NL7309599A - - Google Patents

Info

Publication number
NL7309599A
NL7309599A NL7309599A NL7309599A NL7309599A NL 7309599 A NL7309599 A NL 7309599A NL 7309599 A NL7309599 A NL 7309599A NL 7309599 A NL7309599 A NL 7309599A NL 7309599 A NL7309599 A NL 7309599A
Authority
NL
Netherlands
Application number
NL7309599A
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 filed Critical
Publication of NL7309599A publication Critical patent/NL7309599A/xx

Links

Classifications

    • 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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C15/00—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path
    • G08C15/02—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path simultaneously, i.e. using frequency division
    • G08C15/04—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path simultaneously, i.e. using frequency division the signals being modulated on carrier frequencies

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Alarm Systems (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
NL7309599A 1972-07-10 1973-07-10 NL7309599A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722233797 DE2233797C3 (en) 1972-07-10 1972-07-10 Message system for hospitals

Publications (1)

Publication Number Publication Date
NL7309599A true NL7309599A (en) 1974-01-14

Family

ID=5850176

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7309599A NL7309599A (en) 1972-07-10 1973-07-10

Country Status (8)

Country Link
AT (1) AT336450B (en)
CH (1) CH555626A (en)
DE (1) DE2233797C3 (en)
FR (1) FR2192422B3 (en)
GB (1) GB1417599A (en)
IT (1) IT991697B (en)
NL (1) NL7309599A (en)
SE (1) SE396181B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2713918C2 (en) * 1977-03-29 1984-05-03 Siemens AG, 1000 Berlin und 8000 München Frequency division multiplex signal transmission equipment
DE2917978C2 (en) * 1979-05-04 1983-12-22 Volker Joachim 4400 Münster Remme Cable communication system
JPS577492A (en) * 1980-06-13 1982-01-14 Shionogi & Co Ltd K-41 derivative
DE3032294A1 (en) * 1980-08-27 1982-03-18 Volker Joachim 4400 Münster Remme ARRANGEMENT FOR SIGNALING SIGNALS
DE3048634A1 (en) * 1980-12-23 1982-07-22 Siemens AG, 1000 Berlin und 8000 München REMOTE MONITORING DEVICE WITH AT LEAST ONE ARRANGEMENT FOR THE TRANSMISSION OF MESSAGES BY A TIME-MULTIPLEX-FREQUENCY-MULTIPLEX PROCESS
JPS58127292A (en) * 1982-01-26 1983-07-29 ニツタン株式会社 Fire sensing system
EP0087637B1 (en) * 1982-02-17 1988-11-17 NCT Neue Communikations-Technik Gesellschaft mit beschränkter Haftung Utility meter reading arrangement, particularly for heating elements and/or hot water meters in homes
GB2123193B (en) * 1982-06-19 1985-12-11 James Ernest Gleave Public address system
DE3438293C3 (en) * 1984-10-19 1993-11-18 Telefonbau & Normalzeit Gmbh Device for enabling the use of television sets
GB2251106A (en) * 1990-12-18 1992-06-24 C & I Consultants Limited Multi-point detection systems
DE4236923A1 (en) * 1992-10-31 1994-05-05 Bosch Gmbh Robert Device for the transmission of measured values via a radio frequency radio link
GB2319443B (en) * 1996-11-14 2001-08-15 Trac Satellite Systems Ltd Combined audio and television distribution
CN108924180A (en) * 2018-05-24 2018-11-30 常州市第人民医院 A kind of hospital's calling identification positioning system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1172089A (en) * 1965-09-29 1969-11-26 Superior Continental Corp A Communication System
US3423521A (en) * 1966-01-24 1969-01-21 Gordon A Friesen Associates In Television system having common transmission line for power,video signals,and command signals
US3534161A (en) * 1966-01-24 1970-10-13 Gordon A Friesen Intern Inc Television communication systems
DK115190B (en) * 1967-01-18 1969-09-15 Ericsson Telefon Ab L M Device for automatic intercom systems for hospitals.
DE1817148C3 (en) * 1968-12-27 1980-04-30 Schmelter & Claas Gmbh & Co Kg, 4834 Harsewinkel Call system, especially for communication between sick people, nursing staff and business staff in hospitals
FR2109499A6 (en) * 1970-10-28 1972-05-26 Schlumberger Inst System

Also Published As

Publication number Publication date
CH555626A (en) 1974-10-31
IT991697B (en) 1975-08-30
FR2192422A1 (en) 1974-02-08
SE396181B (en) 1977-09-05
AT336450B (en) 1977-05-10
DE2233797C3 (en) 1981-04-02
GB1417599A (en) 1975-12-10
ATA528873A (en) 1976-08-15
DE2233797A1 (en) 1974-01-24
FR2192422B3 (en) 1976-07-02
DE2233797B2 (en) 1980-08-14

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Legal Events

Date Code Title Description
BB A search report has been drawn up
BV The patent application has lapsed