DE69533620D1 - Zweistufige taktfilterschaltung zur regenerierung eines e4 nachrichtensignals aus der datenkomponente eines sts-3c signals - Google Patents
Zweistufige taktfilterschaltung zur regenerierung eines e4 nachrichtensignals aus der datenkomponente eines sts-3c signalsInfo
- Publication number
- DE69533620D1 DE69533620D1 DE69533620T DE69533620T DE69533620D1 DE 69533620 D1 DE69533620 D1 DE 69533620D1 DE 69533620 T DE69533620 T DE 69533620T DE 69533620 T DE69533620 T DE 69533620T DE 69533620 D1 DE69533620 D1 DE 69533620D1
- Authority
- DE
- Germany
- Prior art keywords
- signal
- sts
- regenerating
- filter circuit
- data component
- 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
- 230000001172 regenerating effect Effects 0.000 title 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F5/00—Methods or arrangements for data conversion without changing the order or content of the data handled
- G06F5/06—Methods or arrangements for data conversion without changing the order or content of the data handled for changing the speed of data flow, i.e. speed regularising or timing, e.g. delay lines, FIFO buffers; over- or underrun control therefor
- G06F5/10—Methods or arrangements for data conversion without changing the order or content of the data handled for changing the speed of data flow, i.e. speed regularising or timing, e.g. delay lines, FIFO buffers; over- or underrun control therefor having a sequence of storage locations each being individually accessible for both enqueue and dequeue operations, e.g. using random access memory
- G06F5/12—Means for monitoring the fill level; Means for resolving contention, i.e. conflicts between simultaneous enqueue and dequeue operations
-
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2205/00—Indexing scheme relating to group G06F5/00; Methods or arrangements for data conversion without changing the order or content of the data handled
- G06F2205/06—Indexing scheme relating to groups G06F5/06 - G06F5/16
- G06F2205/061—Adapt frequency, i.e. clock frequency at one side is adapted to clock frequency, or average clock frequency, at the other side; Not pulse stuffing only
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2205/00—Indexing scheme relating to group G06F5/00; Methods or arrangements for data conversion without changing the order or content of the data handled
- G06F2205/12—Indexing scheme relating to groups G06F5/12 - G06F5/14
- G06F2205/126—Monitoring of intermediate fill level, i.e. with additional means for monitoring the fill level, e.g. half full flag, almost empty flag
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Time-Division Multiplex Systems (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US272259 | 1994-07-08 | ||
US08/272,259 US5548534A (en) | 1994-07-08 | 1994-07-08 | Two stage clock dejitter circuit for regenerating an E4 telecommunications signal from the data component of an STS-3C signal |
PCT/US1995/008260 WO1996002095A1 (en) | 1994-07-08 | 1995-06-30 | Two stage clock dejitter circuit for regenerating an e4 telecommunications signal from the data component of an sts-3c signal |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69533620D1 true DE69533620D1 (de) | 2004-11-11 |
DE69533620T2 DE69533620T2 (de) | 2006-02-09 |
Family
ID=23039071
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69533620T Expired - Lifetime DE69533620T2 (de) | 1994-07-08 | 1995-06-30 | Zweistufige taktfilterschaltung zur regenerierung eines e4 nachrichtensignals aus der datenkomponente eines sts-3c signals |
Country Status (5)
Country | Link |
---|---|
US (1) | US5548534A (de) |
EP (1) | EP0770292B1 (de) |
CA (1) | CA2192161C (de) |
DE (1) | DE69533620T2 (de) |
WO (1) | WO1996002095A1 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5973628A (en) | 1997-10-03 | 1999-10-26 | Cisco Technology, Inc. | Parallel variable bit encoder |
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 |
US6721336B1 (en) | 1999-12-22 | 2004-04-13 | Alcatel | STS-n with enhanced granularity |
