d'infrastructures de communication avec des mobiles |
WO2005089055A2 (en) * | 2004-03-19 | 2005-09-29 | Nortel Networks Limited | Communicating processing capabilites along a communications path |
US8027265B2 (en) * | 2004-03-19 | 2011-09-27 | Genband Us Llc | Providing a capability list of a predefined format in a communications network |
US7089011B1 (en) | 2004-05-11 | 2006-08-08 | Sprint Spectrum L.P. | Method and system for selective call routing for transcoder free operation |
US7328027B1 (en) | 2004-05-11 | 2008-02-05 | Sprint Spectrum L.P. | Method for vocoder selection based on loads in coverage areas of a wireless wide area network |
DE602004017603D1 (de) * | 2004-09-03 | 2008-12-18 | Harman Becker Automotive Sys | Sprachsignalverarbeitung für die gemeinsame adaptive Reduktion von Störgeräuschen und von akustischen Echos |
DE102005005561A1 (de) * | 2005-02-07 | 2006-08-10 | Siemens Ag | Verfahren zur Übertragung von Sprachsignalen, zugehöriges Kommunikationssystem sowie zugehörige Netzwerkeinheit |
CN100484304C (zh) * | 2006-03-29 | 2009-04-29 | 华为技术有限公司 | 实现分组-分组模型会话的方法和媒体网关 |
US8300781B1 (en) * | 2006-04-28 | 2012-10-30 | At&T Intellectual Property Ii, L.P. | Method and apparatus for retrieving all voicemail messages at the same time |
KR100744567B1 (ko) * | 2006-09-29 | 2007-08-01 | 한국전자통신연구원 | 멀티 네트워크 멀티 코덱 환경에서 트랜스코딩 횟수를최소화하는 장치 및 방법 |
CN100456893C (zh) * | 2006-09-30 | 2009-01-28 | 华为技术有限公司 | 一种语音数据的承载方法及系统 |
EP2108193B1 (en) | 2006-12-28 | 2018-08-15 | Genband US LLC | Methods, systems, and computer program products for silence insertion descriptor (sid) conversion |
US8908541B2 (en) * | 2009-08-04 | 2014-12-09 | Genband Us Llc | Methods, systems, and computer readable media for intelligent optimization of digital signal processor (DSP) resource utilization in a media gateway |
US8462193B1 (en) * | 2010-01-08 | 2013-06-11 | Polycom, Inc. | Method and system for processing audio signals |
US8548460B2 (en) * | 2010-05-25 | 2013-10-01 | Qualcomm Incorporated | Codec deployment using in-band signals |
US9237172B2 (en) | 2010-05-25 | 2016-01-12 | Qualcomm Incorporated | Application notification and service selection using in-band signals |
US10499229B2 (en) * | 2016-01-24 | 2019-12-03 | Qualcomm Incorporated | Enhanced fallback to in-band mode for emergency calling |
CN111325957B (zh) * | 2018-12-13 | 2021-09-03 | 比亚迪股份有限公司 | 微控制单元及dtmf报警信号输出方法和系统 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2032325C (en) * | 1990-12-14 | 1998-07-07 | Leo Strawczynski | Intra-cell call hand-over in radio communication systems with dynamic channel allocation |
JPH04216265A (ja) | 1990-12-17 | 1992-08-06 | Tokyo Electric Co Ltd | ファクシミリ装置のモード切替え方式 |
JP2680198B2 (ja) * | 1991-02-08 | 1997-11-19 | 三菱電機株式会社 | 音声ディジタル1リンク接続方式 |
US5499240A (en) * | 1994-03-09 | 1996-03-12 | British Telecommunications Public Limited Company | Switched communication network with bandwidth managers for achieving end-to-end data compression during transport |
US5608779A (en) * | 1994-11-08 | 1997-03-04 | Motorola, Inc. | Method for communications between mobile units using single and multiple switching center configurations |
