FI74171C - Foerfarande foer synkronisering av radiosaendare foer synkron radiosaendning. - Google Patents

Foerfarande foer synkronisering av radiosaendare foer synkron radiosaendning. Download PDF

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Publication number
FI74171C
FI74171C FI843119A FI843119A FI74171C FI 74171 C FI74171 C FI 74171C FI 843119 A FI843119 A FI 843119A FI 843119 A FI843119 A FI 843119A FI 74171 C FI74171 C FI 74171C
Authority
FI
Finland
Prior art keywords
radio
frequency
station
stations
message
Prior art date
Application number
FI843119A
Other languages
English (en)
Swedish (sv)
Other versions
FI843119A0 (fi
FI74171B (fi
FI843119A (fi
Inventor
Dag E Son Aokerberg
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of FI843119A0 publication Critical patent/FI843119A0/fi
Publication of FI843119A publication Critical patent/FI843119A/fi
Publication of FI74171B publication Critical patent/FI74171B/fi
Application granted granted Critical
Publication of FI74171C publication Critical patent/FI74171C/fi

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/67—Common-wave systems, i.e. using separate transmitters operating on substantially the same frequency
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
    • G08B3/1008—Personal calling arrangements or devices, i.e. paging systems
    • G08B3/1016—Personal calling arrangements or devices, i.e. paging systems using wireless transmission

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmitters (AREA)

Claims (3)

741 71
1. Menetelmä ennen lähetystä useiden radioasemien kautta yhdellä radiokanavalla tapahtuvaa tahdistettua käyt- 5 töä varten, jotka asemat on tarkoitettu lähettämään radioitse sanoma esim. henkilöhakukutsu binäärikoodatussa muodossa, joka on vastaanotettu johtoa pitkin keskusasemalta (1), asetettu yhteen asemista (3:16) sovitetun radiolähettimen lähetystaajuus samaksi kuin tai valittuun poikkeamaan ka-10 librointilähetyksen taajuudesta, joka on vastaanotettu radioitse toiselta radioasemalta (2:2), tunnettu toimenpideaskelista sanoman lähettäminen johtoa pitkin keskusasemalta molemmille radioasemille (2:2, 3:16) sisältäen käskyn ase-15 telia lähetystaajuutta ja sanoman vastaanottaminen molemmilla radioasemilla, vastaanotetun sanoman lähettäminen radioitse toiselta radioasemalta (2:2), lähetetyn radiosignaalin vastaanottaminen asetelta-20 van radioaseman (3:16) radiovastaanottimeen, vastaanotetun radiolähetyksen ja säädettävässä oskillaattorissa (44) paikallisesti kehitetyn värähtelyn taajuuksien vertaaminen viimeksi mainitulla radioasemalla (3:16) ja samanarvoisuuden puuttuessa säädettävän oskil-25 laattorin (44) säätäminen samantaajuisuuteen.
2. Patenttivaatimuksen 1 mukainen menetelmä, tunnettu toimenpideaskelista: jaksoluvun laskeminen ja vertaaminen toisaalta super-heterodynetyyppisen vastaanottimen lopullisessa välitaa-30 juussignaalissa ja toisaalta säädettävän oskillaattorin taajuudessa (f /N), joka on ajateltu lähetystaajuus jaettuna kokonaisluvulla (N) ja sekoitettu vastaanottimen paikallis-oskillaattoritaajuudella, joka myös on jaettu kokonaisluvulla (N) .
3. Patenttivaatimuksen 1 mukainen menetelmä, tun nettu radioasemien asettelemisesta peräkkäin lähinnä
FI843119A 1982-12-09 1984-08-08 Foerfarande foer synkronisering av radiosaendare foer synkron radiosaendning. FI74171C (fi)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE8207043A SE435438B (sv) 1982-12-09 1982-12-09 Forfarande for instellning av radiosendare pa samtidig sendning
SE8207043 1982-12-09
SE8300436 1983-01-28
PCT/SE1983/000436 WO1984002437A1 (en) 1982-12-09 1983-12-07 Method and apparatus for synchronizing radio transmitters for synchronous radio transmission

Publications (4)

Publication Number Publication Date
FI843119A0 FI843119A0 (fi) 1984-08-08
FI843119A FI843119A (fi) 1984-08-08
FI74171B FI74171B (fi) 1987-08-31
FI74171C true FI74171C (fi) 1987-12-10

Family

ID=20348942

Family Applications (2)

Application Number Title Priority Date Filing Date
FI843119A FI74171C (fi) 1982-12-09 1984-08-08 Foerfarande foer synkronisering av radiosaendare foer synkron radiosaendning.
FI843120A FI74172C (fi) 1982-12-09 1984-08-08 Foerfarande foer synkronisering av radiosaendare foer synkron radiosaendning.

