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BE655696A - - Google Patents

Info

Publication number
BE655696A
BE655696A BE655696DA BE655696A BE 655696 A BE655696 A BE 655696A BE 655696D A BE655696D A BE 655696DA BE 655696 A BE655696 A BE 655696A
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 BE655696A publication Critical patent/BE655696A/xx

Links

Classifications

    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/30—Mounting radio sets or communication systems
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
    • E21F17/18—Special adaptations of signalling or alarm devices
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/222—Personal calling arrangements or devices, i.e. paging systems
    • G08B5/223—Personal calling arrangements or devices, i.e. paging systems using wireless transmission
    • G08B5/224—Paging receivers with visible signalling details
    • G08B5/225—Display details
    • 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
    • H04B1/02—Transmitters
    • H04B1/03—Constructional details, e.g. casings, housings
    • H04B1/034—Portable transmitters
    • H04B1/0343—Portable transmitters to be carried on the body
    • 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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827—Portable transceivers
    • H04B1/385—Transceivers carried on the body, e.g. in helmets
    • 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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827—Portable transceivers
    • H04B1/385—Transceivers carried on the body, e.g. in helmets
    • H04B2001/3855—Transceivers carried on the body, e.g. in helmets carried in a belt or harness
    • 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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827—Portable transceivers
    • H04B1/385—Transceivers carried on the body, e.g. in helmets
    • H04B2001/3866—Transceivers carried on the body, e.g. in helmets carried on the head

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mining & Mineral Resources (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Helmets And Other Head Coverings (AREA)
BE655696D 1963-11-14 1964-11-13 BE655696A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR953778A FR1386318A (en) 1963-11-14 1963-11-14 Luminous person call device

Publications (1)

Publication Number Publication Date
BE655696A true BE655696A (en) 1965-05-13

Family

ID=8816581

Family Applications (1)

Application Number Title Priority Date Filing Date
BE655696D BE655696A (en) 1963-11-14 1964-11-13

Country Status (4)

Country Link
BE (1) BE655696A (en)
DE (1) DE1289892B (en)
FR (1) FR1386318A (en)
GB (1) GB1070187A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3101542C2 (en) * 1981-01-20 1985-09-26 Ruhrkohle Ag, 4300 Essen Call and signaling system for mining operations
GB8808055D0 (en) * 1988-04-06 1988-05-05 Auto Tracer Ltd Vehicle tracer
GB2254528A (en) * 1991-03-19 1992-10-07 Axl Systems Ltd Miners lamp communicator
CN105134292B (en) * 2015-07-03 2017-09-15 辽宁石油化工大学 A kind of method alarmed under mine using smart mobile phone mutual trust

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1777433A (en) * 1924-08-16 1930-10-07 Hale George William Signaling system
US2904645A (en) * 1956-09-17 1959-09-15 George A Sarles Helmet radios including a transistor amplifier
GB870090A (en) * 1958-01-18 1961-06-14 Lars Axel Tjeder Improvements in and relating to telephone instruments
DE1849654U (en) * 1962-01-16 1962-04-05 Kurt Rutsch ON THE HEAD OR THE HEADGEAR PORTABLE PROTECTIVE DEVICE FOR PEDESTRIANS AGAINST TRAFFIC ACCIDENTS.
DE1803171A1 (en) * 1968-10-15 1970-05-27 Raueiser Wolf Dietrich Flexible plastics container

Also Published As

Publication number Publication date
FR1386318A (en) 1965-01-22
GB1070187A (en) 1967-06-01
DE1289892B (en) 1969-02-27

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