FI98972C (fi) * | 1994-11-21 | 1997-09-10 | Nokia Telecommunications Oy | Digitaalinen matkaviestinjärjestelmä |
US5768308A (en) * | 1994-12-19 | 1998-06-16 | Northern Telecom Limited | System for TDMA mobile-to-mobile VSELP codec bypass |
US5956673A (en) * | 1995-01-25 | 1999-09-21 | Weaver, Jr.; Lindsay A. | Detection and bypass of tandem vocoding using detection codes |
US5563912A (en) * | 1995-02-27 | 1996-10-08 | Nec Corporation | High efficiency speech coding apparatus and transit switching system employing the same |
US5987327A (en) * | 1996-09-16 | 1999-11-16 | Motorola, Inc. | Method for establishing communications in wireless communication systems having multiple switching centers |
US5995923A (en) * | 1997-06-26 | 1999-11-30 | Nortel Networks Corporation | Method and apparatus for improving the voice quality of tandemed vocoders |
US6138022A (en) * | 1997-07-23 | 2000-10-24 | Nortel Networks Corporation | Cellular communication network with vocoder sharing feature |
US6363339B1 (en) * | 1997-10-10 | 2002-03-26 | Nortel Networks Limited | Dynamic vocoder selection for storing and forwarding voice signals |
US6172974B1 (en) * | 1997-10-31 | 2001-01-09 | Nortel Networks Limited | Network element having tandem free operation capabilities |
US6272358B1 (en) * | 1998-06-04 | 2001-08-07 | Lucent Technologies Inc. | Vocoder by-pass for digital mobile-to-mobile calls |
US6657996B1 (en) * | 1999-04-21 | 2003-12-02 | Telogy Networks, Inc. | Apparatus and method for improving voice quality by removing tandem codecs in a voice communication link |
US6766291B2 (en) * | 1999-06-18 | 2004-07-20 | Nortel Networks Limited | Method and apparatus for controlling the transition of an audio signal converter between two operative modes based on a certain characteristic of the audio input signal |
FI20000212A (fi) * | 2000-02-01 | 2001-08-02 | Nokia Networks Oy | Yhteydenmuodostusneuvottelu tietoliikennejärjestelmässä |
-
1994
- 1994-12-19 US US08/358,949 patent/US5768308A/en not_active Expired - Lifetime
-
1995
- 1995-12-13 CA CA2207550A patent/CA2207550C/en not_active Expired - Lifetime
- 1995-12-13 JP JP51938096A patent/JP3638609B2/ja not_active Expired - Lifetime
- 1995-12-13 DE DE69528847T patent/DE69528847T2/de not_active Expired - Lifetime
- 1995-12-13 CN CNA031530613A patent/CN1487679A/zh active Pending
- 1995-12-13 CA CA2732583A patent/CA2732583C/en not_active Expired - Lifetime
- 1995-12-13 MX MX9704512A patent/MX9704512A/es unknown
- 1995-12-13 EP EP95940103A patent/EP0799554B1/en not_active Expired - Lifetime
- 1995-12-13 CN CN95196891.2A patent/CN1123253C/zh not_active Expired - Lifetime
- 1995-12-13 WO PCT/CA1995/000704 patent/WO1996019907A1/en active IP Right Grant
-
1998
- 1998-06-12 US US09/096,192 patent/US6185424B1/en not_active Expired - Lifetime
-
2000
- 2000-01-28 JP JP2000020587A patent/JP2000232409A/ja active Pending
-
2002
- 2002-01-02 US US10/033,589 patent/US7023819B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2732583A1 (en) | 1996-06-27 |
CA2207550A1 (en) | 1996-06-27 |
WO1996019907A1 (en) | 1996-06-27 |
US6185424B1 (en) | 2001-02-06 |
US5768308A (en) | 1998-06-16 |
