ES2186786T3 - Dispositivo y procedimiento de conmutacion numerica-analogica. - Google Patents
Dispositivo y procedimiento de conmutacion numerica-analogica.Info
- Publication number
- ES2186786T3 ES2186786T3 ES96920903T ES96920903T ES2186786T3 ES 2186786 T3 ES2186786 T3 ES 2186786T3 ES 96920903 T ES96920903 T ES 96920903T ES 96920903 T ES96920903 T ES 96920903T ES 2186786 T3 ES2186786 T3 ES 2186786T3
- Authority
- ES
- Spain
- Prior art keywords
- digital
- adapter
- analog
- numerical
- procedure
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
- H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
- H04Q11/0435—Details
- H04Q11/0471—Terminal access circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B14/00—Transmission systems not characterised by the medium used for transmission
- H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
- H04B14/023—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse amplitude modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
- H04L25/40—Transmitting circuits; Receiving circuits
- H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
- H04L25/4917—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using multilevel codes
- H04L25/4927—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using multilevel codes using levels matched to the quantisation levels of the channel
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
- H04L25/40—Transmitting circuits; Receiving circuits
- H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
- H04L25/497—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems by correlative coding, e.g. partial response coding or echo modulation coding transmitters and receivers for partial response systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Communication Control (AREA)
- Telephonic Communication Services (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Analogue/Digital Conversion (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Computer And Data Communications (AREA)
- Optical Communication System (AREA)
- Numerical Control (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
ESTE DISPOSITIVO DE COMUNICACION ENTRE UN ADAPTADOR DIGITAL (5) CONECTADO A UNA CENTRAL (4) POR MEDIO DE UNA INTERFAZ DIGITAL (7), EN PARTICULAR DEL TIPO RDSI, Y UN ADAPTADOR ANALOGICO (6) CONECTADO A UNA CENTRAL (3) POR MEDIO DE UNA INTERFAZ DIGITAL (8), ESTANDO DICHAS CENTRALES (3, 4) CONECTADAS POR MEDIO DE UNA RED DE TELECOMUNICACIONES (2), SE CARACTERIZA PORQUE COMPRENDE MEDIOS (11, 12; 15, 16) DE CONEXION DIRECTA ENTRE EL ADAPTADOR DIGITAL (5) Y EL ADAPTADOR ANALOGICO (6); LA INFORMACION DIGITAL DEL ADAPTADOR DIGITAL (5) SE ENVIA AL ADAPTADOR ANALOGICO (6), Y VICEVERSA, EN FORMA DIGITAL SIN EMULAR UNA SEÑAL ANALOGICA.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9512672A FR2740286B1 (fr) | 1995-10-23 | 1995-10-23 | Dispositif et procede de communication hybride numerique- analogique sur un canal telephonique |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2186786T3 true ES2186786T3 (es) | 2003-05-16 |
Family
ID=9483972
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES96920903T Expired - Lifetime ES2186786T3 (es) | 1995-10-23 | 1996-06-05 | Dispositivo y procedimiento de conmutacion numerica-analogica. |
Country Status (12)
Country | Link |
---|---|
US (1) | US7280592B1 (es) |
EP (2) | EP0857385B1 (es) |
CN (2) | CN1203718A (es) |
AT (2) | ATE227060T1 (es) |
BR (1) | BR9611199A (es) |
CA (1) | CA2235521C (es) |
DE (2) | DE69624583T2 (es) |
ES (1) | ES2186786T3 (es) |
FR (1) | FR2740286B1 (es) |
NO (2) | NO981796L (es) |
PL (2) | PL326386A1 (es) |
WO (2) | WO1997016008A1 (es) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6233275B1 (en) | 1994-12-09 | 2001-05-15 | Brent Townshend | High speed communications system for analog subscriber connections |
US5970103A (en) | 1996-09-06 | 1999-10-19 | Townshend; Brent | High speed communications system for analog subscriber connections |
KR100422965B1 (ko) | 1994-12-09 | 2004-03-12 | 브렌트 타운젠드 | 고속 데이터 전송 시스템 및 방법 |
SE515760C2 (sv) * | 1996-09-27 | 2001-10-08 | Telia Ab | Förbättringar av eller avseende dataöverföring |
US5831561A (en) * | 1997-04-29 | 1998-11-03 | Lucent Technologies Inc. | System and method for dynamically optimizing a symbol table and modem employing the same |
CN101848007B (zh) * | 2009-03-27 | 2013-06-05 | 台湾积体电路制造股份有限公司 | 用于串行接收机中的数字自适应均衡器的装置和方法 |
US11025297B2 (en) * | 2016-11-02 | 2021-06-01 | Cable Television Laboratories, Inc. | Full-duplex cancellation |
PL233729B1 (pl) * | 2017-12-11 | 2019-11-29 | Univ Slaski | Sposob transmisji rozgloszeniowej dla nadajnikow Bluetooth Low Energy |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5233410A (en) * | 1975-09-10 | 1977-03-14 | Hitachi Ltd | Receiving level automatic adjusting system |
