FR2176004B1 - - Google Patents

Info

Publication number
FR2176004B1
FR2176004B1 FR7308933A FR7308933A FR2176004B1 FR 2176004 B1 FR2176004 B1 FR 2176004B1 FR 7308933 A FR7308933 A FR 7308933A FR 7308933 A FR7308933 A FR 7308933A FR 2176004 B1 FR2176004 B1 FR 2176004B1
Authority
FR
France
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
FR7308933A
Other languages
French (fr)
Other versions
FR2176004A1 (xx
Inventor
L R Isheden
A E Sandlin
C A Hagland
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of FR2176004A1 publication Critical patent/FR2176004A1/fr
Application granted granted Critical
Publication of FR2176004B1 publication Critical patent/FR2176004B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B26/00—Alarm systems in which substations are interrogated in succession by a central station
    • G08B26/001—Alarm systems in which substations are interrogated in succession by a central station with individual interrogation of substations connected in parallel
    • G08B26/003—Alarm systems in which substations are interrogated in succession by a central station with individual interrogation of substations connected in parallel replying the identity and the state of the sensor
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B26/00—Alarm systems in which substations are interrogated in succession by a central station

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Time-Division Multiplex Systems (AREA)
FR7308933A 1972-03-15 1973-03-13 Expired FR2176004B1 (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE327772A SE374970B (xx) 1972-03-15 1972-03-15

Publications (2)

Publication Number Publication Date
FR2176004A1 FR2176004A1 (xx) 1973-10-26
FR2176004B1 true FR2176004B1 (xx) 1976-09-10

Family

ID=20261764

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7308933A Expired FR2176004B1 (xx) 1972-03-15 1973-03-13

Country Status (6)

Country Link
BR (1) BR7301814D0 (xx)
FR (1) FR2176004B1 (xx)
GB (1) GB1419137A (xx)
IT (1) IT981362B (xx)
NO (1) NO132448C (xx)
SE (1) SE374970B (xx)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54118199A (en) * 1978-03-07 1979-09-13 Hochiki Co Information transmitter
CH651688A5 (de) * 1980-06-23 1985-09-30 Cerberus Ag Verfahren zur uebertragung von messwerten in einer brandmeldeanlage und einrichtung zur durchfuehrung des verfahrens.
FR2688891A1 (fr) * 1981-04-03 1993-09-24 Thomson Csf Dispositif de test d'un groupement de recepteurs.
GB2173618B (en) * 1985-04-12 1988-09-14 Emi Ltd Alarm monitoring installation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1264135A (fr) * 1959-06-19 1961-06-19 Int Standard Electric Corp Système de signalisation électrique
FR1389164A (fr) * 1963-03-04 1965-02-12 Perfectionnements apportés aux installations de surveillance de postes éloignés à partir d'un poste central
US3601806A (en) * 1969-06-23 1971-08-24 North American Rockwell Digital time multiplexed bidirectional communications system

Also Published As

Publication number Publication date
GB1419137A (en) 1975-12-24
NO132448C (xx) 1975-11-12
IT981362B (it) 1974-10-10
SE374970B (xx) 1975-03-24
BR7301814D0 (pt) 1974-07-11
NO132448B (xx) 1975-08-04
FR2176004A1 (xx) 1973-10-26

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Legal Events

Date Code Title Description
ST Notification of lapse