DE68926630D1 - Verfahren und Vorrichtung zur Rahmensynchronisierung - Google Patents

Verfahren und Vorrichtung zur Rahmensynchronisierung

Info

Publication number
DE68926630D1
DE68926630D1 DE68926630T DE68926630T DE68926630D1 DE 68926630 D1 DE68926630 D1 DE 68926630D1 DE 68926630 T DE68926630 T DE 68926630T DE 68926630 T DE68926630 T DE 68926630T DE 68926630 D1 DE68926630 D1 DE 68926630D1
Authority
DE
Germany
Prior art keywords
frame synchronization
synchronization method
frame
synchronization
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
Application number
DE68926630T
Other languages
English (en)
Other versions
DE68926630T2 (de
Inventor
Toshiaki Watanabe
Kazuo Iguchi
Tetsuo Soejima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of DE68926630D1 publication Critical patent/DE68926630D1/de
Application granted granted Critical
Publication of DE68926630T2 publication Critical patent/DE68926630T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0602—Systems characterised by the synchronising information used
    • H04J3/0605—Special codes used as synchronising signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/08—Speed or phase control by synchronisation signals the synchronisation signals recurring cyclically

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
DE68926630T 1988-03-14 1989-03-14 Verfahren und Vorrichtung zur Rahmensynchronisierung Expired - Fee Related DE68926630T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6014388A JPH0828691B2 (ja) 1988-03-14 1988-03-14 フレーム同期方式

Publications (2)

Publication Number Publication Date
DE68926630D1 true DE68926630D1 (de) 1996-07-18
DE68926630T2 DE68926630T2 (de) 1996-11-28

Family

ID=13133628

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68926630T Expired - Fee Related DE68926630T2 (de) 1988-03-14 1989-03-14 Verfahren und Vorrichtung zur Rahmensynchronisierung

Country Status (5)

Country Link
US (1) US4984238A (de)
EP (1) EP0333122B1 (de)
JP (1) JPH0828691B2 (de)
CA (1) CA1304844C (de)
DE (1) DE68926630T2 (de)

