FR2401578A1 - Installation radioelectrique a appel selectif des abonnes entre eux, avec interposition d'un centre - Google Patents

Installation radioelectrique a appel selectif des abonnes entre eux, avec interposition d'un centre

Info

Publication number
FR2401578A1
FR2401578A1 FR7824744A FR7824744A FR2401578A1 FR 2401578 A1 FR2401578 A1 FR 2401578A1 FR 7824744 A FR7824744 A FR 7824744A FR 7824744 A FR7824744 A FR 7824744A FR 2401578 A1 FR2401578 A1 FR 2401578A1
Authority
FR
France
Prior art keywords
subscribers
interposition
installation
radioelectric
center
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
FR7824744A
Other languages
English (en)
Other versions
FR2401578B1 (fr
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of FR2401578A1 publication Critical patent/FR2401578A1/fr
Application granted granted Critical
Publication of FR2401578B1 publication Critical patent/FR2401578B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/18—Service support devices; Network management devices
    • H04W88/185—Selective call encoders for paging networks, e.g. paging centre devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/18—Service support devices; Network management devices
    • H04W88/185—Selective call encoders for paging networks, e.g. paging centre devices
    • H04W88/187—Selective call encoders for paging networks, e.g. paging centre devices using digital or pulse address codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Optical Communication System (AREA)

Abstract

Installation d'appel de personnes, dont les abonnés peuvent s'appeler mutuellement à l'aide de postes émetteur-récepteurs portatifs, avec interposition d'un système émetteur-récepteur centraL Afin que les abonnés puissent disposer d'appareils légers faciles à porter, ces derniers sont établis de manière à émettre un code simple. Le central comprend des convertisseurs pour la conversion des signaux d'appel reçus, affectés d'un code simple, en signaux d'appel affectés d'un code offrant une sécurité de transmission.
FR7824744A 1977-08-25 1978-08-25 Installation radioelectrique a appel selectif des abonnes entre eux, avec interposition d'un centre Granted FR2401578A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2738278A DE2738278C2 (de) 1977-08-25 1977-08-25 Funkanlage mit drahtloser Übertragung zwischen tragbaren Sende-Empfangs-Geräten und mit selektivem Anruf der Teilnehmer untereinander unter Zwischenschaltung einer Zentrale

Publications (2)

Publication Number Publication Date
FR2401578A1 true FR2401578A1 (fr) 1979-03-23
FR2401578B1 FR2401578B1 (fr) 1983-05-27

Family

ID=6017239

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7824744A Granted FR2401578A1 (fr) 1977-08-25 1978-08-25 Installation radioelectrique a appel selectif des abonnes entre eux, avec interposition d'un centre

Country Status (12)

Country Link
AT (1) AT377882B (fr)
BE (1) BE869907A (fr)
CH (1) CH625378A5 (fr)
DE (1) DE2738278C2 (fr)
FI (1) FI782557A (fr)
FR (1) FR2401578A1 (fr)
GB (1) GB2021296B (fr)
IT (1) IT1098749B (fr)
NL (1) NL7808703A (fr)
NO (1) NO149449C (fr)
SE (1) SE434590B (fr)
WO (1) WO1979000110A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5961644U (ja) * 1982-10-15 1984-04-23 日本電気株式会社 選択呼出受信機
DE3315625A1 (de) * 1983-04-29 1984-10-31 Robert Bosch Gmbh, 7000 Stuttgart Verfahren zum uebertragen von digitalen rufkennzeichen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1616340B2 (de) * 1968-01-25 1973-10-04 Telefunken Patentverwertungsgesellschaft Mbh, 7900 Ulm Wechselsprechanlage mit draht loser Übertragung zwischen Teilnehmern mit tragbaren Geraten über eine Zentrale
DE1931480B2 (de) * 1969-06-20 1976-03-11 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltung zur vorselektion von im gleichen frequenzabstand voneinander liegenden sendern
FR2152346B1 (fr) * 1971-09-06 1975-07-11 Materiel Telephonique
CH573688A5 (fr) * 1974-07-11 1976-03-15 Hasler Ag

Also Published As

Publication number Publication date
ATA577378A (de) 1984-09-15
DE2738278C2 (de) 1982-06-03
DE2738278A1 (de) 1979-03-01
NO149449B (no) 1984-01-09
FI782557A (fi) 1979-02-26
GB2021296B (en) 1982-04-07
CH625378A5 (fr) 1981-09-15
IT7827001A0 (it) 1978-08-24
GB2021296A (en) 1979-03-08
NL7808703A (nl) 1979-02-27
SE434590B (sv) 1984-07-30
AT377882B (de) 1985-05-10
BE869907A (fr) 1978-12-18
WO1979000110A1 (fr) 1979-03-08
SE7903041L (sv) 1979-04-05
IT1098749B (it) 1985-09-07
FR2401578B1 (fr) 1983-05-27
NO782875L (no) 1979-02-27
NO149449C (no) 1984-04-18

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Legal Events

Date Code Title Description
TP Transmission of property
CD Change of name or company name
ST Notification of lapse