FR2451679A1 - Systeme de communication a deux voies et procede de synchronisation - Google Patents

Systeme de communication a deux voies et procede de synchronisation

Info

Publication number
FR2451679A1
FR2451679A1 FR8003086A FR8003086A FR2451679A1 FR 2451679 A1 FR2451679 A1 FR 2451679A1 FR 8003086 A FR8003086 A FR 8003086A FR 8003086 A FR8003086 A FR 8003086A FR 2451679 A1 FR2451679 A1 FR 2451679A1
Authority
FR
France
Prior art keywords
unit
communication system
way communication
synchronization method
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.)
Granted
Application number
FR8003086A
Other languages
English (en)
French (fr)
Other versions
FR2451679B3 (enExample
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
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of FR2451679A1 publication Critical patent/FR2451679A1/fr
Application granted granted Critical
Publication of FR2451679B3 publication Critical patent/FR2451679B3/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop

Landscapes

  • Synchronisation In Digital Transmission Systems (AREA)
  • Selective Calling Equipment (AREA)
  • Mobile Radio Communication Systems (AREA)
FR8003086A 1979-03-12 1980-02-12 Systeme de communication a deux voies et procede de synchronisation Granted FR2451679A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/019,378 US4229741A (en) 1979-03-12 1979-03-12 Two-way communications system and method of synchronizing

Publications (2)

Publication Number Publication Date
FR2451679A1 true FR2451679A1 (fr) 1980-10-10
FR2451679B3 FR2451679B3 (enExample) 1981-12-11

Family

ID=21792874

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8003086A Granted FR2451679A1 (fr) 1979-03-12 1980-02-12 Systeme de communication a deux voies et procede de synchronisation

Country Status (4)

Country Link
US (1) US4229741A (enExample)
DE (1) DE3008684A1 (enExample)
FR (1) FR2451679A1 (enExample)
GB (1) GB2047049B (enExample)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8401101A (nl) * 1984-04-06 1985-11-01 Philips Nv Draaggolfsynchroniseersysteem en daarvoor geschikt basisstation.
NL8701483A (nl) * 1986-08-01 1990-03-01 Bbc Brown Boveri & Cie Werkweijze voor de frquentieregeling van signalen en schakeling voor het toepassen van deze werkwijze
FI79636C (fi) * 1986-12-01 1990-01-10 Nokia Mobile Phones Ltd En baervaogsreglerande koppling av en foer en radiotelefonanordning avsedd fm-syntetisator.
US4811420A (en) * 1987-07-08 1989-03-07 International Mobile Machines Corporation Initialization of communication channel between a subsciber station and a base station in a subscriber communication system
US5430759A (en) * 1992-08-20 1995-07-04 Nexus 1994 Limited Low-power frequency-hopped spread spectrum reverse paging system
US5335246A (en) * 1992-08-20 1994-08-02 Nexus Telecommunication Systems, Ltd. Pager with reverse paging facility
US5712867A (en) * 1992-10-15 1998-01-27 Nexus 1994 Limited Two-way paging apparatus having highly accurate frequency hopping synchronization
EP0632603B1 (en) * 1993-06-30 1999-10-06 Nec Corporation Antenna apparatus having individual transmitting and receiving antenna elements for different frequencies
US5530452A (en) * 1993-10-21 1996-06-25 Nexus Telecommunication Systems Ltd. Method of synchronizing spread spectrum radio transmitters
DE4410542B4 (de) * 1994-03-26 2004-07-22 Fuba Automotive Gmbh & Co. Kg Anordnung für den Betrieb von Funkgeräten
US5550813A (en) * 1994-08-31 1996-08-27 Lucent Technologies Inc. Cellular base station transmit-receive system
US5699388A (en) * 1995-06-21 1997-12-16 Motorola, Inc. System and method for fully distributed synchronization of a radio communication network
EP0992761B1 (de) * 1998-10-08 2002-11-13 Oerlikon Contraves Pyrotec AG Verfahren zum Korrigieren einer vorprogrammierten Auslösung eines Vorganges in einem drallstabilisierten Geschoss, Vorrichtung zur Durchführung des Verfahrens und Verwendung der Vorrichtung
DE10005503C2 (de) * 2000-02-08 2003-01-30 Atmel Germany Gmbh Verfahren zur Erhöhung der Manipulationssicherheit bei einer bidirektionalen, kontaktlosen Datenübertragung
US6636171B2 (en) * 2001-01-16 2003-10-21 Chen-Ping Chang Automobile bi-direction remote control transmission circuitry
US7519400B2 (en) * 2005-05-27 2009-04-14 Dei Headquarters, Inc. Multi-modulation remote control communication system
JP2011103603A (ja) * 2009-11-11 2011-05-26 Sony Corp 無線送信装置、無線受信装置、無線通信システム及び無線通信方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3550134A (en) * 1967-12-27 1970-12-22 Bell Telephone Labor Inc Phase locked loop double carrier transmission system
US3546701A (en) * 1967-12-27 1970-12-08 Bell Telephone Labor Inc Phase locked loop bilateral transmission system including auxiliary automatic phase control
US3795772A (en) * 1972-05-01 1974-03-05 Us Navy Synchronization system for pulse orthogonal multiplexing systems
US3825830A (en) * 1972-12-06 1974-07-23 Motorola Inc Offset oscillator system for radio transmitter and receiver
JPS5197316A (en) * 1975-02-24 1976-08-26 Eiseitsushinniokeru shuhasudokihoshiki
SE393726B (sv) * 1975-12-02 1977-05-16 Ericsson Telefon Ab L M Anleggning for duplexoverforing medelst fasmultiplex over en tvatradsforbindelse mellan en huvudterminal och en slavterminal
US4053889A (en) * 1976-07-27 1977-10-11 Motorola, Inc. Non-linear spread spectrum transmitter/receiver for a homing system

Also Published As

Publication number Publication date
US4229741A (en) 1980-10-21
GB2047049B (en) 1983-04-20
FR2451679B3 (enExample) 1981-12-11
DE3008684A1 (de) 1980-09-25
GB2047049A (en) 1980-11-19

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Legal Events

Date Code Title Description
ST Notification of lapse
AR Application made for restoration
BR Restoration of rights