BE677425A - - Google Patents

Info

Publication number
BE677425A
BE677425A BE677425DA BE677425A BE 677425 A BE677425 A BE 677425A BE 677425D A BE677425D A BE 677425DA BE 677425 A BE677425 A BE 677425A
Authority
BE
Belgium
Application number
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 BE677425A publication Critical patent/BE677425A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/74—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus
BE677425D 1965-03-12 1966-03-07 BE677425A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT548665 1965-03-12

Publications (1)

Publication Number Publication Date
BE677425A true BE677425A (xx) 1966-08-01

Family

ID=11120253

Family Applications (1)

Application Number Title Priority Date Filing Date
BE677425D BE677425A (xx) 1965-03-12 1966-03-07

Country Status (9)

Country Link
US (1) US3487309A (xx)
AT (1) AT278102B (xx)
BE (1) BE677425A (xx)
CH (1) CH440389A (xx)
DE (1) DE1516018B1 (xx)
GB (1) GB1089223A (xx)
NL (1) NL6603245A (xx)
NO (1) NO119996B (xx)
SE (1) SE326995B (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2128145A1 (xx) * 1971-03-04 1972-10-20 Pye Ltd

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3593147A (en) * 1969-03-04 1971-07-13 Itt Equal gain diversity receiving system with squelch
AT344252B (de) * 1976-12-02 1978-07-10 Siemens Ag Oesterreich Schalteinrichtung zur summierung von signalen auf parallelen uebertragungswegen
JPS5377110A (en) * 1976-12-20 1978-07-08 Nec Corp Transmission fault reduction system
US4475049A (en) * 1981-05-07 1984-10-02 Smith Robert E Redundant serial communication circuit

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2892930A (en) * 1955-01-10 1959-06-30 Motorola Inc Communication system
US3048840A (en) * 1956-03-06 1962-08-07 Itt Communication system
NL98362C (xx) * 1958-02-19
US2947861A (en) * 1958-09-29 1960-08-02 Collins Radio Co Diversity combiner control system
US3204204A (en) * 1962-09-26 1965-08-31 Automatic Elect Lab Fast-switching arrangement for the transfer of communication channels
US3296532A (en) * 1963-04-02 1967-01-03 Raytheon Co Diversity combiners

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2128145A1 (xx) * 1971-03-04 1972-10-20 Pye Ltd

Also Published As

Publication number Publication date
US3487309A (en) 1969-12-30
DE1516018B1 (de) 1970-05-27
AT278102B (de) 1970-01-26
SE326995B (xx) 1970-08-10
GB1089223A (en) 1967-11-01
CH440389A (it) 1967-07-31
NL6603245A (xx) 1966-09-13
NO119996B (xx) 1970-08-10

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