Families Citing this family (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2531272B2 (ja) * 1988-08-11 1996-09-04 日本電気株式会社 フレ―ム同期制御方式
DE69027817T2 (de) * 1989-01-09 1997-01-09 Fujitsu Ltd Digitaler signal-multiplexer und -trenner
US5081654A (en) * 1989-05-12 1992-01-14 Alcatel Na Network Systems Corp. Parallel bit detection circuit for detecting frame synchronization information imbedded within a serial bit stream and method for carrying out same
JPH07110075B2 (ja) * 1989-07-13 1995-11-22 日本電気株式会社 コードレス電話方式
JPH0758971B2 (ja) * 1989-09-07 1995-06-21 株式会社東芝 通信制御装置
JP2811802B2 (ja) * 1989-09-20 1998-10-15 ソニー株式会社 情報伝送装置
DE69022025T2 (de) * 1990-03-13 1996-04-18 Ibm Synchronisierungsschaltung für ein synchrones Vermittlungssystem.
JPH0771060B2 (ja) * 1990-04-10 1995-07-31 シャープ株式会社 フレーム同期保護回路
JPH0440125A (ja) * 1990-06-06 1992-02-10 Advantest Corp パターン同期回路
JPH0748725B2 (ja) * 1990-07-25 1995-05-24 日本電気株式会社 フレーム同期回路
US5068880A (en) * 1990-09-06 1991-11-26 The United States Of America As Represented By The Secretary Of The Navy Optical interconnects in the computer environment
JP2625249B2 (ja) * 1990-10-04 1997-07-02 日本電気アイシーマイコンシステム株式会社 フレーム検出回路
DE4032651A1 (de) * 1990-10-15 1992-04-16 Philips Patentverwaltung Anordnung zur erzeugung eines synchronisationsimpulses
US5483539A (en) * 1990-11-07 1996-01-09 Loral Aerospace Corp. Programmable PCM/TDM demultiplexer
JPH04192828A (ja) * 1990-11-27 1992-07-13 Fujitsu Ltd ワードインタリーブ方式における同期方式
US5301195A (en) * 1991-03-29 1994-04-05 Nec Corporation Circuit for multiframe synchronization
US5220676A (en) * 1991-04-19 1993-06-15 Motorola, Inc. Synchronization method and apparatus
US5148453A (en) * 1991-05-02 1992-09-15 The Institute For Space And Terrestrial Science Parallel sync detection
JP3029886B2 (ja) * 1991-07-23 2000-04-10 富士通株式会社 混成多重同期方式
US5299235A (en) * 1991-09-10 1994-03-29 Telefonaktiebolaget L M Ericsson Time synchronization of a receiver in a digital radio telephone system
JPH05160825A (ja) * 1991-12-03 1993-06-25 Fujitsu Ltd 同期回路
GB2267799B (en) * 1992-06-04 1995-11-08 Sony Broadcast & Communication Detection of synchronisation data
US5299236A (en) * 1992-11-13 1994-03-29 Toshiba America Information Systems, Inc. System and method for obtaining and maintaining synchronization of a demodulated signal
FR2698744B1 (fr) * 1992-11-30 1995-01-13 Alcatel Radiotelephone Procédé d'ajustement optimal de trames de paroles et station d'émission/réception de base mettant en Óoeuvre ce procédé.
DE4429595C1 (de) * 1994-08-20 1995-06-29 Philips Patentverwaltung Übertragungssystem zur Übertragung und zur Erkennung des Rahmenanfangs eines rahmensynchronisierten Signals
US5757869A (en) * 1995-07-28 1998-05-26 Adtran, Inc. Apparatus and method for detecting frame synchronization pattern/word in bit-stuffed digital data frame
JPH1032555A (ja) * 1996-07-18 1998-02-03 Nippon Telegr & Teleph Corp <Ntt> チャネル選択型分離回路
JP3415378B2 (ja) * 1996-11-15 2003-06-09 富士通株式会社 フレーム同期パターン処理装置並びにフレーム同期パターン検出装置及びフレーム同期パターン検出方法
US5854794A (en) * 1996-12-16 1998-12-29 Ag Communication Systems Corporation Digital transmission framing system
US6690681B1 (en) 1997-05-19 2004-02-10 Airbiquity Inc. In-band signaling for data communications over digital wireless telecommunications network
US7164662B2 (en) * 1997-05-19 2007-01-16 Airbiquity, Inc. Network delay identification method and apparatus
US6493338B1 (en) 1997-05-19 2002-12-10 Airbiquity Inc. Multichannel in-band signaling for data communications over digital wireless telecommunications networks
JPH10322298A (ja) 1997-05-20 1998-12-04 Nec Corp 時分割多重伝送におけるチャネル認識方法及びこれを用いた時分割多重伝送システム
JPH11331140A (ja) * 1998-05-15 1999-11-30 Nec Eng Ltd フレーム同期回路
US6377645B1 (en) * 1999-05-07 2002-04-23 Lucent Technologies Inc. Method and apparatus for controlling bit slippage in high-speed communications systems
US6366805B1 (en) * 1999-05-26 2002-04-02 Viasys Healthcare Inc. Time frame synchronization of medical monitoring signals
US6882765B1 (en) 1999-11-02 2005-04-19 Xros, Inc. Connection protection between clients and optical cross-connect switches
US6650803B1 (en) * 1999-11-02 2003-11-18 Xros, Inc. Method and apparatus for optical to electrical to optical conversion in an optical cross-connect switch
US6792174B1 (en) 1999-11-02 2004-09-14 Nortel Networks Limited Method and apparatus for signaling between an optical cross-connect switch and attached network equipment
US6597826B1 (en) 1999-11-02 2003-07-22 Xros, Inc. Optical cross-connect switching system with bridging, test access and redundancy
WO2001063803A1 (en) * 2000-02-22 2001-08-30 Xros, Inc. Simple, high-speed optical signal pattern and protocol detection
US7215965B2 (en) * 2001-11-01 2007-05-08 Airbiquity Inc. Facility and method for wireless transmission of location data in a voice channel of a digital wireless telecommunications network
US7362779B1 (en) * 2002-01-22 2008-04-22 Applied Micro Circuits Corporation Transmission of data frames as a plurality of subframes over a plurality of channels
US7508810B2 (en) * 2005-01-31 2009-03-24 Airbiquity Inc. Voice channel control of wireless packet data communications
US7924934B2 (en) * 2006-04-07 2011-04-12 Airbiquity, Inc. Time diversity voice channel data communications
CN101312349B (zh) * 2007-05-26 2010-08-25 华为技术有限公司 信息块编码及同步检测的方法和装置
CN101809979B (zh) 2007-10-20 2014-02-19 爱尔比奎特公司 用于车辆上的数据通信的方法
US7983310B2 (en) * 2008-09-15 2011-07-19 Airbiquity Inc. Methods for in-band signaling through enhanced variable-rate codecs
US8594138B2 (en) 2008-09-15 2013-11-26 Airbiquity Inc. Methods for in-band signaling through enhanced variable-rate codecs
US8073440B2 (en) 2009-04-27 2011-12-06 Airbiquity, Inc. Automatic gain control in a personal navigation device
US8418039B2 (en) * 2009-08-03 2013-04-09 Airbiquity Inc. Efficient error correction scheme for data transmission in a wireless in-band signaling system
US8249865B2 (en) * 2009-11-23 2012-08-21 Airbiquity Inc. Adaptive data transmission for a digital in-band modem operating over a voice channel
US8848825B2 (en) 2011-09-22 2014-09-30 Airbiquity Inc. Echo cancellation in wireless inband signaling modem