US6577651B2 (en) * | 2001-01-24 | 2003-06-10 | Transwitch Corp. | Methods and apparatus for retiming and realigning sonet signals |
US6836854B2 (en) * | 2001-04-03 | 2004-12-28 | Applied Micro Circuits Corporation | DS3 Desynchronizer with a module for providing uniformly gapped data signal to a PLL module for providing a smooth output data signal |
US6463111B1 (en) * | 2001-05-25 | 2002-10-08 | Transwitch Corporaton | Method and apparatus for desynchronizing a DS-3 signal and/or an E3 signal from the data portion of an STS-STM payload |
US6882662B2 (en) * | 2001-06-07 | 2005-04-19 | Applied Micro Circuits Corporation | Pointer adjustment wander and jitter reduction apparatus for a desynchronizer |
US7212599B2 (en) * | 2002-01-25 | 2007-05-01 | Applied Micro Circuits Corporation | Jitter and wander reduction apparatus |
US7227876B1 (en) * | 2002-01-28 | 2007-06-05 | Pmc-Sierra, Inc. | FIFO buffer depth estimation for asynchronous gapped payloads |
US7180914B2 (en) * | 2002-08-19 | 2007-02-20 | Applied Micro Circuits Corporation | Efficient asynchronous stuffing insertion and destuffing removal circuit |
AU2002349257A1 (en) * | 2002-11-06 | 2004-06-07 | Wuhan Fiberhome Networks Co., Ltd. | Multiple service ring of n-ringlet structure based on multiple fe, ge and 10ge |
US20040156463A1 (en) * | 2003-02-11 | 2004-08-12 | Goodloe Anthony A. | System and method for recovering a payload data stream from a framing data stream |
US8588354B2 (en) * | 2006-02-09 | 2013-11-19 | Flextronics Ap, Llc | Egress pointer smoother |
US7630397B2 (en) * | 2006-10-26 | 2009-12-08 | Transwitch Corporation | Efficient scalable implementation of VCAT/LCAS for SDH and PDH signals |
Family Cites Families (43)
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DE2023656B2 (de) * | 1970-05-14 | 1975-11-13 | Krone Gmbh, 1000 Berlin | Verfahren zur empfangsseitigen Rückgewinnung der plesiochronen Primärtakte mehrerer sendeseitig zu einem Zeitvielfach höherer Ordnung zusammengefaßter primärer Zeitvielfachsysteme |
DE2136930B2 (de) * | 1970-05-14 | 1976-10-07 | Zusatzzu:20 23 656 Krone GmbH, 1000 Berlin | Verfahren zur empfangsseitigen rueckgewinnung der plesiochronen primaertakte mehrerer sendeseitig zu einem zeitvielfach hoeherer ordnung zusammengefasster primaerer zeitvielfachsysteme und schaltungsanordnung zur durchfuehrung des verfahrens |
US4053715A (en) * | 1976-03-22 | 1977-10-11 | Trw Inc. | Stuffing channel unit for telephone pcm system |
DE2644689A1 (de) * | 1976-10-02 | 1978-04-06 | Tekade Felten & Guilleaume | Verfahren zur erzeugung eines niederfrequenten taktes aus einem hoeherfrequenten takt |
US4159535A (en) * | 1978-01-23 | 1979-06-26 | Rockwell International Corporation | Framing and elastic store circuit apparatus |
JPS5621440A (en) * | 1979-07-31 | 1981-02-27 | Fujitsu Ltd | Stuff synchronizing system |
FR2482806A1 (fr) * | 1980-05-19 | 1981-11-20 | France Etat | Procede et dispositif de synchronisation de signal numerique |
US4347620A (en) * | 1980-09-16 | 1982-08-31 | Northern Telecom Limited | Method of and apparatus for regenerating a signal frequency in a digital signal transmission system |
US4429386A (en) * | 1981-01-05 | 1984-01-31 | Siemens Corporation | Buffer arrangement of a PCM exchange system |
US4551830A (en) * | 1984-03-19 | 1985-11-05 | Rockwell International Corporation | Apparatus for providing loopback of signals where the signals being looped back have an overhead data format which is incompatible with a high speed intermediate carrier overhead format |
US4771426A (en) * | 1984-07-20 | 1988-09-13 | Unisys Corporation | Isochronous clock reconstruction |
US4685101A (en) * | 1984-12-20 | 1987-08-04 | Siemens Aktiengesellschaft | Digital multiplexer for PCM voice channels having a cross-connect capability |
US4674088A (en) * | 1985-03-07 | 1987-06-16 | Northern Telecom Limited | Method and apparatus for detecting frame synchronization |
CA1232693A (en) * | 1985-09-05 | 1988-02-09 | Alan F. Graves | Network multiplex structure |