JPH10500829A (ja) | 1998-01-20 |
CA2207550C (en) | 2011-05-03 |
EP0799554B1 (en) | 2002-11-13 |
US20020054571A1 (en) | 2002-05-09 |
CN1170492A (zh) | 1998-01-14 |
DE69528847D1 (de) | 2002-12-19 |
CA2732583C (en) | 2012-09-04 |
MX9704512A (es) | 1997-10-31 |
DE69528847T2 (de) | 2003-03-20 |
CN1487679A (zh) | 2004-04-07 |
EP0799554A1 (en) | 1997-10-08 |
JP3638609B2 (ja) | 2005-04-13 |
US7023819B2 (en) | 2006-04-04 |
JP2000232409A (ja) | 2000-08-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN1123253C (zh) | 数字无线电系统、数字信号处理器和该处理器的操作方法 | |
CN1130086C (zh) | 通过可变延迟信道提供时间敏感消息的方法和设备 | |
EP0909081B1 (en) | Method and apparatus for storing and forwarding voice signals | |
JP2002513249A (ja) | ディジタル通信システム内での音声およびデータ送信切換 | |
CN1195446A (zh) | 家庭个人通讯系统 | |
CN1145013A (zh) | 在无线蜂窝系统中传输话音信息的方法 | |
JPH0738617B2 (ja) | コーデックとその操作方法、及び通信システム | |
CN102474396A (zh) | 用于无线带内信令系统中数据传输的高效纠错方案 | |
CA2227273C (en) | Transmission of data on multirate networks | |
CN101160983B (zh) | 一种数据流处理的方法、装置和系统 | |
CN106921654A (zh) | 一种4g无线传真装置、系统及其ip语音处理方法 | |
CN1212740C (zh) | 带有自动应答电话功能的便携蜂窝式电话系统 | |
CN1250580A (zh) | 传输方法和蜂窝式无线电系统 | |
CN1121798C (zh) | 用于固定无线通信系统的呼叫建立装置和方法 | |
US6947765B1 (en) | Method for transmitting data between data processing means and a radio communication network, module and mobile terminal for implementing same | |
CN1071071C (zh) | 一种兼具普通电话和免代理直拨互联网电话功能的方法及其装置 | |
JPS58134549A (ja) | デイジタル電話通信方式 | |
Dean et al. | Toward a North American Standard for mobile data services | |
CN102497625A (zh) | 短消息处理方法、装置及系统 | |
JPH01105627A (ja) | 音声コーデック間通信制御方式 | |
JP2001136553A (ja) | 電話交換装置 | |
JPH1165956A (ja) | 画像通信サービス用ネットワークシステム | |
JPH09307936A (ja) | 無線呼出システム | |
JP2001007932A (ja) | 音声符号化装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C53 | Correction of patent of invention or patent application | ||
CB02 | Change of applicant information |
Applicant after: NORTEL NETWORKS Ltd. Applicant before: Northern Telecom Ltd. |
|
COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: NORTHERN TELECOM LTD. TO: NORTEL NETWORKS LTD. |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: RESEARCH IN MOTION LTD. Free format text: FORMER OWNER: 2256355 ONTARIO LIMITED Effective date: 20130109 Owner name: YANXING BIDEKE CO., LTD. Free format text: FORMER OWNER: NORTEL NETWORKS LTD (CA) Effective date: 20130109 Owner name: 2256355 ONTARIO LIMITED Free format text: FORMER OWNER: YANXING BIDEKE CO., LTD. Effective date: 20130109 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20130109 Address after: Voight, Ontario, Canada Patentee after: RESEARCH IN MOTION Ltd. Address before: Ontario Patentee before: 2256355 Ontario Limited Effective date of registration: 20130109 Address after: Ontario Patentee after: 2256355 Ontario Limited Address before: American New York Patentee before: NORTEL NETWORKS LTD. Effective date of registration: 20130109 Address after: American New York Patentee after: NORTEL NETWORKS LTD. Address before: Quebec Patentee before: NORTEL NETWORKS Ltd. |
|
CX01 | Expiry of patent term |
Granted publication date: 20031001 |
|
EXPY | Termination of patent right or utility model |