Family Applications After (1)

Application Number Title Priority Date Filing Date
FI843120A FI74172C (fi) 1982-12-09 1984-08-08 Foerfarande foer synkronisering av radiosaendare foer synkron radiosaendning.

Country Status (8)

Country Link
US (2) US4709401A (fi)
EP (2) EP0128210B1 (fi)
JP (2) JPS60500158A (fi)
AU (2) AU2411484A (fi)
DE (2) DE3366347D1 (fi)
FI (2) FI74171C (fi)
SE (2) SE435438B (fi)
WO (2) WO1984002437A1 (fi)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI71452C (fi) * 1985-04-10 1986-12-19 Arvo Mustonen Synkroniseringsfoerfarande foer ett lokalt t ex riksomfattandepersonsoekarnaets radiosaendare
CH663126A5 (de) * 1985-04-19 1987-11-13 Koechler Erika Fa Verfahren zur synchronisation mehrerer taktgesteuerter sender-empfaenger.
GB2183969B (en) * 1985-11-28 1989-10-04 Stc Plc Network equalisation
US5144412A (en) * 1987-02-19 1992-09-01 Olin Corporation Process for manufacturing plastic pin grid arrays and the product produced thereby
US4805196A (en) * 1987-04-29 1989-02-14 Gte Laboratories Incorporated Line delay compensation for digital transmission systems utilizing low power line drivers
US4850032A (en) * 1987-11-18 1989-07-18 Motorola, Inc. Simulcast data communications system
JP2615753B2 (ja) * 1988-02-10 1997-06-04 日本電気株式会社 自動位相調整方式
CA1325459C (en) * 1988-03-07 1993-12-21 Ivor R. Axford Multiple heart rate monitoring system
JPH02195737A (ja) * 1989-01-24 1990-08-02 Fujitsu Ltd 加入者無線システムの加入者局
US5065450A (en) * 1989-03-21 1991-11-12 Tft, Inc. Frequency modulated radio frequency broadcast network employing a synchronous frequency modulated booster system
US5046124A (en) * 1989-03-21 1991-09-03 Tft, Inc. Frequency modulated radio frequency broadcast network employing a synchronous frequency modulated booster system
FR2646302B1 (fr) * 1989-04-25 1993-01-15 Matra Communication Procede de pseudo-synchronisation d'un reseau de communication a multiplexage dans le temps et applications
US5054113A (en) * 1989-12-04 1991-10-01 Motorola, Inc. Communication system with bit sampling method in portable receiver for simulcast communication
US5155746A (en) * 1990-01-08 1992-10-13 Reliance Comm/Tec Corporation Clock synchronization scheme for digital transmission
US5014344A (en) * 1990-03-19 1991-05-07 Motorola, Inc. Method for synchronizing the transmissions in a simulcast transmission system
US5239671A (en) * 1990-11-13 1993-08-24 Pagemart, Inc. Simulcast satellite paging system with provision for signal interruption
US5127101A (en) * 1991-02-01 1992-06-30 Ericsson Ge Mobile Communications Inc. Simulcast auto alignment system
US5291518A (en) * 1991-09-06 1994-03-01 Metriplex, Inc. Link system for radio paging service
US5261118A (en) * 1991-10-04 1993-11-09 Motorola, Inc. Simulcast synchronization and equalization system and method therefor
US5257404A (en) * 1991-10-04 1993-10-26 Motorola, Inc. Simulcast synchronization and equalization system and method therefor
US5280629A (en) * 1991-12-06 1994-01-18 Motorola, Inc. Technique for measuring channel delay
ES2149782T3 (es) 1992-01-10 2000-11-16 Nec Corp Sistema de buscapersonas por radio de transmision simultanea.
CA2091962A1 (en) * 1992-03-31 1993-10-01 Mark L. Witsaman Clock synchronization system
US5369682A (en) * 1992-08-17 1994-11-29 Glenayre Electronics, Inc. Digital simulcast transmission system
US5365569A (en) * 1992-08-17 1994-11-15 Glenayre Electronics, Ltd. Digital simulcast transmission system
US5423059A (en) * 1993-07-29 1995-06-06 Motorola Inc. Method for enhancing signal quality in a simulcast communication system
US5481258A (en) * 1993-08-11 1996-01-02 Glenayre Electronics, Inc. Method and apparatus for coordinating clocks in a simulcast network
EP0703514B1 (en) * 1994-09-24 1998-07-22 Eta SA Fabriques d'Ebauches Time measurement in a communications system, a communications system and a receiver for use in such a system
EP0851608A1 (en) * 1996-12-31 1998-07-01 TELEFONAKTIEBOLAGET L M ERICSSON (publ) Transmission time delay measurement at transmission paths in a radio telecommunication system
US5873044A (en) * 1997-02-21 1999-02-16 Motorola, Inc. Method and apparatus in a radio communication system for synchronizing transmissions while maintaining full user traffic
DE10060288A1 (de) * 2000-12-05 2002-06-13 Bosch Gmbh Robert Fahrzeug mit wenigstens einem SEnsor zur Detektion des Fahrzeugumfelds
GB2415860B (en) * 2004-06-30 2007-04-18 Nokia Corp A method of providing a radio service at a remote terminal
US8543138B2 (en) 2005-03-04 2013-09-24 Qualcomm Incorporated Multi-sector broadcast paging channel
US8174364B2 (en) * 2008-10-17 2012-05-08 Michael Kenneth Pedigo Automatic means to trigger RFID transmitters