US4032762A (en) * | 1975-10-07 | 1977-06-28 | Rockwell International Corporation | Adjustable digital filter for high speed digital transmission |
US4385379A (en) * | 1979-12-19 | 1983-05-24 | Gte Automatic Electric Labs Inc. | Digital concentrator for use with a digital telephone office |
DE3416818C1 (de) * | 1984-05-07 | 1985-07-04 | Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt | Verfahren zur Behandlung von Modem-Signalen |
CA1260641A (en) * | 1986-10-22 | 1989-09-26 | Jan Heynen | (ds) transmitter |
AU621536B2 (en) * | 1987-02-24 | 1992-03-19 | General Electric Capital Corporation | Partial response channel signaling systems |
US5134611A (en) * | 1988-09-30 | 1992-07-28 | Microcom, Inc. | Analog/digital data device and method |
US5159610A (en) * | 1989-05-12 | 1992-10-27 | Codex Corporation | Trellis precoding for modulation systems |
DE69020568D1 (de) * | 1990-10-30 | 1995-08-03 | Ibm | Selbsttrainierendes adaptives Entzerrungsverfahren und -vorrichtung. |
US5265125A (en) * | 1990-11-16 | 1993-11-23 | Matsushita Electric Industrial Co., Ltd. | Signal detection apparatus for detecting digital information from PCM signal |
JPH06132998A (ja) * | 1992-10-20 | 1994-05-13 | Fujitsu Ltd | デジタル伝送・アナログ伝送切換装置 |
US5623513A (en) * | 1993-12-13 | 1997-04-22 | Amati Communications Corporation | Mitigating clipping and quantization effects in digital transmission systems |
US5483530A (en) * | 1993-12-16 | 1996-01-09 | International Business Machines Corporation | System and method for communicating with digital and analog devices via a single digital interface |
US5528625A (en) * | 1994-01-03 | 1996-06-18 | At&T Corp. | High speed quantization-level-sampling modem with equalization arrangement |
KR100422965B1 (ko) * | 1994-12-09 | 2004-03-12 | 브렌트 타운젠드 | 고속 데이터 전송 시스템 및 방법 |
US5710790A (en) * | 1995-02-01 | 1998-01-20 | Lucent Technologies Inc. | Communication arrangement with improved echo and noise suppression in a channel containing quantization |
US5671251A (en) * | 1995-02-28 | 1997-09-23 | Motorola, Inc. | Apparatus and method for a data communications device to selectively operate as an analog modem, as a digital modem, and as a terminal adapter |
-
1995
- 1995-10-23 FR FR9512672A patent/FR2740286B1/fr not_active Expired - Fee Related
-
1996
- 1996-06-05 WO PCT/FR1996/000848 patent/WO1997016008A1/fr active IP Right Grant
- 1996-06-05 AT AT96920903T patent/ATE227060T1/de not_active IP Right Cessation
- 1996-06-05 CN CN96197810.4A patent/CN1203718A/zh active Pending
- 1996-06-05 ES ES96920903T patent/ES2186786T3/es not_active Expired - Lifetime
- 1996-06-05 EP EP96920903A patent/EP0857385B1/fr not_active Expired - Lifetime
- 1996-06-05 DE DE69624583T patent/DE69624583T2/de not_active Expired - Fee Related
- 1996-06-05 PL PL96326386A patent/PL326386A1/xx unknown
- 1996-10-23 US US09/051,687 patent/US7280592B1/en not_active Expired - Fee Related
- 1996-10-23 AT AT96934959T patent/ATE298958T1/de not_active IP Right Cessation
- 1996-10-23 CN CN96197809.0A patent/CN1272949C/zh not_active Expired - Fee Related
- 1996-10-23 PL PL96326507A patent/PL182269B1/pl unknown
- 1996-10-23 DE DE69634902T patent/DE69634902T2/de not_active Expired - Lifetime
- 1996-10-23 WO PCT/FR1996/001657 patent/WO1997016009A1/fr active IP Right Grant
- 1996-10-23 EP EP96934959A patent/EP0857386B1/fr not_active Expired - Lifetime
- 1996-10-23 CA CA002235521A patent/CA2235521C/en not_active Expired - Fee Related
- 1996-10-23 BR BR9611199-2A patent/BR9611199A/pt unknown
-
1998
- 1998-04-22 NO NO981796A patent/NO981796L/no not_active Application Discontinuation
- 1998-04-22 NO NO981797A patent/NO981797L/no not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
CN1203718A (zh) | 1998-12-30 |
ATE298958T1 (de) | 2005-07-15 |
CA2235521C (en) | 2003-10-14 |
BR9611199A (pt) | 1999-12-28 |
DE69624583D1 (de) | 2002-12-05 |
PL326507A1 (en) | 1998-09-28 |
CA2235521A1 (en) | 1997-05-01 |
WO1997016009A1 (fr) | 1997-05-01 |
NO981796D0 (no) | 1998-04-22 |
NO981796L (no) | 1998-04-23 |
PL326386A1 (en) | 1998-09-14 |
CN1272949C (zh) | 2006-08-30 |
US7280592B1 (en) | 2007-10-09 |
EP0857386B1 (fr) | 2005-06-29 |
DE69634902D1 (de) | 2005-08-04 |
NO981797D0 (no) | 1998-04-22 |
NO981797L (no) | 1998-06-22 |
DE69624583T2 (de) | 2003-06-26 |
EP0857386A1 (fr) | 1998-08-12 |
ATE227060T1 (de) | 2002-11-15 |
FR2740286A1 (fr) | 1997-04-25 |
EP0857385B1 (fr) | 2002-10-30 |
CN1203717A (zh) | 1998-12-30 |
FR2740286B1 (fr) | 1998-01-02 |
PL182269B1 (en) | 2001-12-31 |
WO1997016008A1 (fr) | 1997-05-01 |
DE69634902T2 (de) | 2006-05-18 |
EP0857385A1 (fr) | 1998-08-12 |
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