US4791652A (en) * | 1987-06-04 | 1988-12-13 | Northern Telecom Limited | Synchronization of asynchronous data signals |
US4964142A (en) * | 1987-07-15 | 1990-10-16 | Kadiresan Annamalai | Receiver synchronization in encoder/decoder |
US4833673A (en) * | 1987-11-10 | 1989-05-23 | Bell Communications Research, Inc. | Time division multiplexer for DTDM bit streams |
US5142529A (en) * | 1988-12-09 | 1992-08-25 | Transwitch Corporation | Method and means for transferring a data payload from a first SONET signal to a SONET signal of different frequency |
US5040170A (en) * | 1988-12-09 | 1991-08-13 | Transwitch Corporation | System for cross-connecting high speed digital signals |
US5033064A (en) * | 1988-12-09 | 1991-07-16 | Transwitch Corporation | Clock dejitter circuit for regenerating DS1 signal |
US4967405A (en) * | 1988-12-09 | 1990-10-30 | Transwitch Corporation | System for cross-connecting high speed digital SONET signals |
JPH0654901B2 (ja) * | 1989-02-08 | 1994-07-20 | 富士通株式会社 | フォーマット変換制御方式 |
JP2874889B2 (ja) * | 1989-04-14 | 1999-03-24 | 株式会社日立製作所 | ポインタ変換によるフレーム位相同期方法およびその回路 |
US4928275A (en) * | 1989-05-26 | 1990-05-22 | Northern Telecom Limited | Synchronization of asynchronous data signals |
CA1326719C (en) * | 1989-05-30 | 1994-02-01 | Thomas E. Moore | Ds3 to 28 vt1.5 sonet interface circuit |
US5297180A (en) * | 1989-11-17 | 1994-03-22 | Transwitch Corporation | Digital clock dejitter circuits for regenerating clock signals with minimal jitter |
US5111485A (en) * | 1990-05-18 | 1992-05-05 | Northern Telecom Limited | Method of and circuit for synchronizing data |
US5131013A (en) * | 1990-05-30 | 1992-07-14 | At&T Bell Laboratories | Asynchronous-synchronous digital transmission signal conversion |
US5119406A (en) * | 1990-05-30 | 1992-06-02 | At&T Bell Laboratories | Digital signal synchronization employing single elastic store |
US5331641A (en) * | 1990-07-27 | 1994-07-19 | Transwitch Corp. | Methods and apparatus for retiming and realignment of STS-1 signals into STS-3 type signal |
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. |
US5157655A (en) * | 1990-10-31 | 1992-10-20 | Transwitch Corp. | Apparatus for generating a ds-3 signal from the data component of an sts-1 payload signal |
DE69228775T2 (de) * | 1991-02-08 | 1999-09-02 | Nec Corp. | Verteilte Bit für Bit Entstopfungsschaltung für bytegestopfte Mehrfachrahmendaten |
US5268936A (en) * | 1991-07-08 | 1993-12-07 | At&T Bell Laboratories | Synchronous digital signal to asynchronous digital signal desynchronizer |
US5200982A (en) * | 1991-10-02 | 1993-04-06 | Alcatel Network Systems, Inc. | In-line piece-wise linear desynchronizer |
DE69227820T2 (de) * | 1991-10-10 | 1999-05-12 | Nec Corp., Tokio/Tokyo | Sonet DS-N-Desynchronisiereinrichtung |
US5390180A (en) * | 1991-10-10 | 1995-02-14 | Nec America, Inc. | SONET DS-N desynchronizer |
US5268935A (en) * | 1991-12-20 | 1993-12-07 | At&T Bell Laboratories | Synchronous digital signal to asynchronous digital signal desynchronizer |
US5291485A (en) * | 1992-02-18 | 1994-03-01 | Alcatel Network Systems, Inc. | Method and apparatus for translating differently-sized virtual tributaries organized according to a synchronous optical network (SONET) standard |
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 |
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 |
-
1994
- 1994-07-08 US US08/272,259 patent/US5548534A/en not_active Expired - Lifetime
-
1995
- 1995-06-30 EP EP95925401A patent/EP0770292B1/de not_active Expired - Lifetime
- 1995-06-30 CA CA002192161A patent/CA2192161C/en not_active Expired - Fee Related
- 1995-06-30 WO PCT/US1995/008260 patent/WO1996002095A1/en active IP Right Grant
- 1995-06-30 DE DE69533620T patent/DE69533620T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2192161A1 (en) | 1996-01-25 |
CA2192161C (en) | 2004-06-22 |
EP0770292A1 (de) | 1997-05-02 |
EP0770292A4 (de) | 1999-04-21 |
DE69533620T2 (de) | 2006-02-09 |
US5548534A (en) | 1996-08-20 |
EP0770292B1 (de) | 2004-10-06 |
WO1996002095A1 (en) | 1996-01-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |