FR2502372B1 - - Google Patents

Info

Publication number
FR2502372B1
FR2502372B1 FR8105796A FR8105796A FR2502372B1 FR 2502372 B1 FR2502372 B1 FR 2502372B1 FR 8105796 A FR8105796 A FR 8105796A FR 8105796 A FR8105796 A FR 8105796A FR 2502372 B1 FR2502372 B1 FR 2502372B1
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
FR8105796A
Other languages
French (fr)
Other versions
FR2502372A1 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR8105796A priority Critical patent/FR2502372A1/en
Priority to AU82054/82A priority patent/AU8205482A/en
Priority to PCT/FR1982/000053 priority patent/WO1982003160A1/en
Priority to EP19820900813 priority patent/EP0074969A1/en
Publication of FR2502372A1 publication Critical patent/FR2502372A1/en
Application granted granted Critical
Publication of FR2502372B1 publication Critical patent/FR2502372B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/22—Methods or devices for transmitting, conducting or directing sound for conducting sound through hollow pipes, e.g. speaking tubes
    • 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
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/04—Supports for telephone transmitters or receivers
    • H04M1/05—Supports for telephone transmitters or receivers specially adapted for use on head, throat or breast

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Signal Processing (AREA)
  • Helmets And Other Head Coverings (AREA)
FR8105796A 1981-03-20 1981-03-20 Intercom system for motor cycle driver and passenger - has hollow tubes between headphones and microphone in each helmet and allows their retraction into thickness of padding Granted FR2502372A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR8105796A FR2502372A1 (en) 1981-03-20 1981-03-20 Intercom system for motor cycle driver and passenger - has hollow tubes between headphones and microphone in each helmet and allows their retraction into thickness of padding
AU82054/82A AU8205482A (en) 1981-03-20 1982-03-19 Device for communicating between users of a vehicle
PCT/FR1982/000053 WO1982003160A1 (en) 1981-03-20 1982-03-19 Device for communicating between users of a vehicle
EP19820900813 EP0074969A1 (en) 1981-03-20 1982-03-19 Device for communicating between users of a vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8105796A FR2502372A1 (en) 1981-03-20 1981-03-20 Intercom system for motor cycle driver and passenger - has hollow tubes between headphones and microphone in each helmet and allows their retraction into thickness of padding

Publications (2)

Publication Number Publication Date
FR2502372A1 FR2502372A1 (en) 1982-09-24
FR2502372B1 true FR2502372B1 (en) 1985-05-24

Family

ID=9256544

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8105796A Granted FR2502372A1 (en) 1981-03-20 1981-03-20 Intercom system for motor cycle driver and passenger - has hollow tubes between headphones and microphone in each helmet and allows their retraction into thickness of padding

Country Status (1)

Country Link
FR (1) FR2502372A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE425590C (en) * 1925-04-18 1926-02-20 Otto Busemann Dr Device for the transmission of conversations, in particular between motorcycle driver and passenger
FR2142600A1 (en) * 1971-06-21 1973-02-02 Lustig Harvey
US3693748A (en) * 1971-11-10 1972-09-26 Doyal H Jones Motorcycle helmet communication system
FR2282767A1 (en) * 1974-08-22 1976-03-19 Poulain Bernard Protective helmet with integral earphones - has main earphone on rigid wall linked to cavities in padding by acoustic channels
FR2368236A1 (en) * 1976-10-22 1978-05-19 Greze Andre Safety helmet construction for motorcyclist - incorporates microphones and headphones to allow communication between rider and passenger

Also Published As

Publication number Publication date
FR2502372A1 (en) 1982-09-24

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Legal Events

Date Code Title Description
ST Notification of lapse