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE820911C (de) * 1949-08-03 1951-11-15 Lorenz A G C Verfahren zum Synchronisieren von Gleichwellensendern
DD117574A1 (fi) * 1974-12-19 1976-01-12
JPS5197316A (en) * 1975-02-24 1976-08-26 Eiseitsushinniokeru shuhasudokihoshiki
US4117405A (en) * 1976-11-02 1978-09-26 Louis Martinez Narrow-band radio communication system
US4255814A (en) * 1977-07-15 1981-03-10 Motorola, Inc. Simulcast transmission system
US4188582A (en) * 1978-04-10 1980-02-12 Motorola, Inc. Simulcast transmission system having phase-locked remote transmitters
US4208630A (en) * 1978-10-19 1980-06-17 Altran Electronics, Inc. Narrow band paging or control radio system
DE3020176A1 (de) * 1980-05-28 1981-12-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren und anordnung zum zeitgleichen aussenden von nachrichten ueber mehrere gleichwellensender
DE3035679A1 (de) * 1980-09-22 1982-05-06 Siemens AG, 1000 Berlin und 8000 München Verfahren und schaltungsanordnung zum einstellen der zeitpunkte des aussendens von signalen von gleichwellen-funksendern, insbesondere einer fahrzeugverkehrsleitanlage
DE3035759A1 (de) * 1980-09-22 1982-05-13 Siemens AG, 1000 Berlin und 8000 München Verfahren und schaltungsanordnung zum ausgleichen von laufzeitunterschieden bei der uebertragung von signalen zu gleichwellen-funksendern
US4411007A (en) * 1981-04-29 1983-10-18 The Manitoba Telephone System Distributed network synchronization system
US4578815A (en) * 1983-12-07 1986-03-25 Motorola, Inc. Wide area coverage radio communication system and method

Also Published As

Publication number Publication date
JPS60500158A (ja) 1985-01-31
WO1984002437A1 (en) 1984-06-21
EP0128210A1 (en) 1984-12-19
EP0128210B1 (en) 1986-09-17
US4709402A (en) 1987-11-24
FI74172B (fi) 1987-08-31
FI843120A (fi) 1984-08-08
EP0128209B1 (en) 1986-10-15
SE8400169L (sv) 1984-01-13
FI74172C (fi) 1987-12-10
SE456294B (sv) 1988-09-19
FI843119A0 (fi) 1984-08-08
SE435438B (sv) 1984-09-24
AU2411484A (en) 1984-07-05
EP0128209A1 (en) 1984-12-19
SE8207043D0 (sv) 1982-12-09
WO1984002436A1 (en) 1984-06-21
FI74171B (fi) 1987-08-31
DE3366347D1 (en) 1986-10-23
US4709401A (en) 1987-11-24
SE8400169D0 (sv) 1984-01-13
SE8207043L (sv) 1984-06-10
JPS60500040A (ja) 1985-01-10
DE3367056D1 (en) 1986-11-20
FI843119A (fi) 1984-08-08
FI843120A0 (fi) 1984-08-08
AU2411584A (en) 1984-07-05
JPH0423968B2 (fi) 1992-04-23

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Owner name: OY L M ERICSSON AB