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3909541A (en) * 1974-03-11 1975-09-30 Bell Telephone Labor Inc Low-speed framing arrangement for a high-speed digital bitstream
DE2811851C2 (de) * 1978-03-17 1980-03-27 Siemens Ag, 1000 Berlin Und 8000 Muenchen Verfahren zur Rahmensynchronisierung eines Zeitmultiplexsystems
CA1205587A (en) * 1982-10-04 1986-06-03 Hitachi, Ltd. Time-division switching unit
JPS6149533A (ja) * 1984-08-17 1986-03-11 Fujitsu Ltd 時分割多重化方式
US4602367A (en) * 1984-08-27 1986-07-22 Rockwell International Corporation Method and apparatus for framing and demultiplexing multiplexed digital data
JPS61193532A (ja) * 1985-02-22 1986-08-28 Hitachi Ltd デジタル通信装置
JPS61242135A (ja) * 1985-04-19 1986-10-28 Nec Corp 同期確立方式
CA1253639A (en) * 1986-01-22 1989-05-02 Alan F. Graves Frame alignment of tributaries of a t.d.m. bit stream
JPH0775343B2 (ja) * 1986-02-14 1995-08-09 株式会社日立製作所 同期検出回路及び方法
GB8609499D0 (en) * 1986-04-18 1986-05-21 Gen Electric Co Plc Digital transmission system
NZ220548A (en) * 1986-06-18 1990-05-28 Fujitsu Ltd Tdm frame synchronising circuit
CA1298005C (en) * 1987-03-31 1992-03-24 Kazuo Iguchi Frame synchronizing apparatus
US4744081A (en) * 1987-05-18 1988-05-10 Northern Telecom Limited Frame find circuit and method

Also Published As

Publication number Publication date
US4984238A (en) 1991-01-08
JPH01233845A (ja) 1989-09-19
EP0333122B1 (de) 1996-06-12
EP0333122A3 (de) 1991-08-28
JPH0828691B2 (ja) 1996-03-21
CA1304844C (en) 1992-07-07
DE68926630T2 (de) 1996-11-28
EP0333122A2 (de) 1989-09-20

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee