IT1116191B - Impianto di comunicazione a due vie comandato a voce in particolare per elemetti protettivi - Google Patents

Impianto di comunicazione a due vie comandato a voce in particolare per elemetti protettivi

Info

Publication number
IT1116191B
IT1116191B IT49130/79A IT4913079A IT1116191B IT 1116191 B IT1116191 B IT 1116191B IT 49130/79 A IT49130/79 A IT 49130/79A IT 4913079 A IT4913079 A IT 4913079A IT 1116191 B IT1116191 B IT 1116191B
Authority
IT
Italy
Prior art keywords
communication system
way communication
protective elements
voice controlled
system voice
Prior art date
Application number
IT49130/79A
Other languages
English (en)
Other versions
IT7949130A0 (it
Original Assignee
White Maynard E
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
Priority claimed from US05/909,685 external-priority patent/US4166978A/en
Application filed by White Maynard E filed Critical White Maynard E
Publication of IT7949130A0 publication Critical patent/IT7949130A0/it
Application granted granted Critical
Publication of IT1116191B publication Critical patent/IT1116191B/it

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
    • 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
    • H04B1/40—Circuits
    • H04B1/44—Transmit/receive switching
    • H04B1/46—Transmit/receive switching by voice-frequency signals; by pilot signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Transceivers (AREA)
  • Mobile Radio Communication Systems (AREA)
IT49130/79A 1978-05-25 1979-05-22 Impianto di comunicazione a due vie comandato a voce in particolare per elemetti protettivi IT1116191B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/909,685 US4166978A (en) 1976-09-07 1978-05-25 Two-way voice controlled communication system

Publications (2)

Publication Number Publication Date
IT7949130A0 IT7949130A0 (it) 1979-05-22
IT1116191B true IT1116191B (it) 1986-02-10

Family

ID=25427662

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49130/79A IT1116191B (it) 1978-05-25 1979-05-22 Impianto di comunicazione a due vie comandato a voce in particolare per elemetti protettivi

Country Status (8)

Country Link
JP (1) JPS54154212A (it)
BR (1) BR7901085A (it)
CA (1) CA1116239A (it)
DE (1) DE2920834A1 (it)
FR (1) FR2427014A1 (it)
GB (1) GB2021902B (it)
IT (1) IT1116191B (it)
MX (1) MX145103A (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2271247B (en) * 1992-10-05 1997-02-19 Motorola Israel Ltd A radio telephone for a vehicle
DE9409319U1 (de) * 1994-06-08 1995-07-06 Berlin Florence Sende-Empfangsgerät
US8224286B2 (en) * 2007-03-30 2012-07-17 Savox Communications Oy Ab (Ltd) Radio communication device

Also Published As

Publication number Publication date
CA1116239A (en) 1982-01-12
GB2021902A (en) 1979-12-05
DE2920834A1 (de) 1979-11-29
IT7949130A0 (it) 1979-05-22
BR7901085A (pt) 1979-11-20
JPS54154212A (en) 1979-12-05
GB2021902B (en) 1982-08-25
MX145103A (es) 1982-01-05
FR2427014A1 (fr) 1979-12-21

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