CA1259659A - Radiotelephone system employing digitized speech data signalling - Google Patents

Radiotelephone system employing digitized speech data signalling

Info

Publication number
CA1259659A
CA1259659A CA000514356A CA514356A CA1259659A CA 1259659 A CA1259659 A CA 1259659A CA 000514356 A CA000514356 A CA 000514356A CA 514356 A CA514356 A CA 514356A CA 1259659 A CA1259659 A CA 1259659A
Authority
CA
Canada
Prior art keywords
sequence
word
words
accordance
correlation
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
Application number
CA000514356A
Other languages
English (en)
French (fr)
Inventor
Stephen N. Levine
Albert J. Leitich
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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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
Priority claimed from US06/771,458 external-priority patent/US4649543A/en
Application filed by Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of CA1259659A publication Critical patent/CA1259659A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • 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
    • H04L7/041—Speed or phase control by synchronisation signals using special codes 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
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
    • H04L7/042—Detectors therefor, e.g. correlators, state machines
    • 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
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
    • H04L7/046—Speed or phase control by synchronisation signals using special codes as synchronising signal using a dotting sequence
    • 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
    • H04L7/10—Arrangements for initial synchronisation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
CA000514356A 1985-08-30 1986-07-22 Radiotelephone system employing digitized speech data signalling Expired CA1259659A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US771,460 1977-02-24
US77146085A 1985-08-30 1985-08-30
US771,458 1985-08-30
US06/771,458 US4649543A (en) 1985-08-30 1985-08-30 Synchronization sequence decoder for a digital radiotelephone system

Publications (1)

Publication Number Publication Date
CA1259659A true CA1259659A (en) 1989-09-19

Family

ID=27118468

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000514356A Expired CA1259659A (en) 1985-08-30 1986-07-22 Radiotelephone system employing digitized speech data signalling

Country Status (6)

Country Link
EP (1) EP0235179A1 (de)
CN (1) CN1013540B (de)
AU (1) AU6147886A (de)
CA (1) CA1259659A (de)
IL (1) IL79415A (de)
WO (1) WO1987001490A1 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1230648A (en) * 1984-07-13 1987-12-22 Gerald P. Labedz Cellular voice and data radiotelephone system
JPH0656411B2 (ja) * 1984-12-27 1994-07-27 ソニー株式会社 スペクトラム拡散信号受信装置
EP0343570A1 (de) * 1988-05-26 1989-11-29 Ascom Autophon Ag Verfahren zur Authentifikation einer Punkt-Punkt-Verbindung in einem Mehrbenützer-Kommunikationssystem
US5040195A (en) * 1988-12-20 1991-08-13 Sanyo Electric Co., Ltd. Synchronization recovery circuit for recovering word synchronization
NZ232222A (en) * 1989-01-27 1993-03-26 British Telecomm Alternate burst communication for cordless phones: burst formats
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
US5047762A (en) * 1989-12-06 1991-09-10 Motorola, Inc. Method and apparatus for increasing co-channel utilization in a multi-station data communications network with overlapping coverage
US5001742A (en) * 1990-01-29 1991-03-19 At&T Bell Laboratories Baseband signal processing unit and method of operating the same
US5697062A (en) * 1994-02-04 1997-12-09 Advanced Micro Devices Method and apparatus for improved link establishment and monitoring in a communications system
FR2721466B1 (fr) * 1994-06-21 1996-07-26 Alcatel Mobile Comm France Signal de contrôle pour récepteurs, dispositif de synchronisation, dispositif d'égalisation, procédé de synchronisation et récepteurs correspondants.
FR2729806A1 (fr) * 1995-01-24 1996-07-26 Alcatel Mobile Comm France Paquet de transmission prevu pour la transmission discontinue
US5809093A (en) * 1995-06-02 1998-09-15 Dsc Communications Corporation Apparatus and method of frame aligning information in a wireless telecommunications system
US6581179B1 (en) * 1996-06-25 2003-06-17 Ericsson Inc. Methods for generating side information in the presence of time-selective fading
US6373899B1 (en) 1997-06-30 2002-04-16 Spacenet, Inc. Combined preamble detection and information method for burst-type digital communication system
EP1675297B1 (de) * 1999-02-24 2010-05-05 Sony Deutschland Gmbh Empfangsvorrichtung und Synchronisationsverfahren für ein digitales Nachrichtenübertragungssystem
US8861622B2 (en) 1999-02-24 2014-10-14 Sony Deutschland Gmbh Transmitting apparatus and method for a digital telecommunication system
DE102004059957A1 (de) * 2004-12-13 2006-06-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Synchronisationsvorrichtung und Vorrichtung zum Erzeugen eines Synchronisationssignals
EP2717168B1 (de) * 2012-10-05 2017-08-09 General Electric Technology GmbH Netzwerke und Verfahren für die zuverlässige Übertragung von Informationen zwischen Industriesystemen
EP3551363A4 (de) * 2016-12-09 2020-04-22 H.C. Starck Inc. Herstellung von metallteilen durch generative fertigung und wolfram-schwermetall-legierungspulver dafür

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4030033A (en) * 1975-06-13 1977-06-14 Lowell Technological Institute Research Foundation Method and apparatus for transmitting messages to and from remote locations
JPS5596747A (en) * 1979-01-17 1980-07-23 Nec Corp Adaptive signal discrimination unit
US4290143A (en) * 1979-04-19 1981-09-15 Cincinnati Electronics Corporation Transmission method and apparatus wherein binary data bits are converted into barker words and vice versa
US4312070A (en) * 1979-12-07 1982-01-19 Motorola, Inc. Digital encoder-decoder
US4382298A (en) * 1981-03-27 1983-05-03 General Electric Company Binary digit or bit restoration circuit
US4519068A (en) * 1983-07-11 1985-05-21 Motorola, Inc. Method and apparatus for communicating variable length messages between a primary station and remote stations of a data communications system

Also Published As

Publication number Publication date
WO1987001490A1 (en) 1987-03-12
CN86105396A (zh) 1987-05-13
CN1013540B (zh) 1991-08-14
EP0235179A1 (de) 1987-09-09
IL79415A (en) 1990-11-05
AU6147886A (en) 1987-03-24
IL79415A0 (en) 1986-10-31

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Legal Events

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