ES2102938B1 - Sistema de reduccion de fluctuaciones de fase en demultiplexores digitales. - Google Patents
Sistema de reduccion de fluctuaciones de fase en demultiplexores digitales.Info
- Publication number
- ES2102938B1 ES2102938B1 ES09400667A ES9400667A ES2102938B1 ES 2102938 B1 ES2102938 B1 ES 2102938B1 ES 09400667 A ES09400667 A ES 09400667A ES 9400667 A ES9400667 A ES 9400667A ES 2102938 B1 ES2102938 B1 ES 2102938B1
- Authority
- ES
- Spain
- Prior art keywords
- write
- read
- rck
- phc
- frequency
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/07—Synchronising arrangements using pulse stuffing for systems with different or fluctuating information rates or bit rates
- H04J3/076—Bit and byte stuffing, e.g. SDH/PDH desynchronisers, bit-leaking
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Time-Division Multiplex Systems (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Optical Communication System (AREA)
- Manipulation Of Pulses (AREA)
- Dc Digital Transmission (AREA)
Abstract
SISTEMA DE REDUCCION DE FLUCTUACIONES DE FASE EN DEMULTIPLEXORES DIGITALES. COMPUESTO POR UN SUBCONJUNTO DE ESCRITURA-LECTURA ELASTICA DE MEMORIA (EM, WP, WA, RP, RA), CUYO RELOJ DE LECTURA (RCK) VARIA SU FRECUENCIA CON LA SEÑAL OBTENIDO POR UN DETECTOR DE FASE (PHC) EN FUNCION DE LA DIFERENCIA TEMPORAL EN QUE DOS PUNTEROS, DE LECTURA (RP) Y ESCRITURA (WP) TOMAN RESPECTIVAMENTE UNOS VALORES DE REFERENCIA. CUANDO EL INSTANTE EN QUE EL PUNTERO DE ESCRITURA (WP) TOMA EL VALOR DE REFERENCIA DE ESCRITURA SE ADELANTA O ATRASA UN CICLO DE RELOJ DE ESCRITURA (WCK), CON RESPECTO A PERIODOS ANTERIORES, DICHA REFERENCIA SE INCREMENTA O DECREMENTO EL MISMO NUMERO DE UNIDADES, DE FORMA QUE NO SE MODIFICA LA COMPONENTE CONTINUA DE LA SEÑAL DE SALIDA DEL DETECTOR DE FASE (PHC) DE FORMA BRUSCA; SINO QUE GRADUALMENTE Y MEDIANTE FRACCIONES DE LA REFERENCIA DE LECTURA, ESTA SE INCREMENTA O SE DECREMENTO PARA PRODUCIR UNA VARIACION SUAVE DE LA FRECUENCIA DEL RELOJ DE LECTURA (RCK) QUE COMPENSA LAS DIFERENCIASDE FLUJOS NETOS DE ENTRADA Y SALIDA DE DATOS DE LA MEMORIA ELASTICA (EM).
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES09400667A ES2102938B1 (es) | 1994-03-28 | 1994-03-28 | Sistema de reduccion de fluctuaciones de fase en demultiplexores digitales. |
AU14718/95A AU697719B2 (en) | 1994-03-28 | 1995-03-08 | Jitter reduction |
AT95104189T ATE245872T1 (de) | 1994-03-28 | 1995-03-22 | System zur verminderung von jitter in einem digitalen demultiplexer |
EP95104189A EP0675613B1 (en) | 1994-03-28 | 1995-03-22 | Jitter reduction system in digital demultiplexers |
DE69531320T DE69531320T2 (de) | 1994-03-28 | 1995-03-22 | System zur Verminderung von Jitter in einem digitalen Demultiplexer |
CA002145595A CA2145595A1 (en) | 1994-03-28 | 1995-03-27 | Jitter reduction system in digital demultiplexers |
US08/412,129 US5598445A (en) | 1994-03-28 | 1995-03-28 | Jitter reduction system in digital demultiplexers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES09400667A ES2102938B1 (es) | 1994-03-28 | 1994-03-28 | Sistema de reduccion de fluctuaciones de fase en demultiplexores digitales. |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2102938A1 ES2102938A1 (es) | 1997-08-01 |
ES2102938B1 true ES2102938B1 (es) | 1998-04-16 |
Family
ID=8285730
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES09400667A Expired - Fee Related ES2102938B1 (es) | 1994-03-28 | 1994-03-28 | Sistema de reduccion de fluctuaciones de fase en demultiplexores digitales. |
Country Status (7)
Country | Link |
---|---|
US (1) | US5598445A (es) |
EP (1) | EP0675613B1 (es) |
AT (1) | ATE245872T1 (es) |
AU (1) | AU697719B2 (es) |
CA (1) | CA2145595A1 (es) |
DE (1) | DE69531320T2 (es) |
ES (1) | ES2102938B1 (es) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5784377A (en) | 1993-03-09 | 1998-07-21 | Hubbell Incorporated | Integrated digital loop carrier system with virtual tributary mapper circuit |
US5883900A (en) * | 1994-03-23 | 1999-03-16 | Gpt Limited | Telecommunications transmission |
US5901149A (en) * | 1994-11-09 | 1999-05-04 | Sony Corporation | Decode and encode system |
GB9509216D0 (en) * | 1995-05-05 | 1995-06-28 | Plessey Telecomm | Retiming arrangement for SDH data transmission system |
US6061411A (en) * | 1995-12-22 | 2000-05-09 | Compaq Computer Corporation | Method and apparatus for synchronizing a serial bus clock to a serial bus function clock |
US5761203A (en) * | 1996-04-04 | 1998-06-02 | Lucent Technologies Inc. | Synchronous and asynchronous recovery of signals in an ATM network |
JP3442228B2 (ja) * | 1996-08-29 | 2003-09-02 | 松下電器産業株式会社 | 同期保持装置 |
US6389553B1 (en) * | 1998-05-26 | 2002-05-14 | Nortel Networks Limited | Redundant link delay maintenance circuit and method |
US6816934B2 (en) * | 2000-12-22 | 2004-11-09 | Hewlett-Packard Development Company, L.P. | Computer system with registered peripheral component interconnect device for processing extended commands and attributes according to a registered peripheral component interconnect protocol |
US6512804B1 (en) | 1999-04-07 | 2003-01-28 | Applied Micro Circuits Corporation | Apparatus and method for multiple serial data synchronization using channel-lock FIFO buffers optimized for jitter |
US6937621B2 (en) * | 2001-02-21 | 2005-08-30 | Integrated Device Technology, Inc. | Apparatus and method for determining byte gain and loss adjustments in a SONET/SDH network element |
KR100770906B1 (ko) * | 2006-02-10 | 2007-10-26 | 삼성전자주식회사 | 비디오 패킷의 출력 비트레이트 조절 방법 및 장치 |
US10013375B2 (en) | 2014-08-04 | 2018-07-03 | Samsung Electronics Co., Ltd. | System-on-chip including asynchronous interface and driving method thereof |
JP6929995B1 (ja) * | 2020-06-15 | 2021-09-01 | Nttエレクトロニクス株式会社 | データ転送回路及び通信装置 |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1074199B (it) * | 1976-12-23 | 1985-04-17 | Italiana Telecomunicazioni Ora | Memoria elastica per la soppressione del disturbo di fase (jitter)nei sistemi di trasmissione per segnali digitali |
JPS6214546A (ja) * | 1985-07-12 | 1987-01-23 | Nec Corp | 準同期バツフア制御方式 |
US5033064A (en) * | 1988-12-09 | 1991-07-16 | Transwitch Corporation | Clock dejitter circuit for regenerating DS1 signal |
US5359605A (en) * | 1989-06-22 | 1994-10-25 | U.S. Philips Corporation | Circuit arrangement for adjusting the bit rates of two signals |
DE4014815A1 (de) * | 1990-05-09 | 1991-11-14 | Ant Nachrichtentech | Anordnung und verfahren zum abbilden eines ersten nutzsignals aus dem rahmen eines ersten digitalsignals mittels impulsstopftechnik in den rahmen eines zweiten digitalsignals |
US5313502A (en) * | 1990-05-09 | 1994-05-17 | Ant Nachrichtentechnik Gmbh | Arrangement for imaging a useful signal from the frame of a first digital signal at a first bite rate into the frame of a second digital signal at a second bite rate |
DE4014814A1 (de) * | 1990-05-09 | 1991-11-21 | Ant Nachrichtentech | Verfahren und anordnung zur reduktion von wartezeitjitter |
DE4016189A1 (de) * | 1990-05-19 | 1991-11-28 | Philips Patentverwaltung | Einrichtung zur phasenjitterreduzierung |
JP2777929B2 (ja) * | 1990-07-04 | 1998-07-23 | 富士通株式会社 | 非同期信号抽出回路 |
SE466474B (sv) * | 1990-07-10 | 1992-02-17 | Ericsson Telefon Ab L M | Faslaasningskrets foer jitterreducering i digitalt multiplexsystem |
US5052025A (en) * | 1990-08-24 | 1991-09-24 | At&T Bell Laboratories | Synchronous digital signal to asynchronous digital signal desynchronizer |
FR2668323B1 (fr) * | 1990-10-17 | 1993-01-15 | Telecommunications Sa | Dispositif de reduction de la gigue due aux sauts de pointeurs dans un reseau de telecommunications numeriques. |
IT1244350B (it) * | 1990-12-21 | 1994-07-08 | Telettra Spa | Metodo per la riduzione del rumore di fase introdotto nella resincronizzazione di segnali digitali mediante giustificazione, e circuiti integrati per l'implementazione del metodo |
DE69228775T2 (de) * | 1991-02-08 | 1999-09-02 | Nec Corp | Verteilte Bit für Bit Entstopfungsschaltung für bytegestopfte Mehrfachrahmendaten |
US5126693A (en) * | 1991-09-09 | 1992-06-30 | Motorola, Inc. | Circuit and method of reducing phase jitter in a phase lock loop |
US5200982A (en) * | 1991-10-02 | 1993-04-06 | Alcatel Network Systems, Inc. | In-line piece-wise linear desynchronizer |
US5267236A (en) * | 1991-12-16 | 1993-11-30 | Alcatel Network Systems, Inc. | Asynchronous parallel data formatter |
US5272703A (en) * | 1991-12-16 | 1993-12-21 | Alcatel Network Systems, Inc. | N-bit parallel input to variable-bit parallel output shift register |
FI90709C (fi) * | 1992-02-14 | 1994-03-10 | Nokia Telecommunications Oy | Järjestely osoitinvärinän vaimentamiseksi desynkronisaattorissa |
FI95636C (fi) * | 1992-02-14 | 1996-02-26 | Nokia Telecommunications Oy | Desynkronisaattori ja menetelmä osoitinvärinän vaimentamiseksi desynkronisaattorissa |
US5404380A (en) * | 1992-08-25 | 1995-04-04 | Alcatel Network Systems, Inc. | Desynchronizer for adjusting the read data rate of payload data received over a digital communication network transmitting payload data within frames |
US5285206A (en) * | 1992-08-25 | 1994-02-08 | Alcatel Network Systems, Inc. | Phase detector for elastic store |
US5402452A (en) * | 1992-08-25 | 1995-03-28 | Alcatel Network Systems, Inc. | Incremental phase smoothing desynchronizer and calculation apparatus |
US5349310A (en) * | 1993-06-09 | 1994-09-20 | Alcatel Network Systems, Inc. | Digitally controlled fractional frequency synthesizer |
US5457717A (en) * | 1993-11-29 | 1995-10-10 | Dsc Communications Corporation | Apparatus and method for eliminating mapping jitter |
-
1994
- 1994-03-28 ES ES09400667A patent/ES2102938B1/es not_active Expired - Fee Related
-
1995
- 1995-03-08 AU AU14718/95A patent/AU697719B2/en not_active Ceased
- 1995-03-22 AT AT95104189T patent/ATE245872T1/de not_active IP Right Cessation
- 1995-03-22 EP EP95104189A patent/EP0675613B1/en not_active Expired - Lifetime
- 1995-03-22 DE DE69531320T patent/DE69531320T2/de not_active Expired - Lifetime
- 1995-03-27 CA CA002145595A patent/CA2145595A1/en not_active Abandoned
- 1995-03-28 US US08/412,129 patent/US5598445A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
AU1471895A (en) | 1995-10-05 |
EP0675613A3 (en) | 1998-07-08 |
AU697719B2 (en) | 1998-10-15 |
EP0675613A2 (en) | 1995-10-04 |
DE69531320T2 (de) | 2004-03-04 |
ES2102938A1 (es) | 1997-08-01 |
CA2145595A1 (en) | 1995-09-29 |
US5598445A (en) | 1997-01-28 |
ATE245872T1 (de) | 2003-08-15 |
DE69531320D1 (de) | 2003-08-28 |
EP0675613B1 (en) | 2003-07-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EC2A | Search report published |
Date of ref document: 19970801 Kind code of ref document: A1 Effective date: 19970801 |
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FD2A | Announcement of lapse in spain |
Effective date: 20180806 |